E574Volume 3

Tianjin Second Batch of World Bank Loan:

Urban Development and Environment Project

Environment Impact General Statement

(Draft)

Part one

Tianjin Academy of Environmental Sciences

Tianjin Environmental Impact Assessment C'enter

March 25, 2002

FILE COPY

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EIA Executive Agency:

Tianjin Academy of Environmental Sciences

Director: Li Xiaoning, Senior Engineer

Tianjin Environmental Impact Assessment Center

Director: Zhang Jianwen, Senior Engineer

EIA Collaborative Agency:

The Third Railway Survey and Design Institute;

Tianjin Investigation Design & Research Institute of Water Resource &

Hydro-Power (TIDI)

Environmental Monitoring Agency:

Tianjin Environmental Monitoring Center

Tianjin Heping District Environmental Monitoring Station

Tianjin Hedong District Environmental Monitoring Station

Tianjin Hebei District Environmental Monitoring Station

Tianjin Hexi District Environrmental Monitoring Station

Tianjin Hongqiao District Environmental Monitoring Station

Tianjin Nankai District Environmental Monitoring Station

Tianjin BeiChen District Environmental Monitoring Station

Tianjin Dongli District Environmnental Monitoring Station

Tianjin Jinnan District Environmental Monitoring Station

Tianjin Xiqing District Environmental Monitoring Station

I EAS.IP 1

APR 2 2 2002

UEC7ZV

Environmental Impact Statement Superintendent:

Bao Jinling, Professor Environmental Impact General Statement

Zhang Lu, Senior Engineer Transportation Improvement Project

Li Wangqing, Professor Dagu Sewage Canal Renovation

Kuo Wen, Senior Engineer Shuanglin WWTP

Sang Tianbao, Senior Engineer Shuanglin WWTP

Zheng Hongqi, Senior Engineer Drainage System Renovation

Environmental Impact Statement Reviewers:

Li Xiaoning, Senior Engineer, Director

Zhang Jianwen, Senior Engineer, Director

EIA Organizer:

Du Shutian, Senior Engineer

Environmental Impact Statement Writers:

Yu Xiuling Wan Zhe Wan Xin Wan Shimin

Shi Liangsheng Sun Yichao Sun Xiaorong Liu Jizhao

Liu Peng Wu Guanghong Chen Guang Chen Chao

Yang NaiKe Yang Mei Li Jinzhong Zhang Haiyan

Zhang Zhesheng Li Jiashui Meng Xiaojun Luo Li

Hou Xiaomin Dang Hui Gao Bo Huang Haoyun

Hang Zhengwang Xie Linhai

Content

Chapter 1 General

1. Overview. .-------.. ---..-..--------------------------------------..- 1-1

2. Construction Areas Environmental Survey . --. ----.-.----.- 2-1

3. Environmental Impact Key Elements Identification and Evaluation FactorsScreening . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 3-1

Chapter 2. Water Drainage Component EnvironmentalImpact Evaluation

4. Profile and Analysis .---......--------------------------------------- 4-1

5. Alternatives .-----.. --....------------------------------------------- 5-16. Environment status evaluation . -......-..-------- 6-1

7. Working Range ........................................................................ 7-1

8. The Assessment of the Environmental Impact During the WorkingPeriod .................................................................................... 8-1

9. Disposing sludge and evaluating the environmental effect .- 9-1

10. The assessment on the processing risks on Sewage Disposal factory................................ 10-1................... 10,1

11. Control the total sum of pollutant-.-------------------------------------------11-112. Safety Measures .---..-----..----..------....----. 12-113. Plan of collecting land, removing and migrants arrangement . 13-114. The analysis of the efficiency of social environment-.----------------14-1

15. Public participation. .--------------------------------- 15-116. Evaluation Conclusions and Proposals .-.--.-----------------.----------- 16-1

Chapter 3 Evaluation of the effects of the traffic projecton the environment

17. An introduction to the project................................................17-1

18. Alternatives ...........................................................................-18-1

19. Evaluation of the current situation of environmental air and prediction of its

effects.1 ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... l9-1

20. Prediction and evaluation of the current situation and effect of

environmental noises. .-..---.. --.. ---------.. --------------------- 20-1

21. Assessment on Influence of Social Environment-.----------------------21-1

22. Effect on Urban Ecological Environment ................................. 22-1

23. Public Participation -------------------------------------------------------------- 23-1

24. Analysis of Impacts on Environment by Relocation of Houses and

Facilities........................................................................24-1

Chapter 4 Environmental Management Plan

25. Environmental Management and Environmental Monitoring . 25-1

File 1: General

1. OverviewIn order to solve the problems of Tianjin's environment and development andto solve the problems that have long plagued Tianjin citizens in areas ofdrainage and transportations, Tianjin City intends to use a second batch ofWorld Bank (WB) loan for the purpose of Tianjin urban development andenvironment project whose investment is near 2.2 billion RMB.

As the third (in China), second (in North of China) largest city with a populationupdated at 2000 of 10.0114 million, Tianjin is the economic and cultural centerof the north of China. Recent years have seen a rapid social and economicdevelopment in the city and the evident improvement of people's livingstandard, and accordingly the increasing urban waster water discharge andthe increasing amount of cars running in the city. Despite the incessantconstruction of infrastructures, due to lag-time feature of the control measuresadopted and the historical overdebt, however, the development of urbanenvironment and transportations have been lagging behind too far not to affectthe normal life of citizens. According to the statistics of some departmentsconcerned, in 2000 the municipal total waster water discharge amounted to599 million tons, the treatment of which accounted only for 45%. Thus largeamount of untreated waste water has flown via the urban sewage system intorivers of Haihe river valley, further been discharged into Bohai sea ending in aserious worsening situation of the Tianjin coastal waters of Bohai sea. In themeantime, the ever increasing number of urban cars has also presented hugepressure to the whole urban transportation system. Statistics show that ,at theend of 2000, the actual length of urban roads is 3,608kms - a 2.0% increase ofthe year before; while at the end of 2000, there are 405,000 powered vehicles(excl. motorcycles) - a 11.4% yearly growth which will be gaining moremomentum with the fast enhancement of per capita income and the steppingup of passenger cars into families, this is turn will bring bigger and biggerpressure onto Tianjin's traffics.

These urban facilities' problems have become one of the key issues forconsideration by Tianjin Municipal Government. Acting upon the "Bohai SeaBlue Water Restoration Program" and the "Haihe River Valley PollutionPrevention And Control Program" approved by the State Council of Chinaas well as the Tianjin's own Overall Planning, Tianjin City has decided to usethe second batch of WB loan for the purpose of urban development andenvironment project on the basis of the good performance of the first batch ofWB loans for urban development and environment project. The second projectincludes two parts - the improvement of urban water drainage and the citytraffics. The completion of which will help improve the water pollution status of

Haihe River Valley and Bohai Sea, better the urban districts' waterenvironment and the eco and sanitary environment, advance the rational useof water resources, mitigate the urban traffic jams so to promote thesustainable development of Tianjin Area and to raise the quality of life for thepeople.

Now, Tianjin's second WB loan project has gone into the preliminarypreparation stage prior to construction. The reports on environmental influenceof all components have been basically completed. And on that basis, TianjinEnvironmental Protection Science Research Institute (TEPSR), commissionedby Tianjin Urban Facilities Engineering Company, is responsible for the sum-up of all the environment reports of the component projects to enable them tobetter comply with the relevant rules concerning the environment evaluation ofinternational financial loan projects formulated by China and with thepertaining rules of WB on "Environmental Evaluation".

1.1 Project ProfileTianjin's Second WB loan project includes: urban development andenvironment mainly covering water drainage and transportation improvement( see fig. 1-1 for the composition of the project, fig 1-2 for geographicallocations of the project. Now the brief introduction of the component as follows:* Water Drainage: it falls into 5 components, they are:

(1). Pipe network construction: construction of three main water drainagesystems of Tianjin (Nanbei Cang, Fukang Rd, Nanjiao Wai). It takescompletion of 89,015 m of rain pipelines, 49,688 m of sewage lines -enable a collection area of 1,262.52 hecs for rain water and 3,937 hecsfor sewage water.

(2) Dagu sewage canal renovation: the renovation of one of the two mainsewage rivers in Tianjin. It includes river bed dredging, sludgedewatering, sludge treatment, river slope lining, structures revampingetc. The soft sludge clearance amounts to 1.783 million m3 while thehard takes 411,000 m3.

(3) Shuanglin WWTP: to build a WWTP in Shuanglin with a designedwater treatment daily capacity of 200,000tons for near term and300,000 tons for long term. It serves a coverage of 2,700 hecs, and apopulation of 426,000.

(4) Hangu Yingcheng WWTP in Tianjin Binhai New Area: with a designeddaily capacity of 150,000 tons for near term and 200,000 tons for longterm. It serves a coverage of 2,407 hecs.

(5) Treated Waster Water (TWW) recovery works. Three TWW recoveryfacilities will be built respectively in Dongjiao, Shuanglin and Beicangwith a designed daily recovery capacity of 25,00 tons in Dongjao,20,000 tons in Shuanglin, 20,000 tons in Beicang and a total 110km of

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pipelines.(6) Wuqing urban WWTP: to build a WWTP in Wuqing District with a

designed daily capacity of 50,000 tons.* Transportation improvement project: it contains 3 components:

(1) The mid-ring road improvement component: it includes 5 items ofconstruction, they are the construction of Jingzhongheinterchange,;and of a three-level interchange at the intersection ofHongxing Rd and Jinzhonghe Rd; transformation of Anshanxi Rdintersections; transformation of Weidi Rd and Fukang Rd which to bewidened for their powered driven vehicles; the construction ofDagunan Rd interchange - a three-level inter overpass; and theconstruction of two pedestrian bridges spanning over mid-ring road.

(2) The inner-ring Rd improvement component: the component covers 4items, being respectively the construction of a pedestrian bridge atDongbeijiao, the widening of Beima Rd, the renovation of Nanjing Rdwhich focused on readjustment of road sections, the revamping ofintersections at Xibeijiao, Xinanjao, Xinhua Rd, Hubei Rd, Liuwei Rdand Huachang St etc.

(3) The road network improvement: to build two public transport passagesat two selected lengths of road where public bus has the priority. Someparts will be widened, remolded and perfected.

The matters that need to be explained are: this sum-up of environmentalinfluence evaluation is only summarizing most of the sub-projects establishedearlier. While the individual environmental evaluation reports for thosecomponents such as Hangu Yingcheng WWTP in Tianjin Binhai New Area,Wuqing WWTP, TWW recovery, Dagunan interchange and road networlimprovement etc. could not be finished until May, 2002 because of their lateproject establishment time. Therefore, this evaluation only gives a generalintroduction of them, leaving specifics to summarized for report after thecompletion of individual evaluations. This sum-up only embraces theconstruction of drainage pipelines, the renovation of Dagu sewage canal,Shuanglin WWTP and the mid ring Rd transformation ( exclusive of Dagunaninterchange) and the inner ring Rd improvement contained in thetransportation improvement part.

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o g 8 _Xianfeng Sewage Canal Renovation

CD~~~~~~mC

0.~~~~~

m ii-. nD Revamping of stnuctures and

a) <a

2. M umDs alona the line_ (D

v i Shuanglin WWTPa)i < (incl. Sonaiiana Rd DumD stabon comDlete with Dioes)

Hangu Yingcheng WWTP in Tianjin Binhai New Area

0Wuqing Urban WWTP

Tianjin Dongjiao, Shuanglin, Beicang TMW recovery0.m

< _ A ~~~~~~~Jinzhonghe St. interchange0~~~~~

CD _ East Ring Transportafion Management andX o E 5 ~~~~~~~~~~~Pedestfian waysv|

o '3; Transformnation of Anshanxi Rd |0~~~~0C

(D ~0= z o A ~~~~~~~~Dagunan interchange|

0.~~rn _ 3 _ _ _ ~~~Renovation of Weidi Rd and Fukang Rd |

Ca < l Beima Rd Renovationr- R 0> 3 :- 5 (ind. Dongbeijiao pedestrian bridge)

Co _ i3 Najing Rd Renovation|CD ~~~~~CD

- 0. Intersections Renovation (Xibeijiao, Xinanjiao,_ FXinhua Rd, Hubei Rd, Liuwei Rd, Huachang St

LT Road Network Improvement Works: Public Bus Prority

fig. 1-2 World Bank Composition Project

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'I" LegendFig. 1-2 Second Tianjin Urban Development and .,e_ t Re

Environment Project Financed By WB Loans rItem Coriment NameNo. poetNm

Item 1 :eima Rd Expansion WksCompo--nt Name C ' 12 Nnijing Rd Renovation

No.m ComponentName 3- Xibeijiao intersetion revamppingI Map of China 4 Xinanjao interseion revamping

2 Map of rianjin 5 Izisbei Rd intersection revamsping

3 Transportation Improvement ~ ---- ~I6 XinhuaaRd intersectionWorks Sketchy Map I l L eapn

Daguo Sewage Canal Renovation IewLAJ c LeuwvitRd w nt r eWoksSktc MpHuachsaeg St intersection

w Drainage Works sketch m * SuangpingDrainagesys3__wrks_sketh_m____ Dongbeijiw pedestrian bridge

_________________________________________________________________ - . 1.0 W eidii RRd ee ppansion

1.1 Changzho Rd pedestrian bridge'e ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~12 Zhengyi Rd pedestian bridge

- 1~~~~3uJizlonghe St inteehangeWorks Range ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~14 Aashanxi Rd intersetion

A Works Range mv~~~~~~~~~~~~~~Lged tm omoen amein

Componnt Nam sewag treatent plnt Jtztcatngt swg aa envto ok

NabiagDang ok frtpae 2 Xafn eaecnlrnvto ok

3 Soath-of-Fuhang Rd Drainage Works 0~~~~~~~~~~~~~~"nd te Coagi ewg rampoent Nlant

1.2 The Purpose of the EvaluationThe purpose is for a full survey and analysis of the site selection and theenvironmental backdrop of surrounding sensitive objects for the componentscontained in the Second Tianjin Second Tianjin Urban Development andEnvironment Project Financed By WB Loans; and for an evaluation on theenvironment quality surrounding the sites; and with a view to the city's overallplanning and relative environmental protection individual plans, for an analysisof whether the candidate component sites are possessed of conditions for theproject construction and whether the components meet the requirements ofenvironment in general design; in the meantime, for the selection of anappropriate prediction model to compute the scope and extent of the influenceemitted by the main polluting factors of the project to the surroundingsparticularly to sensitive objects based on the amount and the method of thedischarge of the polluting factors and the pollutants of the component projectsintended to be built. The purpose of the evaluation is also for a verification ofwhether the environmental protection program and the correspondingdischarge parameters could meet the national standard, to work out a carefulpublic participation program and to make scientific assessment on the variousimpacts brought about by relocation of citizens, to conduct a comparison oftotal waste discharge of main pollutants prior and after the project as well asan analysis of total amount control, and on that basis to put forward a clearconclusion remark on whether the project is feasible or not, and to check thealternatives and, via prevention, pollution minimizing, alleviation or remedies ofbad environment impact as well as by boosting the favorable environmentinfluence, determine the project screening, site selection, planning andexecution of the improved program while produce the correspondingmanagement plan so to reduce at maximum the adverse environmentalinfluence from bad management.

1.3 Evaluation PrinciplesThis evaluation, apart from satisfying general principles and rules forenvironmental influence evaluation, should primarily meet the followingprinciples:

(1) The principle of sustainable development: The project is considered inTianjin a project of a big scale and a extensive coverage. So it mustbe based on the principle of a sustainable development, on the fullanalysis of different resources and especially on the rational usageof land resources. Taking this as main factor to demonstrate influenceof the project on construction on the sustainable development ofTianjin.

(2) Total amount control and double standards accomplishment principles.As the project relates to many aspects and covers broad fields and the

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project itself takes it as its ultimate goal to improve the urbanenvironmental quality, it must comply with the requirements of theState EPA, to come up with a scheme of rational total amount controland up-to-standard pollution control .

(3) Environment compensation principle: Apr t from the compensationsto be made in accordance with the State regulations during the landacquisition and the citizens' relocation, compensation should also bemade by way of balance of total amount of pollutant discharge and ofregional overall balance in eco greening aspect.

(4) Fair and truth principle: The environmental influence evaluationshould go by a high sense of responsibility and a high professionalethics, to keep a neutral and objective attitude in the job. It not onlyshould meet the relevant state and local laws and rules, but alsoshould reach requirements of relevant WB documents. Therefore, thereport will focus on the macro environment problems of the projectconstruction to the region and the river valley especially to the Haihevalley and Bohai offshore coastal areas; and make good the contentdeficiencies of the individual component environmental evaluationswhile giving full regard to their preventive measures and evaluationconclusions, methodically, it will employ more diagrams and graphs toexpress and illustrate the content and features of the individualenvironmental evaluations.

1.4 Approaches to the report1.4.1 Environmental laws, rules and regulations"Environmental Law of the People's Republic of China""Air Pollution Preventive Law of the People's Republic of China""Water Pollution Prevention Law of the People's Republic of China""Noise Pollution Prevention Law of the People's Republic of China""Solid Hazardous Waste Pollution Law of the People's Republic of China""Ocean Environment Protection Law of the People's Republic of China""Water and Soil Conservancy Law of the People's Republic of China"The Written Reply of the State Council about Bohai Sea Blue WaterRestoration Program, State File 2001, No. 124The Notice on the Approval by the State Council of Haihe Valley WaterPollution Preventive Plan, State File, No. 1999, 21"Administrative Rules on Prevention of Polluting Damage of OceanEnvironment by the Coastal Engineering Project" of the People's Republic ofChinaState Council No. 253 Decree " Construction Projects' EnvironmentalProtection Administrative Rules""Opinions on Environmental Protection Management of Construction Projects",88, Envir. Contruc. No. 117

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Notice on Strengthening the Administration of Evaluation of EnvironmentalInfluence of the Construction Projects Financed by International FinanceOrganizations', Envir. Monitor 1993, No. 324World Bank Operational Policy OP4.011990, Minister No. 17 Decree of Ministry of Communication "Transportation

ojects Environmental Protection Administration Rules"2000 Tianjin Municipal Government No. 28 Decree "Tianjin Constructionprojects Environmental Protection Administrative Rules"Tianjin Municipal Government Jin-Gov-lssue 2000, 83 Notice "on Blue AirProject Engineering Execution Draft"Tianjin Overall City Planning'Tianjin Basic Farmland Protection Administrative Rules""Tianjin Basic Vegetable Land Protection Administrative Rules"Tianjin Municipal Government 1994, No. 25 Decree "Tianjin Water PollutionPrevention Regulations"Jin-Gov-lssue 2001, No. 93 "Tianjin Municipal Government Notice on Ban ofSale and Use of Phosphorous Containing DetergentTianjin Municipal Government, Jin-Gov-lssue 2000, No. 60 "Jinhe RiverCourse Administrative Rules"

1.4.2.Tianjin Municipal Government, Jin-Gov-lssue 2002, No. 9 "Notice on ApprovalReply to Municipal EPA about Implementation of Blue Sky Project"Municipal EPA Jin-Envir. Bao-Gu 2001, No. 350 Document "On RezoningScheme of Adaptation of Standard for Noise in Tianjin City Districts"Tianjin Municipal Environmental Protection 10t 5-year Plan Period and 2015Long Term PlanHaihe Valley's Tianjin Water Pollution Preventive PlanBohai Sea's Tianjin Blue Water Action Plan

1.4.3. Engineering Design Material"Second WB Financed Tianjin Urban Development and Environment -Transportation Improvement Project Environmental Impact Report".'Dagu Sewage Canal Renovation Project Environmental Impact Report""Shuanglin WWTP Project Environmental Impact Report""Urban Development and Environment - Drainage Component: Nanbeicang(first phase), South-of-Fukang Rd, Nanjiaowai Water Drainage ProjectEnvironmental Impact Report".

1.4.4. Relevant Technical Base Documents for the Report(1) State EPA HJ/T2.1 - 2.3 - 93 "Environmental Impact Evaluating

Technical Guidelines"(2) State EPA HJ/T2.4 - 1995 "Environmental Impact Evaluating

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Technical Guidelines - Sound Environment".(3) JIJ005 - 96 "Road Construction Project Environmental Impact Report

Technical Regulations (trial)"(4) State EPA HJ/T19-1997 "Environmental Impact Evaluating Technical

Guidelines - Non Pollution Eco Impact".

1.4.5. Task Trust DocumentTianjin Urban Facility Engineering Bureau Entrustment Letter On theAppointment of Tianjin Environmental Protection Science Research Institute toConduct Environment Evaluation

1.5. Evaluation ClassificationAccording to environment evaluation principles, this project environmentevaluation is Clas.s A.With reference to the basic principles of classification of EnvironmentalImpact Evaluation Work contained in "Environmental Impact EvaluatingTechnical Guidelines", the classification of environmental element evaluationwork for the components are determined as following fig. 1-1:

Fig. 1-1 Environmental Element Evaluation Work Classification TableEvaluation Factor

Component Name Atmosphere Ground Noise EcoAtmosphere WaterEc

Drai. System Class 3 Class 3 Class 3Renova. ____ _____ ___ __.

Urban Dagu Class 3 Class 2 Class 3 Class 2drainage Renovation __ _ _ _ _ _ _ _ _ _ _ _ ___ _ _ _ _ _

ShuangLin Class 3 Class 3W W TP__ _ _ _ _ _ _ _ _ _

Transportation Class 3 Class 2 Class 3Im provem ent_ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _

1.6. Scope of EvaluationThe scope of evaluation of the engineering environmental impact forcomponent covered in this evaluation is seen in fig. 1-2

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Fig1-2 . scope of evaluation for the componentsComponent Construction Monographic Evaluaton During Operation

Name Period Atmosphere Surface water Noise Eco or HardWaste

"~the scope of stinking smell evaluationa) E * ) impact is a square area of thnpe rcp is

E --0 .,~5Gm lng ech sd section of centered on'j0' _ 0m log ech sd Haihe river the pump> rf C ° centered on the pump and Haihe river the pm

Cflco taking the leading windseodlucstin -a

a- direction as the main axis 500m radius

c 1.Dagu sewage canal: from the confluent point between Xianyang Rd and Miyun Rd pumpc c station to the Dongdagu pump station outlet to sea, 67.47km long (the section between

c Xiangyang Rd and the confluent point between Xiangyang and Miyun had been transformedo into square culvert),

-9 3 2.Jizhuangzi sewage canal: from Jizhuangzi WWTP to Xiqing district's No.4 pump house -5 3.68Km long.

X~ o 3.Xianfeng sewage canal: from Shuanglin pump station to Jugezhuang pump station - 12.5kmn long.

The above 3 canals total 83.64km long and con eming 500m along each bank of the line

the scope of stinking smell Xianfeng Solid waste toCt (H2S, NH3) impact isa ianfn be evaluated

c X C) Z) square area of 4km long each sewage canal 1m outside to the end ofXE LOEE '3side centered on the pump water the sludge

c o ° 2 E aE and taking the leading wind cecin oundary treatment_ direction as the main axis segment course

The areasa) X possiblyo co 200m off each side of the 120m off each covered by

0 C° E a) center line of the urban road side of the the8 0o within the renovated center line of engineering

0 segment, for interchange the the urban road scope andu E scope is a 1.5km X 1.5km within the possibly

(D @rectangle of 6km renovated involved byo 4 0 6circumference segment the

E E al constrictionII_ I l operation

1.7. The Criteria of Evaluation adopted in this project1.7.1: Atmospheric environment"Foul smell pollutant discharge standard' (DB12/-059-95) class 2 for new one,

extension and transformation;"Environmental air quality standard" GB3096-1996 class 2;"Hygiene Standard for industrial enterprise design" TJ36-79 residential area;"Boiler air pollutant discharge standard" Jin/DHJB1- 1999Specific limit values are seen in fig. 1-3

1-10

Fig. 1-3 Air Evaluation StandardConcentrabon limit

Item No Polluffng factor category mg, rn3 standard

hour Daily aver.1 TSP environment2 S02 environment 0.50 GB3095 - 19963 NO2 environment 0.244 CO environment 10.0

5 Foul smell Dischargeconcentration environment DB 12/-059/95

6 NH3 Discharge 1.0 (within6 NH3 Dshre bounds0)

environment TJ36 -79

discharge 0.03 (within DB12/-059/957 1-2S bounds)

environment TJ367

1.7.2. Water Quality Evaluation Creteria"Standard of water discharged into urban sewage system" GJ18 - 86"Surface waterenvironment quality standard" GHZB 1-1 999 classV"Waster water comprehensive discharge standard" GB8978 - 1996 class 2"Farmland irrigation water quality standard" GB5084 - 92For specific values of limit see fig. 1-4

Fig.1-4 Water Environment Evaluation Standard, mg/l(except for PH)

Item ~~~~~~~~~~GB8978-1 996 Class2 GZI19No. pollutant GJ1B-86 GB5084-92 Scope of limit Class99

_____ _____ ____ adaptation

1 PH 6-9 5. 5-8. 5 All polluting 6-9 6-9units200dryfamin),Urban and

2 SS 400 200(dry faring), town class 30100vegtabe) 2 VVWTP

300dryfamin),Urban and3 CODcr 500 300(dry faming), town class 120 40

I 5(veetale) 2 WVVTP1500(dry Urban and

4 BODs 300 farming), town class 30 1080(vegetable 2 VVWTP

5 Ammonia 30(Casp. 3(Casp.Nitrogen Nitrogen) Other units 25 Nitrogen)

6 Phosphate 10 total units computed phosphate)units phosphate

1.7.3. Noise Evaluation Creteria(1) Regional environmental noise control standard goes by GB3096 - 93

"Urban District Environmental Noise Control Standard", to be set forth asfollowing fig. 1-5

fig. 1-5 Urban District Environmental Noise Control Standard (excerpt)Standard value( L-aeq dB)

Category\ Day time Night time

Class one area 55 45Class two area 60 50

Class three area 65 55Class four area 70 55

Note: Class one area standard is for areas where most are residence and cultural andeducational institutions, the standard may be referred to in rural residential environment;class 2 area standard is for areas where residence, commerce, manufacturers are mixedup and for CBD as well; class 3 area standard is for industrial zones; class 4 areastandard is for both sides of traffic trunk lines.

(2) Industrial enterprise in-bound noise control standard goes by "Industrialenterprise in-bound noise control standard" GB12348-90, their values areseen in fig. 1-6.

Fig. 1-6 Industrial Enterprise In-bound Noise Control Standard (excerpt)Standard value( L-aeq dB)

Category Day time Night time

Class one area 55 45Class two area 60 50

Class three area 65 55Class four area 70 55

Note: Zoning is same as (1)

(3) Construction in-site goes by GB12523 - 90 "Construction In-site NoiseControl Limit", GB12524-90 ""Construction In-site Noise .MeasurementMethod".

Fig. 1-7 Construction In-site Noise Limit unit: Laeg dBConstruction Main noise source Noise limit

phase Day time Night time

Earth and stone Bulldozer, dredger, loader, 75 75

Piling Piling engines 85 OperationbannedStructure Concrete mixer, vibrator, electric 70 55saw

decoration Crane, hoister 65 55

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1.7.4. Farmland Soil Environment Quality StandardFarmland Soil Environment Quality Standard goes by Class 2 Standard in the'Farmland Soil Environment Quality Standard' (GB15618-1995), while theunspecified TN, TP and organics wherein may go by the correspondingcontent value of the soil of North China Plain. For concrete limits see figs. 1-8and 1-9.

Fig. 1-8 Soil Environmental Quali Standard Hea Metal Limit m g/kgItem Hg As Cr Pb Cd Ni Zn

PH>.7.5 1.0 20 250 350 0.6 60 300Standard class2 _ .o 20 250 30 .6 0 30

Value PH>6.5 1.5 30 300 500 1.0 200 500class 3

Fig. 1-9 content value of the soil of North China Plain for TN, TP and organicmg/kg

item TP(ppm) TN (ppm) Organic (%)

Content scope Fertile soil Ordinary soil Fertile soil Ordinary soilvalue 440-1,000 800-1100 350-650 1.1 - 11.5 1.5- 1.0

1.7.5. Sludge Environmental Quality StandardSludge Environmental Quality Standard goes by "Farming Purposed SludgePollutant Control Standard" (GB4284-84), the unspecified TN, TP and organicswherein may go by the corresponding content value of the soil of North ChinaPlain. For concrete limits see figs. 1-9. The forecast analysis of sludge EPtoxicity adopts "Hazardous Solid Waste Differentiation Standard - LeachingToxicity Differentiation' (GB5085.3-1996), For concrete limits see fig. 1-10.

Fig. 1-10 Farming Purposed Sludge Pollutant Control Standard,, mg/kg DryItem Hg As Cr Pb Cd Ni Zn

PH<6.5 5 75 600 300 5 100 500PH>=6.515 15 75 1000 1000 20 200 1000

fig. 1-11 Sludge Leaching Toxicity Evaluation Standard mg/1| Item Hg As Cr Pb Cd6+ Ni zn| Standard 0.05 1.5 10 3 0.3 10 Zn

1.8. Evaluation Time IntervalsEvaluation Time Intervals are construction period and operational period withthe latter intended to aim at the urban development, thus its planned time limitare respectively up to 2010, and 2020.

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2. Construction Areas Environmental Survey2.1.1. Geographical LocationAs one of the four province municipalities of China, Tianjin is the hub of seaand land transportation as well as the gateway to the Capital. Tianjin is locatedat the east of North China Plain, the lower reaches of Haihe River Valley, withits north against Yan Mountains and its east opening toward Bohai Sea. Itscoordinate is between 380 57' and 40014' of north latitude, between11°64'205" and 118°03'31 " of east longitude, with width of 101km from east towest and length of 186km from south to north. The total area covers11,919.7km2 and its coast line extends to 153.3km.

2.1.2. TopographyThe topography of Tianjin is a gradual downturn from northwest to southeast.The north of Beijing - Shenyang highway is characterized by low hilly land of400 - 500 m above sea accounting for 5% of the Tianjin Area, while its southruns a vast alluvial plain of normal 3 - 5m above sea. Except some exposedparts of bedrock in the mountainous north of Jixian County, most of the area iscovered with a very thick Cenozoic alluvial plain.Haihe River flows through the city district, what with the comparatively lowaltitude and the high underground water table of the banks, the soil is seriouslysalinized.

2.1.3. ClimateTianjin features a warm temperate zone of continental monsoon weather, semihumid; and has clear-cut four seasons and evident monsoon wind. The manyyears averaged yearly temperature of Tianjin is 12.5 0c, average yearly rainfallis 559mm, and the relative humidity is 61%, the average wind speed for thecentral city is 2.7m/s while in the coastal area the figure is 4.5 m/s, the averagenumber of sunshine hours is 2,613 hrs. See fig. 2-1 and 2-2 and Graph 2-1 fordetails.

fig. 2-1 Tiani City Districts Avera e Wind Speed FrequencyWd direction N NNE NE NEN E ESE SE SSE

Parameter _ _ __ _ _ _ _ _ _

Wind speed 3.6 3.0 2.7 3.7 3.8 3.6 2.3 2.1

Frequency 6 4 3 4 4 6 4 6

id direciion~ S SSW SW WSW W WNW NW NNW

Wind speed 2.3 2.9 3.0 3.2 2.8 3.6 4.3 6rn /s _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

Frequency 8 11 8 5 3 5 5 10

2-1

fig. 2-2 Tian in Area Stability De rees' Fre uency

Degree A B C D E FParameterFrequency% 7.8 2.0 16.9 56.7 4.6 12.0

Fig. 2-1 Tianjin Area wind Speed, Wind Frequency Rose-Map

N

* NW % ; NEN

-4 -wind speedI

-U-- FrequencyW E

WSW i/SEESE

S

Thanks to abnormal climatic changes in the expression of higher temperature,very uneven rainfall in time and space, the bigger humidity and smaller windon the part of Tianjin in recent years, Tianjin experienced in 2000 a continuouswarmer tendency with the average temperature of city districts reaching 1 3.90c,1.60c higher than previous years' average. In 2000, the rainfall for differentplaces of Tianjin ranges from 253 - 607mm - striking an average of 448mm forthe whole city with the central city receiving 418mm among which most fell inJuly and August - 111.8mm and 98.4mm, and least fell in Jan and Feb - Omm.The yearly average relative humidity of the city districts in 2000 is 61%, theaverage wind speed is 2.1m/s, smaller by 0.6m/s than previous years. Theaverage sunshine hours of the city districts in 2000 are 2,079.8 hrs/year.

2-2

2.1.4. Geological Structure cTianjin area is located at northeast part of North China Plain subduction zone,there exists a hugely thick Cenozoic erathem 4' and 3d loose alluvial stratumupon the Paleozoic and Proterozoic floor. Tianjin is situated at the conjunctionpoint between the latitudinal and neo-cathaysian structural systems and has avery complicated base floor structure and is subject to frequent earthquakesending in cutting the subsidence zone into a sub-grade 1 swelling and caving.

2.1.5. Hydrogeology and River System2.1.5.1 Ground river systemTianjin's ground river system belongs to Haihe River Valley - at its lowerreaches. The whole Haihe River Valley coverage is 318,752km2 with thesegment of Tianjin accounting for 3.55%. During the 9' 5-year plan period, theState government unfolded a "Three Rivers and Three Lakes Control Project",one of them is the water pollution preventive task in Haihe River Valley. Someworks incorporated in the Project have been listed into the Tianjin Haihe RiverValley Water Pollution Preventive and Control Plan. There are 19 class-1 rivercourses and 79 class-2 river courses in whole city, most of the former aredispersed respectively in the six river systems of Haihe River Valley with sometrunk line rivers course through Tianjin into sea (see fig. 2-2). The six areintroduced briefly as follows:

(1) The North 3-River System (N3RS)N3RS includes Zhou River, Ju River, Huanxian River, Jiyun River, ChaobaiRiver, Diversion from Yinju to Chaobai, Beiyun River, Qinglongwanjian Riveretc. accounting for an area of 6,227km2.Jiyun River, 189km long, is one of the rivers of N3RS that has a outlet of itsown to sea, flowing across Baodi, Ninghe, Hangu and Tanggu where it runsinto sea at the Jiyun River anti-flood gate of Beitangkou. The Tianjin HanguYingcheng WWTP under this loan project is to discharge the TWW into theRiver for farming purpose so to change the present situation where theuntreated waster water are being flown directly from the tank into YongdingxinRiver then further to sea.Chaobai River flows across Shunyi County of Beijing, Xinaghe County ofHebei Province, and via Zhangja village of Baodi County into Tianjin, and thentakes 81km of its course within Tianjin and enters Yongdingxin River at theYuningchegu gate of Ninghe County.Beiyun River is itself part of Beijing - Hangzhou Big Canal, running 67.4kmthrough Tianjin (crossing Wuqing, Beichen and Hongqiao -three districts). TheNanbeicang Drainage Pipeline Networks under this loan project is to changethe present situation where rain and waster water are flowing directly intoBeiyun River so to get the River purified to a certain extent.

2-3

_ * 4 z e 788!4_* y

Fig. 2-2 State Monitored Water Quality Classification in 2000 forTianjin Segment of Haihi River Valley.

2-4

Qinglongwanjian River is designated as the flood releasing route for BeiyunRiver, it starts from Pangjiawan, and finishes at Daliupuo, totaling 45.7km.

(2) Yongding River SystemYongding River System includes Yongding River and Yongdingxin River etc.covering 327km2 of a geographical area of Tianjin.Yongding River flows into Tianjin at Luofa gate of Wuqing district and convergewith Beiyun River at Qujiadian of Beichen district finishing its course of 29km inTianjin across Wuqing district and Beichen district.In order to alleviate the pressure of a flood on Beijing and Tianjin, a direct-to-sea canal was dug in 1971 from Qujiadian to Beitangkou of Tangu districtcalled Yongdingxin River, it is the only sea entrance river in Tianjin that hasnow anti-tidal gate. It collects the water or waste water from Yongding River,Airport sewage river, Chaobaixin River, Jingzhong River, Jiyun River, Beicangpump station, Bitang sewage river, Heizhu River, Bipai open channel, Beitangdrainage river and the waste water reservoir of Hangu and discharges into sea,totaling 62km long within Tianjin.

(3) Daqinghe River SystemDaqinghe River System includes Daqinghe River, Duliujian River, Ziya Riverand Ziyaxin River etc. and commands a geographical coverage of 2,637km2

within Tianjin

(4) Zhang-Wei-Nanyun River SystemZhang-Wei-Nanyun River System includes Nanyun River and MachangjianRiver, it is river course sandwiched by two dykes to be all incorporated in theDaqing River System's Tianjin segment with only 8km2 of geographical area.

(5) Heilonggang River and Yundong Region SystemHeilonggang River and Yundong Region System claims no water courseswithin Tianjn, it owns Beipaishui River, Canglang Channel with 40km2 of ageographical area.

(6) Haihi River Master Stream SystemWithin the 9 water systems of Haihi River Valley, only Haihe River MasterStream System is all located in Tianjin. The main river of the system is Haihewith 2,066km2 of a geographical area.The Haihe artery courses from Sanchakou of the city of Tianjin to Bohai Sea atTanggu anti-flood gate, totaling 72km from east to west. The upper reaches ofit run through Tianjin's downtown, and the river course is shaped narrow in theupper and wider in the narrow reaches. In 1985, a second gate was built in themiddle reaches to ensure the conserving of water up from the gate and

2-5

navigation down from the gate. The up-gate section is 32km and the down-gate section 40km. In normal years, the total runoff of a yea is only about 92.36million M3 for the upper reaches, it has become a river reservoir as analternative source to provide water. The upper reaches stands by Class IV"Surface Water Environment Quality Standard" GHZB1-1999, while the lowerreaches stands by ClassV" Surface Water Environment Quality Standard"GHZB1-1 999".The two main sewage rivers - Beitang canal and Dagu canal are also countedin the Water System.The Dagu sewage canal renovation, construction of Shuanglin WWTP and ofNanjiaowai drainage pipeline network under this loan project are intended tochange the present situation where the rainfall and waster water fromNanjiaowai drainage zone are being discharged to Haihe River; in themeantime to lessen the pollution absorption burden of Dagu sewage canal.In addition, there are more than 70 reservoirs spreading over Tianjin amongthem are big ones like Yuqiao Reservoir, Beidagang Reservoir, ErwangzhuangReservoir and Tuanbowa Reservoir etc.; mid size reservoirs like BeitangReservoir, Huangqiao No. 1 and 2 Reservoirs, Yingcheng Reservoir, QianjuanReservoir and Shajingzi Reservoir etc..For Tianjin's plains are most of alluvial and marine deposition types, thevicissitudes of ancient coasts had left a number of coastal lagoons and marshland etc. like Beidagang, Dahuangpu Marsh, Huangzhuang Marsh, Guangangand Qili Sea etc..

2.1.5.2. Hydro GeologyIn this region, the underground water above the depth of 150m is salty waterwhile the different water groups below the depth of 150m are all fresh waterwhich have been utilized in the industrial and agricultural production and in thepeople' daily lives. The phreatic water table is always changing between 1 -2 m, the water is characterized as Cl - Na type, mineralization being 3-5g/L,and is salty water.At depth 0-3.Om is yellowish grey clay, its natural vertical osmotic coefficientis between 104 - 10-7cm/sec, the foundation soil allowable bearing capacity is17T/m2. At depth 3 - 5.6m is brownish grey lam mixed with light-lam, its naturalvertical osmotic coefficient is 1064 - 10-7 cm/sec, allowable bearing capacity is19T/m2. At depth 5.6 - 12.Om is darkish grey sludge like light lam, verticalosmotic coefficient is 1 09cm/sec, allowable bearing capacity is 8 - 1 OT/M2.

2.2. Social Environment2.2.1. Administrative Division and Population

Tianjin Municipality is divided into city zone, Binhai zone, new 4-district and

2-6

districts and counties under the municipal jurisdiction. Municipal total area is11,919.7km2. The city zone comprises 6 districts (Heping District, Hexi District,Hedong District, Hebei District, Nankai District and Hongqiao District) of total239km2; the Binhai zone consists of 3 districts (Tanggu District, Hangu Districtand Dagang District) of total 2,256.78km2; the new 4-district (Beichen District,Dongli District, Jinnan District and Xiqing District) of 1,910.17km2, and thedistricts and counties under the municipal jurisdiction (Wuqing District, BaodiDistrict, Jinghai County, Ninghe County and Jixi County) of 7,584.99km2.By the end of 2000, the municipal permanent population posts as 10.0114million, while the registered permanent residents number as 9.12 million,among the latter 3.7418 million of 1.2849 households belong to the centraldistricts. The natural population growth is 1.55%o. The striking feature of themunicipal population distribution is the high density of the central districts -with 2.01% of the total area accounting for 41% of the total population. Thedensity comes to 22,305/km2 resulting in very uneven distribution ofpopulation.

2.2.2. Economic ProfileAs the biggest coastal opening city of North China, Tianjin is the economiccenter of Bohai Rim Region. In 2000, the total GDP of Tianjin reached 163.94billion RMB, an average of 17,940 RMB per capita. Enjoying the birthplace ofChinese modern industries, Tianjin boasts of industrial comprehensivenessand a synthetical manufacturing supportive strength. In 2000, the number ofindustrial enterprises of over 5 million RMB yearly sale volume is 5,430 whoseoutput aggregates 260.038 billion RMB. A batch of emerging industries andproducts such as mini cars, color TV, Motorcycles, Refrigerator compressors,elevators, large size seamless steel pipes, ethylene, electronic &communication equipment etc are taking into sizable shape. Tianjin High andNew Tech industries are undergoing rapid development having accounted for24.2% of industrial output total. The HNT products are mainly concentrated inthe fields of electronics and IT, besides new materials, biotechnology,pharmacy and new energy etc..Tianjin is a historically -long business place with comparatively developedcommerce, catering and service business. There are about 40 plus shoppingcenters of over 10,000m2. In 2000, the total social consumer goodsexpenditure volume chalked up 73.63 billion RMB.At present, there have been foreign investments in Tianjin from 110 pluscountries of Europe, America, Asia and Australia etc.. with the actual usedvolume aggregating 31.346 billion USD.Along the economic development, the living standard of urban and rural peopleare steadily improving. In 2000, the per capita disposable income of urbanresidents realized 8,14IRMB - a 6.8% increase over the previous year afterdeduction of pricing factor. The average per capita consuming expenditure

2-7

was 6,121 RMB, - a rise of 5% and the per capita housing area was 13.9 i 2.

2.2.3. Urban Infrastructure ConstructionRecent years, in parallel to the continuous development of national economy,Tianjin has stepped up its investment momentum i the infrastructure facilities.Three ring roads were built in the central city together with 14 radial linesforming skeleton of a urban road networks. By the end of 9t 5-year plan period,Tianjin urban public utilities' construction have spent 30.96 billion RMBaccumulatively. By the end of 2000, the city (incl. outlying districts and counties)have paved 3,607km of road covering 4,161km2; and owned 31,940 taxis, 338routes operated by public buses and trolley buses with a total length of7,714km and 5.30 million rider-times. The city's drainage capacity is827m3/sec powered by 315 pump stations and conveyed by 7,032km ofdrainage line. There are 3 large WVVWTPs with a treating capacity of 850,00 tonsper day. The strong buildup of municipal public utilities construction hasremarkably enhanced the general functioning of the city and enhanced thequality of the life of the citizens.Tianjin's educational and cultural causes are also comparatively developed. In2000, there are 3,350 schools of different levels accommodating 1.6222 millionstudents, among them are 21 institutions of higher learning with 117,700students, 690 ordinary middle schools enrolling 570,600 students. Theenrollment rate for children of school age is 999.99%. The city are possessedof 549,800 professionals and technicians, and there are on average 549science and tech persons in every 10,000 people, 2,726 science and techpersons in every 10,000 workers. There are 45 public libraries and museums,9 TV stations.

2.3. Environmental Quality Status2.3.1. Environmental Air QualityRetrospecting to the changes of air environmental quality since 1980s, despitethe fact that the municipal energy consumption total has doubled, after 20years of persistent effort the TSP has gone down by over 50%, SO2 down byover 2/3 and NO, down close to the standard. For a full illustrations see fig. 2-3 and 2-5.Fig. 2-3 shows that between 1981 - 1997, the air TSP was going downgenerally. The TSP of 1983 was 0.7mg/m 3 - a record high in recent years;afterwards, it began to climb down with the years of our efforts to dust andabate the smoke. In 1991, it reached the best level of 0.249mg/m3, althoughstill short of the class 2 standard of 0.2mg/m3. After 1992, what with the fasteconomic development especially with the renovation of the old city spots andreal estate development, TSP tended to rebound.

2-8

Fig. 2-3 The Yearly Average TSP Value in the Airof City Center of Tianjin for the Past Years 0 NQ Rv n.

Q1 800

On 700

0. 600.

0 50.00. 400

(1.20010. 100

.00001980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 P .

Fig. 2-4 The Yearly Average SO2 Value in the Airof City Center of Tianjin for the Past Years

0. 250

0. 200

0. 150

g 0.100

0. 050

O. 000

o _ t~3 A. 01 s e 00 ID 0 o _ cw v n cn 0s

Fig. 2-5 The Yearly Average NO, Value in the Airof City Center of Tianjin for the Past Years

0. 0900. 0800. 0700. 0600. 050

E 0. 0400. 0300. 0200. 0100. 000 Ira

1980 1981 1982 1983 1984 1985 1986 1987 1998 1989 1990 1991 1992 1993 1994 1995 1996 1997

2-9

Fig. 2-4 tells changes of yearly average SQ2 from 1981 to 1997 indicating thatalthough it had never reached class 2 standard of 0.06mg/m, it certainly wasassuming a downturn.

Fig. 2-5 tells changes of yearly average NO. from 1981 to 1997 indicating thatits concentration is dwindling year by year getting or closing to theenvironmental air quality class 2 standard.During the 91 5-year plan period (1 996-2000), the air quality were generally ina stable state with fluctuations, however, it is beginning to proliferate from citydistricts to coastal zones and rural regions with central city worse than otherplaces (see fig.2-6). Between 1996 - 2000, the air quality of central city andthe new 4-district was found at warning level. Since 1997, the air quality of alldistricts tended to hold on, while Binhai coastal zone's air quality was kept atmid or mid-minus level, and the outlying districts and counties remained atmid-level.

It is more and more evident that the air pollution agrees much with naturalfactors like seasons and climatic changes etc.. In winter, the air pollution tendsto be worse affected by coal heating, and special weather phenomenon likefoggy days, zero wind days etc.; Spring and Autumn are dry with little rain, insummer time the air quality could make the best. The main characteristics ofthe air pollution remain to be the coal dust pollution, resulting in the remarkableworse pollution in the heating period than non-heating period, main po1lutantsare still dust particles and SO2From 1996 to 2000, every year's TSP had been short of state class 2 standard,a little aggravated than the 8' 5-year plan period, particularly striking is thedeterioration of TSP pollution in Binhai coastal zone and the city center. TheSO2 pollution in the city center is higher than other places, more serious duringwinter heating period when SO2 average value are 4-6 folds of non-heatingperiod.

However, generally speaking the SQ2 pollution is in a downturn, the averagevalue of 9' 5-year plan period was reduced by 54.2% against -the 8 ] 5-yearplan period, in 2000, for the first time the average monthly SO2 value wasbetter than the state class 2 standard, making a record best level in history.

2-10

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2.3.2. Exhaust Gas of VehiclesWith the fast and continuous development of national economy and the furtherimprovement of Tianjin's trunk road network, the number of vehicles hasgained steady increase to be 405,000 (excl motorcycles) by the end of 2000.During the 9 ' 5-year plan period, through the monitoring of exhaust gasdischarge of vehicles, the sampling pass rate was between 66 - 70%. Themain pollutant in the gas is CO, total hydrocarbon, NO2 etc. but recent years'monitoring indicates that CO is principal pollutant.

2.3.3. Regional Environmental Noise StatusTianjin's sound environmental quality have been changing for the better amidfluctuations with the main sound level indexes under control. However, somelong standing noise pollution still remains to be solved in an effective way.Tianjin noise function zoning is seen in fig. 2-7.

1. The road traffic noise pollution has been under some control. From 1990to 2000, Tianjin's traffic noise did not experience any tangible changetendency, but basically remained at a stabilizing fluctuation state. In late9' 5-year plan period, the average sound level was dropping to beneath70 dB (A) - record best. Given the annual increase of traffic volume andthe many years maintenance of this traffic noise level, it indicates thatthe traffic noise has been under relative control. However, Tianjin is stilllagging far behind compared with the other large and medium sizedcities in the whole country.

2. Later in the 9 5-year, the sound environment quality of the urban area'senvironmental noise reached its best of 10 years. Since 1993, the urbansound environment quality has been for 7 years on end better than thelimit value of 60 dB (A) of qualitative assessment for cities. For urbannoise pollution status in 2000 please see fig. 2-8. The noise originated insocial life and traffics has always been the biggest source of noise. Littlehas been changed for the better compared with the 8h 5-year period.

3. With the economic development and the changes of way of life of thepeople, noise pollution's extension into night time is a clearer and clearertendency. Compared with 8h 5-year, areas specified for adoption of class1 sound level are still found inflicted upon with over standard noise atnight while in the class 4 sound level adoption areas (on both sides oftrunk transport lines) and the CBDs, the night noise situation is a bitdeteriorating.

2-12

- . - .. \ Fig, 2-7 "tiarjin Urbn (wtin outer rng; . \ nnma4S tloise Control Zoning Map

\.- ;~~~~~~~~~~~~~~~~~~~~~~~~~~-

: ', \ w ool 9

%, .W . ,7~~e~~~~~~~~~~~~~~~~~~~.A t* .

:~~ ~ ~~~~~~~~~~~~~~~~~~ -a*

- " I\ . N

", ' , \ . ^ t . ^.~~~~~~~~-4st4 i _ s S$e:f t f~~~~~~~~~~~~

I~~~\'_' *J

6s. "¾

:' f '; ' ' it~:t

r , st,

2 13 ~ ~z

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A,~~~~~~~~UX '! \ %\ . V', _r

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9jA __ ~~___ _ __ -_, _ _'_ I

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Fig.2-8 Regional Environmental Noise Pollution Status, 2000

2-14

* 66 - MS' rA)

\ j X X - *~~~~~~~~~~~ 76 -80dB (A)

Fi.2'" "a'rafc\osePllto Statu,20

'" ' " '" r n '\" 2-15 / ' " ' '

2.3.4. Water Environment StatusAccording to the aggregation of Tianjin Main Rivers' Statistics in the "TianjinEnvironment Quality Report (1999 - 2000)", all present water quality is aboveclass V "Surface Water Environment Quality Standard" GBZB1 - 1999.The statistics of levels of main pollutions are seen as the following fig. 2-3

Fig. 2-3 Statistics of Levels of Pollutions of Main Rivers of TianjinItem of Average of 5 Categorized Sequence of Pollution rating

statistics years index pollution level Pollution_ratingJu River Medium

Yinjuruchao MediumJiyun Heavy

Chaobeixin HeavyBeiyun Heavy

Huanxiang HeavyYongding __________=__ Heavy

Ziya MediumNanyun _ X_X___Medium

Duliujian ___ _X_Very heavyDaqing __X_ __Heavy

Machangjian MediumQinglongwan _ Heavy

Yongdingxin HeavyBeijing Sewage Medium

Rv__ _ _ _ _

Jinzhong HeavyHongni MediumWuhe Medium

The water environmental quality is generally taking a deteriorating trend. Thepast 10 years have seen Tianjin area hard hit by high temperature and smallrainfall resulting in continuous drought while the water received from outsidehas been both of small quantity and of poor quality. Yet it is still collectingwaste water form daily life and industries which has led to the worsefunctioning of river courses and to the increasing pollution of rivers' waterquality which are class V and V-minus. The worsening of foreign waterquality has become one of the main environmental problems confrontingTianjin Regional water.Up to year 2000, the water quality of state monitored sections in the Tianjinsegment of Haihi River Valley have been all exacerbated, of which theentrance section water quality all class V - minus water bodies. Portable water

2-16

quality is still well maintained. The water diverted from Luanhe River has beenbasically well maintained as the only portable water for Tianjin. However, manyyears' drought starting from late 9121 5 - year has sharply reduced the amount ofwater received and the quality is making for downturn tendency.During the 9m 5-year, the water quality of Haihe River Main Stream has not asa whole turned for the better, all along the water features salty and polluted,the upper reaches remains class IV - V while the lower reaches is often foundto be V-minus. The lessened upper coming water amount, discharge ofrainfall and waster water during rainy season, the leakage of pollutant at thegates to the main stream and the release of pollutants from the river bedsludge are all behind the worsening of the Haihe River water. After 2000 whenthe project of diverting water form Yellow River into Tianjin was implemented,Haihe again became the delivery course of portable water, this has made themission of protecting the water quality of Haihe River become more arduous.The agricultural eco problems brought about by the shortage of waterresources and water pollution are increasingly serious, Tianjin is short offarming water so the there has been a 40-year history of waste water irrigation,in some places, waste mud are still being applied, this inter river system wasterwater diversion for purpose of irrigation has intensified the interaction ofpollutions of rivers, and in the meantime, causing the increasing damage effecton agri-eco systems like surface water, ground water, soil and crops etc.The quantity of the discharge of waste water and main pollutants: In 2000, thetotal discharge of waster water from the whole city is 600 million tons, amidthem, 368 million is from industries, and 232 million from daily life. In 2000, thetreatment rate of industrial waste water is 100%, up-to-standard discharge rateis 98%. The municipal COD release is 186,200 tons, of which 72,600 tons arefrom industries. Other main pollutants' release from industrial waster water arerespectively mercury-0.11ton, lead-0.78ton, 6-valence chrome-0.4ton,arsenic-0.17ton, hydrogen cyanide-4.67tons, volatile phenol-14.86tons, oils-760tons. Among them the release of 6-valence chrome, volatile phenol andhydrogen cyanide had dropped by 82%, 5% and 53% against the previousyear and met the targets set for 2000 by the central government for totalcontrol of main pollutants in the waste water.

2.4. The Brief Introduction of the Tianjin Dagang Ancient Lagoon WetlandNatural ReserveThere are lots of wetlands spreading over Binhai Coastal New Area, theybelong to ancient lagoon wetland, water mouth wetland, mud flats wetland,shallow water wetland etc. the said Dagang wetland natural reserve is justsuch a typical ancient lagoon type of wetland.The reserve consists of 7 parts: Beidagang reservoir, Guangang lake,Shajingzi reservoir, Qiangjuan reservoir, Duliujian river flood relief channel,Lier bay and coastal mud flat totaling an area of 44,240 hcs. The reserve was

2-17

approved later in 2000 as a municipal class natural reserve. Historically thereserve had been distributed with many wetlands, and all year round there arethin layer of hydrops or pondings or very wet appearance over the land. On thewetland are growing exuberant reed and other wild plants as the superb ecoenvironment is an ideal place for aquatic lives to multiply and grow, also a basefor many rare species of wild animals to migrate, perch and proliferate.Guangang lake located at the northeast corner of Dagang District is part andthe experimental sector ( see fig. 2-10) of the reserve according to functionaldivision. The lake is the leftover land of the ancient Bohai sea recessiontotaling 2,140 hecs, amid which 556 hecs are lake waters, 1,584 hecs are land,the water reserved quantity is up to 6.80 millionM3. The Dagu sewage canalunder this project just flows by the its north side (see fig.2-11). Guangang lakearea enjoys very good natural eco environment and thus a place to attractmany birds to perch and proliferate, they are ,among others , herring gull,heron, mallard, coot, red-neck and blue-neck, lark, woodpeckers and eaglesetc. most part of the lake area is low terrain which used to be marshes. Thesoil is salinized and alkalinized and rampant with hygrophytes like reed. Inaddition there are also wild communities of locust trees, Chinese tamarisk,salt-prone grass etc. some belong to pharmaceutical wild plants and grasssuch as dandelion, motherwort and psyllium etc..

In 1988, the municipal government decided to develop Guangang Forest Parkand renovate and dredge Guangang lake, and to plant trees extensively there.Between 1990-2000, 1.48 million trees were planted there and 1.2 million havesurvived occupying 670 hecs. The trees are mainly Chinese ash, Chinesescholar tree, torch tree, tree of heaven, and some mulbeeries, Shanhaiguanpoplars and willows in addition to a small number of south locust trees, dragonclaw locust trees, bushes and shrubs etc. in the Park, the forest accounts for41% of the total land. Now the park has become an integrated multifunctionalplace with tourism, aquatic farming, and reed production. (see fig.2-12 and 2-13) If the synthetic renovation of Dagu sewage canal could completely attainthe ideal target, it certainly could provide the Park with a source of purifiedrecycled water purposed for irrigation of wood and trees to solve the problemsof shortage of fresh water and development limitation due to s.oil salinizationand alkalization.

2-18

Fig 2-10 Tianjin Beidagang WetlandNatural Reserve Functional Zoning Map -:

N X,-S.,. i

* .X, i, -.N

N! 9t

... . ..~~~~~~~~~

2N 19 , .

Fia 2-17 Guanaana Lake Wetland Reserve Geo-Location

< H t 1 4 g s..t'.. '.,

X..-

Fig. 2-12 Guangang Lake View (No. 1)

Fig. 2-12 Guangang Lake View (No. 2)

2-20

2.5. Brief Introduction of Inshore of Bohai SeaTianjin's inshore is located at the bottom of Bohai Bay, the coast starting fromthe north Jianhekou to the south Nanqikou totaling a line of 153.33km. Thecoastal base is as broad as it is flat, the soil is largely wetiand, salinized welsoil and salinized soil. The coast is 2 - 3 m above sea and the intertidal band is3 - 5 km wide, the soil is of quaternary sediment constituting a typical mudcoast with poor self purifying capacity.Tianjin's sea area is divided into class 1, 2, 3, and 4 zones according to thestate's sea water quality standard and sea area functional zoning demand.(see fig. 2-14)From the monitoring results in different periods and different years, it is foundthe main pollutants of the sea sectors are inorganic nitrogen, oils, inorganicphosphorus and COD. Following is the comprehensive evaluation of the waterquality of Tianjin's sea area:1. Evaluation by the zoning of the key monitored sea sectors:The sea water quality status of Tianjin's sea area is very serious, mainpollutants are nutrient salts (inorganic nitrogen, active phosphate), and thelead, mercury of the heavy metals are also short of standard. The pollotedsectors are Hangu north area, Dagang offshore area, North sewage rivermouth as well as Chengtou sea farming zone. The overall analysis shows thatin 2000 the heavy metal pollution tended to get worse, which should causeconcern from us. Now evaluations go by the monitored sea sectors as follows:

(1) close-to-shore key sectors. The sea water environment quality of thesectors is generally poor, main pollutants are nutrient salts, sea waternutrient salts of 80% of the area are not up to standard, in whichHanguwai sector has become class 4-minus sea water, and the sectorfrom south of Tanggu to the north of Dagang has become class 4 seawater.

In the meantime, the pollution of heavy metal in the area should claim ourhigh attention with lead having become the Tianjin's main heavy metalpollutant, the lead content of 70% of the key sectors has surpassed thestandard, and the standard index being 1.28. According to the singlepollution factor assessment method, the close-to-shore area of Tianjinhas become heavy metal class 2 sea area. Great concerns should begiven to the heavy metal pollution.

(2) Close-to-land waste outlet key sectors. There are two leading key landwaste outlets (North sewage outlet and South sewage outlet) in Tianjin,with the former most seriously polluted, its nutrient salts exceed thestandard by 75%. The sea area nearby has become class 4 - minussea water. Heavy metal pollution features lead and mercury and outletnearby place has become heavy metal pollution class 2 sea area.

2-21

J.

~~~~~~~~~~~0 tv 8- .- -.

Fig. 2-14 Tianjin Close-to-Shore Sea Area Water Quality Status

2-22

(3) Waste dumping sectors. The key of monitor is heavy metal andsuspension particles in the sectors. The biggest TSP appear in middleof the sectors. The main heavy metal pollutant in the sea water is lead,substandard rate reached 86%. According to the single pollutionfactor assessment method, the waste dumpingTUWekrs and the nearbysea areas have become heavy metal pollution class 2 sea water.

(4) Key aquicultural sectors. The main pollutants in Tianjin's two main bigaqua farms are nutrient salts. The nutrient salts of their nearby seaareas are all meeting the sea water class 4 standard. 75% of the areahas become class 4 - minus sea water. It may well say that the nutrientsalts pollution in the neighborhood sea area of the farms has come tovery serious degree. In the meantime, the nearby sea areas ofGaoshaling aqua farm presents serious COD substandard problemswith COD content in sea water of most nearby sea areas hassurpassed the allowable values of class 3 water standard. According tothe single pollution factor assessment method, the nearby sea areasof Gaoshaling aqua farm has become a COD polluted class 4 seawater.

The content of heavy metal lead in the nearby sea areas of the two key aquafarms are all surpassing the standard value with the nearby sea area ofChengtougu farm more serious. The nearby sea area of the farm is also moreseriously polluted by excessive heavy metal mercury, which made it become amercury pollution class 2 sea water, while the mercury in the nearby seaarea of Gaoshaling farm is still within the standard.

2. Evaluation by environmental functional zoningAccording to Tianjin's close-to-shore sea area environment functional zoning,evaluation goes by four sea sectors;The results of the evaluation indicate that:

(1) Class I environmental function zone. The main pollutants of the zoneare phosphorus and heavy metals. Its nitrogen surpasses the standardby 85% with the biggest value turning up in Chengtou aqua farm,surpassing the class 1 water standard by 3.63 times. Heavy metal leadvalue surpasses class 1 water quality standard by 92% with the biggestvalue turning up at the northwest of the waste dumping area up by 2.86times over class 1 water quality standard. Although the pollution ofother pollutants are comparatively moderate, they all are above thevalues of the standard, oils exceeding rate is by 23%, the biggest valuebeing 1.98 times above standard. The heavy metal mercury exceedingrate is 38%, the biggest value being 1.96 times above standard.

(2) Class 2 environmental function zone. The main pollutants of the zoneare nitrogen, phosphorus. Its nitrogen value surpasses the class 2

2-23

water quality standard by 92% with the biggest value appearing inChengtougu aqua farm 2.93 times above class 2 water quality standard.Its phosphorus value surpasses class 1 water quality standard by 33%with the biggest value appearing in Chengtougu aqua farm 1.47 timesabove class 2 water quality standard. The pollution of other pollutantsare comparatively moderate, only COD value in the nearby sea area ofGaoshaling aqua farm is higher than standard, 1.49 times above class2 water quality standard.

(3) Class 3 environmental function zone. The water quality status of thezone is basically good with all the monitored pollutants' indexes belowstandard value.

(4) Class 4 environmental function zone. The water quality status of thezone is basically good with all the monitored pollutants' indexes belowstandard value.

It could be seen from the above analysis that the sea area pollution may betracked up mainly to land sources. One is Beitangkou outlet which hasamassed up all the waster water from Beijing sewage rivers, Hangu sewagereservoir, TEDA-Bei drainage open channel, Heizhu River, Beitang sewageriver etc. Also there are rivers like Jiyun river, Chaobaixin river, Yongdingxinriver etc at long last converging at Yongdingxin river and flows into sea atBeitang outlet. This is the main reason behind the serious pollution situation inBeitangkou outlet nearby sea area. Another is Dagukou outlet where collectsthe waste water from Tianjin Dagu sewage canal, Haihe River, Tianjin Harbour,Tianjin Alkaline Works and Bohai Oil Companies etc. This is the main reasonbehind the serious pollution situation in Dagukou outlet nearby sea area.The following 3 tables demonstrate the water quality pollution situations at thekey waste water outlets.The Sea Water Pollution Evaluations at Tianjin's Key Waste Water OutletsNorth

Sewage Do(umo/l) Do(mg/i) Pi(Do) Cod(mg/1) Pi(cod) Oil(mgII) Pi(Oi1)River _ _ _ _ _

Al 406 6.946 0.92645 0.012 0.24A2 375 6 1 1.20 0.6 0.009 0.18A3 390 6.24 0.961538 1.09 0.545 0.075 1.52A4 387 6.192 0.968992 1.14 o.57 0.010 0.2

SouthSewage

RiverB1 423 6.768 0.886525 1.78 0.89 0.017 0.34B2 391 6.256 0.959079 1.98 0.99 0.006 0.12B3 413 6.608 0.90799 1.60 0.8 0.013 0.26B4 453 7.248 0.827815 1.66 0.83 0.011 0.22B5 423 6.768 0.886525 1.66 0.83 0.010 0.2B6 409 6.544 0.91687 1.26 0.83 0.009 0.18

2-24

The Sea Water Pollution Evaluations at Tianjin's Key Waste Water Outlets(continuation 1)

North Sewage Do(umo/1) Po(mgAl) Pi(po) N(umoL/I) N(mg/1) Pi(N) PH Pi(PH)

River _ _ _ _ _ _ _ _

Al 1.25 0.03875 2.583333 38.50 0.0539 2.695 7.78 1.05173A2 1.02 0.03162 2.108 42.00 0.5C N 5 .94 7.85 0.857143A3 0.31 0.00961 0.64.667 10.49 0.14686 0.7343 8.17 0.057143A4 0.89 0.02759 1.839333 35.98 0.50372 2.5186 7.65 10428571

SouthSewage

River__ _ _

B1 0.19 0.00589 0.392667 13.63 0.19082 0.9541 8.01 0.4B2 0.36 0.1116 0.744 38.79 0.54306 2.7153 7.96 0.542857B3 0.39 0.01209 0.806 29.14 0.40796 2.0398 8.01 0.4B4 0.23 0.00713 0.475333 14.63 0.20482 1.0241 8.12 0.085714B5 0.38 0.01178 0.785333 13.76 0.19264 0.9632 8.10 0.142857B6 0.23 0.00713 0.475333 11.31 0.15838 0.7917 8.10 0.142857

The Sea Water Pollution Evaluations at Tianjin's Key Waste Water Outlets(continuation 2)

NorthSewage Pb(guA) Pi(Pb) Cd(ug/A) Pi(Cd) As(ugA) Pi(As) Hg(ug/1) Pi(Hg)

River _ _ _ _ _ _ _

Al 1.04 1.04 0.28 0.28 2.59 0.1295 0.11 2.2A2 0.84 0.84 0.27 0.27 10 0.5 0.083 1.66A3 4.16 4.16 0.24 0.24 1.11 0.0555 0.001 0.02A4 0.83 0.83 0.31 0.31 7.04 0.352 0.03 0.6

SouthSewage

RiverB1 0.057 1.14B2 1.01 1.01 0.38 0.38 2.22 0.111 0.066 1.32B3 1 1 0.36 0.36 1.11 0.0555 0.057 1.14B4 1.14 1.14 0.28 0.28 1.48 0.074 0.057 1.14B5 1.08 1.08 0.4 0.4 1.48 0.074 0.046 0.92B6 0.88 0.88 0.25 0.25 0.74 0.037 0.039 0.78

2-25

3. Environmental Impact Key Elements Identificationand Evaluation Factors Screening

3.1. Environmental Impact Key Elements Identification3.1.1. Environmental Impact Key Elements ScreeningIn light of characteristics of this project as well as of the analysis on the naturaland social environment of the project's components' sites and on theenvironmental features of the surrounding areas, the identification has beenmade of key environmental impact elements to the project. The details areseen in figs 3-1 through 3 -4.Water drainage components: Drainage system renovation, Dagu sewagecanal renovation and Shuanglin WWTPFig 3-1 Water Drainage System K y Environmental Impact Identification Table

Item of construction Key Environmental Impact

Land conscription and relocation The land use nature is changed which will affectemployment and the life quality of the people.There is sludge in Fengchan river, disposingapproaches to be determined. Waste water line is

Dredging about 49km and the rain pipe about 89km, whichhave some impacts on traffic and citizens

River bed 'travelingand pipeline Engineering machine Exhaust gas, noise and flying dust affecting

works operating citizensSpoil transport and Certain amount of flying dust and traffic noise t bedisposal producedVegetabon recovery Certain impact on existng vegetation, recover orimprove the existing landscape.Construction of pump Construction noise and flying dust.

Pump stationstation Material, spoil Increases the traffic volume, noise and flyingcomponent transport and disposal dust.

Daily life of builders Site life waste dischargePumping and Reduces the quantity of pollution into Haihe, soconveying of rain and to improve the city landscape.

Pump waste waterstation Foul smell Affecting surrounding environmental air qualityoperationand Pumps operating Equipment noise impact on sound environmentmaintenance Pipeline desilting and Produce solid waste, impact dependent on the

mesh cleatrng and final disposal approach.transport

No natural reserve, no rare species of animalsImpact on land eco and plants, pipes laid on the planned roads, landsystem use type changed, pondings evidently reduced,

Execution of life quality improved.the project relics and sites No historic relics and sites around

Social and economic Improves urban infrastructure and build up theimpact strength of economic development

3-1

Fig. 3-2 Dagu Drainage Canal Renovation Works Key Environmental ImpactIdentification Table

Item of construction Key Environmental ImpactRids it of the sludge silted for scores of years, solving the problem of thesludge release to add up to the pollution of water. Ensures the effect of theVWVTP to be set up in the upper reaches, and the pollution sourcecontrolling components. it is an indispensable guarantee for Tianjin toimprove its urban infrastructural facilities' construction and bring them intofull play. It provides good and necessary conditions for effective use andprotection of water resources conditional upon the up-to-standarddischarge of waste water from the upper reaches; and plays a active rolein improving the offshore sea water quality. At the same time, it also playsa positive role to relieve the citizens along the banks of their long standingsuffering from the pollution and secures for them a thorough improvement

c of life quality. But the process of construction may produce unfavorablec impact on some sectors.2 Bottom Foul smell produced, noise polluting the surrounding environment quality,.2 sludge in addition to the pollution of vehicles' exhaust gas, noise and sludge

clearing fallout.Sludge Foul smell, noise, soil pore water produce pollution to the site

dewatering environmental quality.Filtrate May produce ill effect on the surrounding surface water environment

treatment quality.Sludge Bad stacking may affect adversely the agricultural soil quality such as

stacking heavy metals etc.Ensures the result of sludge clearing and expands the green area,

E beautifies urban landscape and improves people's life quality,> 0 2. -Sludge Traffic noise, car exhaust gas, and sludge fallout pollutes the

.2 °'ti transport environment.CD a) Groundc surface Improves people's life quality.

greeningSludge for About 2 million M3 of sludge may engender very heavy pollution to the

farming eco environment if site selection or disposal is not properly done.Sludge for May cause ill effect to farmland eco system.greeningSludgeo burial May bring about pollution to soil and ground water.

.0 Sludge formarinereclamation Sludge soaking release may have impact on river water quality.

landn bSludge Toxic matters in the sludge may cause bad effect on the offshore area.

burialSludge Volatile gas and fluid penetration and sludge transport may affect regionalSudge eco environment.burning And second pollution like dioxin may take place.

Greening belts Beautifies urban and rural environment, reduce the foul smell' influence toon both sides environmental air quality.

Engineering Exhaust gas and noise have impact on environmental air and sound

Construction machines, environment.period vehicle __I

of builders Daily life garbage, waste water, and fecal pollution.

3-2

Fig. 3-3 Shuangling WWTP Ke Environmental Impact Identification TableActs of impact on environment environmental impact

Some farmland and vegetable filed will beSite selection acquired, regional environment not very sensitive,

but there exists farmland compensation problem.Enough protective belt Needs to build 300m hygiene protective belt to

ensure certain greening area.The intended site is farmland, some vege. Fieldand a number of citizens' houses (relating 149

Land acquisition people of 35 households). It necessitates a fewrelocations and has small influence, the lost landfarmers shall get a conclusive compensation.Affects a segment of 7.6km, impact on traffic

Dredging concentrated on pipe laying lines for water inlet.constructon Machine exhaust gas, noise and vibration harass

sewage equipments operating citizens.pipe laying spoil transport Certain amount of flying dust, and traffic noise.

Certain impact on existing vegetation, recovers orvegetation recovery improves the existing landscape

ground leveling and Noise and flying dust.bulldozing

constructon Small impact of exhaust gas and noise on nearbyconstructon equipment residents.

of \IWvTP material, spoil Increases the city traffic volume, noise and flyingtransport dust.

daily life of builders Site life wastes discharge.

No natural reserve, no rare species of animalsimpact on land eco and plants, but the land use type will be changed.damage on relics No relics around the site.

Perfects urban infra facilities' constructon, buildssocial and economic impact up economic development power and expands

employment chances.Cuts down the pollution load onto Bohai Bay,

exhaust water reduces the impact on the lower reaches ofsewage river, and lays a foundation for recycling

WWTP in water source.normal foul smell release An impact scope of 100 - 200m, without affecting

operation residential area.machine noise No people around, no impact.

sludge transport and Its transport doesn't affect city views, the finalfinal disposal impact depends on the final disposal approach.

untreated waste water Impacts the water quality of lower reaches ofequipment discharge sewage river.overhauling sludge could not be Produces environmental problems like foul smellor accident dewatered in time etc.

chlorine leakage Affects people (workers)' health.Possible minor influence to site surrounding air

winter heating boiler quality.

3-3

Transportation improvement components:In keeping with their own features for transportation projects and with concreteconditions of the localities, the key environmental impact of the this componentis seen in the following identification table.Fig. 3-4 Transportation improvement Components Key Environmental Impact

Identification TableActs of impact on Environmental impact

environmentLand acquisition Jinzhonghe interchange and Beima Rd renovation will relocate some

and relocation residential houses and have some impact on the relocatees.Mid and Inner ring Rds are the artery traffic lines of Tianjin, the

Road renovation, especially the building of interchanges will necessitate the(overpass) temporary stop of traffics, to adopt bypass measures. This will interfere

construction the urban transportation ending in traffic jam and congestion whichinconvenience the traveling, working and life of citizens.

Reworking of All affected underground lines (such as power, communication andpipes and water supply and drainage) by construction will be either removed or

lines transformed , which may have impact on the normal social life.Excavation, backfill, and relocation will generate flying dust, and

o Earth engineering soil borrowing and disposal, construction garbage stackingwork will take up precious urban land, which brings about certain impact on

urban eco and my lead to partial soil erosion.0 During loading and unloading of sand, cement and grit and clay, flying0o Vehicles dust may happen. They may fall out of vehicles during transportation' at work which again may give rise to flying dust. Machines and vehicles willCD exhaust gas and give off noise when operating.a. Construction will destroy or occupy some greening and vegetation parts

Construction at both sides of roads. The installation of machines, foundationsite excavation and removal of underground lines will cause damages on

urban roads and affect urban landscape.Widening of Jinhe River is a scenic river course of Tianjin, water is planned and

Rihuanli maintained for class V. The widening of the bridge - Anshanxi Rdbrihuad e striding across Jinhe may produce short term effect on that section ofbridge water quality.

fDaily life Site life garbage discharge.

As mid and inner ring roads are the important transport trunk lines andthe basis of road networks, the realization of this project will lift theaverage speed of motor vehicles, and generate positive impacts on

Road relieving the conflict between non-powered vehicles, pedestrians andconstruction motor vehicles, on enhancing the safety of non-powered vehicles,

O pedestrians, on improving the movements of motor vehicles andshortening traveling time, on Tianjin's further economic development

o ________ and prosperity.0 All motor vehicles running on mid and inner ring roads will emitV Running pollutants like exhaust gas containing CO, NOx, THC etc., mayCD vehice increase the environmental air pollution load along the lines. The traffico i noise of the vehicles will have an impact on the residential colonies,

schools and hospitals and other sensitive points lining the roads.After the project is finished, some urban beautifying and greening

Viaducts and landscape works will be added in consideration of the viaduct bridgeintersections and new intersections to bring to the urban eco environment and urban

view some favorable impact.

3-4

3.2. Evaluation Factors ScreeningBased on the identification and the tentative analysis of the key environmentalimpacts of this project, the evaluation factors have been screened accorRv g tov nthe degrees of their impact on the environment , the main evaluation factorshave been determined as seen in fig. 3-5.

Fi . 3-5 Main Evaluation Factors TableItem Evaluation Factor

Social environment The social and economic and traffic impacts duringconstruction period, and the impacts on people's lives fromland acquisition and relocation

Atmosphere Construction flying dust, CO,NOX THC from vehicles exhaustenvironment quality gas, and routine air pollutants of SO2, TSP as well as ammonia,

__hydrogen sulfide, dense foul smell.Noise Regional environmental noise and traffic noise.

Solid waster Engineering spoilRiver sludge (heavy metals incl. pH Cd, Hg, Pb, Cr, As, Cu, Zn,Ni and DDT, benzene), mesh dregs and pipe silts

Surface water pH, SS, COD,, BOD5 ammonia-nitrogen, phosphorus.environment quality I

3.3. Evaluation StressBased on the identification of key environmental impact elements and thescreening of evaluation factors, the stress of this evaluation is placed on soundenvironmental impact, environmental air impact, and surface environmentalimpact and solid waste impact as well as social environment impact andlandscape. The stresses of this evaluation for the components are seen in fig.3-6.

Fig 3-6 Evaluation Stresses of the World Bank Project's ComponentsItem Environ. Surface Noise Solid society landscape

air water wasteDrainage Drainage

systemrenovationDagu canalrenovationShuanglin v

WwTP _ _

Transport improvement V_

3-5

3.4. Environmental Protection TargetsBased on the initial analysis of the environmental impact during constructionand operational periods, the targeted environmental protection objects arealtogether 02 sensitive points including residential areas, schools, hospitalsrelated to the project. Among them drainage components involve 132 (106 forsystem renovation, 16 for Dagu sewage canal, 9 for Shuanglin WWTP),transportation components involve 71. For details see appendix 1 - List ofEnvironmental Protection Targets.

Appendix 1 WB Project Environmental Protection Targets

Water Drainage System Renovation Components Environmental Protection TargetsItem No Target name Distance and Sensitive point Sensitive Element of Degree of affection

4.

name . position from project size point type protectionI Road 2 station nancangRd(N)20mr Office Air, noise Moderate, temporary

2 Nancang No. 2 Jian,residential big nancangRd(N)20m Resident Air, noise Moderate, temporary3 Store nancangRd(N)20m Store Air, noise Moderate, temporary4 Chongyang hostel nancangRd(N)20m Hostel Air, noise Moderate, temporary5 Hueyou restaurant nancangRd(N)20m restaurant Air, noise Moderate, temporary

z 6 Hongyuan hotel tianchongRd(N)20m Hotel Air, noise Moderate, temporary7 Huanyandong li 13# tianchongRd(N)20m 1 bIg Resident Air, noise Moderate, temporary

CD, 8 One storey houses of residents tianchongRd(N)20m 100 households Resident Air, noise Moderate, temporarya)u 9 Xinhua li 11# GuoyuannanRd(N)20m 1bIg Resident Air, noise Moderate, temporaryo 10 Xinhua li 4# 9# 10# GuoyuannanRd(N)20m 3blgs Resident Air, noise Moderate, temporary03 11 Beichen elderly university GuoyuannanRd(N)20m School Air, noise Moderate, temporary

-ao 12 Guyuanxincun 10-14# GuoyuannanRd(N)20m 5blgs Resident Air, noise Moderate, temporaryCD8 13 Beichen government guest house GuoyuannanRd(S)20m 2blg Hostel Air, noise Moderate, temporaryto 14 Xinhuanan ii 1# 2# Guoyuannan(S)20m Resident Air, noise Moderate, temporary

15 Beihen experimental school guoyuanbeiRd(N)20m School Air, noise Degree of affection16 Yandao small store guoyuanbeiRd(N)20m Store Air, noise Moderate, temporary17 Danfeng li 1# guoyuanbeiRd(N)20m 1big Resident Air, noise Moderate, temporary18 Beechen kindergarden guoyuanbeiRd(N)20m Kindergarten Air, noise Moderate, temporary19 Beechen vocational school guoyuanbeiRd(N)20m school Air, noise Moderate, temporary

3-7

20 Cangfeng park guoyuanbeiRd(N)20m Park Air, noise Moderate, temporary21 Citizens' horse guoyuanbeiRd(N)20m Resident Air, noise Moderate, temporary

22 Guivuan restaurant guoyuanbeiRd(S)20m Restaurant Air, noise Moderate, temporary23 Xiaguang li 1 guoyuanbeiRd(S)20m 1big resident Air, noise Moderate, temporary24 Xiaguangli4#1 9# 20# guoyuanbeiRd(S)20m 3bigs Resident Air, noise Moderate, temporary25 Wentaili 4# BeicangRd(N)20m Ibig Resident Air, noise Moderate, temporary26 Shunheli 1# BeicangRd(N)20m 1bIg Resident Air, noise Moderate, temporary

en 27 5blgs of Fadian gongyu BeicangRd(N)20m 5blg Resident Air, noise Moderate, temporaryc 28 Xiangheli 6# BeicangRd(N)20m 1 big resident Air, noise Moderate, temporarya 29 Tianchenrestaurant BeicangRd(N)20m restaurant Air, noise Moderate, temporary

E. 30 Beichen vocation school BeicangRd(S)20m school Air, noise Moderate, temporary08 31 Shuangfa restaurant BeicangRd(S)20m restaurant Air, noise Moderate, temporaryC 32 Chaoyangli 3#6# BeicangRd(S)20m 2bigs resident Air, noise Moderate, temporary

33 Beechen government office BeicangRd(S)20m Office Air, noise Moderate, temporaryc 34 Huanyannanli 1# Beijing-tianiinRd(W)30m 1bIg Resident Air, noise Moderate, temporaryz 35 Mazhuang blg15# Beijing-tianiinRd(W)30m Ibig Resident Air, noise Moderate, temporary

36 Huanyanlil#4#8# Beijing-tianjinRd(V)30m 3blgs Resident Air, noise Moderate, temporary37, Small stores around Beijing-tianjinRd(W)30m Store Air, noise Moderate, temporary39 _

38 Guangxialil#2#3#4#5# Beijing-tianjinRd(W)30m 5b[gs Resident Air, noise Moderate, temporary40 Restaurants nearby Beijing-tianiinRd(E)30m Restaurant Air, noise Moderate, temporary41 Jixian restaurant - Sichuan branch Beijing-tianjinRd(E)30m Restaurant Air, noise Moderate, temporary42 Stores around BeijngtianjinRd(E)30m SoeAir, noise Moderate, tempory

_______ 43 Goubuli branch Beijing-tianjinRd(E)30m Restaurant Air, noise Moderate, temporary

3-8

44 Beechen workers club Beijing-tianjinRd(E)30m Culture Air, noise Moderate, temporary

45 Xinhua kingdergarden Beijing-tianjinRd(E)30m Kindergarten Air, noise Moderate, temporaryX 46, Bank and offices Beijing-tianjinRd(E)30m Office Air, noise Moderate, temporaryr_ 48o 47 Huanyanwenguan condominium Beijing-tianjinRd(E)30m Resident Air, noise Moderate, temporaryE 49 Zhenhua deprt store Beijing-tianjinRd(E)30m Deprt store Air, noise Moderate, temporaryC.)cn 50 Xinhuali3# guyuandongRd(W)20m IbIg Resident Air, noise Moderate, temporaryr 51 Xurili8# guyuandongRd(W)20m 1 bIg Resident Air, noise Moderate, temporary

0) 52 Shuangfawenguan condominium guyuandongRd(W)20m Resident Air, noise Moderate, temporary

co 53 Shuangfa restaurant guyuandongRd(W)20m Restaurant Air, noise Moderate, temporaryz 54 A few stores guyuandongRd(W)20m Air, noise Moderate, temporary

55 Guoyuanli1#11# guyuandongRd(W)20m 2blgs Resident Air, noise Moderate, temporary

56 Dongshengli2#3# guyuandongRd(W)20m BIgs resident Air, noise Moderate, temporary

57 Danfengli 7# guoyuandongRd(VV)20m 1big Resident Air, noise Moderate, temporary

58 Shuangfawenguan 6#18#19# guoyuandongRd(VV)20m 3blg Resident Air, noise Moderate, temporary

c 59 Beichen library guoyuandongRd(W)20m Culture Air, noise Moderate, temporarye)c 60 Beichen cinema guoyuandongRd(W)20m Culture Air, noise Moderate, temporary0 -

E 20 Cangfeng garden gaofengRd(20m park Air, noise Moderate, temporary

o 61 Yangliandi park gaofengRd(W)20m park Air, noise Moderate, temporary

IY 62 Beechen government office gaofengRd(E)20m Office Air, noise Moderate, temporary

c 1 Youth vocation school shuishangxiRd(W)20m school Air, noise Moderate, temporary

X 2 Law admnt. School gaofengRd(W)20m School Air, noise Moderate, temporary

3 Tianjin yizhong school gaofengRd(W)20m School Air, noise Moderate, temporary

4 Shuilan gardenl#5# gaofengRd(W)20m 2bigs Resident Air, noise Moderate, temporary

3-9

5 Yuliangli 13 gaofengRdON20m I big Resident Air, noise Moderate, temporary

6 Residential big gaofengRd(W)20m Resident Air, noise Moderate, temporary

7 Small shop gaofengRd(W)20m Deprt store Air, noise Moderate, temporary

8 Residential big gaofengRd(W)CS l 0 N N Ov Resident Air, noise Moderate, temporary

9 271 hospital shuishangxiRd(E)20m Hospital Air, noise Moderate, temporary

1 0 Tianjin zoo Shuishangdong Rd(W)20m Park Air, noise Moderate, temporary

11 Water park Shuishangdong Rd(W)20m Park Air, noise Moderate, temporary

1 2 Ningfa touring condominium Shuishangdong Rd(W)20m Resident Air, noise Moderate, temporary

to 1 3 Xingyuanlil#2#3# Shuishangdong Rd(W)20m 3b[gs Resident Air, noise Moderate, temporary

o 14 Cuiyuanli3#5#8#10#12# Shuishangdong Rd(W)20m 5blgs Resident Air, noise Moderate, temporaryo 15 Ninglexili villa 9-16# Shuishangdong Rd(W)20m 8blgs Resident Air, noise Moderate, temporary

0 1 6 Didu hotel Shuishangdong Rd(W)20m Restaurant Air, noise Moderate, temporary

z 1 7 Tayuan restaurant Shuishangdong Rd(W)20m Restaurant Air, noise Moderate, temporary

r_ 1 8 Ningxiangli3# 6# Shuishangdong Rd(W)20m 2blgs Resident Air, noise Moderate, temporaryw 19 Ningfuli4#16# 17# 18#20# Shuishangdong Rd(W)20m 5b[gs Resident Air, noise Moderate, temporary

LL 20 WaterparkRd(W)20m Resident Air, noise Moderate, temporary

21 Jindu garden condominium WaterparkRd(W)20m Air, noise Moderate, temporary

22 Jindu garden condominium WaterparkRd(W)20m Air, noise Moderate, temporary

23 Da'ancuiweiyuan condominium waterparkRd(E)20m Air, noise Moderate, temporary

24 Cuiweiyuan7# 8#9# WaterparkRd(E)20m Air, noise Moderate, temporary

25 Ningleli 21# shiyingRd(W)20m Air, noise Moderate, temporary

26 Ningshengli 4# shiyingRd(W)20m Air, noise Moderate, temporary

27 Lidar condominium (5bigs) shiyingRd(W)20m Air, noise Moderate, temporary

28 Yuan villa5# 9# 14# 18# 23# 29# 35# shiyingRdCvV)20m r Air, noise Moderate, temporary

3-10

29 Ningleli 22# shiyingRd(E)20m Air, noise Moderate, temporary30 Donghai'an cuiwei garden shiyingRd(E)20m Air, noise Moderate, temporary31 Cuiguan condominium (4blgs) shiyingRd(E)20m Air, noise Moderate, temporary32 Chenxi condominium (1-4#) shiyingRd(E)20m Air, noise Moderate, temporary33 Juxiangnanli 1-9# weijingnanRd(W)20m Air, noise Moderate, temporary34 Jiangdu restaurant weijingnanRd(VV)20m Air, noise Moderate, temporary35 Juxiangnanlil-9# weiiingnanRd(V)20m . Air, noise Moderate, temporary36 TV tower lake weijingnanRd(E)20m Air, noise Moderate, temporary

co 02 Stores around YuliangRd(VV)20m Air, noise Moderate, temporary03 Residential 5bigs YuliangRd(VV)20m Air, noise Moderate, temporary

0o. 04 Tianjin institute of Technology YuliangRd(S)20m Air, noise Moderate, temporary

D 37 Tianjin enterprise administration center WaterparkBeiRd(N)20m Air, noise Moderate, temporary'a 38 Tianjin swimming pool WaterparkBeiRd(N)20m Air, noise Moderate, temporarym 39 Fancy flower, bird, fish, insect market WaterparkBeiRd(N)20m Air, noise Moderate, temporary

= 40 Yanglong condominium WaterparkBeiRd(N)20m . Air, noise Moderate, temporayEL 41 5 restaurants such as Sentai WaterparkBeiRd(N)20m Air, noise Moderate, temporary

42 Shuishangcun villa WaterparkBeiRd(N)20m Air, noise Moderate, temporary43 Jinlong condominium 1# 5# WaterparkBeiRd(N)20m Air, noise Moderate, temporary44 Sande int'l village WaterparkBeiRd(N)20m Air, noise Moderate, temporary45 Zhoudeng memorial hall WaterparkBeiRd(S)20m Air, noise Moderate, temporary46 10 plus restaurants of both sides of street WaterparkBeiRd(S)20m Air, noise Moderate, temporary47 Ningfuli 19# canggongRd(N)20m Air, noise Moderate, temporary48 Shuishang primary school canggongRd(N)20m Air, noise Moderate, temporary49 Juyangxiii 1# cangqongRd(N)20m Air, noise Moderate, temporary

3-11

50 Yeshangnongzhuang night club cangqongRd(N)20m Air, noise Moderate, temporary

51 Ningfa experimental kindergarten canggongRd(N)20m Air, noise Moderate, temporary

52 Ninglexili 1# canggongRd(N)20m Air, noise Moderate, temporary

53 Ni leli 21# canggongRd(N)20m _ _ __ Air, noise Moderate, temporary

54 Municipal civil affair bureau canggongRd(N)20m Air, noise Moderate, temporary

55 Cuihu garden condominium YunjiRd(N)20m Air, noise Moderate, temporary

56 Cuiguan villa YuniiRd(N)20m Air, noise Moderate, temporary

57 Tianbei villa YunjiRd(N)20m Air, noise Moderate, temporarV

c 58 Xiangyuanli 1# YunjiRd(N)20m _ Air_nose_odrat,_tmpoar

Co 59 _ Chenxi condominium1# YunjiRd(N)20m Air,_nose_Modrate,_tmporar00. 60 Garden villa1-3# YunjiRd(N)20m Air, noise Moderate, temporaryE Air, noise0 61 Bocai condominiuml# XiaguanRd(N)20m Air, noise Moderate, temporary

62 Chenxi condominium5# XiaguanRd(N)20m _______ Air, noise Moderate, temporary.

c 63 Garden villa3O# 36# 37# 38# 39# 40#41# XiaguanRd(N)20m Air, noise Moderate, temporarycoX 64 Ningfa sunny condominium4# 5# XiaguanRd(N)20m Air, noise Moderate, temporary

65 Hongyili 1# 3# ChangshiRd(N)20m Air, noise Moderate, temporary

66 Education college ChangshiRd(N)20m Air, noise Moderate, temporary

67 Wanye condominium ChangshiRd(N)20m Air, noise Moderate, temporary

68 Zhiyuanli 4# ChangshiRd(N)20m Air, noise Moderate, temporary

69 Zhiyi restaurant ChangshiRd(S)20m Air, noise Moderate, temporary

70 Fuhuongli ChangshiRd(S)20m Air, noise Moderate, temporary

71 Security vocation school ChangshiRd(S)20m Air, noise Moderate, temporary

72 Jiatai gardenl# ChangshiRd(S)20m Air, noise Moderate, temporary

73 Zhiyuanli 1-3# ChangshiRd(S)20m _ Air, noise Moderate, temporary

3-12

74 Suiyuani 1# YingshuiRd(N)20m Air, noise Moderate, temporary

75 Campus of Nankai Univer. in YingshueRd YingshuiRd(N)20m Air, noise Moderate, temPorary

76 Yingshuibeilil#7# YingshuiRd(N)20m Air, noise Moderate, temporary

77 YingshuiRd imary school YingshuiRd(N)20m Air, noise Moderate, temporary

78 Small stores around YingshuiRd(N)20m Air, noise Moderate, temporary

79 Yingshuixili YingshuiRd(N)20m Air, noise Moderate, temporary

80 Nankai No 28 kindergarten YingshuiRd(N)20m Air, noise Moderate, temporary

81 Yingshuidongli YingshuiRd(N)20m Air, noise Moderate, temporary

82 Xinhua news agency branch YingshuiRd(N)20m Air, noise Moderate, temporary

o 83 Xinhuayuan condominium YingshuiRd(N)20m Air, noise Moderate, temporary

o 84 Family planning research institute YingshuiRd(N)20m Air, noise Moderate, temporary

E 85 Yayouli2# YingshuiRd(N)20m Air, noise Moderate, temporary0o 86 Lide condominium 1# 2#3#7#8#13# YingshuiRd(N)20m Air, noise Moderate, temporary

z 87 Kaixiangxiang condominiuml# YingshuiRd(N)20m . Air, noise Moderate, temporaryco 88 Dihuali resident bgs YingshuiRd(S)20m Air, noise Moderate, temporary

uw 89 Rihuali 1#2# YingshuiRd(S)20m Air, noise Moderate, temporary

90 Rihuali 1#2# YingshuiRd(S)20m Air, noise Moderate, temporary

91 HeRuanbeili # YingshuiRd(S)20m Air, noise Moderate, temporary

92 Minghuanli 2# YingshuiRd(S)20m Air, noise Moderate, temporary

93 Small stores around YingshuiRd(S)20m Air, noise Moderate, temporary

94 Yuanyinbeili 1#2#17#18# YingshuiRd(S)20m Air, noise Moderate, temporary

95 Yingshuinanli 1#3#5#7# YingshuiRd(S)20m Air, noise Moderate, temporary

96 Huacheng hotel YingshuiRd(S)20m Air, noise Moderate, temporary

97 Kehaili 1# YingshuiRd(S)20m Air, noise Moderate, temporary

98 Kehai condominium YingshuiRd(S)20m Air, noise Moderate, temporary

3-13

99 Social science academy YingshuiRd(S)20m Air, noise Moderate, temporary00 Shanxi hotel YingshuiRd(S)20m Air, noise Moderate, temporary01 Tianjin 1V Broadcast University YingshuiRd(S)20m Air, noise Moderate, temporary1,2 Stores lining the river DongtingRd(W)20m Air, noise Moderate, temporary

a) 3 Xiangsheng restaurant DongtingRd(W)20m Air, noise Moderate, temporaryc -o 4 Haixiang condominium DongtingRd(E)20m Air, noise Moderate, temporaryE 5 Shihaixiang canteen DongtingRd(E)20m Air, noise Moderate, temporary8o 6 Zhujiangli 2#4#6# DongtingRd(E)20m Air, noise Moderate, temporaryZ 7 Zhujiangli 10#19#22# DongtingRd(E)20m Air, noise Moderate, temporary

9 Hexi No22 kindergarten DongtingRd(E)20m Air, noise Moderate, temporary10 Residential houses YanfengRd(planned Rd) N-20m Air, noise Moderate, temporary

11 Residential houses YanfengRd(planned Rd) S-20m Air, noise Moderate, temporary12 Residential houses YanfengRd(planned Rd) N-20m Air, noise Moderate, temporary

3-14

Dagu Sewage Canal Renovation ComponentEnvironmental Protection Target

Sensitive target name Nature Position Distance Element of protection Class of protection

Fish pond Water SE 40 Water quality GB11607-89 "Fisherywater quality'

Houtai village E 90 Air and sound envirn. quality ^(see note) class2 in GB3096-93XAyXinyuan Village W 180 Air and sound envirn. Quality * (see note) class2 in GB3096-93

cm0Wutai Village E W50 Air and sound envirn. Quality (see note) dass2 in GB3096-93

X ~~Wutai Village _E 180 Air and sound envirn. Quality ^(see note) class2 in GB3096-93Qingbowa farm Farm N 350 Air and sound envirn. Quality GB05618-1995 Grade 2

Yadian reservoir Water S 80 Air and sound envirn. Quality GHZB1-1 999 Class V

yidaogou Village N 50 Air and sound envirn. Quality (see note) class2 in GB3096-93

Zhaijiadian Village S 250 Air and sound envirn. Quality * (see note) class2 in GB3096-93Daluzhuang Village S 350 Air and sound envirn. Quality ^ (see note) class2 in GB3096-93

0Xiaoyingpan Village S 300 Air and sound envirn. Quality (see note) class2 in GB3096-93Yanglingzi Village S 130 Air and sound envirn. Quality (see note) class2 in GB3096-93

Xinzhuangzi Village N 250 Air and sound envirn. Quality * (see note) class2 in GB3096-93Shizhacun Village S 130 Air and sound envirn. Quality (see note) c_ass2 in GB3096-93

Tang gu Dongzhuangfang Village N 500 Air and sound envirn. Quality (see note) class2 in GB3096-93District sunjiatai village N 500 Air and sound envirn. Quality (see note) class2 in GB3096-93

3-15

Shuanglin WWTP Component

Item name No Target name Distance and position from Sensitive point Sensitive point Element of Degree ofproject size type protection affection

1 Housantai village SW1 OOm Farmer village T Qv gN le, ivi

2 Nanmaji village NW100m Farmer village Noise, air

3 Tianjin cemetery SE300m cemetery Noise, air

3-16

Transportation Improvement Components Environmental Protection Targets

Item name No Target name Dist.& position Sestv on ieSensitive Element Degreetem name No Target name from project Sensitive point size point type of protection of affection

1 Tongqu hutong - 19 right 1" row off street, 2-storey brick big, 1" floor- residence Noise 11 hdsDongfanglou hutong store, 2"d fL-1l1households, parallel to the Rd

0

Co 2 Fumin ht - Baiyi'an ht 21 left 2-storey brick bIg, 7hds, para, to Rd Residence Noise 7hds

0)

o2 3 Nol 92, 202 BeimaRd 21 right 2,3storey br. big, 7hds, para to Rd residence Noise 7hds

C

C)

4 No264 BemaRd 25 right 2-sto.Br.blg, para to Rd, 3hds Residence Noise 3hds

V

EmD 5 No274 BeimaRd 25 right 2-sto.Br.big, para to Rd, 3hds Residence Noise 3hdsm

6 No292, 304 BeimaRd 25 right 2-sto.Br.big, para to Rd, 6hds Residence Noise 6hds

c)

7 2-d central hospital 25 right 3-sto.br.big, 800 outpatients daily, 500beds Medical Noise Front op. big, rear7 2. central hospital 25 right inpts. Para to Rd Mp. BIg

3-17

Huasheng villageNol- 27 right 40ff 6sto.blgs, 72hds, 72hds8 ~ ~4 2 ih 300 of intersection Residence Noise 2dangle to Rd

.0 6

9 Huasheng villageNo5 24 right 6stobri.blg,36hds para Residence Noise 36 hds- ~~~~~~~~~~~~~~~to Rd

5sto.blg, 800 studentsz > 10 Tourism vocational 60 right of 20 classes, 80 education Noise 14 class rooms*° ° school teachers, para to Rd

° o 11 Jinsong big No 9 29 left 13-15sto.blg ,12hds, Residence Noise 112 hds- ~~~~~~~~~~~~~~~para to Rd__ _ _ _ _ _

0 1 2 Jinsong big No 2 25 left 6sto.blg,4ohds, para to Residence Noise 40 hds- Rd _ _ _ _ _ _ _ _ __~~~~~R

a ~~ 13 evechngl numbers 8off 4sto.blgs,32 hds, RsdneNie3 d13 vHuichangli 152-168 32 left 200 of ints agl to Rd Residence Noise 32 hds

t | 1 4 Zengfuli No 25 left 2sto,big, 3hds para to Residence Noise 3 hdso - 146,148,150 Rd

1 5 HarbinRd No 188 32 left tob Rd Residence Noise 160 hds__________________ ~~~~~to Rd

v > 1 6 Gong'an hospital 36 right 3sto.bIg, 350 beds Medical NoiseZ Nanjing Rd c 4sto.big,1350stts

en 17 schR Primary 35 left 20cls, 100tcs, para to Education Noise 21 class rooms'C Z5s schl R> ~~~~~~~~~~~~~~Rd

1 8 Guihouli 29 right 5sto.blg,60hds para to Residence Noise 60 hdsRd

.5 19 Yunfengli 52 right tob Rd Residence Noise 126 hdsc ~ __ _ _ __ _ _to Rd

Z 20 liuweiRd No 36A0 18 south of liuweiRd 5sto.blg,45hds para to Residence Noise 45 hds

3-18

21 Railwayworkers 48 right 3sto.brickbg, 16 cds, education Noise Cisrooms are all at fartraining center vertical to Rd side off Rd

22 Dayidong 50 right para to Rd Residence Noise 50 hds

3sto.brickbIg, 11 cls, 4dormitoriy rooms, 6423 Jiangnan boarding schl 35 left 400sts, 50tcs para to Education Noise sts

Rd _ _ _ _ _ _ _ _ _

. 24 Jinkaili No 10 b)g 30 left 4sto.brickbIg, 24 hds,24 Jinkaili No 10 bIg 30 left 4sto.brickblg, 24 hds, Residence Noise 34 hds______ ______ _____ ______ ______ _____para to R d

25 Jinkaili No 9 bIg 30 left 3sto.brickblg, 3 Residence Noise 27 hdsS ~ ~ _ _ _ _ __ _ _ _ _ _ __ _ _ _ _ _ _para to Rd

26 Jinkaili No 8 bIg 30 left p t hd Residence Noise 27 hdspara to Rd

N 3~~~~~~~~~~~~~~~~~sto.brickbig. 37 rowso

27 Jinkaili No 7 big 30 left 1sto.hs, 37chs, Residence Noise 27 hds_ ~ schl 1600sts, 50tcs,para to Rd28 Mingquannanli 50 right 5sto.brickblg, 24 hds, Residence Noise 24 hds

para to Rd4sto.brickbIg, 2 rows of

29 hongxingRd primary 46 left 1 sto.hs, 37cls, education Noise 2clsrooms I computerscht 1600sts, 50tcs, para to room

30 Shuyuanli No 2 blg 30 left 7sto.brickblg, 90 hd,Rsdec os 60 hds__________ ___________________ ~~ ~~para to R dRe i ncN o s

3-19

31 Rongqianli No3 4 31 right 7sto.brickblg,428 hds, para to Rd Residence Noise 304 hds

32 fukangRd primary schl 65 right 4sto.brickbig, 7cis, 180sts, 30tcs, para to Rd education Noise 7classes, 184 students33 Chunguang Big -8 31 right 4 sto.brickblg, 48 hds, para to Rd Residence Noise 48 hds

34 wujiayaoRd No 70 25 left 6 sto.brickbig, 36 hds, para to Rd Residence Noise 36 hds35 wujiayaoRd No 46 33 right 5 sto.brickbIg, 60 hds, para to Rd Residence Noise 60 hds36 Decaili 43 right 5 sto.brickbig, 60 hds, para to Rd Residence Noise 20 hds

.° 37 Fuoshanli No.6 34 right 5 sto.brickbig, 25 hds, para to Rd Residence Noise 20 hds

> 38 HinNo.a16n 56 right 3 sto.brickblg, 7 cis, 25sts/cls, 26 tcs, para to Rd Education Noise 3 cls, 75 peoplekindergarten _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

2 39 Fuoshanli 29 right 4 sto.brickbig, 120hds,paratoRd Residence Noise 120 hds

40 wu 31 (inside) 33 right 6 sto.brickbig, 48 hds, para to Rd Residence Noise 48 hds

CD 31 wujiayaoRd No 74 25 left 6 stosbrickbg, 24 hds, para to Rd Residence Noise 24 hds42 wujiayaoRd No 72 27 left 6 sto.brickblg, 24 hds, para to Rd Residence Noise 24 hds

U) 43 wujiayaoRd No 6478 26 left 5 sto.brickblg, 45 hds, para to Rd Residence Noise 45 hdso 44 Xianynoi No.28 26 right 4 sto.brickbig, 24 hds, para to Rd Residence Noise 44 hdst0 45 Xianjinli No. 1 26 right 3 sto.brickblg, 90 hds, para to Rd Residence Noise 90 hds

46 Complex big 1-4 units 25 right 6 sto.brickblg, 120hds,paratoRd Residence Noise 120 hds47 Complex bIg 5-8 units 25 right 6 sto.brickbIg, 120hds,paratoRd Residence Noise 120 hds48 Complex big 5-10 units 25 right 6 sto.brickbIg, 60 hds, para to Rd Residence Noise 60 hds49 Shengchang big 25 right 7 sto.brickb1g, 56 hds, para to Rd Residence Noise 56 hds50 Tongwan boarding schl 33 left 13cis, 500sts,30°of intsec angle to Rd Education Noise 9 class rooms

51 Jinxao hospital 30 right 5 sto.brickblg,, 2-5h sto. being hospital, 4^ sto. Medoca; Noise 1 ifhpatient roomare impt rooms, 5beds/room .

52 Ditan domitory 28 left 6 sto.brickblg, 40 hds, para to Rd Residence Noise 40 hds53 Fuwu dormitory 27 left 6 sto.brickblg, 54 hds, para to Rd Residence Noise 54 hds54 Xinhuili 8-10 24 left 5sto.brickblg, 45 hds, para to Rd Residence Noise 45 hds55 Xinhuili 10-15 28 left 7sto.brickbig,120 hds, para to Rd Residence Noise 120 hds

3-20

56 Jianqiangli 14-18 26 right 6sto.brickbig, 96 hds, para to Rd Residence Noise 96 hds

57 Jianqiangli 1-2 27 right 6sto.brickbtg, 48 hds, para to Rd Residence Noise 48 hds

58 Jianmeili 8-13 27 right 5sto.brickbig, 90 hds, para to Rd Residence Noise 60 hds

59 Jianmeili 4-7 27 right 5sto.brickblg, 60 hds, para to Rd Residence Noise 60 hds0

60 Jianmeili 1-3 27 right 6sto.brickbig, 54 hds, para to Rd Residence Noise 54 hds02 61 Wezi big 25 left 7sto.brickblg,105 hds, para to Rd Residence Noise 105 hds

62 Baiyunli 7-12 33 right 7sto.brickblg,108 hds, 20° of intsec angle to Rd. Residence Noise 108 hds

63 Baiyunli 4-6 28 right 7sto.brickblg, 63 hds, 200 of intsec angle to Rd Residence Noise 63 hdsa,

64 Baiyunli 1-3 29 right 7sto.brickbig,54hds, para to Rd Residence Noise 54 hds

O 65 Sixingli 29 right 7sto.brickblg, 54 hds, para to Rd Residence Noise 54 hds0co -

w 66 Hongboli 30 left 7sto.brickblg, 216 hds, para to Rd Residence Noise 72 hdscm

= 67 Cathay future children 3sto.brickbig, 14ds, 1 pre-schl cis, 45sts, each ds, Education Noise 8 class roomsv ~~~~~~art schl 25rgt98tcs, para to Rd

68 Qijain bIg 41 right 6sto.brickbig, 72 hds, para to Rd Residence Noise 72 hds

69 Hongboli 30 left 6sto.brickblg, 48hds 300 of intlsecangle to Rd Residence Noise 48 hds

70 Xinfengli 25 left 5sto.brickbig, 50 hds, para to Rd Residence Noise 50 hds

71 Hexi central primary 63 right 3sto.brickbig, 1Ocls, 400sts, 40tcs, 600 of intsec Education Noise 2 classroomsschl angle to Rd

3-21

File 2. Water Drainage Component EnvironmentalImpact Evaluation

4 Profile and Analysis4.1 ProfileTianjin's second World Loan Project - urban development and environmentincludes among others 3 components, in the water drainage sector, of pipelinenetwork, ShuanglinWWTP and Dagu sewage canal renovation. Besides, anew addition has been made of Hangu Yingcheng WWTP/Vuqing WWTP andTreated waster water use. The detailed composition of them is seen in fig. 4-1.

Nanbeicang (1's-o |phase) drainage(D5.CD FukangRd SouthzCD drainage0

CD

0

Li)~~~~~~0CD (X0

0

|ShuanglinWWTP, (cinc songjiang pump etc)|

* Wuqing urban WWTP|

9 f HanguYingcheng WWTP in Binhai Zonen |FShuanginWWT, shunclsn gjBicang pump retc)vr

Note: * New additions are not included in this evaluationFig. 4-1 Water Drainage Component Structure Map

4-1

4.1.1 How the project is related to the Haihe River Valley Water PollutionPreventive PlanIn August 1996, State Council promulgated 'Decision on a number ofProblems Regarding Environmental Protection" which proceeded to prioritizethe control of three rivers (Huaihe River, Liaohe River, Haihe River) and threelakes (Tai Lake, Chao Lake, Dian Lake) during the 9h and 10' 5-year planperiod.; and stipulated that the water quality of Haihe River should make adrastic change and that water quality of functional zones shall reach the statestandards. In June, 1996, state council formally approved "Haihe River ValleyWater Pollution Preventive Program", on that basis Tianjin MunicipalGovernment formulated "Water Pollution Preventive Program of TianjinMunicipality of Haihe River Valley" which provides for the control target ofCODxr total in 2000 to be within 199,100 tons, and the figure to be 149,500tons by 2010; other pollutants are also to be reduced by a certain proportion.The implementation of pipeline network under this project will reduce thedischarge amount of rainfall, waste water from some parts of Tianjin urbansectors. The completion of Shuanglin WWTP, Wuqing urban WWTP andHanguYingcheng WWTP will elevate the WWT rate of Tianjin of Haihe RiverValley, cut down the discharge of pollutants to Haihe River Valley, at the sametime the removal of sludge from Dagu sewage canal after renovation willdecrease the river bed released pollutants. The TVVW produced in Dongjiao,Shuanglin and Beicang recovery works shall be carried via pipes to the users,thus to effectively save the consumption of new water sources - a realizationof WW-resource conversion. And accordingly reduce the direct discharge ofpollutants.In short, the implementation of the project shall be conducive to theimplementation of 'Water Pollution Preventive Program of Tianjin Municipalityof Haihe River Valley" and make certain contribution to the control of HaiheRiver Valley.

4.1.2 The relation between the project and the Bohai Sea Blue WaterRestoration Program.Bohai Sea is Chinese closed offshore territorial seawaters that pose animportant strategic position in the political, economical and socialdevelopments. With the large quantity of pollutants dumped to the sea, theoffshore waters' pollution is continually augmenting and the water qualitycontinually worsening, ending in a serious damage of marine eco environment.The phenomenon of orderless, endless and payless development and theemphasis on development but the ignorance of protection has become moreand more prominent that has given rise to more serious environmentalproblems. Therefore, state council formulated "Bohai Sea Blue WaterRestoration Program" and Tianjin accordingly worked out its own 'Bohai Sea

4-2

Tianjin Blue Water Restoration Program".According to the Planning of Tianjin, by 2005, Tianjin's urban WWT rate shouldreach 80% (1.49million tons/day). The pollutants discharged from thecontrollable dispersed points and the water outlets to Tianjin sea area shall becut down to: COD,- 170,000 tons, inorganic nitrogen-1 9,400 tons, inorganicphosphorus - 880 tons and oils - 5.60 million tons.The completion of this project will enormously advance the goal of totalreduction of pollutants from Tianjin to sea. The WVVTPs when finished willenable Tianjin's WWT capacity to go up by 400,000tons/day, and lift the WWTrate to 62% and simultaneously decrease the amount of other pollutants intosea, very conducive to the "Bohai Sea Blue Water Restoration Program".

4.2 Conditions of Existing Works4.2.1 Pipeline networksFor historical reason, the original water drainage system consists of disordercross connection and chaotic layout of different systems from old town,concessions, and industries. After liberation, especially in recent years, due tothe persistent efforts by some departments in rational planning, uniformedlaying out in addition to continuous adjustments, a comparatively systematicwater drainage unity has basically taken into shape (incl. Beicang, zhaoguli,zhangguizhuang, xianyangRd Jiazhuangzi and shuanglin systems). See fig.4-2, although all systems have developed into preliminary scale, eachsystem has much to be desired in self supportive capacity. The Nanbeicangcomponent under this project is located north of urban districts, south of outerring Rd, within the bounds of Beichen district, belonging to Beicang DrainageSystem. Since there is no way of discharge for rainwater during flood time, thearea has become one of the main water trapping areas of Tianjin. This wasmade worse by the often-problematic pump stations and the impededpipelines leading to the mixing of rainwater and waste water during floodseason and the flowing untreated into Beiyun River. FukangRd component islocated in the southwest of Tianjin and within bounds of Nankai district belongsto XianyangRd Drainage System. The area has no rainwater system, andsewage drainage can not be called a system yet. The Nanjiaowai componentis located in the southeast of Tianjin within the bounds of Hexi Districtbelonging to Shuanglin Drainage System. There is no way out for rainwater,and the factories' WW flows direct to Chantai River, then to Nanweidi River,waiting for the arrival of flood time to run into Haihe River.

4.2.2 Dagu Sewage Canal RenovatioinThe canal has for many years been burdened with the mission toaccommodate all the waste water discharge from south of Haihe River inTianjin, it was out of repair and the water quality has become worse than classV, especially the bed sludge pollution is very serous. According to tentative

4-3

study of the bottom matters of the canal, the degree of the pollution in thesludge could run by light pollution, medium pollution and heavy pollution, thethree portions account respectively for 60%, 30% and 10%. The heavy metalchrome, mercury and arsenic contents in the outlet-to-sea nearby section inthe lower reaches are lower than the standard values of "Farming PurposedSilts Contained Pollutant Control Standard" maybe due to the tidal impact ofBohai Sea. But the content of heavy metal Zn and Ni are all above standardvalues, among which the highest value of Zn exceeds the standard by 3 timesand over while the highest value of Ni is above the standard by more than 60times. Also heavy metals Cu and Cd contents are seriously above standard insome sections.

4.3 Introduction of the intended new project4.3.1 Pipeline network constructionIn keeping with the Overall Planning of Tianjin City, and based on the principleof separation - rainwater diverted to nearest river and WW diverted to theintended WWTPs subjecting to recovery, Tianjin city is going to execute thisproject in order to improve the water quality of urban districts and the BohaiSea. The project scope and context of the three components under this projectare seen in fig. 4-1 and graph 4-3. and graph 4-11.

Fig. 4-1 Pipeline Network Construction General Table

Rainwater Sewage system

Item System Pump systemNo Item Name Water Water Pump station (new, River renovation

No Ppcollection Pip collection revamping) works(in) (hectare) (hectare)

Nanbeicang Build new TiedongRd Fengchen1 Nabworks 30585 753.52 19495 2209.12 ump stn, GaofengRd WV River

I____ ump stn. desiltingBuild new YingshuiRd WVV

2 FukangRd 26230 275 14485 1494 pump stn, Chongming Rdworks uump stn, and outer ringRd

pump stn.3 Nanjiaowai 32200 234 15708 234 DongtingRd pump stn.

4 Total 89015 1262.52 49688 3937.12

4-4

4-2 Tianjin drainage system map

r*., .eg; ; * ab;/ ~~~~~~~' ' ' s

r 7 ,

Co ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ :

I4-3 water collectionrange of Nanbeicang areawater drainage subproject

Nanbeicang water drainage subproject .is located within Beichen District- 'the northwestern part of Tianjin and ,

belongs to Beicang Drainage System.The rainwater works ranges up north *to 200m from the north of BeicangRd,. , '.

eastward to Beijing-shenyang railway, .-4' -. "

down south to 200m from the north of ,. ). '

NancangRd,and westward to BeiyunRv i with a total water collection area -, - - -

of 753.52 hectares.The constructionscope of waste water works extends upnorth to 200m from the north ofBeicangRd,eastward to Beijing-shenyangrailway,down south to NancangRd,andwestward to BeiyunRv with a total \ '-s-.coverage of 843.5 hecs.However,thewaste water collection area of thiswaste water project will be totaling .'-\'4 I2,209.12 hecs,northernmost at outer \ \ ''

ring road, easternmost at Beijing- N S

shenyang railway,southernmost at 1# ^t| . 1X <-Xv /f58/g

PujiRv,and westernmost at BeiyunRv.s -'j

Q- 19.3m'/S L

+;; 1'< 1~~~~~~~~~~~~~~~~~~~-1 I

. , + > | o 2 | Lg l l ~~~~~~~~~~~~~~~2 tt": 1:24000|

L ~~3 RIM: WAR

-4,~~~~~~~~~~~-

4-4 Ra s i a |! sbrj

4-4 Rainwater works scheme map of Nanbeicang area drainage subproject

g&~ KjE4 * 11 1 - - -- .-- -- -$f; 1i i s t

C -.

_ ; _ -_ dW-99 m _- d3 0Q0 1144_ -

-. - - rr - - - -

| > [ - t . 4, ~~~~~~~~~~~~ t%=~~1. 08m3 /s|

d1-----dlE - 5O920 dllOO-d1200-650

2WtP: 1:24000 F --

~~~~~ -^,- -t-

4-5 Nanbeicang area water drainage subproject shoeme map

4-6 water collection range of south-of-FekangRdwater drainage subproject.

j\t South-of-FekangRd water drainagesubproject is located within Nankai

TEl t J\g_Ls <st5___ FDistrict - the southwestern part ofi J1 I 4.A X .7 n Tianjin. Its water collection ranges(H ! ! l ;>8l.1t i up north to 150m south of FukangRd,

E ,'1 !11 M r I - ez u $221964t/down south to BinshuiRd andHuanhuzhongRd, westward to HongqunanRd,and eastward to WeijinnanRd with atotal area of 275 hecs. For the wastewater part within, it extends upnorth to 150m south of FukangRd,down south to BinshuiRd, ShuishangbeiRd,westward to HongqinanRd, eastward to

.t % t % * t -L&1 & $t t ~WeijinnanRd with a total collectionare of270hecs.

For the waste water part without, itinvoles the discharge of waste waterfrom west of Nankai University,Tiantuonan, Wangdingdi, Huayuan,Xihuayuan and Huayuan Industrial Park.After completion, the final servingrange of south-of-FukangRd waste water

it| ooU ~K1~ O -;; \ <f^S\ \ \system is about 1,494 hecs.

t--BZwFA -- 0 0 sl- -elES l¢fE < A 41300-00 800

* t"R 1:24000 > _ * ~~~~~~~~~~~ _\-_ Ii i . ,~~~TI

4-7 out-of-ukagRd ainate subrojct shem(ma

3 _0> | ~ ~ -_ _ _ _

4-8 South-of-FukangRd waste water works scheme map

4-9 Water collection range of Nanjialwai waterdrainage subproject

Nanjialwai water drainage subprojectis located in Hexi District - thesoutheastern part of Tianjin. Theconstruction scope of rainwater andwaste water components extends upnorth to NanweidiRv, down south tolOOm south of SanshuiRd, westward tothe rail extension of west of AHongzeRd, eastward to ChangtaiyinRvwith a total area of 234 hecs.

2. ItIJ ri X V.

1:24000

4-10 Dji&j1 dainaiI sUjec' s rimt wds sdie mop

s 1il - 13 U-

I ~ I -X a/ '

. = FIt { a,f/

- ~ l. l S.///~

L'~~~ K- - \*s^n '' I " lli t -'3.,

2 t j I ~~~~~~A'

,iiXl' t tt'JJ( 1:2400

4-11 1'ijia1li drairwe &tl[jet' S uste uter uds ~*3e Hg

I 2 ,P

r' 4/

-~~~~~~~~~~~~~~~~~~~~~~~~~~~I)' 11 I[ {/K-O LS : I ES'I.-[

A -j hji0 iE, .... .A t'.

Dagu sewage canal renovation subproject general plan position map

4.3.2 Dagu Sewage Canal Renovation WorksThe main parts of engineering scope comprise dredging, banking up dykes,protective lining, revamping of structures, rebuilding of pump stations etc. - 5parts. Details of each part are seen in fig. 4-2 and fig.-4-12.

No Names of Content Engineering amountConstruction

1 River Dredging Desilting and removal of some dry mud sludge: 1.783million m3

dry mud: 411 ,OOOm 3

2 Sludge dewatering Use mobile pressure filter, dewater the About 500,00M 3

sludge of 80% plus water contentFor banking up, farmland or greening

3 Sludge disposal filed, stacking nearby or buried in landfill,proper greening on both sides.

River protective River section is paved with flat stones only4 paving for slopes not bottom

Revamping of Culvert-pipe and siphon pipe building, the5 structures 3 culverts at Jizhuangzi River revamped

into a bridge

Project Pollutants Generation Flow Chart as shown in fig. 4-13 and 4-14

Foulsmell noise exhst noise

t t t t-- Near resdnt: -_1 Drdg undr flow Closed trspt

foul smellAbv stnd T

L. ~~~~~~~~~~~~~~~~~~~~~~~~~~burial

30 oo _filtration

'5 V - | /U o bankup, greening

,farming

.- ar from resident -_drdg no flow * Ordnry trspt

Fig 4-13 Dry sludge dredge and dispose sketch

4-5

foul smell noise exhaust gas foul smell noise

dred ngunderow closedlansport > concentrated dewaeng

dewatering

no need to expand river cross section and protective lining pavement

C foul smell noise foul smell noise noise exhaust gas falling out

need to expand river cross section dredging under no flw > dewatering > general btansport

and Drotecyive linina Davement

foul smell

sludge not up to standard landfill burial

filtrabon

-~. sludge conforming to standard - o banking up, .greening, .farming purpose

Fig 4-14 water sludge dredge and dispose sketch

4-6

4.3.3 Shuanglin-WWTPEngineering details are seen. in.fig 4-3 and graph 4-15, 4-16 and 4-17

Fig 4-3 WWTP Construction. ContextNo Item Unit Value1 size 10,000tons/day Near term20, long term302 Technology Bio-dephospht. nitrification3 Land occupied Hectare Near term'18.9, long term3l.54 Permanent use Hectare 195 Service area Hectare 27006 Service population 10,000 people 42.6

WW quantity7 produced in Tons/day 18.25 (2010w)

I service area

8 Supportive M 9640piplines

songjianRd pump Cubic meter/sec 1.4stn I_________ I___ I_______________

Project Pollutants Generation. Flow Chart is seen. in. fig 4-18.

The water quality at the inlet and outlet of WWTPAfter the completion. of the WWTP (201 0), the maximum of WWT capacity willreach 200,000ton/day with a ultimate goal of 300,000ton/day in. the long term.Then. the WW discharge will also be going up accordingly, the maximumamount of discharge is listed in-fig 4-5.

Fig 4-5 Shuanglin. Sew age River Pollutants Discharge Unit: ton/day

item Drai.syst. 2000 2010 Long term

WW 31404305 73000000 109500000Suspended matter 8251 19142 28713

COD 13556 31450 47175Bio OD 4344 10078 15117

Volatile phenol 7.851 18.21 27.32Cyanide 3.360 7.795 11.693Arsenic 0.163 0.378 0.567

Total chrome 2.135 4.953 7.430Cadmium 0.123 0.285 0.428mercury 0.009 0.021 0.031NH3-N 1140.199 2650.418 3975.627

TP 99.131 230.432 345.648

4-7

.. T->:,-r. §,~-- < * _e* ;'A- 000

_-- -:2 3_zZ : , - . --- -.......... . --,

Fig.4-15 Tianjin Shuanglin WWTP geographical sketch map

~~~~~~~~~~~~~~402_ ____0___ - 0_2_

104-1 105-1 (08-I 108-2 06 405 1

201-1l 0106.1 [ Scale 1:2500

t 104-2 ) 105-2 ( 108-3 ) t 108-4 [)] 7 101 water inlet pump house

/ /i2~J / 1102 whirling detritus pit103 water distribution gauging trough

102 17 . 104 first sediment pool

E7 Tl1h107 501 404 Li10S bio reaction poolM/ 8 oo > nln 106 back-flow and residue sludge

pump well107 blower house

[f \ /108 second sediment pool

( 104-3 ) 105-3 ( 108-5 ) ( 108-6 ) 109-1 109 contact pit105-3 ilo~~~~~~~I I 1 chemical dephosphorization]

7] /I i ichlorinator room201-2 E U o 11109-2 1110 201 chloride addition

201-2 [2[ U 202 first settled sludge pump house106 - LJ ~~~~~~~~~~~~~203 sludge xontrol room106 1 204 digestion pool

104-4 105-4 108-7 108-8 111 205 sludge dewatering house

206 sludge drying cell207 transport garage of sludge cakes301 methane tank302 methane torch

2 0=2 401 bicycles shelter2305-1 > l l 402 janitor room

403 boiler and shower room2F31< l [E1m7kMX l 404 mechanic repair shop and warehouse

E] [:1 | . l405 office complex0 0 0 [206]. ~207 406 canteen

407 garage

* 302 204-1 204-2 204 3 501 outside (power) transformer and:________________________________________________ _ __302_204-_1_204-2_204-3 switchboard room

Fig.4-16 Tianjin Shuanglin WWTP bio-dephosphorization and nitrification process plan layout map

Fig.4-17 Tianjin Shuanglin WWTP technology flow chart

r_________J ~ ….1~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~t.

r - Tc - - - -

L *tt ika1 . (OMAW)

.tmi r# __

noise fuel waste

foul smell noise

A. -.blower roomE------------- E chonefallen chne adding

F mud~~~~~~~~~~dr u

suwater inlet pump s d tasot !, whirhmn d sedigedietiontct pool >

water t b houseinlet < coarse gril gauging pump second sediment

Fig4-1 Sunoise | first sediment Tcn g F

grille refuse V\ \J 4

grille refuise

|firrst flallen mLud Dptump /

I Sludge pumpsI

filtrations Supematant filtrations

. \ <\ ~~~~~~~~~~~~~~~~post chemicalsupematant dephosphoriztion

foul smell Bcovery system

sludge condensing~~~~~ sludge drying | >

V dry mud

sludge mixingpo __ siudge dewtrna transport

| sludge digesti n control | sw eg |iuge dgestion pool |i

| circulaUing sludge

hot water 1

|desulphurization fuel exhaust >,, sludge gas|

1\ | sewage gas t | ~~~~~torch j

water degsbie

9/way to blower house

Fig4-18 Shuanglin. WWTP Treatment Technology Flow

The inlet water quality is determined based on. the survey on- the key pollutantsources in. 2000 within- Shuanglin. Drainage System, and the results of wateranalyses conducted from Jan. 1999 to Apr 2001, in. reference to the data frompast years' monitoring in. Jizhuangzi Drianage System. The outlet water of theWWTP should be able to satisfy the class 2 criteria of GB8978-1996 "WasteWater Discharge Standard". In. view of the farmland irrigation, and the outletwater being most purposed for field irrigation, adjustment should be made in.loosen. the limit to the indexes of nitrogen. and phosphorus, which could bothlower the WWT operational cost and add up to the fertilizing role. According tothe "Farmland Irrigation. Water Quality Standard" (GB5084-92) that set forththe demand for the quality of water used for dry farming and vegetable field,the in. and outlet water quality of Shuanglin.WWTP is seen. as in.fig 4-6

Fig. 4-6 Shuanglin.WWTP Inlet and Outlet Water Indexesinlet Outlet Outlet during farm

irrigation

pH 7-8 7-9 5.5-8.5

BOD5 160mgA s30mg/l s80mg/l

SS 280mgA S30mg/l S1 00mg/I

COD 430mgA S120mgA S1 50mg/I

NH3-N 41 mg/I •25mg/i s30mg/l

TP 3.5mg/l S1.0mg/I s1 Omg/l

Fig 4-7 WWTP Main. Pollutants Removal Rate

Item BOD COD SS NH3-N TP

Inlet water quality 160 430 280 41 3.5(mg/L) _ _ _ _ _

Out let water quality 30 120 30 25 1.0(m g/L )__ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

Removal rate (%) 81 72 89 39 71

4-9

4.4 Introduction of investments in the intended newcomponents. (to be seen in fig 4-4)

fig 4-4 Investment Distribution.on. the New ComponentsItem Name Estimated investment

Nanbeicang (1 st phast) drainage works 39132.11o X South-of-FukangRd Drainage works 19952.79a) 3 Nanjiaowai Drainage works 17125.39i5 a Subtotal 76210.28

a) Dagu Sewage Canal Renovationr Jizhuangzi sewage canal renovation

X . Xianfeng canal renovationa O Revamping of struntures and pumps stnsc Subtotal 38531.28

WWTP construction 34000C r Sludge disposal cost 16000

X M Installation of pipes complete with it 9000Subtotalt. 59000

Total 173741.56

4.5 Project pollutant source analysis

4.5.1 Air Pollutant discharge source analysisThe sources of Air Pollutants Discharge are seen. in.fig 4-8

Fig 4-8 Air Pollutants Source Analysis TableItem name Construction period Operational periodPipelinenetwork Construction flying dust Foul smell, (disorderly discharge produced fromconstruct- Cosrcinfyn utpump stationion

Dagu 1.foul smell during river bedcanal desilting, dewatering, Same as aboverenovation transport, disposal etc.2. running vehicles' flying dust.

1. Foul smell, (disorderly discharge produced frominlet grille and the sludge disposal site - mainlysludge dewatering, sludge control and stacking

.n Flying dust, the increase o 2. boiler smoke, (a. heating and baths are provided

\NWTP and TCH) due to exhaust gas by a oil-fueled boiler emitting mainly TSP and SO2,of vehicles, but the fuel belong to clean fuels, pollutant release

is very small.b. the sewage gas boiler for heating sludge duringdigestion produces chiefly TSP and SO2 of littleamount due to that fact that the gas is clean fuel)

4-10

4.5.2 Water Pollutants discharge analysisWater pollutants discharge sources are seen. in.fig 4-9

Fig 4-9 Water Pollutants Sources Analysis TableItem name Construction period Operational period

Pipeline Life WW, engineering WW Different WWs collected in the system area

1.pore water f mDagu mechanical dewateringSewage 2. filtrated WW from banking Released WWs from pump stns andcanal up using sludge. WWTPsrenovation 3. life WW

, 4. engineering WW.

Shuanglin life WWShuanglin engineerig Treated WW dischargedWWTP Iengineering WW

4.5.3 Noise release analysisThe noise discharge sources are seen.in.fig 4-10

Fig 4-10 Noise Pollution. Sources Analysis TableItem Name Construction period Operational period

Noise chiefly comes frommachines during construction

Pipeline like driller, compressors, Noise comes from the pump runningconstruction rollers etc. and running vhcles

and demolition of blgs androad breaking operations

Noise from mechanical transmission such

Dagu Canal as from pump house. Survey of similarRenoatuina Same as above machines shows: water pump about;Renovation

85-95dB(A); electric motor about 75-85dB(A); blower about 95-105dB(A)Noise from mechanical transmission suchas from sludge pump, dewatering

Shuanglin machine, inlet pump, blowers, Survey ofWWTP Same as above similar machines shows: water pump

about; 85-95dB(A); electric motor about75 - 85dB(A); blower about 95 -

105dB(A)85-95dB(A).

4-11

4.5.4 Solid waste discharge analysisSolid waste discharge sources are see in fig 4-12

Fig 4-12 Solid Waste Pollutant Sources Analysis TableItem name Construction period Operational period

I.Construction spoil,(general solid waste).

2. river sludge ( heavy Grille refuse and pipe silting (generalPipeline network meatas incl. pH, Cd, Hg, solid waster)

Pb, Cr, As, Cu. Zn, Niand DDT and benzexetc. )

Dagu canal Same as above River sludge needs periodic desilting.renovation

1.grille refuse: about 8m3/d(watercontent about 85%)

Shuanglin Construction spoil and 2. fallen sediment: about 6tWd(waterWWNTP garbage content about 60%)

3.dry mud: about30.4tVd(about 80%)

4.6 Pollutants Source-strength analysis4.6.1 Surface water pollutants source-strength analysis

Pipeline Networks Construction(1) The sum-up of interceptions of WW and pollutants into Haihe River aftercompletion of the project.

After completion of the project, rain and waste water shall be separated,the total of entrapment of the WW and pollutants is seen in fig 4-13

Fig 4-13 The discharge amount of WW and pollutants after interception(unit: water-104 t/a, Cr. Cd. Hgkg/a and others-t/a)

Water SP CODcr BIO-OD Volatile cyanide Ammoniaquantty phenol nitrogen

2532.16 1815.9 2177.2 475.5 106.5

Oils phosporus Zn Ni cadmium mercury chrome

657.3 25.0 5.9 16.55 0.53 0.04 9.35

4-12

(2) Prediction- of discharged rain. water qualityAfter completion. of the project, the project covered (rainwater collection area)sphere shall get rid of the sight that rainwater and WW jointly mixed runninginto Fengchan. River, Fukang River, Nanweidi River and further into HaiheRiver. Th end-pump stationTof JianguoRd line is selected as post-projectpump station. outlet water quality, see fig 4-14.Note: This evaluation, period is non. flood season, so the historical data of thepump station. in. recent years are employed.

Fig 4-14 Rain.Water at the Pump Stn. Outlet Prediction. (unit: mg/L)Item SS KMN BOD5 NH4-N

Surface classlV standard 150 10 6.0 1.0Pump stn dischargePumpstn ischrge107.5 5.80 6.64 0.37

concentration prediction

WWTP worksWWTP water quality details are seen. in. "4.4 WWTP Inlet and Outlet WaterQuality".4.6.2 Air Pollutants Sources-strength analysisDrainage pump station's foul smell source-strength analysisThrough the site monitoring of the foul smell of the comparable WW pumpstations, (it is MiyunRd WW pump station. -- designed capacity =Q=1 0m3 /s,

the monitoring time is 26h Jan, 2002, the monitored operational flow isQ=2m3/s, wind direction.WWN, speed 2.2mls, the foul smell generation. sourceis outlet water pool) the relative data are seen. in.fig 4-15.

Fig 4-15 Comparable WW Pump Station. Foul Smell Monitored Data(Unit: mg/m

3 )

Foul smell Position of monitoring stance Factory

matter windwardlOm downwidlOm Downwind 30m boundarystandardolammonia 0.084 0.242 0.170 1.0

thiocyanogen 0.003 0.034 0.018 0.0320 (no

concentration <<10 22 <10 qualitativeof foul smell outline)

Note: (1) 'Foul Smell Pollutants Discharge Criteria" (DB12/-059-95) specifies within-bound control

standard for new, expanded or revamped ones.

WWTP foul smell source-strength analysisThis evaluation. adopts the analogy approach to estimate the source strengthof foul smell. The estimates obtained of foul smell discharge intensity in. thesludge dewatering machine room adopts analogy between. the available dataof Jizhuangzi WWTP and the Treated amount. The result is seen.as in.fig 4-16

4-13

Fig 4-16 Foul Smell Source StrengthDischarge item NH3 H2S Foul smellsource itemINH3____ concentration

Concentration 0.16 0.19 5400(timeGrille and Mg/M3 0aeration Air discharge 2.5m3 /h.- i'x24256=60640 m3/hsedim ent m3/h _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _Discharge rate 0.00970 0.01152

kg/h l

Concentraton 1.03 6.34 1 0000(times)

Sludge dewater Air discharge 2000 m3/hX6=12000 m3/hhouse m3/h

Discharge rate 0.012 0.076kg/h I I

Boiler discharge air pollution source-strength analysisShuanglin-WWTP intends to employ 2off diesel fuelled boilers (one stands by),both are 400,000kcal/hr, about 2t/h. the average of cal value of the diesel is10000cal/kg, specific gravity is 0.81-0.86t/m 3, sulphide content is 0.25-0.5%.According to the analogy study, a 2t/h boiler consumes about 104kg//h, smokedischarge is 2600Nm3/h, SO2 discharge is 1.04/kg/h. Upon. computation, thedischarge concentration.of mail pollutants in the smoke is TSP-89mg/Nm 3, SO2

- 400mg/Nm3.

4.6.3 Noise pollution, source-strength analysisNoise out of mechanical transmission. are mainiy tracked down. to theequipments of WWTP and to pump houses such as sludge pump, WW pump,rotating brush, grit removers and blowers etc as well as the sludge pumps in.the planned WW pump stations. According to the study of similar equipmentnoise source, the source-strength of noise generating equipments are asfollows:

Fig 4-17 Noise Strencth Source - StrengthName of Water pump Electric motor blower

equipment

Source strenght 85-95 75-85 -95--105

d B (A ) I _ _ _ _ _I_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

4.6.4 Solid Waste Analysis

The solid waste produced from the project is largely sludge, the detatiledanalysis of the sludge is seen. in. Chapter 10.

4-14

4.7 Pollutant Reduction Quantitative Analysispipeline network construction

Reduced pollutants quantity after the completion of the project is seen in fig4-18.

Fig 4-18 The Reduced Pollutants Quantity after the Completion of theroject (unit: T/a)

Item Presents pollutant Post-project Quantity Reductiondischarge pollutant discharge reduced percentage

SS 1815.9 270.9 1545.0 85.08

KMN 870.9 14.6 856.3 98.32

BOD 5 475.5 16.7 458.8 96.49

NH4-N 106.5 0.9 105.6 99.15

Note: computation is made per KMN = CODc, /2.5

Shuanglin WWTPThe pollutants reduction amounts after completion are listed in fig 4-19.

Fig 4-19 Shuanglin System Main Pollutants Reduction Amounts tVa

Item BOD COD SS NH3-N TP

Removal rate (%) 81 72 89 39 71

Near term 8163.18 22644 17036.38 1033.66 163.61reductionLong term 12244.77 33966 25554.57 1550.49 245.41reduction

4-15

5. Alternatives

5.1 Site selection AlternativeBased on the feasibility study of the drainage components under this projectand on the engineering analysis of the project as well as the site inspections, acomparison has been made of the all the site alternatives of the subprojects inlight of environmental protection. Details of which are seen in fig 5-1

With regard to the site selection, a special explanation should be made that asthere are some major environmental impacts within the recommendations ofthe designing organizations, the evaluators singled out these problems andtimely consulted the project owner and the relating designers to conductanother on-the-spot survey and other jobs for YingshuiRd pump stn underShuanglin WVVTP and pipeline networks. This has led to the negation of theformer recommendation and in stead, turned to the substitution whichgenerates a minor environmental impact. Although it increased the burden ofevaluations and lengthened the time, it fully demonstrated the spirit of WB thatenvironmental evaluation should be part of the whole process and that theenvironmental evaluation has played its full part.Major revisions and reasons for the site election:

Shuanglin WWTP:The site survey shows that the designer - recommended is located at a point100m from Nanmaji Village and Housanhe Village of Shuanggang Town, andwith no space for the 2nd phase expansion. The particular notable is that thereis a need of setting a 300m of protective distance to withstand the impact offoul smell produced in WWTP on the surrounding environment according tothe comparative data. The selected site can not meet all the demands onprotective distance on the part of WWTP, should they be met, it would entailrelocations of villagers which might touch off non-voluntary migration.Therefore, the recommended site is not environmentally feasible.While the substitution being relatively farther from environmental sensitivetargets, could satisfy the environmental demands. Only that it has a longerdistance from outer ring road which will build up the cost for pipelineextensions.The recommendation of the designer allows only narrow site, this not onlyconstrain the future expansion and development of WWTP but also fail to meetthe demands on the needed protective distance. Hence from the views of bothdevelopment and environment protection, the recommendation is inferior tothe substitution although the former still has some advantage in the use ofTWW for irrigation. Comprehensively, this evaluation believes the intended siteof this subproject is not environmentally feasible, the substitution should bemade the final site (the comparison of the two sites is seen in fig 5-1)

5-1

Fig 5-1 Master Table of Site Selection Alternativesfor All the Drainage Component

Altemative comparison

Item name Alt. Content

favorable unfavorabel

1 divided by Fengchan River, service area falls into S 1. Fengchan Rv is not involved, noo and N two systems. desilting problems.ni 2. along the SN sides of Beijing- Tianjin Rd, 1.the need of building 2kms of square culvert,

Xc GangfengRd and Chao- yangRd are all laid with mains,a) totaling 9.9km. !~~~~~~~~~~~~~~~~eading to much relocation duet to many existingtotaling 9.9km.idutes

c E 3. two square culverts are build along the N side of 2bdustries.fengchan River, Rainwater is supposed to flow via 3 3. land occupation tos accommodateeth

2 c > . newly built cross-river pipes past the square culverts7V . inopmst.construction of a new pump stn.c_ Q X into pump stn.

8 E 4. build a new pump stn at the side of Beiyun Rv and Nof Fengchan Rv, (Q =19.33'/s), occupy 10,000m2

sQ -8 O 1. desilt 3km of FengchanRv, protective lining of banks 1. rainwater flows into nearest river, 1. involving Feng- chanRv desilting of large2.dvebyFghnRe,srcaraaland greening. pursuant to planning principles. quantity, and the disposal of the sludge.

a) 'i .' o 2. divided by Fengchan River, service area falls into S 2 renovation of former pump stns saves 2.occupy some land for new adjustable pump stn._ z rr .g and N two systems engineering work. to be built.a. > 3. along the S&N sides of Beijing- Tianjin Rd, 3. adjusting pumps could control rivera. GangfengRd and Chao- yangRd are all laid with mains, levels to ensure rainwater running of

. totaling 9.9km. each has its own outlet into gravity into river.e FengchanRv. 4. improve the environment and ensure_ 4. renovate the farming pump stn at the intlsect. water quality.

Between BeiyunRv and FengchanRv (Q=3m3/s),1000m2 land occupation.

5-2

1. renovate former 2 WW pump stns (shunyiRd stn and 1. renovate former pump stns. Create 1. a little complica- ted for two pump stns runningBeicangRd stn), the 2 stns running in series little additional environmental impact. in series connection, inconvenient ofconnection. management.2.along NancangRd, GaofengRd, ChaoyangRd and 2.along Chaoyang- Rd (under Planning) pipes are

r NanbeicangRd WW mains are laid of total 11.2km, laid, also need to demolish some sections ofE outlet at the converging well prior to Beicang WvVTP. railways and plant blgs of two sides, conceming a

E big engineering amount.0

E1. call off former 2 pump stns (Shun YinRd and 1. set up a pump stn to discharge WW 1. affect the trees in Beicang nursery of trees.BeicangRd stns), build a new vWW pump stn through one lift to save energy and 2. the newly intended pump stn will cause some(Q=1.08m3/s, occupying 2,000m2 ). simplify the management. environm- tal impacts.

_ 2.Ww mains of 9.5km are laid along GaofengRd, 2.pipe laying along the existing Rd.' BeicangRd, outlet water discharged into the confluent could acquire less land and require lessN well prior to Beicang WWTP. mains to be laid.

15

_

5-3

1. delimited by Water Park, it falls into two subdivisions 1 .Outlet water flows into nearest river. 1. build two new pump stns, that demand bigo of E and W. amount of construction, lots of investment and is. 2. mains of E subdivision are laid on Shuishangdong hard to manage.c Rd, Wejinnan Rd, ShuishangBei Rd. water to be lifted

a) E by an outlet pump stn (a new one Q=4.lm3/s, occupyn E 1,500m2) and discharged into WeijinRv.

3. mains of W subdivision are laid on ShuishangxiRd,ni YingshuiRd, Chong mingRd to be lifted by a new pump

dm stn (Q=6.4m3/s, occupy 2,500m2 into Fukang Rv.ni

3 _ 1. pipelines are to be laid by subdivisions same as Altl. 1. build 1 new pump stn, which entails 1. deeper burial of pipelines.re .2 2. build a new pump stn for both E and W stns small engineering quantity, small inve-

., (Q=10.5m3/s and occupy 3,00m2), to allow water stment, easy management, lowD flow into the nearest Fukang Rv. operational cost.

2. less land needed3. reduce one water outlet line.

1. within the construction range, the mains are laid on 1. collect nearby WW and discharge 1. the YingshuiRd pump stn intended to be built.9 ShuishangbeiRd, ChongmingRd and ShuishangxiRd, blank area's WW, which is favorable to new is too close to the environ. target not to have

o X outlet water to be lifted via Yingshue Rd pump stn (new the renovation of drainage system. some impact.c one Q=0.583/s, occupy 1,000m3) and discharged. 2. outer ringRd pump stn affects the innerE 2. discharge mains are laid on YingshueRd, and greening belt of the Rd being planned.

mad E connected on the way with FukangRd pump stn andU_ Wangdingdi pump stn where it is pumped out and via

I- outer ringRd pump stn (a new one Q=2.56m3/s, occupy.' 2,000m2) which lift and discharge it into XianyangRd

E - WWVTP.1. pipe laying same as in Altl. 1. same as above. 1. need new acquisition of land.2. relocation of the intended Yingsh- uiRd pump stn, to 2. avoid the impact on the environment-

' the SW corner green spot at the intsct between al targets0 HongqunanRd and YingshuiRd. 3. without any effect on the planned

3. outringRd pump stn shuns the inner green belt of green belt..j outer ring Rd-being planned.

_(0

5-4

> 1. N-of-ZhujianRd pipelines are laid on DongtingRd. 1. smaller invest- ment. 1. need desilting of ChangtaiyinRv, not= HeyanRd, Nujiang Rd, DongjiangRd and YanfengRd 2. pumps' group could be phase conforming to the backfilling of the Rv and'3 offatkes are connected with the mains and the water to implemented. the realization of DongtingRd being

o 8 be lifted via DongtingRd (new Q=9.135m3/s, occupy planned.; .'- 3 3,000m2) and discharged into NanweideRv. 2. if S-of-Zhujiiang Rd WW is diverted

3 2. S-of-ZhujiiangRd rainwater pipes incl those of into ChantaiyinRv, there will be possibleC ZhujiiangRd and YanshuiRd are discharged direct into pondings.

_ ChangtaiyinRv (desilting needed).> 1. mains are laid on DongtingRd. 1. conform to thd overall urban planning of 1. need additional fund for realizat- ion ofi> 2 2. HeyanRd, NujiangRd, Dongjiang Rd, YanfengRd, backfilling Changtai Rv and realization of the planned Rd and renovat- ion of3 F3 ZhujiangRd and YanshuRd offlakes are connected with DongtingRd. ChangtaiRv

c the mains, via DongtingRd pump stn (newz (D cJ Q=9.135m3/s, occupy 3,000m2) and be lifted into2. . Nanweidi Rv.

no 2. backfill ChantaiyinRv, and at the same time effect the.2. planned Dong-ting Rd.

- B 1. zero scheme. no investment. 1. ChangtaiRv is now seriously polluted indire need of renovation.

3 2 2. no outlet for WVv in the service area, afterthe completion of rainwater works, rainwaterand WW are still mixed up to be discharged.

-_ 1. mains are laid on DongtingRd. 1. backfilling of ChangtaiRv and construction 1. need additional fund for realizat- ion ofi. >3 i 2. HeyanRd, NujiangRd, Dongjiang Rd, YanfengRd, of planned Dongting Rd conform to urban the planned Rd and renovat- ion of

ZhujiangRd and YanshuRd offlakes are connected with overall planning. ChangtaiRvCD a. the mains, N-to-S, water discharged into SongjiangRd 2. ChangtaiRv badly polluted is in dire need

. pump stn (to be built). of reno- vation.'. 3. backfill ChangtaiRv and realize the plannedo DongtingRd.

5-5

Dagu sewage canal is 1. beneficial to regional eco envi- ronmental improve- ment.o 6T.47km Jizhuangzi sewage 2. no impact on water quality of lower reaches of HaiheRv.I canal is 3.67km, and Xianfeng 3. favorable to urban initial draining.

canal is 12.5km, totaling 4. less land used.E 83.64km. 5. less investment.E

Q _8o

_- Jugezhuang pump stn of 1. favorable to the improvement of regional eco 1. negative impact on water quality of lower reaches of Haihe.09 Dagu sewage canal is environment. 2. bigger land needed.C c 33.7km, Jizhuangzi sewage 2. favorable to the urban initial drainage. 3. bigger investment, too.

r _ canal is 3.67km and need toC . open a new sewage canal of

V 13.09km totaling 63.23km.

a)

in Add the new drainage river in 1. favorable to the improvement of regional eco 1. negative impact on water quality of lower reaches of Haihe.Alt2 onto the basis of Alt1. environment. 2. bigger land needed.

c] total: 96.73km 2. favorable to the urban initial drainage. 3. bigger investment, too.

<0

At the intersection between Li- 1. at the edge of city, little impact on urban environment. 1. too near Housan- he village and Nan- maji village to satisfyc shuang Rd and Xianfeng 2.the site's north against LishuangRd and easy of the required protective distance under this project..Q canal, West of Xianfeng canal, transport. 2. the development space of the locality is confined, without

X X 2.1km off outer ring Rd. 3. near XianfengRv, easy for the disposal of TvWW. reserved land for long term development, thus unfavorable to4. near outer ring Rd, long outlet water course available for future expansion.

___________ _ firrigation of a big area. 3. to satisfy satisfy the required protective distance, need torelocate some people and to increase cost for the control of foul

____________R________ sm ell.X - 2.1km to south of thb recom- 1. spacious and far from sensitive targets, favorable to the 1. far from roads, transport inconve- nient.

s mended site, at the west side expansion of WWTP. 2. need additional outer supportive facilities, which add to thev of Xianfeng Rv and 4.2km off 2. no relocations or migrations needed. initial cost.

outer ring Rd. 3. far from outer ring Rd, outlet water not easy to be used forirrigation.

Note: Alternatives marked with 'recommendation" are all the schemes recommended by the designing organization.

5-6

Pipeline networksBased on the predictions and evaluations in the evaluation report of pumpstns' foul smell, the designer-recommended YingshuiRd WN pump stn siteunder FukangRd (WW) works is too close to the residential area not to bring(when operational) serious environmental impact (noise and foul smell) to theinhabitants and businesses nearby; thus it has to be reselected uponconsultation between the evaluator, owner and designer, the new site must berelatively far away form residential area, and with some measures adopted, itcould meet the inhabitants' desire for a good living environment (thecomparison between the two selections are seen in fig 5-2.

5.2 The analysis of the substitution for the WWT technologyShuanglin WWTP has through screening selected "Bio-dephosphorization-nitration Technology" as the intended scheme of WWT technology withOxidization Ditch (Aftr) as the comparison draft.The two alternatives' comparison in investment, operational cost, energyconsumption, land occupation, sludge stability and outlet water quality areseen in fig 5-2.Through comparison, Altl (intended) is superior to Alt2 (substitution) in thefileds of civil engineering, operational cost, power consumption, and landoccupation etc. The intended scheme is appropriate

5.3 Substitution alternative for disposal of sludge of WWTP and pumpstations.The project feasibility study proposes effective measures of disposal of sludgeproduced in the long operation of WWTP and pump stns whereby the sludge ofpump stns is supposed to be carried to WWTP to be disposed together withthe sludge of WWTP. The intended alternative for disposal of sludge in WWTPis sanitary burial in Guangzhuang Garbage landfill (being planned). As it takestime, the sludge in WWTP may be found nowhere to go during the initialoperational period prior to the completion of the landfill. Therefore, thealternative is not regarded as complete.

As no substitution is proposed in the study, this evaluation puts forward twocompromise substitutions for the solution of finding a way for the sludge duringthe initial period. One is carry the sludge to the sludge landfill of desilting site ofDagu sewage canal; the other is to apply it to soil improvement in HaifangBoulevard Forestation Project; prior to the completion of the plannedgarbage landfill.Comparison of the two alternatives is seen in fig 5-3

5-7

~~._ w .Ar - . 'r o ^_ - _ zF :

t \ T _. ' u =Z< ~~~~~~~~~~~~~.

5-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~A

T"* ~ ~ ~ ~ ~ -

- ! -\ ; and watr c t r st map

_.,.* -, - \fV

* ~~~' ~tw j : 7.

Fig. 5-1 Tianjin Shuanglin WWTP geographical position, water conveyance linesand water collect ion range sketch map

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ~ ~ ~~~~~~~~30 . 1

VI id~~~~~~~I h

ra~~i rA A A

qw,o

. . . .... .... ... . .. ... .... .

- : - ' ''

~~ 3JZ:

i:t

* 5-2 _it7

I ~ _ 5- _C*LNt

Fig 5-2 Shuanglin WVVTP Waste Water Treatment ComparisonAltematve Altl (intended) Alt2 (substitution)Briefing of Anaerobic Bio-dephosphorzation- Anaerobic - Oxidization

Techmoloy nitrabon ditchprocess

. ~~~~~~~~1. organics removal rate1.organics removal rate secured. 1r csrem2. after nitration, ammonia and nitrogen securedcould meet outlet water criteria. .atrntain moi

Outlet water 3. st placed n i. and nitrogen could meetquality de .otrisatio e oe by outlet water criteria.

depmophorizationsphoiztin ue 3. bio-dephosphorizationchemical dephosphorization, outet could meet standard.water quality could meet standard.

Sludge mild temperature anaerobic Sludge is basically stableSludge stability digestion after delayed aeration.

Total investment 34230.85 34884.181 0,OO0RMB

Land occupabon 18.9 24.5(hectare)

Unite operationcost (RMB/M 3) 0.40 0.54

Installed capacity 4292 6197(kW)

Unit powerconsumption 0.207 0.407

(kW h/T)

Fig 5-3 Comparison of Alternatives for Sludge Disposal at the beginning ofWWTPAlternat- Comparison

ive Merit Demerit

Sent to Dagu Canal 1.short distance(only 5km) easy of Only oneSanitary desilting site for transportation year

burial sanitary landfill 2. conforming to the sanitary burial availablestandard, receipt of the sludge will notcause second pollution.

As soil for protectve 1. the project is expected to be finished longFor forestat- ion of in 2010, longer period available. distance of

forrest- Haifang Bvd of 2. used for forestation soil, no entering transporta-

ation Binhai New Area into food chain, no second pollution. tion.3. tuming waster into the useful, beingin the principle of all-round utilization. f

5-8

This evaluation is inclined towards forestation scheme upon syntheticdeliberation.

5.2 Comparison of sustitutional alternatives of the sludge landfill burialsite for Dagu sewage canal renovation works

The sludge in the Dagu canal renovation works is mainly the desilted sludgec during construct n period. Through on-the-site survey and investigation along

the canal, 5 sites are tentatively selected for landfill burial sites, they areLubeikou, JugeZhuang, BaiwanRd, Zhouxinzhuang and Gegu. The basicconditions of the 5 sites are seen in fig 5-4.

5-9

Fig 5-4 Conditions of Sludge Intended Landfill Burial Sites

Name Position Dagu River Pile Land use status Transport Sensitive targets(Km+m) Lnusstus distance(Krn)

East side of Jinda Former earthLubeikou steel pipe Co, Lubei- 14+245 taking pit of the 4-41 2km from Dagu canal, 10m from from Jinxi

kou, Xiqing district. kiln, now a fishing Guangming Foundry Goods Factory.kou, Xiqing district,pond

Jugezh- Dahanzhuang Bridck Brick kiln earth 1km from Dagu canal and no sensitive targetsuang kiln Jinnan district. 29+270 taking pit, now 19-26 within.

waste land _______________________

15m from HongniRv which is the water conveyingcourse for diverting Yellow river to Tianjin, also thewater conveying course for east line of

The confluent point DIVERSION OF SOUTHER WATER TO THEBaiwanRd between HongniRv 33+480 farmland 23-21 NORTH PROJECT, and is designated as the

and XianfengRv backup water source for Tianjin in the 10h 5-yearplanning over water pollution prevention of Tianjinmunicipality. Desilting has been finished andbelong to key protective target.

Zhouxin- Zhouxinzhunag Pump 40+540 farmland 30-14 At the river bank of Dagu canal, 50m from thezhuang stn. highway under construction.

Gegu Tianjin Bohai Alloy Co 49+670 farmland 39-5.32 At the river bank of Dagu canal, 200m from TiajinI I I I I ~~~~~~~~~~~~~~~~Bohai Iron Works.

Note: Transport distance means the Transport distance to burial sites in. two inverse directions,see the following graph

|4 Sludge transport Range z

0+0 10+560 14+245 29+270 33+480 40+540 49+670 54+993 67+470

Xianmi Outer ring lubeikou jugezhuang Baiwan zhouxinzhuang gegu xinchen dagukoConflunt RD NO 4 stn roadPoint

5-10

Taking land use status, transport distance and sensitive targets as factors ofevaluation factors and assessing the merits and demerits of the intended sites,we have got the results seen in fig 5-5.

Fig 5-5 Intended Sites Comparison and Analysis

Lubeikou Jugezhuang BaiwanRd Zhouxin- Gegizhuang

Land use status 2 3 0 0 0

Sludge transpt. 1 2 2 1 1

Sensitive trgt. 0 3 0 0 0

3 8 2 1 1Note: '3" stands for very appropriate, "2" stands for fairly appropriate, "1" stands for notquite appropnate, while "0" stands for inappropriate.

The results of the comparison indicate that of the 5 intended sites, Jugezhuangis most appropriate because of:(1) Of the 4 sties, 3 needs occupation of farmland, which is not compatible withthe basic principles of the People's Republic of China over farmland protection.For the purpose of farmland protection, BaiwanRd, Zhouxinzhuang and Geguare all inappropriate. Since left two sites - Lubeikou and Jugezhuang are bothformer earth pit of brick kilns and categorized as non-farmland. In furtherdeliberation of the fact that Lubeikou is now being used as fishing pond whileJugezhuang is still deserted now. So Jugezhuang is most ideal with Lubeikoucoming second.(2) If transport distance is the only consideration without respect to farmlandoccupation factors, we could choose 2-3 sites along the banks of Dagu canalin order to cut down the transport distance, alleviate the exhaust gas, trafficnoise and flying dust from the sludge transport, relieve the traffic volumeincrease and the pollution out of fallout of sludge during transport.,preconditioned above, Jugezhuang site at middle sector of Dagu canal andBaiwangRd stie at the lower reaches of XianfengRv and 2km from mid sectorof Dagu canal are most appropriate.(3) The impact on the sensitive targets are also one of main considerationsover site selection. Only Jugezhuang of the 5 sites is free withing 1km of thesite of villages, schools, breeding farms and portable water sources. While theremaining 4 all have sensitive targets on which potential pollution may bebearing. Thus saying goodbye to Baiwanzhuang because it is only 15m fromHongniRv which is the water conveying course for diverting Yellow river toTianjin, also the water conveying course for east line of DIVERSION OFSOUTHER WATER TO THE NORTH PROJECT, and is designated as thebackup water source for Tianjin in the 1 0' 5-year planning over water pollution

5-1l

prevention of Tianjin municipality and the Desilting has been finished andbelong to key protective target. Therefore, to intend a sludge burial landfill isobviously inappropriate.Per the elaboration above, of the 3 sites - farmland protection, environmentalsensitive targets protection and the reduction of sludge transport distance, thepreceding two are most important, while the transport distance is of minorimportance. The reduction of a few miles of transport distance cannot justifythe occupation of farmland. Lubekou and Jugezhuang sites are only 15kmaway from each other, it's irrational to build two landfills. So it justifies theconstruction of a large sized sludge burial landfill of high standard to be moreeconomical and land saving and beneficial to pollution prevention andenvironment management. Economically and environmentally, it boils down tothe conclusion of this evaluation: Jugezhuang be selected as the site of sludgeburial landfill discarding the other 4 which are inappropriate.

5-12

6 Environment status evaluation

6.1 Surface water environmenta quality monitoring and evaluation6.1.1 Water poundings status of the area covered by the Pipeline networkconstruction.In the area, due to deficient capacity of rainwater discharge, there is waterentrappeded in 3 subdivisions (Nanbeicang, FukangRd and Nanjiaowai)which flow into waste gas exhaust wells and entries of WW diversions andget mixed up with WW. Its discharge amount is far above the WW dischargecapacity. After many years' observation and comparative analysis bymunicipal Water Drainage Dept and its subordinate observation points, it isdetermined that the pumping capacity by the pump stns of the rainwateraccount for 24%, 25% and 26% respectively of the entrapped water, so thereare considerable amount of WW overflowing onto ground surface and getmixed up with entrapped water.(1) Water entrapping status(2) Water Quality InvestigationSince Nanbeicang subdivision belongs to Beicang Drainage System, thewater quality of Beicang pump stn is taken as the comparative quality;FukangRd subdivision belonging to XianyangRd Drainage System, the waterquality of XianyangRd pump stn is taken as the comparative quality,Nanjiaowai subdivision belonging to Shuanglin Drainage System, the waterquality of Shuanglin Pump stn as comparative quality.Rainwater evacuatios going by the rainwater recession time (i.e WWoverflowing amount) are seen in fig 6-3.Pollutants overflowing amounts are computed going by the WW discharge ofBeicang pump stn, FukangRd pump stn and Shuanglin pump stn and bypollutant concentration.

6-1

Fig 6-1 Statistics of Water Entrapped in the Affected SubdivisonsNo Item Nanbeicang subdivision FukangRd subdivision Nanjiaowai subdivision

1 Rain magnitude 30-50 30-50 30-50

2 Entrapping Around Beicang hospital, Around Party school S o Around DongtingRdposition Beicang Rd FukangRd

3 Entrapping are m2 20000 200000 24000

4 Depth of the 30-40 40-50 40-50entrapped water

5 Time of recession 2-3 4-5 3-4

6 Frequence of 3-4 3-4 3-4occurrenceOne time

7 entrappepped 7000 90000 10800amount

8 Annual amount 24500 315000 37800entrapped

9 Outlet directioin Go nto BeiyunRv via Gointo Haihe River via Gointo Haihe River viaOutlet directioin FengchanRv FukangRv NanweiDi Rv.

Fig 6-2 Compartive Pump Stns Water Quality Survey(Unit::mg/l Water quantity: :ta)

Name Water quantiity SS CODcr BOD Volatile phenol cyanide

Beicang Pump stn 1296.7 194.67 379.17 160.25 0.192 0.0076

FukangRd Pump stn 1621.2 157.25 280.42 123.83 0.158 0.0055

Shuanglin Pump stn 2800.6 262 392.29 138.33 0.25 0.107

Name As Cr Cd Hg Phosph- ate

Beicang Pump stn 0.0067 0.0663 0.0044 0.0003

FukangRd Pump stn 0.0039 0.0758 0.00304 0.0003

Shuanglin Pump stn 0.0052 0.068 0.0039 0.0003 1.2775

Fig.6-3 WW Pump Stn Rainwater Evacuation Amount in 2000One-time Rainwater Total evacuation amount

Name Discharge (m3/d) evacuabon (wm3) of flood season m3evacuation (in3 )(3-4 times/a) m

Beicang pump stn 76518.6 (24%) 18364.5 64275.8

FukangRd pump stn 35430.13 (25%) 8857.5 31001.3

Shuanglin pump stn 44296.3 (26%) 11517.0 40309.5

6-2

Fig 6-4 Overflown Surface WW Amount and Pollutant Amount(Unit: water quantity, SS, COD,. BOD-T/a, others-kg/a)

Name Water SS CODcr BOD Volatile pheno Cyanide

Nancbei- cang subdivsion 64275.8 12.5 24.4 10.3 12.3 0.43

FukangRd subdn. 31001.3 4.9 8.7 3.8 4.9 0.17

Nanjiaowai subdn 40309.5 10.6 15.8 5.6 10.1 4.31

Total 135586.6 28.0 48.9 19.7 27.3 4.91

Name As Cr Cd Hg Phosph- ate

Nancbei- cang subdivsion 0.43 4.26 0.28 0.019

FukangRd subdn. 0.12 2.35 0.094 0.009

Nanjiaowai subdn 0.21 2.74 0.16 0.012 51.5

Total 0.76 9.35 0.53 0.04

From the fig above, the WW overflowing amount in flood season of thepresent three water entrapping subdivisions is 135,600tons, and thepollutants are SS28tons, COD48.9 tons, BOD19.7tons respectively, besides,there are other pollutants discharged into Haihe, via FengchanRv, FukangRvand NanweiRv.Amid which, WW discharge into FengchanRv is 64,000tons, pollutants arerespectively SS12.5tons, COD24.4tons, BOD24.4tons and other pollutants.WW discharge into FukangRv is 38,000tons, pollutants are respectivelySS4.5tons, COD8.7tons, BOD3.8tons and other pollutants. WW dischargeinto NanwerideRv is 40,000tons, pollutants are respectively SS10.6tons,COD15.8tons, BOD5.6tons and other pollutants

6.1.2 Present conditions of WW discharge along the banks of Dagu SewageCanalThe canal starts from XianyangRd pump stn of Nankai Disctrict of Tianjin city,and finishes into sea at Dongdagu pump stn of Tanggu District, totaling 71 km.Its chief mission is to take up the WW discharge from Nankai, Heping, Hexi,Xiqing, Jinnan, Dagang, and Danggu districts, being an important WWdischarge channel for southern part of Tianjin city. An investigation andanalysis over WW discharge systems and key pollution sources on the twosides of Dagu canal of 2000 has been made and the result is seen in fig 6-5.

6-3

Fig 6-5 2000's Main Pollution Sources, WW Quantity and Pollutants Discharge Concentration

Name of Pollution WCOD BOD Volatile Cyaniad Oils As Cr Cd Hg PbSource quantity 5 CO BDS Pheno e

Jizhuangzi 9062.97 17.0 79.0 18.4 0.10 0.004 _ 0.003 0.023 0.001 0.00036WWrIP*

B Jizhuangzi 3617.15 64.3 312.2 160.5 0.14 0.004 _ 0.005 0.077 0.002 0.00030Pump stn

0*

(D

e P tny 10224.07 157.2 280.4 123.8 0.16 0.005 0.004 0.076 0.003 0.00030cn Pump stn

ShuanglinRd 3140.43 262.7 431.7 138.3 0.25 0.107 -- 0.005 0.068 0.004 0.00029Pump stn

WWTP 30 120 30

Svtanidured _ 0.5 10 0.5 1.5 0.1 0.05 1.0Value

Others 200 150 60

Note: WWTP unit is 10,000 t/a and the remaining is unit of mg/I

6-4

6.1.3 Surface water environmental status quo evaluation6.1.3.1 Evaluation approaches

Standard index computation formula as follows:p Cj

Ci.in which: P i items' standard index

C -i items' averageC,0 i items' water quality evaluation criteria

PH value's standard index computation formula as follows:

pH Si + S2

PpH S 2

2

in which: PPH -pH value's standard indexes

SPH - pH vlaue's average value

Si . S2 are respectively the upper and lower limits of Phvalue.

6.1.3 .2 Monitoring data(1) Monitoring of present conditions of water quality of water bodies to becovered direct by the pipeline network subproject.1) items of monitoring

pH, COD=< BOD 51 SS, NH4-N, Volatilephenol, cyanide, oils.2) monitoring position

Water bodies directly covered by the planned pipeline network subprojectincluding FengchanRv, FukangRv and NanweideRv.

Fig 6-6 Settings of Monitoring SectionsNo Rivers Sections of Specifice position

monitored monitorng

1# GaofengRd bridge 1km from BeiyunRv inlet

2# FengchanRv ChaoyangRd 2km from BeiyunRv inlet

3# Balidai bridge About 1km from rainwater outlet(E) to be builtFukangRv

4# Yizhongxin bridge About 1 km from rainwater outlet(W) to be built

5# HongzeRd section About 1 km from ChangtaiyinRv inlet (E). NanweidiRv

6# DagunanRd bridge About 1km from ChangtaiyinRv inlet (w)

6-5

3) Results monitoredFg 6-7 Directly Covered Water Bodies' Monitoring Results

Mored R Monitoring Volat caored Rv secton pH SS BOD5 CODO NH4-N t CyaI nide Oils

GaofengRd 7.61 213 44.7 143.0 17.0 Not Not 1 3Feng- Bridge dectected. dectected.

chan Rv ChoagdNot NotChaoyangRd 7.67 136 42.7 113.0 19.7 dectected. dectected. 1.0

Balidai Bridge 8.23 58.7 6.17 48.4 0.660

RvYizhongxi bridge 8.48 105.3 9.97 47.5 0.827

HongzeRd 7.61 48.7 19.22 100.0 9.66Nanw- section

weidi Rv DagudngabnRd 7.71 50 47.93 166.2 13.80

Standard value 6-9 150 10 40 1.5 0.1 0.2 1.0

4) Evaluation resultThe values of 4 itmes(SS, CODcr NH4-N) for Fengchan river are seriouslyover standard, of wich NH4-N's Pi value is 12.23 at maximum. The values of 4itmes (BOD5, CODcr NH4-N) for Fengchan river are seriously over standard,of wich NH4-N's Pi value is 7..82 at maximum.

Fig 6-8 Evaluation Result of Directly Covered Water Bodies (Unit: non-dimesional)

River PH ss BOD5 COD, NH4-N Volatil cyanide Oils_________ _______ _______ phenol

Fengchan 0.09 1.16 4.37 3.2 12.23 0 0 1.2River

Fukang 0.57 0.54 0.81 1.20 0.50 - - -River

Nanweidi 0.11 0.33 3.36 6.66 7.82River IIIIII (2) Shuanglin WWTP system directly covered water bodies's water quality

present conditions monitoringMonitoring position1#: Shuanglin Pump stn; 2#: the monitoring section at 50m of upper reaches(Xianfeng Sewage canal) from outlet of Shuanglin WWTP: 3#: the monitoringsection at 100m of lower reaches (Xianfeng Sewage canal) from outlet ofShuanglin WWTP; 4-1# the lower reaches of confluence between Dagu canaland Xianfeng River.; 4 -2# the upper reaches of Dagu canal whereXianfeng canal enters.2) monitoring items

pH. SP, COD ammonia nitrogen, oils, volatile phenol, cyanide, 6-valencechrome, total mercury, total arsenic, total iron, total cadmium, total lead, totalnickle and toatl zinc etc.3) result monitoredThe result monitored at entry (Jugezhuang) by the outlet water course(Xianfeng Rv) of Shuanglin WW into Dagu canal is seen in fig 6-9.

Fig 6-9 Water Quality Monitored Result at the Entry (Jugezhuang ) of XianfengCanal into Dagu Canal

Item 4-1# 4-2# Standard value

PH 7.87 7.52 6-9

SS 96 28 250

COD 218 28.3 40

Ammonia nitrogen 28.6 24.8 1.5

Oils No monitoring No monitoring 1.0

Fig 6-9 (cotinued) Water Quality Monitored Result at the Entry(Jugezhuang ) of Xianfeng Canal into Dagu Canal

Item 4-1# 4-2# Standard value

Volatile phenol 0.163 Not dectected 0.1

Cyanide 0.023 0.051 0.2

6-valence chrome 0.005 0.006 0.1

Total mercury 0.654 1.95 0.001

Total arsenic 0.008 0.033 0.1

Total iron 0.286 0.292

Total cadmium Not dectected 0.110 0.01

Total lead Not dectected Not detected 0.1

Total nickle Not dectected 0.0710 1.0

Total zinc 0.0710 0.0340

4) Result monitoredResult monitored is seen in fig 6-11, COD and volatile pheno values are abovestandard, while the values of heavy metals conform to the standard.

6-7

Fig 6-10 Water Environment Status Monitored Resulton position 1# 2# 3#

Item \ Range Average range Average Range Average

PH 6.94-7.47 7. 28 7.06-7.61 7.36 6.80-7.22 7.00

SS 180-220 202 190-269 224 157-260 213

COD 200-397 322 285-448 361 248-403 343

Ammonia nitrogn 2.62-6.23 5.03 4.59-7.23 5.88 3.95-7.23 5.69

Phospht 1.35-1.67 1.52 0.62'-1.18 0.88 1.10'-1.46 1.30

Oils 4.20-5.01 4.68 4.58-7.21 5.19 3.14-6.29 5.09

VW phenol 0.281-0.347 0.379 0.641-1.21 0.954 0.259-0.400 0.334

Cyanide 0.073-0.460 0.269 0.085-0.624 0.350 0.150-0.216 0.183

Mercury Not dectected Not dectected Not dectected

Cadmium Not dectected Not dectected Not dectected

Arsenic Not dectected Not dectected Not dectected

Lead Not dectected Not dectected Not dectected

6-val chrome 0. 008-0.015 0.010 0.008-0.012 0.010 0.007-0.013 0.010

Nickle 0.07-0.10 0.08 0.08-0.13 0.09 0.06-0.14 0.09

Sulfide Not dectected Not dectected Not dectected

Fig 6-11 Water Pollutants Standard Indexes in Areas under Construction

Point position

Item 1# 2# 3# 1# 2# 3#

Class GHZB 1-1999V GB5084-92

PH 0.15 0.09 0.33- 0.19 0.24 0

SS 0.808 0.90 0.85 1.01 1.12 1.06

COD 8.05 9.02 8.58 1.07 1.20 1.14

Ammo. 335 393790102609Nitrogen 3.35 3.92 3.79 0.17 0.20 0.19

Phosfate

Oils 4.68 5.19 5.09 0.47 0.52 0.51

Vtl phenol 0.379 0.954 0.334 0.379 0.954 0.334

Cyanide 1.345 1.750 0.915 0.538 0.700 0.366

Mercury 5.00* 5.00* 5.00* 5.00* 5.00* 5.00*

6-8

Fig 6-11(continued) Water Pollutants Standard Indexes in Areas underConstruction

Point position A,it

Item 1# 2# 3# 1# 2# 3#

Class GHZB 1-1999V GB5084-92

Arsenic 0.035* 0.035* 0.035* - -

Lead 1. 0* 1. 0* 1. 0* 1. 0* 1. 0* 1. 0*6-valn

chrome 0. 1 0. 1 0.1 0. 1 0. 1 0. 1

Nickle 0. 08 0. 09 0. 09 0. 08 0. 09 0. 09

Sulfide 0. 035* 0. 035* 0. 035* 0. 035* 0. 035* 0. 035*cadmiu 2.5* 2.5* 2.5* 50* 50* 50*

Fig 6-12 Water Environment Status Monitored Result and OverstandardStatististics

1# 2# - 3#

Item Overstandard rate% time Overstandard rate% time Overstandard rate% time

GHZB 1-1999VA GB5084-92 GHZB 1-1999VA GB5084-92 GHZB 1-1999V GB5084-92

PH 0 0 0 0 0 0

SS 0 50(0.1) 25(0.28) 63(0.35) 25(0.04) 63(0.3)

COD 100 (8.9) 75(0.32) 100(10.2) 75(0.49) 100(9.08) 75(0.34)

Ammo 100(3.15) 0 100(3.82) 0 100(3.82) 0nitrogen

Phosfate 100(7.35) 0 100(4.9) 0 100(6.3) 0

Oils 100(4.01) 0 100(6.21) 0 100(5.29) 0

Vtl phenol 100(2.47) 0 100(11. 1) 0 100(3.00) 0

Cyanide 50(1.3) 0 50((2.12) 50(0.25) 25(0.08) 0

Mercury .

cadmium -

Arsenic -

Lead

6-vain 0 0 0chrome000000

Nickle 0 0 0 0 0 0

sulfie I

6-9

(2) Monitoring of water quality of Dagu Sewage Canal water body1) Monitoring positionsMonitoring points are respectively set at the confluence betweenXianyangRd pump stn and MinyunRd pump stn (1#), 500m up from theconfluence between Dagu canal and Jizhuangze outlet (2#), 500m down fromthe confluence between Dagu canal and Jizhuangze outlet (3#), JinlaiRdsection of Jizhuangze River (4#), 500m from the front of Paoshui pump stn(5#), 1km from the back of Paoshui pump stn (6#), 500m from the front ofJugezhuang pump stn (7#), the confluence between Dagu canal and Xianfengcanal (8#), 500m up from the entry of Xianfeng canal into Dagu canal (9#),Xinchen bridge (10#), 100m down from the entry of WW of Dagu ChemicalPlant into Dagu canal (11#), 500m from the front of Dongdagu pump stn (12#),1km from the rear of Dongdagu pump stn (13#) - altogether 13 observatorypoints.2) Monitored ItemsMonitored items includePH, SS, CODCr, ammonia nitrogen, Cr8+, As, Hg.Cd. Fe, Ni. Zn. Pb, cyanide, volatile phenol, oils..3) Result monitored

See fig6-13 and fig 6-14.4) Result of evaluatioinWithin the monitored results, over standardvalued ones include ammonianitrogen, COD, total mercury and dissoluable iron. Other monitored items areall below standard value. The sequence of over standard valued pollutants areammonia>COD>total mercury>dissoluable iron, amid which are abovestandard all over, the biggest value of single factor evaluation index appearedat 4# point being 19.73; COD value is above standard at #1,7,8,9,10,11,12 and13 while it is still below standard at the remaining points; the biggest value ofsingle factor evaluation index appeared at 12# point being 6.70. Total mercuryvalue is above standard at #5,9,10,12 and 13, whiel below standard at theremaining points; the biggest value of single factor evaluation index appearedat 9# being 3.16. Dissoluable iron value is above standard at 13# point, thebiggest value of single factor evaluation index being 1.32 while below standardat remaining points.

6-10

Fig 6-13 Dagu Canal Water Quality Monitored Result (unit: mg/l except for pH)

Point PH SP COD Ammonia Oils Volatile cyanide 6-valence Total Total Dissoluabl Total Total lead Tobi nicde Total zincposition value nitrogen phenol chrome mercury arsenic e iron cadmium

1 7.65 96 239 16.4 Not dectected 0.315 Not 0.004 0.0006 0.003 0.371 Not Not Not 0.02102__ 7.46____ 3 12 283 Ntdtce dettd dectected 0.004 000 0.3 .6 dectected dectected dectected 0.0110

2 7.46 32 124 28.3 lot dectected Not Not 0.004 0.00008 0.003 0.616 Not Not Not 0.01104_________ 75ddectected dectected 00 006 0 3 04 dectected dectected dectected 0.008D

3 7.213 3 191 264 Not dectected 0.4 d cted 00 0.0018 0004 0.519N NNot Not Not Not3 7.13 15 108 26.4 Not dectectec dectec ted 0ectect00008 0.004 0.519 ddectected dectected dectected dectected

4 7.2 33 65 29.6 Not Not 0.009 0.0006 0.003 0.457 Not Not Not 0.00808 7.87 96 218 28.6 Notdec t dectected dectected 020 .0 .8 2 dectected dectected dectected

5 7521 33 19 264. Not dectectec d td 041 Not 0.007 0.0018 0.005 0.793 Not Not Not 0.034010_8.28_70 511 20.4 Notdectected dectected 0.004d e 0.008 dectected dectected dectected 0.0140

Not Not Not Not Not6 7.74 25 197 19.2 Not d dectect ed d0015 0.005 0.0005 0.009 0.713 dectected dectected dectected dectected

12 7.6 8 34 849 No dctctc ececed detete 006 .021 dcNNote 083Not017de 0.0350eNt°ce 0.0350

7 7.49 33 265 25.5 Not dectecec dectected Not 0.072 0.007 0.00048 0.039 0.702 0.0001 decNte cted 0 0 0.030

8 7.87 96 218 28.6 ot dectected 0.163 0.023 0.005 0.00065 0.008 0.286 Not Not Not 0.07106-11__ _________ ________ dectected dectected dectectedNot Not9 7.52 28 283 24.8 4ot dectected dectected 0.051 0.006 0.00195 0.033 0.292 0.0001 dectected 0.0710 0.0340

10 8.28 70 511 20.4 qot dectected Not 0.004 0.008 0.00316 0.022 0.229 0.00029 Not Not 0.0140________ ____ __________ ~~ ~~~dectected __ _ _ _ _ _ _ _dectected dectected I _ __ _

11 8.04 108 910 12.3 lot dectected Not Not 0.004 0.00054 0.011 0.560 0.00031 Not Not Not________ __________ ~~~~~~~dectected dectected dectected dectected dectected

12 7.6 28 340 849 No dectcted Not Not 0.006 0.00219 Nt 084 0017 Not Not 0.021012 7.76 28 1340 8.49 ot dectecteddectected dectected _____dectecteddetcddcetd

13 8. 3 75 8.0 No etce Not Not 0.004 0.00171 Not 1.32 0.00236 Not Not 0.0220__________dectected dectected .dectected dectected dectected ____

Standard 5.5-8.5 150 200 1.5 5.0 1.0 L0.5 0.1 0.001 0.05 1.0 0.005 0.1 1.02.

6-11

Fig 6-14 D gu Manal Water Quality Evaluation Results

Point PH SP COD Ammonia Oils Volatile cyanide 6-valence Total Total Dissoluabl Total Totallead Totalnichle Totalzincposition value nitrogen phenol chrome mercury arsenic e iron cadmium

1 0.22 0.64 1.20 10.93 dectected 0.315 dectected 0.04 0.60 0.06 0.37 dectected Not dectected 0.01

2 0.15 0.21 0.62 18.87 Not Not Not 0.04 0.08 0.06 0.62 Not Not Not 0.010.15 0.21 0.62 18.87 dectected dectected dectected 0.04 0.08 0.06 0.62 dectected dectected dectected

3 0.04 0.10 0.54 17.60 Not Not Not Not 0.8 00 .2 Not Not Not Not3 0.04 0.10 0.54 17.60 dectected dectected dectected dectected 0.08 0.08 0.52 dectected dectected dectected dectected

4 0.7 02 07 97 Not Not Not 0.09 0.60 0.06 0.46 Not Not Not 04_ _ 0 27 0.22 .78 19.73 dectected dectected dectected 0.09 0.60 dectected dectected dectected

5 0.07 0.22 0.96 17.60 Not 0.114 Not 0.07 1.80 0.1 0.79 Not Not Not 0.01_______ _______dectected dectected dectected dectected dectected

6 0.25 0.17 0.99 12.80 Not Not 0.3 00 .0 01 .1 Not Not Not Not6 0.25 0.17 0.99 12.80 dectected dectected 0.03 0.05 0.50 0.18 0.71 dectected dectected dectected dectected

7 0.16 0.22 1.33 17.00 decNtected decNtected 0.14 0.07 0.48 0.78 0.70 0.02 decNtected 0.0350 0.02

8 0.29 0.64 1.09 19.07 Not 0.6 .5 00 .5 01 .9 Not Not Not 008 0.29 0.64 1.09 19.07 dectected 0.163 0.05 0.05 0.65 0.16 0.29 dectected dectected dectected 0.04

9 0.17 0.19 1.42 16.53 deected dectecte 0.10 0.06 1.95 0.66 0.29 0.02 decected 0.0710 0.02

10 0.43 0.47 2.56 13.60 decNtected decNtected 0.01 0.08 3.16 0.44 0.23 0.06 decNtected decNtected 0.01

1 1 0.35 0.2 4.55 8.20 Not Not Not 0.4 05 .2 05 .6 Not Not Not11 0.35 0.72 4.55 8.20 dectected dectected dectected 0.04 0.54 0.22 0.56 0.06 dectected dectected dectected

1 2 0.25 0.9 6.70 5.66 Not Not Not 0.06 2.19 Not 0.83 0.03 Not Not 0.0112 0.25 0.19 6.70 5.66 dectected dectected dectected 0.06 2.19 dectected 033 dectected dectected 0.

13 0.34 0.91 3.75 5.35 Not Not Not 0.04 1.71 Not 1.32 0.47 Not Nt 0.0113 0.34 0.91 3.75 5.35 dectected dectected dectected 0.04 1.71 dectected 1.3_047 dec_te_cted dec_t______ 0.01

6-12

6.2 En ironmental air status quo evaluation6.2.1 Approaches to evaluationAdopt Standard index method to evaluate the air environmental status, theStandard index computing fomula is as follows:

-cCio

in which: P-I items' standard indexC,-l ; items' standard indexC0o -I items evaluation standard daily value

6.2.2 Environmental air quality historical monitored data study1 ) items of study: SO2, NO2, TSP2) year of the study: 2000 3) points of the study: environmental points of Beichen, Nankai, Hexi, Jinnan,Xiqing and Tanggu districts.4) data statisticsStatistical results of environmental monitored data for 3 regular air pollutantsare seen in Fig 6-15.

6-13

Fig6-15 2000 Air Envirnmental Quality Status Monitoring and Pollution Load Analysis

(daily average value unit: mg/m3 )

I\ems of study SO2 NO2 TSP

Heat ting Heat ting Annual daily Heat ting Nonheating Annual daily Heatting Nonheating Annual dailyperiod period average period period average period period average.

Daily av 0.091 0.013 0.046 0.029 0.024 0.026 0.340 0.317 0.327

Pi 0.61 0.09 0.31 0.36 0.30 0.33 1.70 1.59 1.64

Beich- Daily av 0.059 0.019 0.035 0.055 0.039 0.046 0.290 0.246 0.264chen Pi 0 3 . 30 2 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

chen 0.39 0.13 0.23 0.46 0.33 0.38 0.97 0.82 0.88

Daily av 0.100 0.012 0.048 0.045 0.035 0.039 0.248 0.229 0.237Nankai

Pi 0.67 0.08 0.32 0.38 0.29 0.33 0.83 0.76 0.79

Daily av 0.122 0.025 0.065 0.064 0.050 0.056 0.336 0.270 0.298Hexi

Pi 0.81 0.17 0.43 0.53 0.42 0.47 1.12 0.90 0.99

Daily av 0.103 0.009 0.048 0.046 0.018 0.030 0.349 0.246 0.289Xiqing

Pi 1.72 0.15 0.8 0.58 0.23 0.38 1.75 1.23 1.45

Daily av 0.062 0.032 0.045 0.052 0.041 0.046 0.313 0.312 0.312Tang- gu

Pi 1.03 0.53 0.75 0.65 0.51 0.58 1.57 1.56 1.56

6-14

5) Evaluation resultCurrently the main air poOlutants for Beichen, Nankai and Hexi districts are

TSP. In 2000, except Hexi where TSP vaOue sometimes is above standard(about 12% ), the other indexes had aWi reached class 2 of "Environmental AirQuality Criteria" (GB3095-1996). In Hexi, TSP's high value may be related toburning of coalO for heating in winter, also somewhat related to the fact thatChentangzhuang industriaO zone is at the windward of the observation point.

SO2 value of Xiqing, Jinnan and Tanggu districts are found abover the"Environmental- Air Quality Criteria" (GB3095-1996) during heating season,and below standard during non-heating season, its yearly average is alsobelow standard. The SO2 values of Nankai district for heating average, non-heating average and yearly average are found aOl below standard. The NO2

and CO values of the project covered area for heating average, non-heatingaverage and yearly average are found all below standard,too.6.2.3 The monitoring and evaluation of air environmental quality status ofShuangling WWTPTo understand the status quo of the environmental air quality of the areascovered by the construction of the project, the environment monitoring stn ofJinnan district of Tianjin conducted site monitorings over the areas embracedby the project construction from Jan 21 to 25 2002.1) Monitoring points: for regular pollutants, 4 monitoring points were set up atthe site of the intended WWTP, Housantai village, Nanmaji viliage and the Jitaivillage of Xinzhuang Town of Jinnan district.2) Items monitored: regular poliutants: SO2, TSP; specific pollutants: H2S, NH3and concentration of foul smeO0.3) Monitoring frequencies: 5 consecutive days of monitoring for regularpollutants; 1 day for specific pollutants, 4 times for H2S, NH3, 2 times for foul-smeO0l concentration.4) Results monitored

Fig 6-16 Air Environment Status (daily average) Monitored Result mg/m3

ItemSO2 TSP

Monitored value Average value Monitored value Average valueMon. point range range

WWTP site 0.056-0.063 0.060 0.254-0.310 0.275

Jitai village 0.056-0.074 0.065 0.194-0.301 0.246

Housanhe village 0.059-0.081 0.077 0.230-0.299 0.264

Nanmaji village 0.070-0.096 0.083 0.239-0.299 0.270

Evaluation standard 0.30GB3095-1996 (dass2) 0. 0

6-15

The daily monitored results of H2S, NH3 and foul- smell- concentration in theintended project construction area are seen in fig 6-17.

Fig6-17 Air Specific Po01utants Monitored Resutts

tem Mon. points Nanmaji vilig Jitai vilig Housanhe vilig Evaluation.stndrdFoul smell Monitored 17.6-33.9 <10 <10 DB12/-059-95

Fou sm llvalue range DB12/_____059___95_

non-dimn. Aerage 25.75 <10 <10 (20)transient_ _ _ _ _ _ _ _ _ v a lu e _ _ _ _ _ _ _ _ _ _ _ _ _

Monitored 0.002-0.005 0.001 -0.008 0.001 -0.006 TJ36-79H2S value range TJ36-79__

Mg/m3 Aerage 0.004 0.004 0.004 0.01 (one time)value __ _ _ _ _ _

Monitored 0.029-0.058 0.177-0.293 0.028-0.138 TJ36-79NH 3 value range TJ36-79___

Mg/m3 Aerage 0.039 0.203 0.059 0.20(one time)

5) Evaluation resu:tStandard index computation result is seen in fig 6-18

Fig 6-18 Air Pollutants Indexes values

Mon.-point site Tianjin. Housanhe Nanmaji villageItem ~ ~ ~ WTPsie Mausoleum village Namivlag

s02 0. 40 0. 43 0. 51 0. 55

TSP 0. 92 0. 82 0. 88 0. 90

The indexes value of SO2a and TSP are all- below 1 which indicates thegood air quality of the area. And the specific factors monitored show that foulOsmeW concentration value is only once above stanadard in Nanmaji village, 0.7time higher, while NH3 values are twice above standard at Tianjin Mausoleum,the bigger one being 0.46 time higher., H2S values of a,ll points conforms tostandard.

6.2.4 Dagu sewage canal-fouli smelt gas status monitoring and evaluationOn Jan 26, 2002, a monitoring was made of status quo of foulr smell- gas ofDagu canal.1) Items monitored are fouli-smell- concentration, ammonia and H2S.2) Monitoring points of are respectively set up at 20m windward fromXingyuan bridge (1#), Xinyuan bridge (2#), 50m downwind from Xinyuanbridge (3#), 20m windward from Xincheng bridge (4#), Xincheng bridge (5#),50m downwind from Xincheng bridge (63#).3) Monitoring frequence: a full day monitoring - 4 times, taking the biggestvalue.

6-16

4) Resui't monitored.Foui smell gas status monitored result is seen in fig 6-19.

Fig 6-19 Foul SmeOi Concentration Status Result Monitored

ItemMon. points Foul smell (Mg/M3) (mg/m3)

concentration. H2S(Ammonia

1# 1 0 0.003 0.058

2# 12 0.001 0.550

3# 1 10 0.003 0.068

4# 10 0.002 0.137

5# 33.9 0.002 0.077

6# 32.4 0.003 0.294

5) Results monitoredFouOr smell gas status evaluation result is seen in fig 6-20.At Xinchen bridge and 50 downwind from Xincheng bridge, the foul- smellconcentrations are both above the limit value of concentration ofenvironmental- controiled foulO smell of class 2 of DB12/059-95 "Fouli SmellGas Pollutants Discharge Standard", single factor evaluation indexes arerespectively 1.70 and 1.62, with other items still' below standard values. So theconclusion is the foul- smell- gas status along Dagu canal- is not meeting thestandard , main pollutant is the concentration of foul smell; whereby thedistribution is determined - the farther away from the canal course, the higherthe concentration of fou:r smell pollution. The degree of pollution is sequencedas canal course >downwind>windward. That demonstrates that the dischargeof fouO smell gas of Dagu canal- has already caused ill impact on thesurrounding air environmental- quality.

Fig 6-20 Foul Smell Concentration Status Evaluation Result

ItemMonitoring point

Foul smell concentration H2S ammonia

1# 0.5 0.05 0.04

2# 0.6 0.02 0.37

3# 0.5 0.05 0.05

4# 0.5 0.03 0.09

5# 1.7 0.03 0.05

6# 1.62 0.05 0.2

Standard vlaue 20 0.06mg/m3 1.5

6-17

6.3 Noise Evironment Status Quo Monitoring and Evaluation6.3.1 Noise status monitoring and eva'uation of pipeline network construction.1) Monitoring pointsone mon. point is set up at center position of the intended pump stn siteplanned by the subproject (see attached map 11), of which one moreobservation point is set up among the sensitive points nearby YingshuiRdpump stn. (see attached map 12).2) Monitoring frequence2 days for a monitoring cycle, once for morinig, afternoon and nighttime withtimetable seen in fig 6-21.3) Result monitored

4) Evaluation conclusionsThe pump stns related to the pipeOine network subproject falt respectively intoclassl-4 of functional zones, of which the background noise value at river-crossing pump stn (1#), Tiedong Pump stn (2#), GaofengRd-east WW pumpstn (3#), outer ringRd pump stn (6#), and DongtingRd pump stn (7#) couldmeet the standard set for the functional zones with comparatively goodsurrounding sound environment. The background value at Chongming pumpstn is near the standard for its being located at the intersection ofShuishangbeiRd and ChongmingRd which is susceptible to social noise. Thebackground value at entry of Xinhua news agency is above the standardthanks to its being close to HongqinanRd. While the dayme value of residentialblgs of Xinhuayuan (8#) could meet the standard but the nighttime value is4dB(A) over the standard, which makes it hardly to a'how any further noisetolerance.

6-18

Fi 6-21 Individual M nitoring Points and Monitoring Timetable

No Name subproject Functional zoning Monitoring point Monitoring timetable

1 River-cross pump stn Nanbeicang works 2 intended pump stn center I A 18. 19 F

2 TiedongRd pump stn Nanbeicang works 3 intended pump stn center 1 ,8 18. 19 Hi

3 GaofengRd pump stn Nanbeicang works 3 intended pump stn center I AH 18, 19 H

4 ChongmingRd pp stn FukangRd works 1 intended pump stn center I ,q 22. 23 F3

5 YingshuiRd WW pump stn FukangRd works 1 branch 1 a y 22, 23

6 Outer ring Rd WW pump stn FukangRd works 4 intended pump stn center 1 A 22. 23 Hl

7 DongtingRd WW pump stn Nanjiaowai works 3 intended pump stn center I AU 18, 19 F

8 Sensitive points nearby FukangRd works 1 Xinhuayuan residential big (15m I A 22, 23 FH6-19__ _ _ _ _ _ _ _ _ east of YingshuiRd_pump_stn)

6-19

Fig 6-22 Noise Status Monitored Result Statistics (unit:, dB (A))

Monitoring point and monitored value

Monitored time interval

1# 2# 3# 4# 5# 6# 7# 8#

Daytime 49.9 49.6 50.4 54.2 62.6 58.6 54.1 51.2

Nighttime 41.7 43.2 41.3 44.6 52.3 53.1 48.9 49.0

Funct- ional zoning class2 class3 class3 classl classl class class3 classl

GB3096-93 Day- time 60 65 65 55 55 70 65 55

Night time 50 55 55 45 45 55 55 45

6-20

6.3.2 Shuanglin WWTP noise environment monitoring and evaluation.1) Monitoring points: there are 4 points distributed at lm outside the plannedboundaries of WWTP.2) Monitoring frequence: one day - once at day and night3) Result monitored: see fig 6-23

Fi 6-23 WWTP Peripherai Noise Monitored Result dB(A)Samping East bound South West Norht

point bound bound bound

Daytime 51.0 41.4 42.8 45.8

nighttime 45.4 33.2 36.5 39.1

4) Evaluation conclusion: no over standard values turn up at all poins. So itmeans the surrounding sound environment of the intended project is still good.

6.3.3 Monitoring and evaluation of Sound environment status of both sides ofDagu canai1) Monitoring points: at the front of No 4, Jianhua hutong, Xinyuan village,Xiqing District (1#), front of No 5, 15t row, yuanshunli, Xincheng village, JinnanDistrict (2#), -- 2 points are set up.2) Monitoring frequence: once daily, timing :11:00 - 13:003) Result monitored

Fig 6-24 The Sound Environment Quality Monitored Result for Dagu CanalRange dB(A)

Monitoring point 1# 2#

Monitored value 52 57

4) Evaluation conclusionThe range of space' noise value is 52-57 dB(A), below the limit value of class 2"Urban Area- Environmental Noise Standard", while at night time, as there areno big noise sources around, the sound environment quality is fairly good, upto class 2 standard, therefore, the sound environment of this region could bemade up to standard.

6-21

6.4 The investigation and analysis of status quo of other environmentalkey elements relating to Dagu sewage canal renovation works.6.4.1 The investigation and analysis of status quo of hydrobios of Dagu canal.Since Dagu canal is a- pure WW river, its hydrobio mass is considerable simpleas opposed to the feature of bio diversity presented by normal rivers. Itsdistribution varies with seasons, and with changes of self purification degreesat the different parts of the river.(1) Hydrobios surveying points*The points go from upper to lower reaches, respectively at depot of 3525factory (1), Wangdingdi water pump stn (2), Jinxidawa- (3), west of No 4house (4), Liqizhuang middle school (5), Qingfeng bridge (6), Reformatryfarm (7), Qingbowai farm (8), Qingbowai farm (9), front of Jugezhuangconfluence (from Qingbowa) (10), back of Jugezhuang confluence (12),Xianshugu (13), Gegu (14), Xincheng (15), Dongdagu (16). The result is seenin fig 5.8-1.

(2) Distribution of bacteria-quantityFig 6-25 The Aggregate of Bacteria- at the Surveying Points of Dagu Canal

Sampling timeNo of Point

1983 5 A 1983I10A

1 2.8x106 9.9x106

2 2.7x106 5.8x106

3 1.2x106 4.7x106

4 3.5x104 9.1x105

5 1.6x106 3.4x106

6 6.5x105 2.1x106

7 4.4x105 3.4x106

8 2.8x105 3.3x106

9 4.8x105 1.1x106

10 5.3x104 1.2x105

11 2.6x105 1.0x107

12 9.6x104 1.6x106

13 3.7x104 7.0x105

14 5.0x104 1.1x106

15 4.9x104 6.3x106

16 2.8x104 1.3X105

6-22

Viewed generally, the magnitude of changes of bacteria- aggregates is ratherbig, for instance in May from point 1 to 4, the number of bacteria goes downfrom 2.8X 106 to 3.5X104 by 98.75%; from point 5 to 8, the number goesdown from 1.6 X 106 to 2.8 X 105 by 82.5%; from point 11 to 13, the numberdown from 2.5 X 105 to 3.7 X 104 by 85.2%. That is indicative of the fact that ispossessed of great self purification capacity. With regard to the phenomenonof general higher numbers of bacteria- at all points in Oct than in May, it may bedue to the faster and bigger flow of water in Oct, which fortifies the oxygenrecovery capacity of the river, enabling more dissoluable oxygen in favor of thegrowth of aerobic organisms.(2) Invertebrate group's structure and distributionThe investigation conducted at 16 points of Dagu canal in May and Oct of 1983shows that there was only one family of protozon in the realm of water zoa;While other varieties composition is typical WW strains such as friskytrichomonad, bodo, micro campanularian etc. For bigger water zoa- like ratifer,cladocerans and copepod, nothing was located in two samplings at all points.However, based on the perusal and on the water samples (during flood seasonJune - Aug ), at some points of the canal may turn up some WW resistantprickly moina- which is the dominant crust acean in polluted rivers, channels,ditches and paddy fields of Tianjin during summer and autumn seasons. Theyare not invisible in the trunk line of the canal during other seasons. Duringflood season, the joining in of rainwater and added by the discharge fromsurrounding branches and paddy field water into the trunk line, the WW of thecanal is diluted to contain more dissolved oxygen and more growing of alge,that creates conditions for the proliferation of prickly moina: However, the sightdoes not appear all along the canal, and that means the prickly moina- won'tlive very long in the canal.Through two mud samplings, no zoobenthos were found, nor was any typicalzoobenthos found at all points.(3) Fish investigationThe investigation found considerable difference between the fish of Dagu cana-and those of nearby waters. Carp and loach are dominant of the river. Thestrains and numbers of fish vary with proportional changes of industrial WW,life WW and farming WW, the last factor bears greatest change i.e.proportionally, the bigger the farming WW, the more strains and quantity of fish.Therefore, an evident variance exists along sectors of the river, more so duringthe river dried-up period. Since the sectors up from Paoshuiwa pump stn arereceiving large quantity of industrial and life WW and tiny amount of farmingWW, the sectors' water is very seriously polluted and during the period of smallraining, no fish could survive; only when there is a- big rain and forms a- bigsurface runoff, carp and loach and blue trout can turn up.The sector from Paoshuiwa- pump stn to somewhere near Gegu is seen with

6-23

fish throughout the year, and most evident ones are too carp, loach and bluetrout. Other fish will not appear until after a- torrential rain increasing thefarming WW proportion. Within a sector of about 3km long east of point 9 ofQingbowai afe found with most fish species and with most quantity. There are19 fish kinds with carp and loach as minant.The sector from Dahanzhuang to Jugezhuang confluence, as well asDaluzhuang sector contain more fish kinds due to fafming WW quantity.The fish species of Dagu sewage canal may be traced to the natural fishbreeding taking place in farmland ditches as first sourece, or secondly, somefish in the fish pond may go with flood water as farmland is discharging after a-torrential rainfall into Dagu canal.In short, because Dagu canal is purely a- WW river, there are lots ofsaprophytic bacteria- while invertebtrate and fish are comparatively few. Thetypical pollution resistant frisky trichomonad is the dominant species ofprotozoon of the river, and carp, loach also account for certain dominance.With the advent of flood season and the dilution of the river by the rainwatersurface runoffs, the increase of dissolved oxygen and discharge of farmingWW, then some changes will take place on the species and quantity ofhydrobios.6.4.2 The monitoring and evaluation of status quo of substrate mud of DaguSewage canal.(1) IntroductionIn Sept 2001, site sampling monitorings were conducted on the river substratequality of Dagu sewage canai. The monitoring points are respectively set up atthe confluence of outlets of XianyangRd pump stn and MiyunRd pump stn (1#),500m up from the confluence of Jizhuangze ooutlet into Dagu canal (2#),500m down from the confluence of Jizhuangze ooutlet into Dagu canal (3#), atsection of JilaiRd of Jizhuangze drainage river (4#), 500m from the front ofPaoshuiwa- pump stn (5#), 500m from the back of Paoshuiwa- pump stn (6#),500m in front of Jugezhuang pump stn (7#), the confluence point of Dagucanai and XianfengRv (8#), 500m up from entry of XianfengRv into Dagu canal(9#), Xincheng bridge (10#), 100m down from the WW outlet of Dagu chemicalplant into Dagu canal (11#), 500m in front of DongdaRd pump stn (12#), 1kmfrom the back of DongdaRd pump stn (13#), -- 13 points in all. The monitoringfrequence: generally one sampling, and with regard to the points of abnormalphenomenon at points 1# and 2#, a- supplementary sampling was made inDec.. At each point, a- sampling includes 2 parts: sludge and substrate. Theapproaches to the monitoring go by the specification of "Soil EnvironmentQuality Standard" (GB15618-1995). The monitoring items include organicmatter, TP, TN, Hg, Cd, Cr, As, Pb, Ni, Zn, mineral oil, TOC, herbicide,pesticide, Fe, K, Na; Ca; Mg, CL, So42, and mechanical construction etc. - 34items of index.(2) Evaluation approaches and criteria

6-24

The harmful ingredients such as Hg, Cd, Cr, Hg. Cd, Cr. As, Pb. Zn, Ni.mineral oils, TOCG herbicide and pesticide etc. are evaluated by way of singlefactor evaluation index, among them, the standard abided by the evaluation forHg, Cd, Cr, Hg. Cd. Cr, As. Pb. Zn, Ni. mineral oils complies with "FarmingSludge P lutants Control Standard" GB4284-84, for the unspecified herbicideand pesticide in the standard, evaluation goes by reference to overseasrelative standard. Tp, TN, and organiz matter afe the main indexes for soilfertitlity, evaluation employs the method of comparison with the correspondingbackground content of North China Plain.

Single factor evaluation index:

C..jCse

in which Pq-j section i factor's evaluation indexCi,-j section I factor's actual monitored concentrationCs1-i factor's environment quality standafd

Fe. K, Na-. Ca-. Mg. CL. SQ42 mechanical construction etc. afe largelyitemized or sorted indexes based on Chinese soil classification method.Specific itemization is as follows:

Soil quality classification: adopting +-k iTM concise system, according tothe mechanic construction, the soil is divided into sandy soil, sandy loam, lightloam, mid loam, heavy loam, light clay, mid clay and heavy clay - 8 patterns,see fig 6-26.

Fig 6-26 Kachinsky Soil Quality Classification Concise SystemPhysical sand (<0.01mm, %) Physicalclay (>0.01mm, %)

Prairie soil, red, Prairie soil, red, Quality namepodzol yellow loam Podzol yellow loam0-10 0-10 100-90 100-90 Sand

10-20 10-20 90-80 90-80 Sandy loam

20-30 20-30 80-70 80-70 Light loam

30-40 30-45 70-60 70-55 Mid loam

40-50 45-60 60-50 55-40 Heavy loam

50-65 60-75 50-35 40-25 Light clay

65-80 75-85 35-20 25-15 Mid clay

>80 >85 <20 <15 Heavy clay

6-25

Saline-alkalinization: based on the salt content and ESP, the grade of soilsaiine-alkalization is divided into non saline-alkali soil, alkalized soil, alkali soil,

slight salinized soil, mid salinized soil, heavy sa- nized soil and saline-alkali soil- 8 grades, see fig 6-27.

i:LVI 1 =__ MR_ _ x 100, expressed often in % or ppM

ESP-= m AT xl0 (1.soil salt content, 2. salt content, 3. dry

soil weight, 4. ESP, 5. sodium ion content, 6. positive ion content

Fig 6-27 Soil Saline-alkalization Grading IndexesSalt content of soil(% ) ESP (%) Saline-alkalization

<15 Non saline-alkali soil

<0.2 15-20 Alkalized soil

>20 Alkali soil

0.2-0.5 Light salinized soil

0.5-0.7 Mid salinized soil>0.2 <15

0.7-1.0 Heavy salinized soil

>1.0 Saline soil

>0.2 >15 Saline-alkali soil

The salinized soil could be subdivided into:Saline-alkalization (SA) patterns: S soil's main ingredients are chloride andsulfate, hence, grading could be done according to the content proportions(CT/SO4

2) of Cl and S042., see fig 6-28.

Fig 6-28 Salinized Soil Subpattern Grading Indexes

Cl-/S042- <0.5 0.5-1 1-4 >4

SA soil Sulfate Chloride- Sulfate- Chloride Ssubpattern salination( sulfate (S) Chloride S soil

I s) soil soil soil si

(3) Result evaluationThe result of monitoring and evaluation of harmful substances are seenseparately in fig 6-29 and fig 6-32.In the supercrust of sludge of Dagu sewage canal, there are contents ofpollutants of arsenic, nickel, zinc and mineral oils which are above the

6-26

standard value, while others afe not seen above standard value. Arsenic valueis monitored at point 1# to be above standard, single factor evaluation being1.05; nickel over standard at point 8#, single factor evaluation (SFE) being12.9; zinc over standard at points 1#, 4#, 5#, 6#, 8#, and 10#, biggest SFE at10# point being 2.85; minerai oils over standard at points 1#, 3#, 4#, 5#, 6#, 8#,and 10#, SFE biggest value at 5# point being 3.97. Pollution of pollutants ofabove standard value are sequenced as mineral oils > Nickel > Zinc > Arsenic.The tendency of changes of over standard valued pollutants - Arsenic, Nickel,Zinc and mineral oils are viewed from the monitoring points like this: thesurface layer of points 1#, 3#, 5#, 6#, 8#, and 10# is all polluted, with over-standard pollutants of Arsenic, Zinc and mineral oils at point 1#, of Zinc andmineral oils at points 4#, 8# and 10#, of oil mineral oils at points 3#, 5#, and 6#.Of the points polluted, the degree of pollution is:8#>10#>4#>5#>1#>6#. While in the sublayer's sludge, Zinc and mineral oilsare found over standard at point 10#, single factor evaluation indexes areseparately 1.17 and 1.05, other pollutants are within the standard. Thesublayer sludge of other points are not polluted yet.The soil classification indexes and soil fertility indexes monitored on thesubstrate mud of Dagu canal are seen in fig 6-33 and fig 6-34.The construction patterns of substrate mud of Dagu canal is dominated withsand soil and sandy loam, except for point 1# where the substrate does notpresent saline-alkalization sight, other points, irrespective of surface orsublayers are ail found with certain degrees of saline-aikalization, mainly ofsalinization, at point also of alkalization. The fertility of surface layer sludge isfarly high. The evaluation and classification are seen in fig 6-35.

6-27

Fig 6-2g Monitored Harmful Substances of the Surface Layer of Sludge of Dagu Sewage Canal (mg/kg)

tern Spipoin # 2# 3# 4# 5# 6# 7# 8# 9# 10# 11# 12# 13# X

Total mercury 1.82 0.236 3.03 7.635 4.68 7.00 1.08 2.51 0.41 0.879 0.897 0.458 0.186 15

Total arsenic 78.6 16.7 11.1 15.95 14.8 15.6 10.9 9.05 16.1 39.4 55.9 13.5 15.8 75

Total nickel 59 29.6 68.2 74.2 169 89.5 50.5 2580 34.1 43.1 29.3 32.5 93 200

Total cadmium 1.832 0.67 2.70 2.875 2.80 3.10 0.160 2.95 0.45 3.25 0.098 0.35 0.206 20

Total zinc 2360 675 338 1070 71.2 495 241 2000 498 2850 71.5 291 230 1000

Total lead 382 64.4 77.6 356 142 67.5 25.0 390 58.1 64.1 28.5 17.5 27.1 1000

Total chrome 753 90.2 116 472 412 160 88.6 570 126 271 67.6 69.4 73.9 1000

Mineral oils 3620 2280 4100 10295 11900 6420 476 5920 89.5 8810 68.0 602 910 3000

not n0.0t84not not not not not 0Alpha-[BHC monitored not ored not m° 0175 monitored 0.0195 monitored 0.00701 0.01 74 monitored monitored monitored 05

not not not not not not notBeta-BHC 0.232 not monitored 0.202 0.200 0.101 0.156 0.5

monitored monitored monitored monitored monitored monitored monitored

not Not not Not not Not not Not Not not not notDelta-BHC not monitored .0.5

monitored dectected monitored dectected monitored dectected monitored dectected dectected monitored nonitored monitored

6-28

Ite 1Sp# point 3# 4# 6# 7# 9# 10# 11# 12# 13# B

Gamma-BHC not 1.27 not notmonitored 3.61 not 3.28 not 1.14 7.98 onitored onitore monitored 4monitored monitored onitored 3.61 monitored monitored monitored montored monitored

DDE not 0.0nt9 not not monitorednot 0.0262 not 0 0108 0.00102 onitored nio motored 0.5monitored . monitmonit ored onitored 0.0433 monitored monitored monitoredmonitored monitored

Paathi not 0 d nonito not monitored 0.0852 not 0.01603 not 002268 Not not not noto 0.5DDthy parat monitored 0.02529 ored not m onitored 0.0852 monitored monitored dectec0 6 decected monitored monitored monitored

DDDV d 070m .r not not monitored Not not Not not Not Not not not not O.SDDDrate moiormonitored monitored dectected monitored dectected monitored dectected dectected monitored monitored monitored

rthamidops not ot not not monitored Not not Not not Not Not not not notParathion monitored dectected monitored not monitored dectected monitored dectected monitored dectected dectected monitored monitored monitored

not Not not Not not Not not Not Not not not notMethyl parathion monitored dectected monitored not monitored dectected monitored dectected monitored dectected dectected monitored monitored monitored

DDVP not 0 0710 not no oioe .95 not 0.0432 not 0.0397 0.0429 nontoe nontoe montoredmonitored . oimonitored oire 0.95 monitored monitoredmoiremntrdmntrd

Phorate not Not not ntm iord Not not Not not Not Not not not notPhorate monitored dectected monitored ntm iorddectected monitored dectected monitored dectected dectected onitored monitored monitored

Mehmdpo not 0,588 not not moioe .1 not 0.557 not 031 Not not not not 1.0~~~ ~~monitored monitored IJIlJSU monitored monitored .30 dectected monitored monitored monitored

Malathion not Not not ntm iord Not not Not not Not Not not not notMalathion mnitored dectected monitored ntm iorddectected monitored dectected monitored dectected dectected monitored onitoredmoire

6-29

Fig 6-30 Evaluation of Harmful Substance Single Factor Indexes for Surface Layer Sludg of Dagu Canal

m pipoint 2 3# 4# 5# 6# 78 # 9# 10# 11# 12# 13# EPi

Total mercury 0.12 0.02 0.20 0.51 0.31 0.47 0.07 0.17 0.03 0.06 0.06 0.03 0.01 2.06

Total arsenic 1.05 0.22 0.15 0.21 0.20 0.21 0.15 0.12 0.21 0.53 0.75 0.18 0.21 4.19

Total nickel 0.30 0.15 0.34 0.37 0.85 0.45 0.25 12.9 0.17 0.22 0.15 0.16 0.47 16.78

Total cadmium 0.09 0.03 0.14 0.14 0.14 0.16 0.01 0.15 0.02 0.16 0.01 0.02 0.01 1.08

Total zinc 2.36 0.68 0.34 1.07 0.07 0.50 0.24 2.00 0.50 2.85 0.07 0.29 0.23 11.2

Toal lead 0.38 0.06 0.08 0.36 0.14 0.08 0.03 0.39 0.06 0.06 0.03 0.02 0.03 1.72

Total chrome 0.75 0.09 0.12 0.47 0.41 0.16 0.09 0.57 0.13 0.27 0.07 0.07 0.07 3.27

Mineral oils 1.21 0.76 1.37 3.43 3.97 2.14 0.16 1.97 0.03 2.94 0.02 0.20 0.30 18.5

Al4ph1a-BHCL not 037 not Not 0.035 not 0.039 no 0.014 0.034 nontrd nontoe nontored 5monitored monitored nonitored monitored monitored 0nonitored onitored monitored0

Beta-BHc ~not 06 not Niot 0.0 not 00 not 02 .1 not not not 17Beta-BHC monitored 0-46 monitored monitored 0.40 monitored 0.40 monitored 0.20 0.31 monitored monitored monitored 1.77

not Not not Not Not not Not not Not Not not not notDelta-BHC monitored dectected monitored monitored dectected monitored dectected monitored dectected dectected nonitored monitored monitored

6-30

pint 1# 2# 3# 4# 5# 6# 7# 8# 9# 10# 11# 12# 13# EPi

Gamma-BHC not 0.32 not Not 0.90 not 0.82 not 0.29 2.0 not not not 4.33monitored 0.32 monitored monitored monitored monitored monitored monitored monitored

DDE not 024 not Not 0.087 not 0.052 not 0.021 0.002 not not not 0.186nonitored 0.02 monitored monitored monitored monitored 0nonitored monitored monitored I

DDT notnot 5 not Not Not not Not not Not Not not not notmonitored . monitored monitored 0.17 monitored 0.032 monitored dectected monitored monitored monitored

DDD not No not Not Not not Not not Not Not not not notmonitored monitored monitored dectected monitored dectected monitored dectected dectected monitored monitored monitored

Metnparathion no Not not Not Not not Not not Not Not not not notoeParathin monitored dectected monitored monitored dectected monitored dectected monitored dectected dectected onitored monitored monitored

not Not not Not Not not Not not Not Not not not notMethyloarathn monitored dectected monitored monitored dectected monitored dectected monitored dectected dectected monitored monitored monitored

DDVP not 0.14 not Not 0.18 not 0.08 not 0.07 0.08 not not not 05monitored monitored monitored monitored monitored . monitored monitored monitored 0.55

Phorate not Not not Not Not not Not not Not Not not not notPhorathin monitored dectected monitored monitored dectected monitored dectected monitored dectected dectected monitorec monitored nonitored

Methmedohos not 058 not Not 038 not 057 not 030 Not not not not 7Methamdophos onitored 058 monitored monitored 038 monitored 057 monitored 030 dectected monitored nonitored nonitoreud1.7

Malahion not Not not Not Not not Not not Not Not not not notMalathion onitored dectected monitored monitoredi dectected monitored dectected monitored dectected dectected lmonitoredlnonitored nonitored

ZPJ 6.26 3.629 2.74 6.56 8.18 4.17 2.98 18.27 2.1 9.516 1.16 0.97 1.33

6-31

Fig 6-31 Result Monitored of Harmful Substances in the Sublayer Sludge of Dagu Canal (mg/kg)1p 2# 3pi4# 5# 6# 7# 8# 9# 10# 11# 12# 13r StandrdItm value

Tota mercury 0.1 S 0.152 0.950 0.503 0.203 0.095 0.415 monitored 0.288 0.756 monitored 0.210 0.183 15monitored mniote

Total arsenic 14 16.1 20.2 14.7 8.95 6.80 15.3 not 13.6 26.4 monitored 16.4 12 75.no not

Total nickel 29.9 25.6 42.1 33.2 21.6 25.4 30.2 monitored 30.5 31.2 monitored 33.1 30.5 200

Total cadmium 0.199 0.426 0.6 0.350 0.069 0.097 0.80 monitored 0.400 0.850 monitored 0.168 0.114 20

Total zinc 146 491 263 206 63 103 606 monitored 276 1170 monitored 118 935 1000

Total zinc 45.6 56.2 73.2 53.5 18.6 25.4 93.1 monitored 59 92.5 monitored 32.3 31.1 1000

not notTotal chrom 101 65.6 134 92.6 49.4 60.5 108 monitored 98.8 112 monitored 80.6 67.5 1000

Oils 134 1610 458 450 122 302 1640 monitored 214 3150 monitored 166 760 3000

6-32

Fig 6-32 Evaluation of Harmful Substance Single Factor Indexes for Sublayer Sludge of Dagu Canal (mg/kg)

\ Spl pointItem \ 2# 3# 4# 5# 6# 7# 8# 9# 10# 11# 12# 13# ZPi

Total mercury 0.01 0.01 0.06 0.03 0.01 0.01 0.03 - 0.02 0.05 0.01 0.01 0.27

Total arsenite .19 0.21 0.27 0.20 0.12 0.09 0.20 _ 0.18 0.35 0.22 0.16 2.16

Total nickel 0.15 0.13 0.21 0.17 0.11 0.13 0.15 0.15 0.16 0.17 0.15 1.65

Total cadmium 0.01 0.02 0.03 0.02 0.003 0.005 0.04 0.02 0.04 0.01 0.01 0.22

Total zinc 0.15 0.49 0.26 0.21 0.06 0.10 0.61 _ 0.28 1.17 = 0.12 0.94 4.54

Total zinc 0.05 0.06 0.07 0.05 0.02 0.03 0.09 _ 0.06 0.09 0.03 0.03 0.61

Total chrome 0.10 0.07 0.13 0.09 0.05 0.06 0.11 0.10 0.11 0.08 0.07 0.99

Oils 0.04 0.54 0.15 0.15 0.04 0.10 0.55 _ 0.07 1.05 0.05 0.25 3.01

E Pj 0.7 1.52 1.2 0.92 0.42 0.52 1.78 = 0.88 3.03 0.88 1.62

6-33

Fig 6-33 The Soil Classification Indexes and Fertility Indexes Monitored Result for the Surface Sludge of Dagu Canal

Mon Organic TN TP Cl- S042- Fe K Na Ca Mg Salt ESP Cl-/ Mecha- nicpoint me (PpM (ppMf (ppMJ (ppM ( (%) (%) content (%J S042- const ruction

1# 6.37 1945 2020 43.7 978 3.84 2.07 0.959 3.11 2.60 0.10 7.62 0.04 sand soil

2# 4.73 4580 959 1910 247 3.26 2.01 0.989 5.95 1.82 0.22 7.05 7.73 sand soil

3# 4.35 4100 1460 69.5 9910 2.69 1.77 1.26 3.77 1.62 1.00 11.34 0.01 sand soil

4# 8.265 3455 2440 6525 35760 1.99 0.973 0.89 3.275 2.98 4.23 8.81 0.18 sand soil

5# 11.3 1520 2550 7240 11600 2.42 1.48 1.23 3.19 1.92 1.88 12.01 0.62 sand soil

6# 10.1 6420 1340 19600 13200 2.38 1.58 1.23 3.47 1.82 3.28 11.74 1.48 sand soil

7# 2.06 33.3 885 10600 8400 3.16 2.14 1.28 5.96 1.98 1.90 8.815 1.26 sandy loam

8tt 7.35 1050 1340 5530 5120 2.63 1.42 1.19 3.98 1.84 1.07 10.76 1.08 sandy loam

9# 2.91 27.8 774 1200 2740 3.08 1.98 0.977 4.54 1.69 0.39 7.96 0.44 sandy loam

10# 15.5 5240 1410 37300 11900 1.79 1.29 1.99 4.67 1.98 4.92 16.98 3.13 sandy loam

11# 4.02 33.4 941 62800 10700 2.98 2.06 1.64 4.29 1.77 7.35 12.87 5.87 sandy loam

12# 2.23 506 821 23300 3970 3.02 2.12 1.70 4.81 2.01 2.73 12.45 5.87 sandy loam

13# 2.36 777 1280 9100 2.51 1.60 1.11 6.47 1.82 1.04 8.22 0.14 sandy loam

6-34

Fig 6-34 The Soil Classification Indexes and Fertility Indexes Monitored Result for the Sublayer Sludge of Dagu CanalMon Organic TN TP Cl- S042- Fe K Na Ca Mg Salt ESP Cl-l Mechanicalpoint mater (ppMJ (ppMJ (ppMJ (ppMJ (%J ( ( (%J (%J content (%f S042- constrution

2 1# 1.22 167 692 55.9 143 3.21 2.2u1 .17 4.25 1.67 0.02 9.315 0.39 sand soil

2# 0.45 27.7 892 1840 111 2.95 1.94 1.30 8.50 1.62 0.2 7.971 16.6 sand soil

3f 1.82 458 842 10.8 1750 3.22 2.23 0.947 4.11 1.68 0.18 7.771 0.01 sand soil

4# 1.57 101 857 9100 2930 3.00 1.60 1.14 4.63 1.64 1.2 9.492 3.11 Sandy loam

5# 0.55 651 642 912 709 2.36 1.94 1.62 3.25 1.14 0.16 15.71 1.29 Light loam

6# 0.64 555 688 176 328 2.40 1.90 1.42 2.44 1.30 0.05 15.01 0.54 Mid loam

7# 2.44 1640 896 2500 2530 2.72 2.04 1.23 4.11 1.71 0.5 10.41 0.99 sand soil

9# 1.41 330 648 1480 1890 3.116 1.99 1.05 4.61 1.57 0.34 8.481 0.78 Sandy loam

10# 7.19 1680 1110 38700 7590 2.48 1.86 2.07 5.03 1.89 4.63 15.53 5.1 Sandy loam

11# _ _ _ _- _ _- _ _ - -

12# 1.19 400 547. 4490 1210 3.06 2.04 1.09 4.93 1.62 0.57 8.556 3.71 Sandy loam

132 0.94 - 609 3440 1350 2.96 1.97 1.24 4.23 1.48 0.48 10.44 2.55 Sandy loam

6-35

Fig 6-35 Dagu Canal Substrate Mud Evaluation Results CollectionPnt No layer Mud thick- ness (m) Over stndrd factor Single factor Fertility status Soil type Saline- alkalini- zation Saline- alkalievaluation index Fetlt tts Si yestatus pattern

surface 0.55 AS, Zn, mineral oil 1.05/2.36/1.21 fertile sand Non-saline- alkalisublayer 0.30 general sand Non-saline- alkalisurface 1.0 fertile sand Minor saline- alkali Chloridesublayer 0.2 _ general sand Minor saline- alkali Chloridesurface 0.65 mineral oil 1.37 fertile sand Heavy saline- alkali Sulfatesublayer 0.35 fertile sand Non-saline- alkali Sulfate

4# surface 0.90 Zn, mineral oil 1.07/3.43 fertile sand Saline Sulfatesublayer 0.10 = fertile sandy loam Saline Sulfate- chloridesurface 1.05 mineral oil 3.97 fertile sand Saline Chloride- sulfatesublayer 0.30 __- general Light loam Alkali Sulfate- chloridesurface 0.90 mineral oil 2.14 fertile Sand Saline Sulfate- chloridesublayer 0.10 - general Mid loam Alkali Chloride- sulfatesurface 0.45 fertile sandy loam Saline Sulfate- chloridesublayer 0.20 fertile Sand Minor saline- alkali Chloride- sulfate

8# surface 1.0 Ni, Zn, mineral oil 12.9/2.0/1.97 fertile sandy loam Saline Sulfate- chloridesurface 0.80 fertile sandy loam Minor saline- alkali Sulfatesublayer 0.10 general sandy loam Minor saline- alkali Chloride- sulfatesurface 1.40 Zn. mineral oil 2.85/2.94 fertile sandy loam Saline Sulfate- chloridesublayer 0.30 Zn, mineral oil 1.17/1.05 fertile sandy loam Saline- alkali Sulfate

I1# surface 1.0 -- -- fertile sandy loam Saline sulfate12# surface 0.95 fertile sandy loam Saline sulfate

sublayer 0.45 -- X general sandy loam Mild saiine- alkali Sulfate- chloride13l surface 0.95 * fertile sandy loam Saline chloride13#

sublayer 0.45 general sandy loam Minor saline- alkali Sulfate- chloride

Note: '-i in the fig stands for no over standard factor

6-36

6.4.3 The monitoring and evaluation of status quo of famland soil on both sidesof Dagu Canal(1) IntroductionIn Sept 2001, site samplings were conducted on the farmland soil of both sidesof Dagu canal, the sampling points were set up at the spots of farm fieldscorresponding to the No 7 8 9 10 11 12 12 sampling points set up for thepurpose of monitoring substrate mud - together 7 points. The monitoringfrequence is one time conclusive sampling which contains one soil sampletaken from surface and one taken from sublayer (below 25cm). Theapproaches to the monitoring stand by the pertaining rules contained in 'SoilEnvironment Quality Standard" (GB156'8-1995). The monitored items includeorganic matter. TP. TN. Hg, Cd. Cr. As. Pb. Ni. Zn, mineral oils, TOC.Fe. K. Na. Ca, Mg, CL-> SQ42 and mechanic construction etc -20 indexesin all(2) Evaluation method and criteria

Hg. Cd, Cr. As, Pb, Zn. Ni, and mineral oils etc. - those harmful ingredientsare evaluated by singlie factor evaluation indexes, its standard goes byclass 2 of "Soil Environment Quality Standard" GB15618-1995. Formineral oils unspecified in the standard, evaluation was done with referenceto "Farming Sludge Pollutants Control Standard".

Single factor evaluation indexes:

C..

in which: Pij-j section I factor's evaluation indexCij-j section I factor's actual monitored concentrationCs1-I factor's environmental quality standard

TP, TN. organic substances etc, are chief indexes of soil fertility,evaluation was done adopting the comparative measure against thecorresponding background content of North China PlainFe, K, Na, Ca, Mg, CL- SO42 mechanical construction etc. are soil classificationindexes whereby to classify the farmland of both sides of the canal.

(3) Result analysisThe monitoring and evaluation of the harmful substances in the farmland soilon both sides of Dagu Canal are seen separately in fig 6-36 and 6-37.

6-37

Fig 6- 36 Result Monitored on He vy Metals and Mineral Oi s mg/kg

Total Total TotalPoint No layer Total arsenic Mineral oils Total zinc Total lead Total chrome

mercury nickel cadmium

Surface 0.257 10.7 1410 33.4 0.093 94.5 28.8 71.5

Sub- 0.151 23.3 479 27.5 0.074 88.7 23.5 55.2

surface 0.272 14.8 481 31.5 0.204 208 47.5 80.6

8#

sub- 0.11 14.6 740 34.3 0.185 186 41.2 80.5

surface 0.226 6.56 44.6 23.6 0.067 86.5 21.9 55.0

sub- 0.146 6.56 73.5 24.0 0.064 63.5 17.6 62.5

10# surface 0.027 14.1 108 34.4 0.118 87.8 24.8 70.2

surface 0.247 13.8 61.0 27.1 0.102 73.1 32.1 64.4

11#

sub- 0.186 15.6 9450 27.5 0.118 71.5 24.2 53.1

surface 0.158 11.6 136 29.2 0.093 72.1 26.8 62.1

1 2#

sub- 0.123 13.2 31900 31.1 0.094 76.5 31.1 66.9

surface 0.122 9.16 67.0 24.5 0.078 60.1 22.3 45.3

13#.

sub- 0.126 11.2 96400 30.3 0.072 62.6 20.5 59.4

Standare value 0.5 25 3000 50 0.3 250 300 200

Note: '-" in the fig stands for 'not monitored.

6-38

Fig 6-37 Result Monitored on Heavy Metals and Mineral Oils

Point Total Total Mineral Total Total Total Total Totallayer

No mercury arsenic oils nickel cadmium zinc lead chrome

surface 0.51 0.43 0.47 0.67 0.31 0.38 0.10 0.367#

sub- 0.30 0.93 0.16 0.55 0.25 0.35 0.08 0.28

surface 0.54 0.59 0.16 0.63 0.68 0.83 0.16 0.40

sub- 0.22 0.58 0.25 0.69 0.62 0.74 0.14 0.40

surface 0.45 0.26 0.01 0.47 0.22 0.35 0.07 0.28

sub- 0.29 0.26 0.02 0.48 0.21 0.25 0.06 0.31

10# surface 0.05 0.56 0.04 0.69 0.39 0.35 0.08 0.35

surface 0.49 0.55 0.02 0.54 0.34 0.29 0.11 0.3211#

sub- 0.37 0.62 3.15 0.55 0.39 0.29 0.08 0.27

surface 0.32 0.46 0.05 0.58 0.31 0.29 0.09 0.3112#

sub 0.25 0.53 10.63 0.62 0.31 0.31 0.10 0.33

surface 0.24 0.37 0.02 0.49 0.26 0.24 0.07 0.2313#

sub- 0.25 0.45 32.13 0.61 0.24 0.25 0.07 0.30

In the farmland soil on both sides of Dagu canal, all items of values are withinthe standard except the item of mineral oil values of sublayer at points 11#,12# and 13#which surpassed the limit of 'Farming Sludge Pollutants ControlStandard" GB4284-84. The heavy metals' content value at all monitoringpoints are all below the limit of class 2 "Soil Environmental Quality Standard" -an indication that the soil environmental quality on both sides of Dagu canal isnot bad.The soil classification indexes and soil fertility indexes on the farmland of bothsides are seen in fig 6-39 and the result of their evaluation and classificationare seen in fig 6-38From fig 6-38, we can tell that the soil pattern of farmland on both sides ofDagu canal is between sand and heavy loam with former as dominant. Soilfertility is all general leveled soil for all points except for surface layer of point8# and sublayer of point 10# which could be regarded as up to fertile soilstandard. The surface soil at points 10#, 11#, 12# and 13# is rather salinized tobe called in a state of salinization. The sublayer soil at point 7# is too slightly

6-39

salinized. Other points have not come up with salinization yet. All points arenot much alkalized and the salinization features mainly sulfate chloride typeand chloride type

Fig 6-38 Evaluation Results Collection of Farmland Soil on Both Sides ofDaqu nal

Single factor Saline-Points Over stnd Soil Saline-

Layer Depth (cm evaluation fertility alkalizationNo factor pattern alkalization

index type

Heavy Non- salineSurf. 0-25 _ - General soil

loam alkali

Sulfatesub- below 25 - general soil Sand soil Light salinized

chloride

Non- salinesurf. 0-25 _ - fertile soil Sand soil

alkali8#

Heavy Non- salinesub- below 25 general soil

loam alkali

Non- salinesurf. 0-25 - general soil Mid loam

alkali

Heavy Non- salinesub- below 25 _ - general soil

loam alkali

Sulfate10# sub- below 25 _ - fertile soil Light clay salinized

chloride

Sulfatesurf. 0-25 Mineral oil 3.15 general soil Sand soil salinized

11# chloride

sub- below 25 general soil Sand soil salinized Chloride

12# sub- below 25 Mineral oil 3.15 general soil Sand soil salinized Chloride

Sulfatesurf. 0-25 _ - general soil Sand salinized

chloride13#

Non- salinesub- below 25 Mineral oil 3.15 general soil Mid loam

I I I I I alkali

Note:' - stands for no overstandard factors

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Fig 6-39 Soil Classification Indexes and Soil Fertility Indexes Monitored and Computation Result for Farmland on Both sides of

Dagu CanalMon layer Organic TN TP Cl- S042- Fe K Na Ca Mg content ESP Cl-/ Mecha

poit lyer mattr (ppM) (ppM) (ppM) (ppM) (% (% (% (% (% otet) 02 nical

surf. 1.13 40.8 723 127 224 3.42 2.12 1.02 4.70 1.37 0.08 0.13 1.58 Heavyloam

sub- 0.86 283 598 479 304 2.62 1.82 1.16 2.30 1.36 0.28 0.12 1.93 sand I

surf. 1.25 795 616 1820 945 2.91 2.16 1.26 2.81 1.55 0.11 0.11 2.04 sand8#Hev

sub- 1.39 23.2 530 740 362 3.35 2.18 1.18 3.00 1.36 0.07 0.14 1.03 Heavy

surf. 0.27 98.2 541 379 368 2.34 1.80 1.48 3.75 1.18 0.14 0.12 1.19 Mid9# loal

sub- 0.40 360 576 735 616 2.65 1.76 1.35 4.25 1.33 0.05 0.07 0.31 Heavyloam

10# sub- 2.24 1412 859 108 351 3.24 2.02 0.85 4.71 1.31 1.42 0.12 3.42 Lightloam

surf. 0.80 312 588 11000 3220 2.97 2.03 1.54 4.14 1.71 1.30 0.15 2.70 sand11#

sub- 0.68 76.1 477 9450 3500 2.88 1.85 1.86 4.31 1.49 3.45 0.111 12.08 Sand

12# sub- 0.59 86.0 629 31900 2640 3.06 2.10 1.48 4.69 1.87 11.34 0.32 10.36 sand

surf. 1.535 18.65 469 103400 9980 3.02 2.11 6.575 6.785 2.365 12.63 0.17 3.22 Sandyloam13#

sub- 1.27 0.92 679 96400 29900 2.66 1.93 2.25 4.49 2.30 0.08 0.13 1.58 Mid loam

6-41

7.1 Working Range7.1.1 Pipe network ConstructionCleaning up the river course, laying the pipelines, building the pump station,requisition of the land, and pulling down the old houses.Cleaning up the river course mainly involves Fengchan River. The pipelinesconstruction involves Nan Cang and Bei Cang Project, Fukang Road Project,the Project of building draining pipelines in the south outskirts. Building thepump station involves the rain and sewagePump stations in the projects hereabove. Lands are requisitioned in the threeprojects. Except theFukang Road project, the other two projects both involve the removal of oldhouses.The project is planed to start in year 2002, and to finish in year 2003, lasting 2years. In 2002,The wok includes prospecting, designing, pre-construction work, inviting bid forequipments, andfor a portion of land construction of the pump station and laying of the pipelines.In 2003, thefollowing should be finished: laying the pipelines, land construction of thepump stations,installation and adjustment of equipments, post-construction work,experimenting to operate, andchecking before completion.

7.1.2 The Working Range of Shuanglin sewage disposal project1) Building a sewage disposal plant2) Installing the main pipes of intaking and draining for the plant3) Setting up a new pump station, Songjiang Road pump stationThe construction of the sewage disposal plant deals with three parts: non-processing area, sewage processing area, and sludge processing area.The non-processing area is built as the residential and administrative area inthe northeast of the plant. The main buildings in that area include garage,warehouse, repairing and replacing room, reception office, and anadministration building with a general control office, experiment and analysissection, offices, meeting rooms, dining room, and multifunctional hall, etc. Thesewage processing system is built in the sewage processing area. The sludgeprocessing building, methane-generating cabinet, methane torch arecontained in the sludge processing area.The project of laying the pipelines goes on parallel in two routes. One startsfrom Shuanglin pump station, along Pioneer Sewage River, to Shuanglinsewage disposal plant. The other starts from Shuanglin Road, southward toSongjiang Road, then eastward through the old Songjiang pump station intoPioneer River where it converges with the first route (see the attached figure).

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The new Songjiang pump station locates on the converging spot.The works involve requisition of lands, removal of old houses, removal of earth,laying pipelines, refilling the earth, and construction of the pump station.According to the operating plan of the project, the pipelines with the length of9640m will be laid till the year 2005. Shuanglin sewage disposal factory and anew Songjiang Road pump station will be set up then.The project lasts from Jan. 2004 to the end of year 2005. At the end of 2005,the project will be checked before completion.

7.1.3 Regulating Dagu Sewage RiverThe project consists of five parts, including dredging the river course,reinforcing the banks, strengthening the brickworks, reforming the buildings,rebuilding and reforming the pump station (see the table 7-1, 7-2, 7-3).

Table 7-1 The amount of work and way of working when dredging the rivercourse

Two kinds I7\Project Amount of bsorbing Dredging Dehydration Transportation Concealed Burying the

ategory dredging arth earth of sludge of dry sludge transportation sludge_ _ ~~~~~~~~y machines _ _ __ _

Unit thousandm 3 thousan dm 3 ten ten thousandm3 ten thousandm3 tenthousand__ thousand__ I _ ___ __ _ _ __ ___ _ thousandm

Amount 230 112 118 6720 63.2 36.3 80

Table 7-2 The amount of work when reinforcing the banks, strengthening thebrickworks and reforing the buildings

\ project _ _ Protectingproject ~~~~~~~~~~~~~~andReinforci Digging Refilling Repairing the SPiphe Aqueducto

ng the earth on the earth on the ;' and thelroads f of Outletbank slpe o rier lopeof ver )t-k sustaining railroads ning Sluice\ banks slope of river slope of rver the bridge and

catego ~~~~~~~~~~~~~~~~~~~naturalcategory ___________ gas bridge

Ten ten ten ten tenUnit thousand thousandm3 thousandm3 thousand thousandm3 set m set

m3 m3 ___

Amount 83.64 8.6 5.16 8.52 1.23 9 3868 5of w ork_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

On Dagu Sewage river stands altogether three halfway lifting pump stations,namely, Paoshui Depression pump station, Juge Village pump station, EastDagu pump station. Paoshui Depression pump station which was built in 1958can't meet the need of normal operation and should be rebuilt. The operatingcondition of other two pump stations is normal , hence land construction andreforming, or rebuilding are not needed.

7-2

7.2 The analysis of effect of floating dust in the working period and theprotective measures7.2.1The analysis of effect of floating dust in the working periodIn the working period of the project, floating dust mainly results from thefollowing activities: digging the earth, refilling the earth and temporarilyheaping the earth in the field, transporting the building materials (lime, grit,cement, bricks, etc.) and heaping them in the field, sweeping and piling therubbish in the field, moving of the vehicles and machines in the field, and dustleaking from the vehicles transporting the earth.The measures to control the floating dust in the field are to place enclosingcloth around the field and spraying water to reduce the dust.In June, 1992, Beijing Environmental Sciences Institute examined thecondition of floating dust in the fields of four construction projects among whichtwo used the enclosing cloth and two not, when the speed of wind was 2.4 m/s.See the result in Table 7-3.

Table 7-3 The pollution condition of the environment polluted byfloati g dust in the working period

Density of TSP (mg/m3)

Project Enclosure Downward along the wind from the working field Compa-Project Enclosure Downward along ~~~~~~~rative spot

20m 50m 10Gm 150m 200m 250m Upward theI _ __ _wind

Tiantan Temple section onthe southem part of the No 1.54 0.981 0.635 0.611 0.504 0.401

second circular route I_ITaoran Pavilion section on _ 0.404

the southern part of the No 1.467 0.863 0.568 0.570 0.519 0.411second circular route I

Average 1.503 0.922 0.602 0.591 0.512 0.406

Reforming project of thewestem part of the second Steel lath 0.943 0.577 0.416 0.421 0.417 0.420

circular routeChegongzhuang Village Colored 0.419West Road heat power cloth 1105 0.674 0.453 0.420 0.421 0.417

projectclt

Average 1.042 0.626 0.435 0.421 0.419 0.419

As can be seen from the examination result, the pollution caused by floatingdust in the field without enclosing cloth is very serious, which can affect theplace 250 meters away from the spot downward along the wind. The averagedensity of TSP in the affected areas is 0.756 mg/iM3, which is 1.87 times of thatof the comparative spot and 2.52 times of the level of standard air quality. Withthe enclosing cloth, the condition is much better. The area polluted by floatingdust is within 200 meters downward along the wind. The average density ofTSP in the affected area under this condition is reduced one quarter and is0.585mg/m 3 which is 1.4 times of that of the comparative spot and 1.95 timesof the level of standard air quality.

7-3

The floating dust can be reduced 50-70% if spraying water(4-5 times per day)on the road where vehicles move and on the places where dust is likely to fly.See the result of the experiment of spraying water to reduce dust during theworking period. (unit: mg/m3)

Table 7-4 The result of the experiment of spraying water to reduce the dust inthe working period (Unit: mg/m3)

Distance m 5 20 50 100

Not spray 10.14 2.89 1.15 0.86Average density of water

TSP per hour .Spray water 2.01 1.40 0.67 0.60

Percentage of decreasing (%) 80.2 51.6 41.7 30.2

The result above shows that effective measures of spraying water to reducedust can largely decrease the pollution caused by floating dust in the workingfield, meeting the requirement of limited dust density in the Standard ofComprehensive Discharge of Air Pollutant (GB16297-1996) within the distanceof 20-50m.7.2.2 The protective measuresIn order to reduce the effect of floating dust to the environment, the followingmeasures are necessary during the working period:* In the working field where nearby exists the residential area, or the river

course of villages, the enclosure around the field are necessary forseparating the buildings around from the field.

* In the working field which is near the residential area, villages, themeasure of spraying water can be taken to reduce the amount of floatingdust.

The spot where the grit and concrete is mixed should be set as far from theresidential area as possible in order to reduce the harmful effect of floatingdust by mixing the concrete to the sensitive objects.

* In the working period the activities including removing and refilling theearth, casting the concrete, building the roads, and transporting which maycause heavy floating dust should be done under the weather withoutstrong wind. It would be the best to fix the mixing spot and piles ofmaterials for the convenience of taking anti-dust measures.

* Transporting vehicles should decrease the speed when driving near theresidential areas and villages. Overload is forbidden. Drive strictlyaccording to the set route and time. Effective covering is required forpreventing to increase the floating dust on the road.

* In the plan of arranging specific construction, the reasonable arrangementof space and time of transportation should be considered, escapingexcessive concentration to increase the effects of the road burdens and

7-4

e the flying dirt in a certain period.7.3 The Analysis of the effects on Stink Gas during the work of regulating DaguSewage River and the anti-pollution measure7.3.1 The Analysis of the effects on Stink Gas during the work of regulatingDagu Sewage RiverDuring the process of desilting river course, because of stirring the silt, there ase of stink gas will be strengthened, and some bad effects will be causedto the surrounding. Take the simulating experimental measures to predict therange and degree of the effects to the nearby air circumstance of desilting.Simulating experiment: on the section of Xincheng Bridge and XinYuan Bridgeof Dagu Sewage River, the center of river course remove the bottom silt. Atthe same time, in the center of the river course, a monitor pot is setrespectively at upwind 20m and downwind 50m. The density of H2S, NH3 andstink gas are monitored synchronously. The result is as Table 7-5.

Table 7-5 The Result of The Simulating Monitor of The Stink Gas (unit:mg/m3, stink gas density is limitless)

Monitor pot Stink gas H2S NH3density _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

Upwind 20m 10 0.003 0.058

XinYuanBridge The centerof the river 12 0.001 0.55course

Downwind 50m 10 0.003 0.068

Upwind 20m 10 0.002 0.137

Xin Cheng The center of the river 33.9 0.004 0.077Bridge course

Downwind 50m 32.4 0.003 0.294

DB12/-059-95 environmental control 20 0.06 1.5

standard

From the experimental result of the Table 7-5, the main stink pollution of theconstruction is the density of stink gas. At the place of 50m away from theconstruction river course, the stink gas density is up to 32 and more, which isbeyond DB12/-059-95 <environmental control standard limits of the stinkpollution discharging standard>. Furthermore, according to the assessingreport of environmental effects of old Qiangzi River reform construction, duringthe process of the assess, , the simulating experiment was carried out on theconstruction condition. It took the method of stirring silt on the spot as thesimulating experimental measure, and the stink gas density was monitoredsynchronously in the river course and at the places of downwind 50m and1 OOm.Simulating experiment time: 13 Feb, 1999

7-5

The weather condition on spot: cloudy after fine, wind toward southwest, windforce 3-4 grade, the highest temperature 8CThe simulating experimental result is as following Table7-6 and Table 7-7

Table7-6 Changing state of stink gas under the simulating constructioncondition

BaLiTai MaChangRoad No4 Road DaguRoadproject

Not stir stir Not stir stir Not stir stir Not stir stir

NH3(mg/m3) 4.621 6.698 1.427 3.261 3.162 6.119 3.424 5.379

H2S(mg/m3) 0.026 0.041 0.027 0.039 0.032 0.050 0.031 0.047

Stink gas density 2500 6500 2500 6500 6500 65000 2500 6500

Table 7-7 The changing state of simulating the working condition at differentdownwind places

Item Center of the rver Away from the nver Away from the nvercourse course 50m course 100m

Ammonia(mg/m3) 6.119 4.368 1.392

Sulphur compound 0.050 0.023 0.014hydrogen (mg/m3)

Density of stink gas 65000 6500 2200(times)

The result of the simulating experiment shows the stink materials will beincreased double times in the course of discharging and desilting, and pollutethe environment heavily. The density of ammonia, sulpur compound hydrogenand stink gas will far exceed the national standard. The main factors thatexceed the standard are: density of stink gas (650-6500 times) ammonia (26-34 times) sulphur compound hydrogen(3.9-5.0 times). At the place ofdownwind 100 meters, the density of stink gas still exceed the standard, butthe pollution decrease obviously. The experiment shows that the decreasingrate per 100m is as following:ammonia(77%) sulphur compound hydrogen(72%) density of stink gas(90%).7.3.2 Prevention and cureIn order to decrease the effect of stink gas during regulating Dagu SewageRiver, the following measures will be carried in the operation.(1 ) Since the river near the residential area and villages, we should use the

advanced technology and equipment, for example, to take continous desiltingmethod and transfer them in sealed way, in order to decrease the stink gasaffect to the sensitive objects.(2) Draining water and removing sludge need working efficiency. We must

shorten the working time so as to control the degree and range of stink gas

7-6

pollution at the lowest and not to disturb the residents. We shouldn't work innight.

7.4 Analyzing the effect of noise during work and the Anti-pollutionMeasures7.4.1 The cause and intensity of noise pollution during the working periodDuring the working period, the main sources of noise are the machinery in theworking place and traffic. Theses noises are of temporary, staged andinconstant features. The main source of noise are bulldozer, wind pock, aircompressed machine, loading machine, excavator, concrete pump, vibrator,transport cars, etc. According to the comparing data, the levels of thesemachines are on the following Table.

Table 7-8 The noise level of main working machines (dB (A))

Machine name Noise level Machine name Noise level

bulldozer 85 Air-compressed 110machine

Loading truck ( 85-94 Welding machine 7810tons)

crane 76 grafter 80

Road roller 84 Concrete pump station 85

Excavator 80-93 Air hammer, wind pick 82-98

Vibrating and pounding 105stickII

7.4.2The effect of noise to the environment in the working periodThe formula of decreasing with distance can be used to predict the effectcaused by the noise of various machines and the noise by transporting buildingmaterials in the working field.

rLp = L. - 20 Ig-- R- (r - r,)

9 +: Lp The levelr9f sound pressure at the spot where sound is received(the affected spot), dB(A);Lw-The level of sound pressure of the source of sound, dB(A);r-The distance between the source of sound and the spot where sound isreceived, m;r 0 -The reference distance, m, take r=1m;R--The amount of sound insulated by the protective structure andbuildings, takeR=OdB(A) when working without covering;a - -The coefficient of air's absorbing of sound waves dB(A)/m,

0.008dB(A)/me.The formula above can be used to predict the degree of decreasing of the

7-7

noise from major sources in the working field in the project. See the result inTable 7-9.

Table7-9 The predicted result of the decreasing of the noise from the majorspot sourcesD Unit: dB (A)

Source of noise Distance m Limit@)

Machines iI& i 10 20 40 60 80 100 200 300 Day Night

Bulldozer 85 64.9 58.8 52.6 49.0 46.3 44.2 37.4 - 75 55

Loadingtruck 90 69.9 63.8 57.6 54.0 51.3 49.2 42.4 38.1 75 55

>-10ton) I_ __ _ I_

Crane 76 55.9 49.8 43.6 40.0 37.3 - - - 65 55

Road roller 84 63.9 57.8 51.6 48.0 45.3 43.2 - - 75 55

Excavator 87 66.9 60.8 54.6 51.0 48.3 46.2 39.4 - 75 55

Vibratingand 105 84.9 78.8 72.6 69.0 66.3 64.2 57.4 53.1 70 55

poundingstickAir

compress- 100 79.9 73.8 67.6 64.0 61.3 59.2 52.4 48.1 75 55ing machine I I I

Welding 78 57.9 51.8 45.6 42.0 39.3 37.2 - 65 55machine

Flat shovel 80 59.9 53.8 47.6 44.0 41.3 39.2 - - 75 55

Concrete 85 64.9 58.8 52.6 49.0 46.3 44.2 37.4 - 70 55pum p__ _ __ _ __ _ __ _

Airhammer, 90 69.9 63.8 57.6 54.0 51.3 49.2 42.4 38.1 75 55wind pick I _

note: (DThe figures in the table are counted according to the condition without covering.The insulation

effect of the covering is not taken into account:

®The standard limited value is taken from The Limited Value In the Construction Field GB12523

-90.

7.4.3 The prevention and treatmentsIn order to reduce the effects of the construction noises to the surrounding, theconstruction units should take the following measures:The low noise instruments should be chosen as possible, for example, theliquid press machine instead of the oil power machine; the high frequencyvibrating beating machine; the fixed machine and transportation machine (asdigging machine, pushing machine and so on). The noises can be decreasedthrough the bumper in the way of discharging gas pipes and by separating theengine parts to decrease noises. The periodical maintenance and repairing of

7-8

the machines should be taken to assure that they are normally working in lownoises. High noise construction machines should be fixed by bumpers ordecreasing noises instruments, for example, by fixing muffler cap on someconstruction machine.According to Tianjin Environment Protection Law (1998) No.227 ((Notice AboutFurther Strengthening the Management of Night Construction noises)), arrangeproperly the construction time. Forbid the construction work which caused thenoises from 23 pm. to 6 am (the piling time should be 22pm. to 7am.).Formulate construction plan reasonably. The work time of the machine whichcauses noises should be controlled and managed strictly. We must try to avoidusing too many high-noise machines in the same area and at the same time.Distribute the work places reasonably, to avoid high-noise level partially. Payattention to utilize the natural condition to decrease noises, and to reduce thenoise effect of work process to the least as possible.Set up the temporary noise barrier on the work place, to reduce the noiseeffect of work place from the surrounding. As for the machine which has therelatively fix position, We'd better to put them in the working shed. If themachine can not be placed in the working shed, the one side noise barriershould be set up.

7.5 The Analysis of Solid Waste Influence and the Anti-pollutionTreatmentsIn this project, the main solid waste is filth during the work period. The detailis in chapter 9.

7.6 The Analysis of Transportation Effects During the Work Period7.6.1The Analysis of Transportation Effects During the Pipe Net ConstructionPeriodThere are two aspects about the pipe net construction period to thetransportation: one is that taking over road and digging up road and rebuildingroad will affect the traffic; two is that transportation of material and solid wastewill increase the vehicle numbers on the road.The large amount of construction materials (include sands and cement) andthe work machine should be transferred from outside of the city. It is estimatedthat we need 6000 cars. According to analysis result, the solid waste of thisproject is about 22500 m3 , due to car loading is 8m 3/car , so the transportationof the solid waste is about 2800 cars. Considering that the transportation ofthe solid waste only influences to the special road of Fengchan River desilting,hence, the effect to the roads within the city is about 25 thousand cars. Thismust increase the cars in certain roads during the work. According toanalogical experience, drafting the working plan properly and carrying it outstrictly, and at the same time, strengthening the management, the increase ofthe cars will not affect the traffic seriously, and this affect is also temporary.

7-9

Wwhen the work completes, the affect will also disappear.7.6.2 The analyze of traffic effect during the work of Shuanglin SewageDisposal factoryThe main work of this factory is laying out the pipeline for draining water,mainly about working on the foundation. The pipelines on the main streetshave already been done, so this work may affect the traffic slightly.7.6.3 The analyze of traffic effect during the work of regulating Dagu SewageRiverThe transporting amount needed in the work is in the following Table 7-12.Form it we can see that, the total amount of material and silt to transport is781.1 thousand cubic meter. Assuming the work continues three years andeach year it will be about 210 days, the work will need 310 cars per day. Themain way to transport is truck. Since the course are all along the river, andmost of the courses are within the suburban district of Tianjin. The workingsites are distributed along the course and sparsely, hence, the work will notinfluence the local transport seriously.

Table 7-12 The amount of transport needed during the work transport courseQuantity of

name material materal (thousand (per day) Transport course

Dike Cubic metre of 5.16 14 Cars along river

Protection slope Sand and stone 8.52 34 Mainly on the highway

Reform of the Sand and stone 1.23 5 Mainly on the highwayconstruction

Sludge bury Dry silt 63.2 257 Cars along river

total 78.11 310

7.6.4 Preventing and TreatmentsThe working plan must be made reasonably and systematically. The building ofpipeline and the reconstruction of road should be arranged in harmony. Avoidrepeat working on the same section.Make the arrangement of the vehicles and transport courses rationally so as toavoid the busy traffic roads and the rush hours.On the prerequisite of ensuring working quality, the working period should beshorten, and the pipeline work (including road digging, laying pipeline, refillingsilt, renovating, and cleaning up, etc) should be finished in the shortest time.Using the advanced management and technology ( for example, workingsectional laying the pipes on the top , etc) to reduce the volume of earthwork,and relatively, the volume of transportation.In order to avoid traffic jam and the road-occupying for a long time, sometemporary road may be built when necessary.

7-10

7.7 Analyzing the effect of water conditions of Dagu Sewage River andthe control policy7.7.1 Analyzing the effect of water conditions during the workThe waste water is mainly produced from the following five ways.

(1 ) Water from silt: since the silt contains a lot of water, it needs the machineto dehydrate, thus, the water is produced from the working. The surface of thesilt consists of 95% water. After dehydration, it contains 75% water. Hence wecan estimate that every cubic meter silt will produce 0.5cubic meter water(2) Water from washing the sand and stone: Washing every one cubic meter

sand will produce 1.2 cubic meter waste water.(3) Water from washing the machines: Every machine needs 0.06cubic meter

water every day. The main polluted matters in it are petroleum and float.(4) Maintain one cubic meter concrete will produce 0.35 cubic meter alkali

water.(5) Waste water from living place: The waste water produced by workers

including toilet water and cooking water. The main polluted matters are CODand BOD. The average living water is 1001 L per day, and it produces wastewater 801 L, the estimative result is on Table 7-13.

Table 7-13 Estimate the quantity of waste water in working periodIndex per day Silt dehydration Washing sand machine Alkali water Life waste totalWashng saond Washinge lai ae water

Quantity of Quantity of 1Quantity of Maintaining Workeworkneridy df sanity of8m1 sand and stone 30/d concrete Wre

work___per day _deilt_248m3_ 155m3/d _______ 20m3/d 200/d

Dischargecapacity 1474 186 1.8 7.5 16 1685.3(m3/d)

% 87.5 11.0 0.1 0.6 0.9 100

Note: Take 630 days as working days

The result shows that, dehydration of silt and washing water of sand and stoneare the main source of waste water. It contains 98.5% of the total waste water.Relatively, the quantity of waste water from washing machines and living issmall and discharge sparsely. The waste water can be drained into the DaguSewage River nearby and won't bring some bad effects to the water quality ofthe River obviously.In order to understand the water property dehydrated from the silt, inNovember, 2001 , we did the experiment about the silt water with the purposeto foresee the harm materials releasing from dehydration, so as to foretell thepossible effect to the surroundings. The equipment of the experiment iscentrifuge. We sample the silt on the separate silt supervising positions #,#,#and #. Let the sample centrifugalize with 3000 turns/min, then analyze thecomponent of the upper liquid, and compare the result with GB8978-1996(comprehensive standard of draining foul water)) the second grade standard.

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The results show in Table 7-14.

Table 7-14 Monitoring results of the component in the water(mg/I, except pH)

point 1# 2# 3# 4# Average GB8978-1996item_____ ________ _______ value Second grade

PH 7.66 7.50 7.39 E NWu9 7.55 6-9

Zn - 0.075 0.062 0.0535 0.064 5.0

Ni 0.077 0.022 0.717 0.749 0.391 1.0

Cu 0.015 0.015 0.097 0.082 0.052 2.0

Soluble iron 0.368 0.912 1.509 1.33 1.030 -

Cd 0.00661 0.0099 0.245 0.225 0.122 0.1

Pb - - 1.138 1.225 1.1815 1.0

Cr(total) 0.123 - 1.679 0.741 0.8477 1.5

Ammonia-nitrogen 65 91 72 71 74.75 25

Nitricacid nitrogen 20 26 26 23 23.75

Nitrite nitrogen 0.8 1.0 1.1 1.5 1.1 -

Volatile phenol - - 0.04 0.06 0.05 0.5

CODCr 240.24 225.28 920 946 582.88 150

BOD 75.7 59.2 285.0 290.5 177.6 30

From the Table 7-14, we can see that the density of the pollutions siltcontaining cadmium, lead, ammonia-nitrogen, chemical needful oxygen andbiochemistry needful oxygen all exceed the limits of GB8978-1996

((comprehensive standard of draining foul water)) the second grade standard.The main pollutions are ammonia-nitrogen, chemical needful oxygen andbiochemistry needful oxygen. It's mentionable that, this experiment didn'tdetermine the density of float, but the content of float in the dehydrated isgenerally high. Hence, if the waste water that not being disposed but drainedout to the river, it will pollute the water there to some extent.7.7.2 The Prevention and TreatmentsSince the living area is usually near the working place, we suggest that on thenarrow working place, some precipitated ponds and some draining ditches arenecessarily built in order to take the first grade disposal of the water mixer fromdehydration, washing sand and stone and living place.

To predict the quality of mixer water, using the model of total mixing and one-dimension decomposing.The model of total mixing:

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ZCiQi

In the formula: C0-density of pollution in the precipitated pond, mg/I.C 1 -different density of every component in the waste water, mg/I.Q -all partially waste water production, m3/d.one dimension model:

C=Coexp(-kt)In the model: K the pollution attenuation coefficient, 1/do In the calculation,NH3 attenuation coefficient is also 0.25, BOD attenuation coefficient is 0.53,heavy metal attenuation coefficient is 0.1 0t the capacity time in the sediment of the waste water, doThe main water pollution from washing sands is SS. The density of content ofheavy metal, NH3, COD and BOD, has not changed a lot, so the density ofchemical oxygen needed and the biological oxygen needed and Ge, lead, NH3,can be taken from the present water quality of Dagu Sewage River. Theresult is in Table 7-15.

Table 7-15 The result of disposal waste water in mixed sediment(unit: mg/L)

The type of the filth Water Ge lead NH3 CODCr BOD5quantity(tld) _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

Water out of 1474 0.122 1.182 74.75 582.88 177.6

Before the filth _ _ _ _ _ _ _ _ _ _ _ _ _

meixi°nge Water frommixing washing 186 0.0025 0.043 21.11 221 76

sa n d s _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

The density after mixing 1660 0.109 1.05 68.74 542.3 166.2

The density after one 1660 0.10 0.95 46.1 363.5 91.2day of mixing 1660 ____ 09 461 335 12

The density after two 1660 0.09 0.86 30.9 243.7 50.1day of mixing I_____

The density after three 1660 0.08 0.78 20.7 163.3 27.5day of mixing

GB8978-1996 the - 0.1 1.0 25 150 30Second_grade I__ __ _ _ __ _ _ _ _ _ __ _ _ _ _ _ __ _ _ _ _ _ __ _ _ _ _ _

From Table7-5, the mixed sediment can get to the second standard GB8978-1 996,<the filth discharging standard> after three days.Some suggestions:(D The desilting water, water from washing sands, domestic sewage can notdischarge to the nearby fields. They must be collected and then dischargedinto Dagu Sewage River after sediment.© The scale and the quantity of the sedimental pond and the distribution ofdraining channels are designed as environmental protection supplementary tothe whole project after its planning. Their expense and planning should belisted in the whole project, or, the same scale movable vehicle for disposingfilth can also be used.

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8 The Assessment of the Environmental Impact Duringthe Working Period8.1 The Assessment of the Environmental Impact on Surface Water8.1.1 The Assessment of the Environmental Impact on Surface Water byShuang Lin sewage disposal Factory(1) A general introduction to the recent water quality of Dagu Sewage Riverand Shuanglin drainage system these years.

Shuanglin drainage system is a subsystem of Dagu Sewage River.Drainage distribution between Dagu Sewage River and Shuanglin drainagesystem in 2000 is shown in Table 8-1.

Table 8-1 The Quantity and Quality of Dagu Sewage River and Shuanglindrainage system t/a

Drainage systemItems ShuangLin Dagu Sewage Proportion (%)

Sewage River RiverSewage quantity 3.14x107 2.60x107 12.06

Suspended matter 8251 28196 29.26Chemical oxygen 13556 60678 22.34

consumption

Biological oxygen 4344 24478 17.75consumption

Volatile phenol 7.851 38.78 20.24Cyanide 3.360 4.394 76.47

Arsenic compound 0.163 1.031 15.81chromium 2.135 14.73 14.49

Ge 0.123 0.577 21.32Hg 0.009 0.084 10.71

See table 8-2 The Quantity of Dagu Drainage System (1996-2000).

8-2 The Quantity of Dagu Drainage System (1996-2000) t/a

year Drainage SystemJiZhuangZi

sewage XianYangRoa Totaldisposal JiZhuangZi Shuanglin

disposal dPlant

1996 9.08X107 8.01X107 1.45x1o8 6.75x107 3.82x 108

1997 9.08X107 7.82x107 1.41X108 5.43x107 3.65x1O

1998 5.81X107 9.94x107 1.36x108 3.97x107 3.33x108

1999 4.94x107 1.02xlo8 1.09xlo8 3.52x107 2.95x1 08

2000 9.06x107 3.62x107 1.02x108 3.14x107 2.60x108

8-1

(2)the estimation of the water quality and quantity of Shuanglin DrainagesystemThe density of discharged pollutant (1999-April 2001 ) is listed in table 8-3. From the statistics, we can see the major pollutants BOD, COD, petrolleum,volatile phneol, sulphide, chloride, ammonia nitrogen, nitrite, fluoride, andphosphorus have all exceeded the standards.

Table 8-3 The density of Discharged pollutants froml999-April, 2001mg/ L(except pH)

Evaluation.0 ~~~~~~~~~~~~~~Y 2001 (Jan.- Average standard

E - pollutant Y 1999 Y 2000 Apri.) vale GHBndardZ type

1 Mercury 0.0011 0.0002 0.0003 0.0006 0.001

2 cadmium 0.0393 0.0039 0.0006 0.0186 0.01

3 Chromium 0.0748 0.0682 0.0595 0.0698 0.1 (A X 14)

4 Arsenic 0.0024 0.0051 0.0029 0.0036 0.1

5 Nickel 0.0925 0.1825 0.2775 0.1575

6 PH 7.5500 7.2658 7.3225 7.3957 6-97 Suspended 226.0000 262.7500 339.2500 257.9586

8 Biochemical 145.5333 138.3333 195.5000 149.5857 10

9 oChenmical 406.667 431.6664 454.2500 424.1786 40oxygen need

10 Mineral oil 23.7333 12.3817 4.1250 16.0671 1.0

11 Volatile phenol 0.2167 0.2823 0.3750 0.2679 0.1

12 Sulfide 5.7833 5.7167 5.1000 5.6571 1.0

13 Chloride 275.2500 295.7500 345.7500 294.1071 250

14 Ammonia 32.7333 38.5667 40.2500 36.3071 1.5nitrogen _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

15 Nitrite nitrogen 0.1900 0.1234 0.0863 0.1466 1.0

16 Fluoride 1.8150 1.2433 1.6500 1.5464 1.5

17 Copper 0.0800 0.0592 0.1150 0.0761 1.0

18 Zinc 0.4108 0.2175 0.1950 0.2971 2.0

19 Lead 0.1528 0.1149 0.2487 0.1503 0.1

20 Ferunm 13.2367 6.2167 4.6100 8.9957

21 Manganese 0.3617 0.2317 0.1950 0.2822 1.0

22 Cyanide 0.4420 0.1101 0.1740 0.2615

23 Solid 1622.8333 1389.6667 1875.0000 1558.9286

24 Dissolvable 1398.9167 1125.0000 1535.0000 1300.9643so lid_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _

Sodium alkyl25 benzene 3.6450 3.7750 4.8450 3.8721

sulfonate26 Phosphorus 2.8025 3.0696 4.4800 3.1566 0.2

27 Nitrogen 45.5917 48.8750 67.8000 50.1714

8-2

Shuanglin pump station's monitoring results of the year 2000 and this year islisted in Table 8-4

Table 8-4 Shuanglin pump station's water qualitymg/L(excluding pH)

Items Y 2000 This year's monitoringresults GHZB 1-1999V type

PH 7.28 6-9

SS 262 202

COD 392.29 322 10

BOD 138.33 40

Ammonia Ammonia ~~~~~5.03 1.5nitrogen 5_03_ __ _

Phosphoric-acid 1.52 0.2 (totalsalt phosphorus)

Petroleum 4.68 1.0

Volatile phenol 0.25 0.379 0.1

Cyanic 0.107 0.269compound

mercury 0.0003 Not check out 0.001

cadmium 0.0039 Not check out 0.01

arsenic 0.0052 Not check out 0.1

lead Not check out 0.1

Six-valence0.068 0.010 0.1

chromium

nickel 0.08

Sulphuric Not check out 1.0compound

When the waste water disposing factory is completed (year2001) thedaily quantity of draining water will reach to 20X1 04Vtd, and long-term quantitywill be30X104t1d, at that time, the pollution will also increase, the utmost

quantity is listed in 8-5.

- 8-3

List 8-5 The quantity of pollutions in Shuanglin draining waste water riverVta

item Year 2000 Year 2010 Long-term

Quantity of waste water 31.4X103 73X108 109.5X106

float 8251 19140 28710

Chemical consuming oxygen 13560 31450 47180

Biochemistry needful oxygen 4344 10080 15120

Volatile phenol 7.851 18.21 27.32

Cyanic compound 3.360 7.795 11.693

arsenic 0.163 0.378 0.567

Total chromium 2.135 4.953 7.430

cadmium 0.123 0.285 0.428

mercury 0.009 0.021 0.031

NH,-N 1140.2 2650.4 3975.6

TP 99.13 230.43 345.65

(3) Analyze the item of disposing waste water factoryWhen the disposing waste water factory is completed, it can let the wastewater in Shuanglin draining system totally reach to the criteria, it will benefit thearea of 2700 hectare, and people of over 351 thousand.The reduction of pollutants after the completion of the project is listed in Table8-6.

Table 8-6 The reduction of pollutants in Shuanglin Drainage Systemt/a

Items BOD COD SS NH3-N TP

Reduction rate (%) 81 72 89 . 39 71

Short-term reduction 8163.2 22644 17036 1033.7 163.6

Long-term reduction 12245 33966 25554 1550.5 245.4

It can be known from the calculation results in the table that after the foundingof the sewage disposal plant, the pollutants discharged into the PioneerDrainage River would be greatly reduced. And after the project of desilting thePioneer Drainage River is finished, the river can be expected to be clearer.The tail water of this project is discharged into the Pioneer Drainage River,bypassing Juge Village and finally entering the Dagu Drainage River. Theconstruction of this project will have a positive effect on the Dagu DrainageRiver, and thus reduce the pollutants discharged into the Bohai Bay andimprove the water quality of the Bohai Bay and the ecological environment.At present, the tail water of this project is chiefly used to irrigate farm fields.When the project is finished, the crops in this region would be irrigated by

8-4

qualified water and the agricultural ecology would be improved as well.Furthermore, when it is possible the tail water produced by the sewagedisposal plant could be recycled and a normal water system could beestablished, which would solve the water shortage problem of Tianjin.

8.1.2 The assessment of the Environmental Effects of the pipe networkconstruction surface water(1) The forecast of the improvement of the Hai river's water quality after theproject (the second sluice)1 ) The total quantity of Hai river sewage and pollutants cut off after project

After the project is finished, the separation of the rain and the sewage willbe realized, and the ChangQin leading river will be changed into water-collecting system of Shuanglin factory. The quantity of sewage from the cuttingoff is seen in Table8-7.

Table8-7 pollutants(unit: water quantity is ten thousand tons/year, Cr, Cd, Hg is kg/a, others

are Va)Water quantity 2532.16

SS 1815.9 Phosphate 25.0CODcr 2177.2 Zn 5.9BOD5 475.5 Ni 16.55NH4-N 106.5 Cd 0.53

oil 657.3 Hg 0.04Cr 9.35

2) The forecast of the discharged rain water qualityAfter project is finished, within the range of the construction(the rain watercollection range), there will not be any problem of the mixing of rain andsewage flowing into FengChan river, FuKang river, NanWeiDi river, and Hairiver. The water quality of TongAn road, JianGo road rain water pipe terminalpump stations are chosen as that of the tail water of the pump station, seetable8-8. 8-9 and 8-10.Comparative pump station and pump station to be built are both rain pumpstation. Meantime, the rain water excluded from the planned pump station willenter Beiyun River, Haihe River after the sediment through Fengchan River,Fukang Road River and South Bank River, which excel comparative pumpstation.Therefore after setting up the rain water draining pipelines in the area andimproving the pump stations by this project, the quality of water which flows toFengchan River, Fukang Road River and South Weijin River and then enterHaihe River in the flood season.The above four pollution factors can representatively illustrate all substances

8-5

except BOD exceeds the type IV standards in The Environmental QualityStandards for Surface Water (GHZBI-1999) , SS is lower than the surfacewater quality required by The Technical Regulation of Water EnvironmentalQuality Report Composing. The water quality would basically reach therequirements of Hai River, and improve a lot.

Table8-8 The brief condition of analogised pumps station and planned pumpstation

Drainage drain areaName Character capacity (hectare) Characteristics

M3/s

Pump station of Diverging 1.8 41 Rain drains directly to Haihe RiverTai'an Road System

Pump station of Divergi'ngPianGump ion Rof Divtergig 0.95 39 Rain drains directly to Haihe RiverJian Guo Road System ______

Pump station of Feng chan river's construction section

NanCang Kua Diverging 19.3 753.52 accepts Diverted rain in drain district to,

HeS then to discharge it into Bei Canal

Pump station ofDiverging Rain discharged into Fu Kang River,

Cong Ming 10.5 275.0Road Mi System then to Hai He RiverRoad

Pump station of Diverging 9.135 234.0 Rain discharged into Nan Wei Di River,

Dong Ting Road System then to Hai He River

Table8-9 Water Quality Investigation of compared Pump Station(unit: mg/L)

Time (year) Station SS KMN BODs NH4-N

1998 Tai'an Road 90.0 7.27 8.38 0.34

1998 Jian Guo Road 125.0 4.32 4.89 0.39

Average 107.5 5.80 6.64 0.37

Note: The evaluation period is non-flood period and so the latest water quality of rainpump station historical statistics is in use.

Table8-10 Water Quality Forecast of rain pump (unit: mg/L)

Project SS KMN BODs NH4-NSurface water IV Standard 150 10 6.0 1.0

Forecasted drainage density 107.5 5.80 6.64 0.37of Pump Station

8-6

3) to evaluate Hai He River water quality improvement after projectRecently, among upper streams of Hai He River, only Qu Jia Dian floodgatechanges river water every spring during the periods of farm irrigation andafter-flood (before National Day), and the floodgate supplies the water of YinLuan River to Hai He River twice with. 20 million m3 each time. (1000 millionm3/a of Yin Luan water is the water use guideline for suburb farmland).In the years water is abundant, the flood of upper branches also rushes downHai He main stream, but only the probability is slim. According to the subjectresult of Hai He River pollution control technique research (urban part), themain pollutant source of Hai He River is the foul rainwater let off from urbandistrict during flood season. Another source is the rain water from farmland andbottom.mud .The total volume of flow of Hai He River the second floodgatesection reaches only 57 million m3/a or so in normal year, and no other flow inother seasons except flood period.

(I Runoff calculation in flood season(2) To appraise the improvement after water quality project of Hai He River, the

flow of project region during flood season should be computed. In Tianjinurban district, the average rainfall is 590mm each year, 70% of which fallsin the flood season. About 400mm rainfall is expected during flood season.The total rainfall can be calculated according to the following formula:

QP=FXPX i X10-7

In the formula: Q.represents the total rainfallF represents rain converging area, the total being 1262.5

hectareP represents rainfall during the flood seasonB represents runoff coefficient(which is 0.5) in water

converging district.Calculating result is Qp=2520 million m3

© pollutant decrease after project

Table 8-11 pollutant decrease of Hai He River after project(unit: tVa)Pollutant after The amount Decrease

Project Present pollutantprecofdras _______

project of decrease rateSS 1815.9 270.9 1545.0 85.08

KMN 870.9 14.6 856.3 98.32BOD5 475.5 16.7 458.8 96.49

NH4-N 106.5 0.9 105.6 99.15Note: KMN is in use as CODcr/2.5 in the above table.

8-7

From the table above, neglecting pollutant decrease by bypassing Feng ChanRiver, Fu Kang Road River and Nan Wei Di Dao River makes the Hai Hepollutant decrease as SS1545.0 ton, KMN856.3 ton, BOD5458.8 ton, NH4-N105.6 ton respectively after the project. Meanwhile, the industrial pollutedwater will not drain off to Hai He River with rain water. Therefore, thepollutant of industrial polluted water in the range will decrease by 100%.© The contribution to Hai He River water quality improvement(upper reachessection)Based on water pollution prevention and cure programming of Hai he Riverdrainage area,Tianjin (Tianjin administrative envelope [1999] 66) Cites thefindings of Hai he River pollution control technique research(urban district),which shows: The foul water drained off to Hai He River totals about56,787,000m3 in normal rainfall year, and the COD grosses 746405 ton or so.And with regard to Haihe River body, it has reached type IV in non-floodseason. The Haihe River water capacity in COD calculated is 2299:1 ton peryear, and so the cut of total 5156.4 ton per year of CODcr is needed.The cut of the project has been 870.9 ton per year by KMn, equal to 2140.0 tonper year in CODcr. To achieve the goal of the IV TYPE in upper reaches duringnon-flood season, and the goal of water quality apparent amendment in floodseason, the total contribution rate is 41.5%. The present Luan River pollutedwater resource will also be cut down. The benefit is extremely distinct.

8.2 Appraisement of atmosphere condition influence8.2.1 Atmosphere quality influence evaluation of Double forests foul waterdisposal factory(1) Pollution weather parameter

Tianjin has four clear seasons and obvious monsoon. The weather herebelongs to warm continent weather. The average air temperature betweenthe year of 1961 and 1990 is 12.5C, the average precipitation 559mm,the relative humidity 61%, the average wind speed 2.7m/s in central cityand the average wind speed is 4.5m/s in coastal district, and sunlighthours 2613h per year. See the table 8-12 and table 8-13:

Table 8-12 The various stabilization level and frequency in TianjinLevel

parameter A B C D E F

Frequency 7.8 2.0 16.9 56.7 4.6 12.0

8-8

Table 8-13 Average wind speed frequency in Tianjin

Wind directionParameter N NNE NE NEN E ESE SE SSE

Wind speed 3.6 3.0 2.7 3.7 3.8 3.6 2.3 2.1rn/s

Frequency 6 4 3 4 4 6 4 6

Wind speed

Wind direction

Parameter S SSW SW WSW W WNW NW NNW

Wind 2.3 2.9 3.0 3.2 2.8 3.6 4.3 6speedm/s

Frequency 8 11 8 5 3 5 5 10

N

N W

w WDELE

SSW SES

Chart 8-1 Rose Chart of wind direction and frequency in Tianjin region

8-9

(2) The evaluation of effluvium matter influenceWhen the constructed sewage factories are driven into function, the stench

gases, which are from water entry districts (i.e. grilles and desilter) and filthmud(dewaterer house) will influence the atmosphere. The gas is let off bynon- organization low altitude. According to the evaluation outcome ofprogramming analysis for the stench pollutant, the maximal stench lettingsource is the gas from the filthy mud area, in which the main polluted genesare NH3 and H2S. H2S is mostly selected in the evaluation for diffusion,computation and analysis to ascertain how it affects the atmosphere. In thelight of the requirements by GB/T13021-91the technique method ofconstituting atmosphere pollutant release, the sanitation safety intervalshould also be calculated to confirm the needed safety distances betweendischarging sources in this program.

(DAnalysis of H2S's environment influenceA. Forecast mode

To calculate the H2S influence value of environment by adopting withdrawand equivalence rule, which comes from the original Gauss Dian Yuan YanYu model by adding initial a YO and a zO.

In the formula: a y1= a Y+ a YO

a Z1= a Z+ a zo

a yo: broadwise orientation diffusion scale, m:a yc=U4.30 z: Plumb original diffusion scale ma z,=H/2.15L: Surface source equivalent side lengthHe: average valid discharging height, m

The diffusion parameters of various models are chosen according to thenational standard GB/T13201-91 when it's windy.

B. Forecast outcomeThe calculation results are seen in the table 8-14 using the previous model

formula. The density curve of leeward H2S falling to the ground is seen in table8-1 under the condition of supreme frequency D stability.

8-10

Table 8-14 The greatest falling-to-the ground density and the distance ofup-to-standard of H,S

Stability degree B C D E

items Qualified Qualified Qualified Qualifiedn Density . Concentration Concentration Concentration

VVid distance distance distance distancemg/M

3 (m) mg/M3

(m) mg/m3 (m) Mg/M3 (m)

1.5 0.0558 120 0.0605 180 0.0658 320 0.0670 460

2.5 0.0335 80 0.0363 120 0.0395 200 0.0402 300

3.5 0.0239 60 0.0259 100 0.0282 160 0.0287 220

4.5 0.0186 50 0.0202 80 0.0220 120 0.0223 160

X,(m) 5 9 12 15

c. Environmental influence analysis of H2S in the sites of recommendedfactoriesThe recommended site of factory in the programming is situated at thecrossing of Li Shuang Road and Xian Feng releasing filthy river, the west ofXian Feng and the south of Li Shuang Road. Nanmaji Village is less than 100meters away from and in the north and north west of Li Shuang, and San Hevillage is also that far away and in the west.Drawn from the above calculated result, the influence to the surroundings ofH2S can meet the standard under the condition of the maximal frequency Dtype stability in the leeward direction by the distance of 320 meters. The spin-drier antrum, which is 161 metres away from the east factory boundary, 88meters away from the south one, 249 meters away from the west one and320 meters from the north one, lies in the southeast of the factory district.Therefore, the influenced ranges in the programming are: 159m beyond theeastern boundary, 230m beyond the southern one, 71m beyond the westernone and zero beyond the Northern one. For the spaciousness of the outside ofthe factory's east and south boundaries, the distance of 300m or so to thenorth-east Qin Yuan, Tianjin, the influence of H2S can be controlled in the limitsof standard even though only about 75m away from the western part to San HeVillage., however, the influenced ranges come to the following: 299m to theeast, 372m to the south, 211m to the west and 140m to the north in the case oflittle E stability and gentle wind weather condition with the windward directioninfluence of 460m. Under this circumstance, When the programming is locatedtowards the sensitive objective windard direction, the released H2S gas wouldhave certain effect on Housanhe village to the west of the factory and Nan'maJi village to the north of the factory. From the weather data in the previouschapter, the emergence frequency of wind direction in the NE and NEN isonly 3-4% in the district. The influence probability to Hou San He village isrelatively less. While the highest frequency reaches to 8% in the S directionnormally., to make it influence Nan'ma village more likely. Even though little E

8-11

stability and gentle wind is not likely to happen (the frequency of which is lessthan 4.6%), the small possibility should not be ignored.Chart 8-2 the diffusion chart of the falling-to-the=-ground derrsity under the Dstability of H2S (standard value perceived clique value)D. The analysis of environmental influence of H2S of replaced factory siteThe alternative factory site in the programming is situated 4.2km to the southof the outer ring line and to the east of Xian Feng River, 300m away from XinZhuang Town Ji Tai Village to the east, and the to-be-constructed trash buryingfield is in the west of the factory site.Based on the calculation result by diffusion model, when H2S in theprogramming has effect on the surrounding areas under the maximal Dstability, the influenced ranges in the programming are: 159m to the easternpart, 230m to the southern part, 71m to the western part and zero to theNorthern part. And the influenced ranges come to the following: 299m to theeast, 372m to the south, 211m to the west and 140m to the north in the case oflittle E stability and gentle wind condition. For the alternative site is 300m awayfrom Ji Tai village, the influence of H2S in the programming can also becontrolled in the limits of environmental standard value.E. Brief summary about the analysis of the environmental influence of H2SAccording to the analysis above, the address of the factory that recommendedby this item is too near to the sensitive aim of the environment and there is noenough protective distance. So it will influence the structure of NanMaJi onthe condition of E stability and southernly wind; and it's necessary to take moremeasures to control such stenchy polluting resource as H2S , such as adjustthe arrangement of the factory the deal with waste water, seal the mud-dehydrating room, concentrate and lead all the stenchy air to unified exhaustpipe, change the exhaust without organization into that with organization; orreach the distance needed by environment protection through pulling downresidential buildings and moving the residents.As to the substitutive address of the factory, because the environment aroundis much expansive, it can satisfy the protective distance needed by thesensitive aim---XinZhuang country JiTai village. Building this item in thesubstitutive address of the factory won't bring remarkable influence to thesensitive aim of the environment.F. The analysis of the stink influence of NH3, H2SAnalyze the influential price of NH3, H2S according to the stench-controlstandard of Japan. Table 8-15 is the stench-control standard of Japan.Table 8-15 The stench-control standard of Japan. mg/m3

strength of stench (grade)ItemItem____ 1 2 2.5 3 3.5 4 5

NH3 0.1 0.6 1 2 5 10 40

H,S 0.0005 0.006 0.02 0.06 0.2 0.7 3

8-12

The density that the strength of stench of grade 2.5 in the table corresponds iscognitive value, that is, the weaker strength of stench that can discriminate thestench; grade 3.5 is the stench that can feel easily; more than grade 4 is thatfrom strong stench to violent stench.The source density of NH3 is 1.03mg/m3 and it has reached grade 2.5. Afterdiffusing, it should be lower much than this price, and then calculating it againhas no practical meaning, that is, the stenchy influence of 1.03mg/m3 is belowgrade 2.5, which can't bring remarkable influence to the environment around.Evaluate the influential price of calculating H2S in the former part in the gradeof strength of stench with the density of H2S in table 8-15.On the condition that there is E-stability of weak wind and it is 0.067mg/m3

where the downwind is 15m, the strength of stench of the largest influentialprice of H2S is- grade 3, which is between cognitive value and easy feeling; withthe increasing of the distance and the decreasing of the influential price, whileit is 0.020mg/m 3 where the downwind is 260m, its strength of stench is grade2.5. Having the density of H2S 0.02mg/m3 which grade 2.5 is corresponding toas the boundary, the price that is lower than this price is regarded asunremarkable influence, but on condition that there is E-stability of weak windand the distance of the downwind is more than 250m. the stench influentialstrength of H2S is lower than grade 2.5, which can't bring remarkable influenceto the environment.As shown in figure 8-2, on condition that there is D-stability of average speedof wind (3.5m/s) and beyond 60m in the downwind direction, the influentialprice is 0.02mg/m 3, which is within the boundary of ShuangLin factory whichdeals with waste water and can't bring remarkable influence to theenvironment around.(2)calculation of the sanitary and protective distanceAdopt the calculating formula of the drafting method about sanitary andprotective distance of harmful air in GB/T13021-91 Drafting technicalmethods of draining off polluted matter in the air to calculate the sanitary andprotective distance that this project needs to set.The calculating formula:in the formula: Cm the restricted price of density in the table,mg/m3

__ = I (BL' + 0.25r2)0 50LDCm A

L-----the needed sanitary and protective distance, mr--------the equivalent radius of the unit where

the draining off resource of harmful air without organization,m; r=(s/ n )o.5

Qc-the draining off quantity of harmful air without organization,kg/h

A,B,C,D the calculating coefficient of sanitary and protective

8-13

distance, choose according to GBTI13021-91, A=470, B=0.021,C=1.85, D=0.84

According to the most unfavorable principle, this project chooses theenvironmental factor H2S, which has the largest disposal quantity and has thestrictest standard demand factor. From the original strength of stenchy air'sdraining off in the former engineering analysis, we can know he originalstrength of draining off at case gas pool and mud-dehydrating engine room isseparately:Q, 1=0.0115kg/h , Q,2=0.0760kg/h, the restricted price of standard isCm=0.001 mg/m3

The result of calculation is listed in table 8-16.

Table 8-16 The smallest protective distance needed by H,SThe needed protective distance

source of discharging Quantity of discharging (kg/h) (mi)

Grille aeration pool 0.0115 150

Mud-dehydrating engine room 0.0760 300

According to the calculation above,Grille aeration pool in this item needsprotective distance of 150m and the sanitary and protective distance that themud-dehydrating engine room needs to put up. Therefore, out of the boundaryof the east, southeast factory in this item, there should be set up protectivedistance of 200m, while out of the boundary of the west, southwest factory,there should be set up protective distance of 150m.© The influential analysis of stenchy air densityThe quantity of stench dissipating from the factory which deals with wastewater is influenced by such elements as the quantity of waste water, BOD loadand dissolved oxygen in the water, the quantity of mud, the quantity of mudstorage, sunshine, temperature and speed of wind etc. After the stench isreleased and goes into the environment, the decline of strength has two kindsof forms: one is the diffusing and diluting physical decline in the space; theother is the chemical decline of stenchy matter after certain time affected bysunshine or ultraviolet ray etc. Because the mechanism is complex, it's difficultto quantity the original strength and the declining quantity accurately. In thisevaluation, we use the investigating way of comparing data to analyze theinfluence of stenchy air density. Decide the influential area of stench to theenvironment in this item according to the special on-the-spot smellinginvestigation that Shanghai ever did to the factory, which deals withwastewater in common, exposed way. The on-the-spot investigation will dividethe strength into 6 grades. See table 8-17.

8-14

Table 8-17 The grade of the stench strengthStrength Index of grade

0 No smell

1 Barely detectable (feeling clique value)

2 The smell is weak and it's hard to tell the character (recognizing clique value)

3 Easy to feel the smell

4 Strong smell

5 Unbearable strong smell

The way of on-the-spot investigation is: organize ten single male and femaleyoung persons who are less than 30 years old and has no addict to cigaretteand wine to smell the stench on the spot, and the subjects will smell in thedownwind direction 5, 30, 50, 70, 100, 200, 300m separately, and smell in thewindward direction as reference. From the smell statistics, we can know that inthe downwind direction 5m of dealing with waste water, you can feel strongsmell (grade 3-grade 4), in 5-100m you can feel the smell easily (grade2-grade 3), in 200m the smell is weak (grade 1-grade 2), and out of 300m youcan't smell the stench.(4) ConclusionAccording to the calculation above, the calculating result of two sanitary andprotective distance is 150-200m. The influential price of H2S under the mostunfavorable weather condition calculated according to the diffusing of surfacesource is equal to the distance when the stench strength is grade 2.5 is 250m.The influential distance investigated according to the stench smell on the spotis 200-300m. In order to make it safe and consider from partial safety, theevaluation advises the sanitary and protective distance about stench pollutionis 300m.The address of factory chosen by this project is less than 100m away fromNanMaJi village and HouSanHe village, which can't satisfy the demand forprotective distance above. Furthermore, the district, which will be built, alsohas no enough space to satisfy the ground demand for long-term developmentof this item. So, the recommended address of factory, which this item choosesin the former feasibility research report, is not fifful from the environmentprotection. While the substitutive address of factory in this -item is quiteexpansive around and can satisfy the demand for protective distance referredabove. So, this item is advised to adopt the substitutive address of factory asthe final one.(2) The analysis of the impact of pollutant disposal of fuel heating boiler andmethane boiler on the environmentShuangLin system, which deals with wastewater, use two diesel oil boilerheating and bathing(one is in use, the other is spare). Both are 400 kcal/h,about 2tVh. The fuel caloric value is averagely 1 0000kcal/kg; the specificgravity isO.81-0.86t/m 3, S percent is 0.25-0.5%. According to the similar

8-15

investigation, the quantity of fuel in 2t/h boiler is about 104kg/h, the quantity ofdraining off smoke is 2600Nm3/h. After calculation, the quantity of fuel in thefuel boiler in full load of this item is 104kg/h, the quantity of draining off smokeis 0.23kg/h; the quantity of draining off S0 2s 1.04kg/h0 Through calculation,the draining off density of main water matter in smoke is: TSP: 89mg/Nm3,SO2 : 400mg/Nm3, lower than Jin/DHJB1 -1 999 in (the standard of draining offof air-waste matter in boiler)) , the restricted price during the fuel boiler II(TSP100mg/Nm 3, S0 2500mg/Nm3), can satisfy the demand for the standard.

2) The influential analysis of waste matter in methane boiler to the environmentThis engineer employs three methane boiler of 1000kW/h (two are open, theother is backup), to be in use in the process of mud-digestion. Methane boilersupplies heat for mud-digestion, and the methane air-blower. Methaneproduced in Japan is about 4700m3 The largest fuel quantity of two methaneboiler of 1000kW/h is 413.1 m3/h. If the methane boiler is carried on 10 hours infull load, the in use methane is 4131 m3, the methane left is about 570m3, tosupply the basic balance in use by methane air-blower.

70% of the methane is made of CH4, others are made of C02, and methanemay contain 0.8% (VN) of H2S. Through calculation, firing methane of 1 m3 willproduce SO2 of 22.9g, and smoke of 11m3, while the density of draining offTSP in smoke is 40mg/m3 , the density of draining off S02 is 2082mg/i 3.Because H2S in methane will produce corrosive effect to the equipment andwill make the methane produce a great amount of SO2 after burning andpollute the environment. Thus, this item must arrange the equipments in usespecially or methane to take off H 2Sand take off S before using methane.According to the compared data, take off S repeatedly by using dry way,double clear room and reborn continuous methane clear implement, theproportion of taking off S can reach 99%. Through the clear implement oftaking off S, the methane can be in use to fire in the boiler and the density ofSO2 in the smoke can drop to 21mg/m 3, which can satisfy the managingdemand of restricted price of density of 50mg/m 3 . Through calculation, inorder to make SO2 produced by the firing of the methane boiler reach thestandard of draining off, it must be taken off S before usage, and the proportionof taking off S in the equipments can't be lower than 90%.

8.2.2 The influential analysis of stenchy gas in the wastewater pumping stationof building pipe network engineering(1) Confirming the source strength of stench in the wastewater pumping station

Though piles of work has been done on the stench problem of similarprojects domestic or abroad, but because the components of stench iscomplex and changeable (including H2S, NH3 etc inorganic gas and manyissuing organic matter, and some of waste matter have low density, but thereare problems on harass each other), the dispersing of happening origin et. Tothis day there is no mature quantity-forecasting pattern, and people can't

8-16

forecast the strength of origin, the speed of dispersing, and the degree ofdecreasing etc accurately.

For the reasons above, this evaluation monitors the stench in similarwastewater pumping station on the spot, and the comparable pumping stationis MiYun road wastewater pumping station (the planned flux is Q=10m3/s, thetime of inspection is January 26h, 2002, the actual flux when inspecting isQ=2m3/s, the direction of wind is WWN, the speed of wind is 2.2m/s, the placewhich produce stench is water-extending pool without purified equipments forstenchy gas), the data of inspection can be seen from table 8-18.

Table 8-18 The data of stench inspection in similar wastewater pumpingstation(unit: mg/m3)

The monitored pum station factory StandardStenchy matter

windward 10m Downwindl0m Downwind 30m 0

Ammonia 0.084 0.242 0.170 1.0

H,S 0.003 0.034 0.018 0.03

The density of <10 22 <10 20 (no unit)

stench

note: (D in the standard of discharging stenchy waste matter (DB12/-059-95) the standard price for

control in the new-building factory terminus.

In order to understand the decreasing impact which the concerned purifingequipment have on the stenchy matter, this evaluation studies the concerneddata. According to the data supplied by the building companies and theplanning companies, compare with the data of inspection of the density ofdraining off stenchy gas in Shanghai YunLiing wastewater pumping station(The research institute for the gas environment at research college for

environmental science in Shanghai , January 18', 2001, the scale of thepumping station is Q=0.27m3/s, the temperature of the environment is 11'C,the pressure of gas is 102.3kPa), this pumping station adopt the purifiedmeans of biology-filtrating on the stenchy gas ( the biology-filtratingequipments deal with load of 3000m 3/h), the data of inspection can be seen intable 8-19.

8-17

Table 8-19 the data of inspection of then density of draining off stenchy gasYunLing west wastewater pumping station (unit: mg/m3)

state density of H2S Ratio of Density of NH3 Ratio ofreduction % reduction %

Beforepurfication 0.11 1.6purification 0.01 so90.9 62.5Afterpurification 0.01 0.6

The standard 0.03 1.0p ric e_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

note: in (thestandard of draining offstenchywaste matter) (DB12/-059-95) the standard price for

control in the new-building factory terminus.

This report adopts the data above to analyze and evaluate the influence of airin the environment leaded by the wastewater pumping station in this project.(2) feasibility analysis of draining off stenchy waste matter

Compare the data of inspection in MiYun wastewater pumping station with thestandard price for control in the new-building factory terminus in the standardof discharged off stenchy waste maiter (DB12/-059-95) , we can see thedensity of waste matter increases obviously in the downwind direction, and thewaste factor of inspection can reach the restricted price of standard at 30m inthe downwind direction. Because of adopting the biology-purifying equipments,the draining off of H2S has decreased largely in Shanghai Yunling wastewaterpumping station, but because the time of inspection is in winter and thetemperature is low, the ratio of uttering stenchy gas is small. If considering theelements of seasons, The density of draining off purified H2S will approach therestricted price of standard.Compare the monitored price at 30m in the downwind direction in MiYun roadwastewater pumping station with the data in table 8-15. 8-17, we can know: ifthe stenchy strength of ammoniac in stenchy matter exceeds grade 1, and thestenchy strength of H2S exceeds grade 2.5, the people who suffer theinfluence can smell the stench. According to the concerned documents, partsof smelling clique value of the stenchy matter and the concerned standard canbe seen in table8-20.

8-18

Table 8-20 parts of smelling threshold value of the stenchy matter and theconcerned standard (unit: mg/m3 )

Stenchy Smelling Standard of theStenchy Smelling Sthrehol fato e Sanitary standard of designmafter threshold factory (eintaars)Stinky smellmatter (residential areas)

value terminus

Ammonia 0.037 1.0 0.2 Sharp stench

H2S 0.00047 0.03 0.01 Corrupted eggstench

Methyl Sharp sulphur0.0001 0.004

hydrosulfide stench

note: 6I) in (the standard of draining off stenchy waste matter) (DB12/-059-95) the standard prce

for control in the new-building factory terminus.

(2) Planning sanitary standard for in residence in (the planning sanitary standard in industry

enterprses) (TJ36-79) .

From the data in the table above, we can know that the standard of the factoryis less stirict than the sanitary standard, and the sanitary standard is less strictthan the smelling threshold value. This illuminates that on the condition of thestandard of the factory terminus, the stenchy waste matter may not reach thesanitary standard. Even if it reached the sanitary standard, the people in theinfluential area can still smell the stench. According to the data of inspection insimilar pumping station, where the stenchy matter is produced at 3m in thedownwind direction, the density of ammoniac in the inspected price of wastematter may approach the planning standard in residence, but the density ofH2S has gone out of the planning standard in residence. If considering theunfavourable elements in summer, the scope beyond the standard may reachbetween 30m and 50m.According to the data supplied by the building companies, there are threewastewater pumping station in the pipe network engineering of this project,including the wastewater pumping station at the east of GaoFeng road(Q=3m 3/s), the wastewater pumping station in YingShui street(Q=0.58m 3/s),

the wastewater pumping station on the outside ring (Q=2.56m3/s) . Both thescale of the wastewater pumping station at the east of GaoFeng road and thatof the wastewater pumping station on the outside ring exceed the similarpumping station. The two wastewater pumping stations are estimated that theinfluential area is about between 50m and 80m. Because he wastewaterpumping station at the east of GaoFeng road is planned to be built in BeiCangnursery, the trees around will hinder and absorb the stench. With the elementof reasonable distribution of planning, It is estimated that the influential areawill decrease between 20m and 40m. The wastewater pumping station on theoutside ring is 200m away from the sensitive points around, so it can't beharmed.

8-19

We must point out that the planned pumping station of sewage in YingshuiStreet is already occupied by buildings (See picture 11,a building belonged toTianjin branch of Xinhua News Agency). But if we found the station in this site,we must demolish the buildings that are already there and with lots of sensitivepoints around (especially, it is just as far as 1Om away from Xinhua ResidentialGarden referring to the 9' floor). Although completely occluded design andadded cleansing establishments be in use, drainage can be organized andmephitis can be discharged according to standard, there may still appeardisorganized drainage during the production of bar-dregs and its motionoutward. The disorganized drainage is admitted in factorial standard, while, ifthe pumping station is built in residential area (outside is residential area), notonly the factorial standard should be noticed as a controlling aim, but also thesanitation standard of the residential area should be achieved. According tothe rule of environmental protection, the strictest rule will be obeyed whenthere exist more than one. So the disorganized drainage may still more or lessinfluent people around after governance. Furthermore, the environmentalprotection requests that the exhaust pipe should be higher than near buildings(A 9-floor-building is about 30m high). Such a highly exhaust pipe will harm thesight of the area, moreover, the disorganized diffusion of mephitis and noisesof vehicles are very difficult problems to deal with during cleaning and carrybar-dregs in the station. As a result, we judge that the chosen place is not goodfor the station built there will inevitably harm the lives of residents around. Boththe constructing group and the designing group should think a substitutableplan to choose another place to build; otherwise, grave aftereffects may arise.(3) MeasurementsBecause of the complexity, programming department has proposed asubstitute plan about place choosing, which says to construct the station in thenorthwest corner on the crossing of Hongqi South Road and Yingshui Street(See Picture 12). Knowing from the information supplied by designing group,the pumping station of sewage that is going to built there is designed to beunder ground, even the parts which can not be under ground (For examplebar-wells and water-out-pond) are completely closed down. Necessaryestablishments for fume cleaning will be utilized (Like the biological filtrationsystem taken by Shanghai Yunling West Pumping Station of .Sewage) andplants will grow stereoscopically (We can plant vine and rooftop-parterre), thenwe can reduce the amount of mephitis within the limits. A contrastive datashows that the using of this program can greatly reduce the mephitis. In thisway, near west restaurants (10m far from the border of the pumping station)and residential buildings (1st and 2nd building of Yingshui South Garden,which is 20m far from the border of the station) can escape from gravely badinfluence.

8-20

8.2.3 Judgment of environment influence by mephitis during the controllingprogram of Dagu sewage drain River(1) The confirm of strong mephitis in sewage drain river in DaguThe sources of the mephitis on both riverbanks are mainly from the sewage inriver and the bottom mud, while, the controlling program of Dagu sewage drainRiver clea out the alluvial mad stays in the river for years. At the same time,upper reaches of river will build factories to deal with sewage so that the qualityof entering water will improve. After controlling, the water quality of Dagu Dirt-going River will achieve almost as the same level as the east river part fromSky Tower of Jizhuangzi Dirt-going River. So we can contrast with east partfrom Sky Tower of Jizhuangzi Dirt-going River and use contrastive supervisionto forecast how wide and how deep the mephitis of Dagu Dirt-going River willinfluence near areas within working period. Thickness of H2S, NH3 and themephitis will be supervised as the contrastive items. The three points forcollecting those gases are: 20m against the wind, 1Om and 50m tail wind. Thesupervision is carried out according to DB12/-059-95<Standard of MephitisQuantity> and related prescript. 4 times of recording value are requested everyday and the biggest ones will be useful. See the result of supervision fromPicture 8-21.

Table 8-21 Compared Results of Mephitis MonitoringCollecting Points

Item Frequency do1nOindItem Frequency Windward 20mdonWd DownWind 50mloin

Thickness of 1 10 21 10

Mephitis 2 10 23 10(no

dimension) Maximum 10 23 10

1 0.002 0.014 0.014

2 0.003 0.040 0.016

Mg2M3 3 0.002 0.030 0.017

4 0.003 0.064 0.011

Maximum 0.003 0.064 0.017

1 0.078 0.117 0.009

2 0.019 0.199 0.019

(mg/m3) 3 0.069 0.399 0.2294 0.170 0.423 0.251

Maximum 0.170 0.423 0.251

8-21

According to these results, see table 8-22 to know the forecast about mephitisconditions on each riverbank after the controlling program of Dagu Dirt-goingRiver.

Table 8-22 Forecast of Mephitis after River ControllingItem Windward 20m - downWind 10m| downWind 50m

Thickness of Curre Data 10 33.9 1 32.4

Mephitis Forecast 10 23 T 10

(noStandard 20

dimension)

Current Data 0.002 T - 0.003H2S Forecast 0.003 0.064 | 0.017

(mg/lm)Standard 0.06

Current Data 0.137 - 0.294NH3 Forecast 0.170 0.423 0.251

(mg/rn3)_Mg_M3_ Standard 1.5

Note: The standards in the tables are copied from the environmental controlling standard of

mephitis in DB12/-059-95<Standard of Mephitis Quantity>; the current data are taken from supervised

data in the collecting points on Xinyuan Brdge.

We can learn from Table 8-20 that the quantity of both H2S and NH3 on eachbank can be qualified, the thickness of mephitis 1Om far from the banks canlimit under the environmental controlling standard of mephitis in DB12/-059-95<Standard of Mephitis Quantity>. The mephitis thickness is evidentlyreduced within 50m far on each bank comparing with what the river in use tobe. The mephitis can be controlled and the environmental quality can bedistinctly improved.

8.3 The assessment of noise impact on environment8.3.1 forecast model of noise impact on environment(1) Total sound level of several (n) noise sources can be calculated throughnext formula.

Leq,~ Lq,

i=l

(Leq, in this formula is the effectual sound level of the ih noise working onsome forecasting point.)(2) Formula of attenuation noise value with distance

Lp=Lr-201g(r/ ro)- a (r-ro) -RIn the formula:

Lp The sound press level received by worked point (Influenced point),dB(A);

L-The sound press level away from noise noise source r, dB(A);r Distance between noise noise source and the influenced point, m;

8-22

rd-Distance of the referring point, m, supposing ro=1m;a -Absorption coefficient of sound wave in gas, dB(A)/m, supposing

the average is 0.008dB(A)/m.R -Sound insulation quality of house, wall, window, door and fence,

in this case, R=20dB(A).(3) Addition formula of influential value and background value

n

L=1Olg1IOPi"Oi=,

In the formula:L Sound press level after addition, dB(A);

Pi-The ih noise data that will be added, B(A);n Sum of all the noise added in the formula.

8.3.2 Judgment of noise impact on environment in Shuanglin Sewage DealingFactory(1) Basic complexion of sound noise sourcesWater pumps and fans are the main noise sources in Shuanglin SewageProcessing Factory. All the water pumps there are diving pumps and only workin pump room, each one has a noise value under 95dB(A) during working. Thetotal 4 fans are in fan room, three working and one spare, each of them owns anoise value under 105dB(A). Furthermore, sound insulation cover and ascreen in fan room have been adopted. After calculation we can understandthat the total effectual noise level of this program is 111.9dB(A), while duringaccount, 112dB(A) can be in use.(2) Calculation of the noise influence to the factory areaIn this program the noise noise sources are mostly focin use in fan room andnearby. The smallest distances between fan room and the factory area areabout 192.8m (eastward) ,266.6m (southward) ,193.6m (westward) ,138.8m(northward) . The strongest strength of noise is about 112dB(A). Table 8-23

shows the result after account.Table 8-23 Result of The Main Noises Influence to The Factory Area dB (A)

Position Distance (im) Influential dataEast to the factory 192.8 44.76

South to the factory 266.6 41.36West to the factory 193.6 44.72North to the factory 138.8 48.04

8-23

(3) Addition of influential data of noise and background dataTable 8-24 Result of Influential Noise Data and Background Data dB (A)

Supervised data Result Any influence

Distance Influential toPosition

(in ) data Daytime Nighttime Daytime Nighttime environment

(Yes or No)

East to the192.8 44.76 51.0 45.4 51.9 48.1 No

factory

South to266.6 41.36 41.4 33.2 44.4 42.0 No.

the factory

West to193.6 44.72 42.8 36.5 46.9 45.3 No

the factory

North to138.8 48.04 45.8 39.1 50.0 48.6 No

the factonry _ _ _ _ _ __ _ _ _ _ _ _ _ _ __ _ _ _ __ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _

(4) Conclusion of the judgment about noise influenceWe can see from Table 8-23, noise of equipments in the program has astrongest influence in quatity north of the factory area, while it is just 48.04dB(A), still lower than Noise Standard II ((Daytime 6OdB(A), nighttime5OdB(A)) in national GB12348-90<Noise Standard of Industrial companyarea>. It says that the noise of fans in the program has a mild influence onenvironment.From Table 8-24, we can learn that all result after addition is within standard,that is to say, all the data is lower than Noise Standard II ((Daytime 6OdB(A),nighttime 5OdB(A)) in national GB12348-90<Noise Standard of Industrialcompany area>. It says that the noise of fans in the program has a slightinfluence on environment; no noticeable influence of the program constructionwill appear to the surrounding environment.

8.3.3 Judgment of noise impact on environment through drainpipe networkconstruction project(1) Setting of main water pumps in pumping station and the strength of noise

sourceThe noise of pumping station working is quite a focus environmental problemby surrounding people. Water pump creates most of the noises while running.According to comparing information, it creates noise with different strengthwhen it is in different type and holds different ability of water transportation.The noise mainly ranges in the area about 80-95dB (A) . The program hasgiven out a scientific research bulletin, in which the series of QW diving pumpis suggested to use. This kind of water pump has good capabilities andefficiencies. Besides, it can prevent to be clogged or twisted; furthermore itsautomation is very successful and useful. The pump can be in use to transport

8-24

sewage with solid granules or long staple; those diving pump recommended byrain pumping station which transport water by axes can even satisfytechnological need of people with a large flux and a small influential area.

Please see Table 8-25 to know the main construction of water pumps inpumping stations, which the program concerns.

Table 8-25 Main Settin in Some New and Rebuilt Pumping StationsDesigned Pump

No. Name Subordinate Water Number NotesPrograms Quantity (i)

_____ ____ ____ (m 3/s)The flux of each one:

Kuahe Pumping South-North Q=2.652m31s; the strength ofStation Project noise source is about 90dB

1 Project ~~~~~~~~~~~(A)5 in use 2 prepared

South-North The flux of each one:2 Tiedong Road Storehouse 3 7 Q=0.64m3/s, the strength of

Pumping Station Project noise source is about 85dB(A)

2 in use 1 spareGaofeng Road South-North The flux of each one:

3 Sewage Pumping Storehouse 1.08 3 Q=0.64m3/s, the strength ofStation Project noise source is about 85dB

(A)The flux of each one:

4 Chongming Road Fukang Road 105 4 Q=2.652m3/s, the strength ofPumping Station Project noise source is about 90dB

(A)3 in use 1 prepared

Yingshui Street The flux of each one:5 Sewage Pumping Fukang Road 0.58 4 Q=0.193m31s, the strength of

Station Project noise source is about 80dB(A)

4 in use 2 spareSewage Pumping The flux of each one:

6 Station in Outer Fukang Road 2.56 6 Q=0.64m3/s, the strength ofRound Project noise source is about 85dB

(A)The flux of each one:

Dongting Road Fukang Road 9.135 4 Q=2.29m3/s, the strength ofPumping Station Project noise source is about 90dB

I _ _ _ _ _ _ _ _ _I__ _ _ _ _ _I__ _ I__ _ _ _ (A )

According to a scientific research bulletin supplied by the constructioncompany, main parts of the pumping stations in this program are all going to beset under ground as a whole, that is to put water gate, well, catchments andwater exit together. These parts constitute the main build of the pumpingstation. Water pump is running under water, and most of the pump rooms haveno parts on the ground (Except Kuahe Pumping Station and Chongming RoadPumping Station). There are bars to hold dirt back before water enteringcatchments through entering pipes. Water pumps stay in catchments at a linewhile exceeding pipes parallel to each other and join.

8-25

(2) Analysis of noise influence on environment when the station is operatingAccording to the designed data of pumping stations, each one has many waterpumps. The judgment analyses environmental influence supposed all thepumps in each station are working.Using the formula of attenuation noise value, we can forecast 6ZNLJT NRNNvenvironmental influence of each pumping station in the program. See Table 8-

26.

Table 8-26 Forecast of Noise on borders of each factory dB (A)Noise Value Distance (m)

Point Bcg Strengthrackg of noise 3m 5m 7m 1 Om 1 5m 20m 25m 30mrounde

Dayti 49.9 63.7 59.5 57.0 54.7 52.7 51.7 51.1 50.8me 99.0

Nightti 41.7 63.5 59.1 56.2 53.3 50.1 48.0 46.6 45.6me ___

2# Dayti 49.6 93.5 58.5 54.9 53.1 51.6 50.6 50.2 50.0 49.9m e I___ __ _ _ _

3 Day 50.4 55.7 53.1 52.0 51.2 50.8 50.6 50.6 50.589.8

# Night 41.3 54.4 50.3 47.9 45.7 43.7 42.8 42.3 42.0

4 Day 54.2 61.4 58.2 56.7 55.6 54.8 54.5 54.4 54.396.0

Night 44.6 60.6 56.3 53.6 51.1 48.6 47.2 46.4 45.9

5 Day 62.6 62.8 62.7 62.6 62.6 62.6 62.6 62.6 62.686.0

Night 52.3 54.5 53.2 52.8 52.6 52.4 52.4 52.4 52.4

6 Day 58.6 61.0 59.6 59.2 58.9 58.7 58.7 58.7 58.792.8Night 53.1 58.6 56.0 54.8 54.0 53.5 53.4 53.3 53.2

7 Day 54.1 61.4 58.2 56.6 55.5 54.8 54.5 54.4 54.396.0

Night 48.9 60.8 56.8 54.5 52.5 50.8 50.1 49.7 49.5

8 Day 51.2 53.9 52.4 51.9 51.6 51.4 51.3 51.3 51.3

Night 49.0 52.8 50.8 50.0 49.5 49.3 49.2 49.1 49.1

NOTE: G take the stastics result from YingShui Road pump station .

According to the calculating results above, combine the division of noisefunction details, the following diagram shows the qualified distance forecast inthis project.

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Table 8-27 qualified distance forecastfuncti

Subordinate on standard limitsNo Name projects divisio (dB (A) qualified distance (m)

n

over river pump project of1 2 Day 60, Night 50 Day 7, Night 20

station NanbeiS&g b

2 TieDong Road pump project of 3 Day 65. Night 55 Day 3. Night 5station Nanbei Cang

GaoFeng Road _ lproject of

3 sewage NanbeiCang 3 Day 65. Night 55 Day 3. Night 3

pump station

ChongMing Road project of4 pump station Fukang Road 1 Day 55, Night 45 Day 15. Night 60

pump station Fukang Road ___

YingShui Road project of5 YingShui Road project of 1 Day 55, Night 45 Day 30

sewage pump station Fukang Road

Circle Road pump project of6 4 Day 70, Night 55 Day 3. Night 7

station Fukang Road

DongTing Road project of Nan7 DongTing Road project of Nan 3 Day 65. Night 55 Day 3. Night 7

--pump station Countryside

NOTE: D the night background value is beyond standard in YingShui Road pump station.

From the forecast of qualified distance, we know that pump station willinfluence a quite small range of place after reducing and cutting off noise (thequantity of sound insulation is 20 dB(A)) during the circulation period. Thequalified distance is about 3-7m, Over River pump station is large in scale, sois its influence, about 7-20m. The background value of ChongMing Roadpump station is higher, the division of its noise function is in 1st level, so thedemand is higher and the influence is wider, about 15-60m. The nightbackground value is beyond standard in YingShui Road pump station andthere is no environment capacity. So more efficient sound insulation measureshould be carried out.(the quantity of sound insulation should be higher than.20 dB(A)), otherwise choosing different places should be considered in orderto avoid the residenter being interfered by the noises.

8.4 The Evaluation on the Environmental Influence of Solid WasteSludge is the most serious solid waste in this project during the circulation

period. It will be intensively evaluated with the sludge during the constructionperiod in Chapter 9.

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8.5 The Evaluation of the Influence on Ecological Environment8.5.1 The Analysis of the Ecological Environmental Influence on ShuangLinSewage Disposal Factory(1) The present situation of the ecological system in the construction areaplanThe construction planning area is located near the south Maji Village inShuanggang Town,South Tianjin Distric on the cross of Lishuang Road andXianfeng sewage drain river (that is in the Jitai Village, Xinzhuang ). The mainriver in the construction area is Xianfeng river which is the sewage drainingriver. It takes on the waste water of life and industry, so the water quality is inserious deprevation. Most of the COD detesting results taken from around theconstruction area are beyond the standard level, range in 200-448mg/L. Allof the averge values are higher than the standard level. The algae group in thisriver includes chiefly blue algae and Euglena and the zoobenthos are mainlyDiptera chironomus larvas and benthonic oligochaetes which are aquaticinsectsThe agriculture, forest, pasture and fishing are all well developed in this area.There are infield 226200 Mu (chinese area calculating unit), including grainfield 172200 Mu, and garden field 33800 Mu. The main agriculture productare paddy, wheat, corn. Chinese vegetables, leek, celery, tamato, andcucumber etc. are widely planted in the garden field. Feeding pig, chick, andcow are the major in the feeding agriculture. And the Fishing area is 24000 Mu,fruit area is 4736.9Mu, reed area is 13800 Mu.There is no nature reservation, species rare or in severe danger, natural forestin this area. and also there is few wild animals.(2) The ecological system changes after the construction of the sewage

disposal factoryThe polluted sludge will be thoroughly cleaned in the Xianfeng River afterproject construction. The water in the river will be mostly from the sewagedisposal factory. The water there must reach the second integrated sewagedrain standard. So it can make the water in the river more clean and clear. Thegreen algae would be the major algae , and the large benthonic invertebrateswould be chiefly chironomus larvas.(3) The influence on the landscapeThe water becomes clean and clear after the project construction. more greenplants will be planted on both sides of the river. So the landscape can beimproved here. The sewage disposal factory construction have nodisadvantages in the landscape aspect. The villages around can also benefitfrom the clean water after the disposal to make their homes more beautiful.The project construction will make good influence to the landscape here, that isthe positive result of this project on the landscape.(4) The influence to the life qualityThe XianFeng River will become clean and the foul smell will disappear after

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the construction of the project. The residents nearby will get enough water todevelop the product industry. In the whole ShuangLin drain system area,sewage has been dealt with thoroughly. The phenomenon that the wastewateroutflow and arbitrary disposal will no longer exist. So the construction of theproject will highly improve the residents' living conditions and iving quality onboth sides of the river and also the whole drain system area.(5) The negative effects of the projectThe construction of the project will make the negative influence on theecological system, the main one is: some of the lands have been taken over foruse, so the local ecological environment has changed. To some extent, itinfluences the product industry in the area; even it reduces the living level ofsome peasants. So besides settling down the immigrated residents andcompensating the requisition of the lands, extra work should be done in orderto avoid the negative influence of the requisition of the lands. For instance, tryto remove the ecological influence on the agricultural fields by planting moregreen plants.

8.5.1 The analysis on the ecological influence of the project of bringing Dagusewage drain river under control8.5.1.1 The analysis on the influence of the aquatic creatureNow Dagu sewage Drain River is a pure sewage river. The water quality andthe sludge quality are extremely bad. So the quantity of saprophytic bacteria ismore than that of invertebrate and fishes. The typical pollution resistable A&i 3 is the dominant species among the protozoa in the river. Crucian carp

and mudfish are advantageous. When the flood season comes, the rainwaterwill dilute the sewage. The quantity of oxygen in the water will increase, andthe agriculture dirty water drain in the river. All these factors will change thetypes and quantity of the creatures in the river water.After bringing Dagu sewage drain river under control, with the sludge of manyyears being removed, the water that drain in the river will be qualified. At thesame time, a sewage disposal factory will be built at the upper reaches. Thelife sewage of most of the cities in the system will be cleaned by the factoryand be qualified before being drained in Dagu river. Therefore, when theproject being completed, the water quality of the river will be apparentlyimproved. The sewage ecological structure will be replaced by the fresh waterecological structure. A few points can indicate that:1) The quantity of the bacteria will reduce apparently with the increasingquantity of the zooplankton and phytoplankton. The superior species of thezooplankton and phytoplankton will change a lot, and form a typical fresh waterecological structure of zooplankton and phytoplankton.2) Contrast with the common water on the ground, the resource water of DaguRiver is still the qualified life and agriculture sewage water. So the mainpolluted substance in water is still TN, TP and organic substance. The typical

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nourishmental kind of zooplankton and phytoplankton will take a largeproportion of all the plankton.3) The types and quantities of fishes will increase. Different kinds of fishes willgo into the river, with the drain of the agricultural water. Because the waterquality has improved and the plankton has increased, some of the fish speciesremain and breed, possibly become the mai`FL~rior species in the water.4) With the increasing of the water quality and the changing of the aquaticcreature structure, the quantities and types of benthon will also increaseobviously. The typical sewage types of benthon will reduce, at the same time,fresh water types of the benthon increase and becomes the superior species.5) With the increasing quantity of the oxygen in the water and water becomingclearer, large under water plant and phytoplankton will grow and breed inwater.6) After bringing the Dagu sewage Drain River under control, -the planktonsystem becomes more varied and complex. The ability for the water to cleanitself has resume and strengthen, so the ecological system in the water stepinto a new excellent circle.8.5.1.2 Water and soil conservation of the project of bringing Dagu SewageRiver under control(1) The present situation of soil erosionThe project construction is located on the plan of seawater alleviation area, thesoil is mostly made up of loam and clay, and the rate of vegetation cover ishigh. It is the continental monsoon climate in warm zone, and influenced by thesea and landform. So rainfall amount centralize and always with the storm rain.The soil erosion is most done by the water, always take place on the slopeinfields with the shape of layer, gully, gravel, scale, etc. according to fieldreconnaissance, gullies and collapsed pits can be seen on the slope. The soilerosion modulus is approximately 300Vtkm2 - a, which is mild erosion.(2) The forecast of soil erosion1 ) The project of bringing Dagu sewage drain river under control will more orless change, destroy, or embed the original geomorphic feature and vegetation.According to the construction requirement and working-site investigation, thechanged area of the geomorphic feature and vegetation will be 3799Mu,including the dumping place 500mu, slope790mu, working and living area2509mu.2) The forecast of the amount of sludge or spoilAccording to the construction situation, the soil dug from the base can be inuse to build the dyke. Through proper calculation, there would be no spoil left.The sludge would be 2197,000 m3, 710,000 m3of which is transferred to thedumping place, and the rest 1,487,000 m3would be in use to build the dyke andas farmland fertilizer.3) The forecast of destroying the soil and waterThe construction of the project does not destroy any establishment

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4) The forecast of the possible quantity of the soil erosionAs for the dumping place, the sludge loss amount can be obtained through thisformula:

Qs= E Qsi , Qsi= r *MiWhere Qs--the total sludge loss amount during the construction

period;Qsi the amount of GAhJlIMM yearX Mi the total sludge desilted from year 1 to year iri the sludge loss rate (first year 30%. Second year 20%, third year

10%)According to calculation, if measures are not taken to conserve the soil andwater of the disposal dump, the sludge loss would be 352,000 m3 in the thirdconstruction year.The following formula is for the soil and water loss from the slope:

A=R * K- L * S * C * Pwhere A average soil erosion amount of unit area (tVa)

R rainfall erosion factor;K-soil erodibility factor;

L-slope length factor;S-slope factor;C-vegetation and management factor;P-soil and water conservation measures factor

By calculating, if measures are not taken to conserve soil and water, the totalsoil and water loss would amount to 3150t.5) the forecast of the possible damage caused by soil erosionTo some extent, the project construction will aggravate the degree of the soilerosion in the construction area. Effective protection, harness must be done,otherwise there will be the bad influence to the local soil and water resourcesand the ecological environment. The harm details as followed* It influences the water quality in riverThe construction makes the naked area increase, disturb primitive earthlayer and rock stratum. It destroys the soil organization. So the produce abilityof the soil reduce. This causes the soil erosion. Without effective measure, thecondition of the soil will worsen, and the ecological environment will bedestroyed. The sludge can not be protected and fathered promptly, with therain and artificial factors, the sand go into the river, and increase the quantity ofthe sands. So it influence the water quality of the river.* Threaten the security of the dikeWhen the new dyke is in storm, the rainwater will erode the naked soil. The soilerosion aggregate. If no proper measure being done to protect the dike. Thedike will be eroded and washed into gullies and collapsed pits andundermined.(3) The plan of the prevention and care of soil erosion

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1) The responsibility range of soil erosion and the design degreeAccording to the feature of the Dagu sewage drain river and the requirementsof the Technical Regulations of Soil and Water Conservation for ConstructionProjects (SL204-98), the responsibility range of the soil erosion preventionhas divided into two parts: the construction area and the directly effective area.The construction area includes the disposal dump 500mu, slopes790mu, thetotal being 1290 mu.The directly effective area includes the product and utility area 2509 Mu.According to the requirement of Technical Regulations of Soil and WaterConservation for Construction Projects, the stage of this plan keep feasible.2) the rule of drawing up the planAccording to the requirements of Technical Regulations of Soil and WaterConservation for Construction Projects, the plan should be suitable with thescale of the construction. The construction should decided by the fieldcondition. And it has the feature of low investment, convenient construction,economical and practical. Try to use the lands resources proper, at the sametime, to prevent the soil erosion and resume and improve the ecologicalenvironment. Together develop the ecological, social, and economic profit.3) the plan of harness in different parts* The measure of the water and soil conservation disposal placeAltogether five disposal dumps are planned to be set on discarded pits andfarmland, the total area being 500mu, in order to prevent the soil and watererosion, the cofferdam has been placed around disposal place, the design ofthe cofferdam has been added to the whole design of the construction project.When the sludge is dumped, soil would be put on top of it and trees would beplanted.* The measure of the water and soil conservation on the dikeThe outer slopes of the river courses within the Outer Loop Road are to becovered with stone pieces. So no extra soil erosion harness should be done.The outer slopes of the river courses beyond the Outer Loop Road needmore vegetation to prevent the happening of soil erosion* The measure of the water and soil conservation in the product and utility areaIn the working and living area, along the two banks of the river trees are to beplanted, covering 2509mu. When the construction is finished, the land will beleveled and views restored.(4) the arrangement for soil and water conservationsoil and water conservation measures is to be carried out on the requires of

3- at- the- same- time", coordinating the construction. It is to take soilpreparation and to make the area green by planting trees, flowers, etc. Themain point is to solve the problem of the soil erosion and protect the security ofthe dike.(5) Maintaining water and soil budgetThe investment of control project of Dagu river of discharging waste water and

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maintaining water and soil budget adds up to 2.413 million yuan, referring totable 5.4-4

Table 5.4-4INVESTME

UNITAMOUNT NT(TEN

No. ITEM PRICE ANNOTATION(MU) (YUAN) THOUSAND

YUAN)

Cost of controlling water Calculated into

1 and soil running off of investment of project and

stuffing area protecting environment

Cost of controlling water. ~~~~~~~~~~~~~Calculated into

2 and soil of dike withininvestment of project

outer rng route running off ivsmnofpje

Cost of controlling water

3 and soil beyond outer ring 661 3000 198.3

route running off

Cost of controlling water

and soil running off of4 2509 1 00 25.1

the area for

manufacturing and living

Total of from item 3to item5 223.4

6 Extra cost 17.9

7 Cost of design(6% of item 13.4

5 )_ _ _ _ _ __ _ _ _ _ _

Cost of

8 management( 4.5

2% of item 5)

9 Total investment 241.3

(6) Measures of guaranteeing the program carried out1)Measures of organizing leadersThe project should build a leader's organization for harmony and a departmentfor management, which are responsible for leading and organizing theimplementation of the project and establishing and perfecting the system andmethod of the program's implementation, verifying, checking in order toguaranteeing the program. put into effect.2) Measures for technological guaranteeing .The design of maintaining water and soil should be done by capable designingdepartment and companies to implement it should have rich experiences ofmaintaining water and soil. When the project is carried, they must do accordingto the scheme of maintaining water and soil strictly, strengthen skill training,unify the quality standard and improve the design level. Construction unit

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implementation unit and management department of maintaining water andsoil should strengthen cooperation, coordinate each other, develop advantageand assure project quality.3) Measures of capital resources and managing the usage of capitalWe believe "the exploiter should be responsible for protection and those whocause water and soil running off should be responsible for dispositionTherefore the capital of the project of Dagu disposal river for maintaining waterand soil should be put into the project budget, which is in use by theconstruction company. The special fund should be in use specially, which can'tbe moved to other usage and should reach the exact place on time.

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