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Dunbar Leachate Treatment Plant Dunbar Landfill Site, Oxwellmains Job No. 405.00036.00641 Non Technical Summary December 2014

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Dunbar Leachate Treatment PlantDunbar Landfill Site, Oxwellmains

Job No. 405.00036.00641

Non Technical SummaryDecember 2014

NON TECHNICAL SUMMARY

CONTENTS Introduction ................................................................................................................. 1

The Planning Application ......................................................................................... 1 Pollution Control Permit ........................................................................................... 1 Further Information .................................................................................................. 2 The Applicant .......................................................................................................... 2 SLR Consulting Limited ........................................................................................... 2

Site Description ........................................................................................................... 3 The Proposed Development ........................................................................................ 3

Rationale for the Development ................................................................................ 3 Infrastructure ........................................................................................................... 4 Process ................................................................................................................... 4 Construction ............................................................................................................ 5 Drainage .................................................................................................................. 5 Access ..................................................................................................................... 5 Vehicle Movements ................................................................................................. 5 Operating Hours, Lighting and Security ................................................................... 5

Environmental Impact Assessment ............................................................................. 5 Hydrology ................................................................................................................ 5 Ecology ................................................................................................................... 6 Other Environmental Issues .................................................................................... 7

Planning Policy ........................................................................................................... 9 Conclusion .................................................................................................................. 9 Next Steps .................................................................................................................. 9

DRAWINGS Drawing DB 1/1 Site Location Drawing DB 1/2 Site Boundary Drawing DB 3/2 Proposed Plant Layout

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INTRODUCTION

1. Viridor Waste Management Limited (VWM) is seeking planning permission for the construction and operation of a leachate treatment plant (LTP). The LTP would comprise a series of storage and treatment tanks located within a surfaced and bunded compound, together with lagoons and reed beds (the proposed development) on land at Dunbar Landfill Site. Leachate from the landfill would be treated to a suitable quality to enable discharge to a local watercourse.

2. The proposed development would be located on the southern side of the landfill site, between the existing haul road and peripheral site boundary screening bunds (the application site). The application site location and boundary are shown on Drawings DB 1/1 and DB 1/2, respectively.

The Planning Application

3. The planning application consists of five documents, in addition to the formal planning application forms and certificates, as follows:

Environmental Statement (ES);

A Non-Technical Summary (NTS) of the ES;

Planning Statement (PS);

Design and Access Statement (DAS); and

Pre-application Consultation (PAC) Report.

4. The proposed development falls within Schedule 2 of the Town and Country Planning (Environmental Impact Assessment) (Scotland) Regulations 2011 and therefore it was necessary to ‘screen’ whether the development would require an Environmental Impact Assessment (EIA). A screening request was submitted to ELC in January 2014 and ELC adopted a ‘Screening Opinion’ that EIA is required on 13th February 2014. Subsequently, a request was submitted to ELC to adopt a Scoping Opinion as to the extent of environmental studies to be carried out. ELC adopted a ‘Scoping Opinion’ in May 2014 and subsequently an EIA was carried out. The ES reports the findings of the EIA.

5. This document is a Non-Technical Summary of the findings of the EIA carried out to predict and assess the potential significant environmental effects of the proposed development. It provides in non-technical language, a brief summary of the proposed development together with the likely significant effects it would have on the environment. It has been prepared by SLR Consulting Limited (SLR) on behalf of VWM.

Pollution Control Permit

6. The Dunbar Landfill Site is operated under an Environmental Permit issued and regulated by the Scottish Environment Protection Agency (SEPA). The applicant has engaged with SEPA regarding the proposed development and has submitted a PPC Permit Variation Application for consideration by SEPA.

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Further Information

7. Copies of the ES and other documents listed above can be obtained from SLR and VWM at the following addresses:

SLR Consulting Ltd No.4 The Roundal Roddinglaw Business Park Gogar Edinburgh EH12 9DB

Viridor Waste Management Ltd Dunbar Landfill Site Oxwellmains Dunbar East Lothian EH42 1SW

8. The ES and other volumes are available in both paper and CD Rom formats. The CD copies are available for a charge of £5 however due to the size of the application and printing costs there is a charge of £110.00 per hard copy. A copy of the NTS is available free of charge on request. Copies of the ES can also be downloaded from VWM’s website: http://www.viridor.co.uk/our-developments/dunbar-leachate-treatment-plant.

The Applicant

9. Viridor Waste Management is one of the UK’s leading recycling, renewable energy and waste management companies. Viridor offers a comprehensive range of waste management services and aims to transform waste into high quality recyclables, raw materials and energy. Each year Viridor Waste Management transforms over two million tonnes of materials into recyclate, and produces over 760 gigawatt hours of renewable energy. In total it safely manages over eight million tonnes of recyclables and waste materials for customers from all sectors across the UK.

10. Viridor Waste Management has invested over £100 million in new recycling infrastructure in Scotland and has recently announced plans to invest £25 million to develop an advanced glass recycling centre at Newhouse in Lanarkshire with capacity to recycle up to 200,000 tonnes of glass per year. Viridor operate community funds in Scotland which have distributed over £3.5 million to more than 135 community, heritage and biodiversity projects in Scotland in the last 11 years.

SLR Consulting Limited

11. SLR is an environmental consultancy with an unrivalled reputation for providing high quality tailored services. SLR specialises in the energy, waste management, mining & minerals, infrastructure, planning & development, and industrial sectors.

12. SLR has considerable experience in undertaking environmental impact assessment for waste management facilities and is a Registered Environmental Assessor Member of the Institute of Environmental Management and Assessment (IEMA) and holder of the EIA Quality Mark (http://www.iema.net/qmark).

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SITE DESCRIPTION

13. The application site is located within the boundary of the Dunbar Landfill Site, approximately 4.5km south east of the town of Dunbar, within the administrative area of East Lothian Council.

14. The application site is roughly triangular in shape extending to around 2.2 hectares (ha). It is bounded to the east by the Dry Burn; the Dry Burn flows in a north-easterly direction and is flanked on either side by grassland and mature trees which provide screening for the landfill operations. To the south the application site is bounded by a landscaped screen bund, beyond which is the A1. The screen bund is approximately 5 metres high with an established grass sward and planted with trees. To the north and east the application site is bounded by a belt of mature trees planted to screen the landfill operations from the surrounding area. To the north of the plantation is an internal haul road, beyond which is the landfill site.

15. Land within the application site is currently occupied by rough grassland, trees, a screening bund and two short sections of haul road which provide access to the main part of the application site. The land within the application site slopes gently downwards in an easterly direction.

16. The area immediately surrounding the landfill is mainly open countryside and agricultural land, punctuated with individual properties/farmsteads. The villages of Innerwick and Skateraw are located around 1.5km to the south and 2km east of the application site respectively.

17. The A1 dual carriageway is adjacent to the south west of the landfill site and within close proximity to the application site. The East Coast mainline railway is located 20m to the north of the landfill site.

THE PROPOSED DEVELOPMENT

Rationale for the Development

18. The proposed development (for which planning permission is sought) is the construction and operation of a LTP for the treatment of leachate from Dunbar Landfill Site.

19. Landfill sites generate leachate when water (mostly from rainfall but also from moisture created from decomposing waste) collects in the waste disposal area (known as a landfill cell). In order to prevent the build up of leachate within the base of the landfill, each cell is constructed with a drainage layer of granular material or pipe work on top of an impermeable barrier (known as the liner). The impermeable barrier and drainage layer are constructed at a gradient to allow leachate to flow to a collection sump where it is pumped out of the landfill cell as necessary.

20. At Dunbar Landfill Site, leachate is currently pumped from the landfill cells to an open lagoon before being removed from the site by tanker for treatment at a local Scottish Water waste water treatment works.

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21. It is proposed that leachate be treated on site which would lead to a reduction in vehicle movements associated with the treatment of leachate (refer to paragraph 31 below).

Infrastructure

22. The proposed LTP would consist of a number of storage and processing tanks constructed from, depending on the function of the tank, concrete, HDPE or glass coated steel. A palate of dark grey, dark green and black matt finishes would be utilised for the tanks and containers which would be in keeping with the existing colour palate of built form on the landfill site and would minimise the visual appearance of the proposed development in the surrounding landscape. The tanks would be located within a hard surfaced area, which would be bunded1 at the edges by a concrete wall approximately 1m high. The proposed plant layout is shown on Drawing DB 3/2.

23. The proposed development is described in detail in ES Chapter 3 (Proposed Development). In summary the development would comprise:

six standard-sized shipping containers housing an office and laboratory; control room; chemical dosing and pump; tools and equipment storage; metals stripping skid; and metals stripping consumables store;

three large tanks for storage and processing which would be up to 24m in diameter and up to 8.5m high;

three smaller tanks for storage and processing which would be up to 13m in diameter and up to 3m high;

three self-bunded chemical dosing tanks which would be approximately 5m diameter and 4m deep;

wetlands and a lagoon;

pump house; and

ancillary plant and infrastructure (e.g. pipework).

24. In total the LTP would cover an area of around.2.2ha; of this 0.6ha would be associated with the tanks and infrastructure, with the remainder comprising the lagoons, ditches, access tracks and perimeter vegetation.

Process

25. The chosen technology for the LTP is the well-established activated sludge process. This process uses a combination of aeration, chemical and biological treatment methods to reduce levels of contaminants to a suitable level to allow the treated leachate to be discharged to a local watercourse.

26. The LTP has been designed to treat up to 100m3 of leachate per day, which equates to 36,500m3 or 36,500 tonnes of leachate per year. It is anticipated that the maximum discharge rate to the Dry Burn would be 150m3 of treated effluent per day; this would be confirmed through the PPC permit variation process. Only leachate generated from Dunbar landfill would be treated at the proposed LTP.

1 as per the SEPA Sector Guidance Note IPPC S5.03.

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Construction

27. It is anticipated that construction would take around 12-16 weeks.

Drainage

28. Surface water would be drained from the hard standing area around the LTP and would drain through the existing surface water management system.

Access

29. The landfill site has direct access onto the A1807, which in turn provides access to the north and south bound carriageways of the A1. Access to the LTP would be off an existing haul road within the landfill.

30. The layout of the LTP has been designed to provide vehicle access along the western and southern side of LTP for maintenance and delivery of chemicals and other consumables used in the treatment process.

Vehicle Movements

31. As noted above, leachate is currently stored in lagoons before being exported from the site by road tankers to a waste water treatment facility. This results in between 80 and 100 HGV movements (i.e. 40 to 50 in and 40 to 50 out of the site) each month. With the LTP, this would significantly reduce to an average of 2 to 4 HGV movements per month. Reducing HGV movements would lead to a reduction in carbon emissions associated with the treatment of leachate as well as a reduction in environmental effects associated with the movement of HGVs along the highway network.

32. It is anticipated that the construction phase of the LTP would not generate a substantial increase in traffic movements above the day to day landfill traffic.

Operating Hours, Lighting and Security

33. As leachate is being continuously generated by the landfill, the LTP would operate 24 hours a day, 7 days a week.

ENVIRONMENTAL IMPACT ASSESSMENT

34. The following is a brief non-technical summary of the technical chapters contained in the ES.

Hydrology

35. The groundwater and surface water regimes at the application site and the surrounding area have been subject to detailed assessment. The full assessment is provided as Chapter 6 of the ES.

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36. A desk-top study of available data has been used to inform site design and therefore minimise the potential effects associated with the construction and operation of the LTP.

37. It has been established that the proposed LTP would have no material effects upon the hydrogeology of the area.

38. Where necessary mitigation measures have been proposed to safeguard the Dry Burn which in turn also protects indirectly the Barns Ness Coast Site of Special Scientific Interest (SSSI). These measures include storing leachate in tanks above an impermeable surface so as to remove a potential pathway to groundwater; bund the leachate treatment area so that in the unlikely event of tank failure a secondary containment is provided to prevent an uncontrolled discharge to the Dry Burn or ground water; and the proposed reedbeds would have a low permeability lining so as to prevent percolation to groundwater.

39. The operation and management of the proposed LTP have been discussed with SEPA and incorporated in the outline site design. This includes the ability to divert leachate away from the LTP in periods of low flow in the Dry Burn and re-circulate leachate back to the landfill when little dilution capacity in the Dry Burn is available. The LTP control systems would have the ability to detect periods of low leachate production (anticipated as being when there is little rainfall so concurrent with low flow in the Dry Burn) and would automatically ‘turn down’ treatment rates and alert VWM staff.

40. The performance of the identified mitigation measures would be kept under constant review by a comprehensive water monitoring schedule.

41. Subject to the employment of appropriate mitigation measures, the proposed LTP is not predicted to have any significant effects upon groundwater or surface water

receptors.

Ecology

42. An assessment if the potentially significant impacts of the proposed LTP on habitats and non-avian species of conservation interest was completed. The full assessment is provided in Chapter 7 of the ES.

43. A wide range of detailed ecological data was collated from various sources including a variety of nature conservation organisations such as local recorders (the Lothian and Borders Badger Group for example) and the National Biodiversity Network (NBN) database.

44. There are no statutory designated sites (i.e. Special Protection Area (SPA), Special Area of Conservation (SAC), Site of Special Scientific Interest (SSSI)) within the site boundary of the application site. The nearest nationally designated site is the Barns Ness Coast SSSI, which is designated for its lower carboniferous stratigraphy and its salt marsh, shingle and sand dune habitats. East Lothian Council has also designated the Dry Burn as being of local conservation interest and as such it is listed as a Scottish Wildlife Trust Local Wildlife Site.

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45. The application site comprises of coarse grassland and mixed coniferous and deciduous plantation woodland that is approximately 20 years old.

46. Although the Dry Burn is outwith the boundary of the application site it was also assessed as it would be subject to the potential effects of the treated leachate. The vegetation along the banks consisted of plantation woodland and mixed herb species.

47. the ecological assessment concludes that the quality of the leachate to be discharged into the Dry Burn would be of such a quality as to have little or no impacts upon the ecology of the Burn. It is therefore assessed that there would be no change from baseline conditions for this Wildlife Site. Further, the significance of impacts on the Barns Ness Coast SSSI would be negligible

48. The proposed LTP has been designed to mitigate potential impacts or at least provide alternative habitats where possible. Such mitigation design has been based on, or developed from, best practice guidance and would ensure that the residual effects would be negligible.

Other Environmental Issues

49. The following section draws together and summarises the other potential environmental effects of the proposed development that have been ‘scoped out’ of the EIA, during the scoping process described in paragraph 4. These are detailed in Chapter 8 of the ES.

Landscape and Visual Amenity

50. A Landscape and Visual Assessment Report (Appendix 8/1 of the ES) has been prepared to determine the impacts of the proposed LTP on landscape character and visual amenity within a 3km study area. The assessment involved a desk study, computer modelling and field survey and was undertaken in accordance with published guidance.

51. The assessment concluded that the proposed LTP would occupy a minor part of the operational Dunbar Landfill Site. Due to its location between existing screening bunds and associated tree cover, it would have very limited visibility from the surrounding area.

52. The proposed development would result in either no change or negligible magnitude of change at the representative viewpoints, and therefore no significant impact on visual amenity for nearby residents, users of recreational facilities or areas as well as road and rail users.

Archaeology and Cultural Heritage

53. An assessment of the cultural heritage within the application site and the surrounding area was carried out.

54. The application site lies within the boundaries of the Battle of Dunbar II but is not identified as a significant area of the battlefield. This more northerly part of the

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battlefield has previously undergone significant change through quarrying, as well as railway and road development.

55. As noted in the Landscape and Visual Assessment Report the visibility of the proposed LTP from the surrounding area is limited. The proposed development would be screened by an existing bund and tree planting that would mean that there would be few visual changes introduced into the battlefield landscape. The low importance of this area of the battlefield, combined with the lack of visibility of the development beyond the area of that development means that the significance

of the impact on the setting of the battlefield is negligible.

Traffic and Transportation

56. As noted above, leachate is currently stored in lagoons pending export from the site by road tankers to a waste water treatment facility. This results in between 80 and 100 HGV movements (i.e. 40 to 50 in and 40 to 50 out of the site) each month. With the LTP, this would significantly reduce to an average of 2 to 4 HGV movements per month. Reducing HGV movements would lead to a reduction in carbon emissions associated with the treatment of leachate as well as a reduction in environmental effects associated with the movement of HGVs along the highway network.

Air Quality

57. There are no significant emissions of dust because no solid wastes would be accepted at the proposed LTP. Volatile Organic Compounds (VOCs) are not typically associated with leachate and therefore are not considered to be significant.

58. The development of the proposed LTP would result in a significant reduction in HGV movements associated with off-site disposal of leachate as described in the Traffic and Transportation section above. This reduction in HGV movements would have a positive impact on local communities and the surrounding highway network in terms of reducing traffic associated emissions.

59. Potential sources of odour are associated with emissions from process point sources. All tanks containing raw and partially treated leachate are covered. All inputs are via closed connections which effectively eliminate odour emissions. Furthermore, the nature of the process serves to reduce odour.

Noise

60. It is considered that no additional sources of noise and vibration to those identified in the original PPC Permit Application for Dunbar Landfill site would arise from the future operation of the of the proposed LTP. Noise generated during construction and operation of the proposed development would be managed in accordance with the requirements of the PPC Permit and therefore be controlled in accordance with Management Plans approved by SEPA.

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61. The reduction in HGV movements would have a positive impact on local communities and the surrounding highway network in terms of reducing traffic and associated noise.

PLANNING POLICY

62. The ES sets out the key planning policies and other material planning considerations that have been taken into account as part of the EIA. A separate appraisal of the proposed development against those policies has been undertaken and is presented in the Planning Statement which forms part of the planning application but is not part of the ES.

CONCLUSION

63. Viridor Waste Management Limited is applying for planning permission to install and operate a leachate treatment plant on land at Dunbar Landfill Site.

64. An EIA has been undertaken and has demonstrated that there are no predicted significant adverse environmental effects arising from the proposed development.

NEXT STEPS

65. East Lothian Council will now consider the planning application and in doing so will consider amongst other things the findings of the EIA. Before making a decision on the application, the Council will seek further advice from a number of consultees including Scottish Natural Heritage and Scottish Environment Protection Agency and will consider all representations received from other parties including members of the public.

Drawings

EAST BARNS

FARM

SKATERAW

A1 - DUAL

CARRIAGEWAY

THURSTON MANOR

HOLIDAY PARK

INNERWICK

EASTER

PINKERTON

MEIKLE

PINKERTON

EAST COAST

RAILWAY

DUNBAR

CEMENT WORKS

PROPOSED LEACHATE

TREATMENT PLANT

APPLICATION SITE

LAND OWNED BY VIRIDOR

WASTE MANAGEMENT

Scale Date

4 THE ROUNDAL

RODDINGLAW BUSINESS

PARK, GOGAR

EDINBURGH. EH12 9DB

T: 0131 335 6830

F: 0131 335 6831

www.slrconsulting.com

LEGEND

00036.00641.18.D

B1-1.0.S

ite_Location_P

lan.dw

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ALL RIGHTS RESERVED. LICENCE NUMBER AL100012293

REPRODUCED BY PERMISSION OF ORDNANCE SURVEY ON

BEHALF OF HMSO. CROWN COPYRIGHT AND DATABASE RIGHT

OS DATA LICENCE EXPIRATION:

N

W

S

E

DB 1/1

1:25,000 @ A4 DECEMBER 2014

SITE LOCATION PLAN

EIA AND PLANNING APPLICATION

DUNBAR LEACHATE TREATMENT PLANT

22/05/2015

B

T

B

T

P

O

N

D

2

P

O

N

D

1

B

L

U

E

L

A

K

E

A

R

T

H

U

R

S

L

A

K

E

SITE

ENTRANCE

EAST BARNS

FARM

A1

SITE

OFFICES

EASTER

PINKERTON

MEIKLE

PINKERTON

DUNBAR

CEMENT WORKS

EXISTING

SCREENING BUND

DRY

BURN

A1

675000N

676000N

677000N

371000E

372000E

373000E

TEMPORARY

RESTORED AREA

ACTIVE WASTE

DISPOSAL AREA

R

e

c

e

p

t

i

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n

H

a

l

l

B

u

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k

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l

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ENERGY FROM

WASTE CENTRE

PROPOSED LEACHATE

TREATMENT PLANT

APPLICATION SITE

LAND OWNED BY VIRIDOR

WASTE MANAGEMENT

Scale Date

4 THE ROUNDAL

RODDINGLAW BUSINESS

PARK, GOGAR

EDINBURGH. EH12 9DB

T: 0131 335 6830

F: 0131 335 6831

www.slrconsulting.com

LEGEND

00036.00641.18.D

B1-2.0.S

ite_B

oundary.dw

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ALL RIGHTS RESERVED. LICENCE NUMBER AL100012293

REPRODUCED BY PERMISSION OF ORDNANCE SURVEY ON

BEHALF OF HMSO. CROWN COPYRIGHT AND DATABASE RIGHT

OS DATA LICENCE EXPIRATION:

N

W

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DB 1/2

1:10,000 @ A3 DECEMBER 2014

SITE BOUNDARY

EIA AND PLANNING APPLICATION

DUNBAR LEACHATE TREATMENT PLANT

SUPPLIED BY CLIENT

ENERGY FROM

WASTE CENTRE

IL

S

M

S

M

STOCKPILE

HARDCORE

STOCKPILE

GLASS

FINES

A1

371200E

675200N

675400N

675600N

371400E

371600E

371800E

A

A

B

B

WETLAND 1

(1,420m²)

WETLAND 2

(1,041m²)

EFFLUENT LAGOON

(2,000m³)

PUMP HOUSE

STORAGE CONTAINERS

SLUDGE DRYING

WETLAND (550m²)

PROPOSED TREATED

LEACHATE DISCHARGE POINT

ACCESS GATE

PERMANENT

ACCESS

TEMPORARY

CONSTRUCTION

ACCESS ROAD

SLUDGE TANK

TARMAC

GRANULAR

BAUER FITTING

FOR TANKERING

EMERGENCY SHOWER

3NO. BAUER TYPE FITTING

FOR CHEMICAL DELIVERY

CHEMICAL DOSING/

PUMP CONTAINER

V

E

H

I

C

L

E

A

C

C

E

S

S

ACCESS

GATE

ANZ TANK

STORAGE CONTAINER

AEZ

TANK

EBT

RLBT

UF

OFFICE &

LABORATORY

3 No SELF BUNDED

CHEMICAL TANKS

CONTROL ROOM

2NO. BLOWERS

C

C

INCOMING PIPEWORK

CONNECTION POINT

PROPOSED LEACHATE

TREATMENT PLANT

APPLICATION SITE

LAND OWNED BY VIRIDOR

WASTE MANAGEMENT

Scale Date

4 THE ROUNDAL

RODDINGLAW BUSINESS

PARK, GOGAR

EDINBURGH. EH12 9DB

T: 0131 335 6830

F: 0131 335 6831

www.slrconsulting.com

LEGEND

00036.00641.18.D

B3-2.0.P

roposed_P

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REPRODUCED BY PERMISSION OF ORDNANCE SURVEY ON

BEHALF OF HMSO. CROWN COPYRIGHT AND DATABASE RIGHT

OS DATA LICENCE EXPIRATION:

ALL RIGHTS RESERVED. LICENCE NUMBER AL100012293

N

W

S

E

DB 3/2

1:2,000 @ A3 DECEMBER 2014

PROPOSED PLANT LAYOUT

EIA AND PLANNING APPLICATION

DUNBAR LEACHATE TREATMENT PLANT

SUPPLIED BY CLIENT

PLANTING

GRASSLAND

RAW LEACHATE

BALANCE TANK

ULTRA-FILRATION PLANT TANK

AERATION ZONE TANK

ANOXIC ZONE TANK

EFFLUENT BALANCE TANK

RLBT

UF

AEZ

ANZ

EBT

TARMAC

GRANULAR

DIRICKX FENCING 1.8m HIGH

CHAIN LINK FENCING 1.8m HIGH

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