london gatwick airport water quality management action plan · introduction | london gatwick...

London Gatwick Airport Water Quality Management Action Plan2009-2011

www.gatwickairport.com

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Contents

01 Introduction02 Legislative, regulatory and policy context03 Development of the action plan04 The actions05 Implementing the action plan06 Glossary

Contents | London Gatwick Airport: Water Quality Management Action Plan

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Introduction | London Gatwick Airport: Water Quality Management Action Plan

01Introduction

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Position

GatwickAirportistheworld’sbusiestsinglerunwayairportand,intheUK,secondonlytoHeathrowintermsofpassengerthroughput,whichwascloseto35millionin2008.Theairportisalsoanimportantpublictransporthub,withfrequentrailservicestoLondon,anddirectorconnectingrailorcoachservicestomanytownsinSouthEastEnglandandelsewhereintheUK.

Passengernumbersarecurrentlyforecasttoincreasetoaround40millionin2018,inlinewithgovernmentpolicytomakefulluseofexistingairportrunways.TheGatwickAirportInterimMasterPlan(October2006)explainsthecharacterandimplicationsofGatwick’sgrowthasasinglerunwayairportovertheperiodto2015and,for2030,outlinesscenarioswitheitheroneortworunways.

Thescaleofexistingandfutureactivityattheairportbringsappreciablebenefitstothelocal,regionalandnationaleconomies,butalsohasenvironmentalimpactsthatneedtobemitigatedand/ormanaged.

Our environmental policy

Thescaleofexistingandfutureactivityattheairportbringsappreciablebenefitstothelocal,regionalandnationaleconomies,butwealsorecognisethatouroperationhasimpactsontheenvironment,andthatthegrowthofactivityattheairporthasthepotentialtoincreasethoseimpacts.Ourenvironmentalpolicystatesthat:

Wearecommittedtominimisingtheimpactsofourgrowingbusinessontheenvironmentandlocalcommunities,throughthecontinuousimprovementofitsenvironmentalperformance.Wewillstrivetoactasresponsiblestewardsoftheenvironmentatalltimes.

ThiscommitmentisformalisedinanagreementbetweenCrawleyBoroughCouncil,WestSussexCountyCouncilandGAL.ThisagreementsetsouttheGAL’sapproachtoourenvironmentalmanagementandstewardshipinaseriesofobjectivesandcommitments.

Aproportionoftheidentifiedcommitmentstaketheformof’obligations’inalegalagreementbetweenGAL,CrawleyBoroughCouncilandWestSussexCountyCouncil.ThiswassignedinDecember2008,andcoverstheperioduntil2015.TheobligationswithintheAgreement,amongothertargets,relatetotheproduction,auditingandperiodicreviewofanumberofActionPlans,ofwhichthisisoneexample.

01 Introduction

ThisdocumentistheWaterQualityActionPlanandcoverstheyears2009-2011.Itisimportantthatactivitiesatairportsdonotcontaminatesurfacewaterrun-offormateriallyaltertheriskofflooding.Thisisbecausefloodingcanresultinpotentiallyseriousconsequencesforbiodiversity,theaquaticenvironmentandproperty.Thewaterenvironmentissubjecttostatutorycontrols,andtheEnvironmentAgency,asthestatutorybodyresponsibleforthewaterenvironment,issuesdischargeconsentsthatcontrolthevolumeandqualityofdischargesto’controlledwaters’,whichincluderiversandstreams.Dischargeconsentshavelegally-bindingtermsandconditionsregardingthequalityandquantityofeffluentdischargedtocontrolledwaters.

Ourwaterqualityobjectiveisto’manageairportassetsandactivitiestomitigateGatwickAirport’simpactonthewaterenvironment’.

Thisobjectiveissupportedby3ofthecommitmentsresultingfromtheagreementbetweenus,WestSussexCountyCouncilandCrawleyBoroughCouncilandformsthebasisofthisactionplan:

Wewillpublishawaterqualityactionplanandwillreviewitnolessfrequentlythaneverythreeyears.Theactionplanwilldescribeourapproachtothemanagementoftheairportsurfaceandfoulwaterassetsinordertoensurecomplianceswithdischargeconsentsandotherregulatoryrequirements.

WewillmaintainregulardialoguewiththeEnvironmentAgency,ThamesWaterandotherkeystakeholdersandtoensuremutualunderstandingofdrainage,floodriskandwaterqualityissuesoccurringwithin,orpotentiallyemanatingfromtheairport.

GatwickAirportwillmonitorandreportannuallyon:

•awaterchemistrymonitoringprogramme(including BiologicalOxygenDemandandChemicalOxygen Demand);•biologicalmonitoring;•compliancewithrelevantwaterqualitymanagement MDIsandlegislativerequirements;and•dischargeratesfromtheairport’smainpond(PondD).

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The content of the Action Plan is as below:

ThisWaterQualityManagementActionPlanisstructuredasfollows:

Section 2 Summarisesthelegislative,regulatoryandpolicycontextconcerningutilityconsumption.

Section 3 Explainshowtheactionssetoutinthisplanhavebeendevelopedandagreed.

Section 4 RecordstheactionsGALisproposingtoundertake

Section 5 Detailsthemeansbywhichtheactionplanistobeimplemented.

Section 6 Glossary.

01 Introduction

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Legislative, regulatory and policy context | London Gatwick Airport: Water Quality Management Action Plan

02Legislative, regulatory and policy context

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Thissectionsummarisestheprincipallegislation,policiesandregulationsrelatingtothemanagementandtheprotectionofwaterresourcesandwaterquality,bothregionallyandwithintheUKandEUcontext.LegislativerequirementsconcerningtheprotectionofthewaterenvironmentincludetheEnvironmentalProtectionAct,theWaterResourcesActandGroundwaterRegulationsinEnglandandWales,andtheWaterFrameworkDirectiveinEuropeanlegislation.

European regulatory framework

Water Framework Directive

TheEUWaterFrameworkDirective(WFD)2000/60/ECisfocusedondeliveringanintegratedapproachtotheprotectionandsustainableuseofthewaterenvironmentonariverbasinscale.TheprincipalobjectiveswithintheWFDare:nodeteriorationinstatusand’goodstatus’intermsofbothecologyandwaterqualityforsurfacewaters,andintermsofbothquantityandqualityforgroundwaterby2015.

Itisdesignedto:

•enhancethestatusandpreventfurtherdeteriorationofaquaticecosystemsandassociatedwetlands,whichdependontheaquaticecosystems

•promotethesustainableuseofwater

•reducepollutionofwater,especiallyby’priority’and’priorityhazardous’substances(throughDaughterDirectives)

•ensureprogressivereductionofgroundwaterpollution.

MoredetailoftheWaterFrameworkDirectivecanbefoundontheDefraandEnvironmentAgencywebsites:

www.defra.gov.uk/Environment/water/wfd

www.environment-agency.gov.uk/subjects/waterquality/955573/

Urban Wastewater Treatment Directive

AnotherECDirectivethatappliestothewastewateranddischargesgeneratedfromtheairportistheUrbanWastewaterTreatmentDirective,whichwasadoptedbymemberstatesinMay1991andtransposedintolegislationacrosstheUKbytheendofJanuary1995.Itsobjectiveistoprotecttheenvironmentfromtheadverseeffectsofsewagedischarges.Itsetstreatmentlevelsonthebasisofsizesofsewagedischargesandthesensitivityofwatersreceivingthedischarges.

02 Legislative, regulatory and policy context

Moredetailscanbefoundon:

www.defra.gov.uk/Environment/water/quality/uwwtd/default.htm

Freshwater Fish Directive

TheECDirectiveonFreshwaterFishisdesignedtoprotectandimprovethequalityofriversandlakestoencouragehealthyfishpopulations.Itsetswaterqualitystandardsandmonitoringrequirementsforareasofwaterwhicharechosen,or’designated’byDefra.

In2013,thisdirectivewillberepealedundertheWaterFrameworkDirective.

Floods Directive

TheEuropeanDirectiveontheAssessmentandManagementofFloodRisks(2007/60/ECof23October2007)(theFloodsDirective)isdesignedtohelpmemberstatespreventandlimitfloodsandtheirdamagingeffectsonhumanhealth,theenvironment,infrastructureandproperty.ThiswillbebroughtintoforcebySeptember2009.Moreinformationisavailableon:

www.defra.gov.uk/environ/fcd/eufldir/default.htm

UK regulatory framework

Environmental Protection Act

TheEnvironmentalProtectionAct1990introducestheconceptofintegratedpollutioncontroltopreventpollutionfromemissionstoair,landorwater.Regulationsalsoplacea’dutyofcare’onthoseinvolvedinthemanagementofwaste,beitcollecting,disposingortreatingcontrolledwastewhichissubjecttolicensing.

Water Resources Act

TheWaterResourcesAct1991(amendedin1999andbytheWaterActin2003)setsoutregulatorycontrolsforwaterabstraction,dischargetowaterbodies,waterimpoundmentandprotectionofwaterresources.UndertheActitisanoffence’tocauseorknowinglypermit’:

•Poisonous,noxiousorpollutingmatter,oranysolidwastematter,toentercontrolledwaters;

•Anymattertoentercontrolledwaterssoastocauseoraggravatepollutionbyimpedingflow;

•Matter,otherthanpermittedtradeorsewageeffluent,tobedischargedtoasewer.

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capableofbeingamaterialplanningconsideration,thattheplanningsystemplaysakeyroleindeterminingthelocationofdevelopmentwhichmaygiverisetopollution,eitherdirectlyorindirectly,andthatwherepollutionissuesarelikelytoarise,developersshouldholdinformalpre-applicationdiscussionswiththeLPA,therelevantpollutioncontrolauthorityand/ortheenvironmentalhealthdepartmentsoflocalauthorities.

Regional policies

Therearemanypiecesofregionalpolicywhichseektomanagewaterresourcesandwaterqualityandreduceanyimpactsfromthedischargesofpollutantsintothewaterenvironment.

Regional Spatial Strategy (RSS) for the South East (Regional Planning Guidance 9)

ThecurrentadoptedregionalplanningpolicyfortheSouthEastregionisRegionalPlanningGuidance9(RPG9)–thecurrentRegionalSpatialStrategyfortheSouthEast.ThiswaspublishedinMarch2001andcoverstheperiodupto2015.HoweverthispolicyistobereplacedshortlybytheSouthEastPlan-whichisafullrevisionofRPG9–tocovertheperiodto2026.

ThecurrentRSSencouragesgreaterconsiderationwhenplanningnewdevelopmenttoavoidareasatriskfromfloodingandtakeintoaccounttheavailabilityofwaterresources.TheRSSsetsoutpoliciesspecificallyreferringtomanagingfloodriskandconsideringthewatercyclewhenplanningfordevelopment1.Waterefficiencymeasuresandtheminimisationofadverseimpactsuponwaterresources,quality,regime,ecologyandgroundwaterarealsoencouraged.

TheSouthEastPlanplacesconsiderableemphasisonincreasingtheefficiencyofresourceuse,especiallynaturalresourcessuchaswater2.ThePlanprovidesdetailedpolicyguidanceforthesustainablemanagementofnaturalresources.Italsoincludespoliciesrequiringwatersupplyandqualitytobeprotected,maintainedandenhancedandalsofordemandtobemanaged(NRM1andNRM2);waterresourcedevelopmenttobepursued(NRM3);andtoensuresustainablefloodriskmanagementisachieved(NRM4).Inparticular,policyNRM1statesthatLPAsshoulddirectnewdevelopmenttoareaswhereadequatewatersupplycanbeguaranteedfromexistingandpotentialwatersupplyinfrastructure.

West Sussex Structure Plan 2001-2016

ProtectingtheenvironmentandusingnaturalresourcesandassetswiselyisoneofthecoreaimsofthisPlan.Policy

Groundwater Regulations

TheexistingGroundwaterDirective(80/68/EEC)aimstoprotectgroundwaterfrompollutionbycontrollingdischargesanddisposalsofcertaindangeroussubstancestogroundwater.IntheUK,theDirectiveisimplementedthroughtheGroundwaterRegulations1998,whichrequirethepreventionofListIsubstancesenteringgroundwaterandthecontrolofListIIsubstancestoavoidpollutionofgroundwater.WithinthecontextoftheWFD,legislationwillbeenactedinduecoursetointroducetheGroundwaterDaughterDirectivewhichwillseektopreventdeteriorationingroundwaterquality;theWFDwillreplacetheexistingGroundwaterRegulations.

Land Drainage Act

TheLandDrainageAct1991and1994placesresponsibilityformaintainingflowsinwatercoursesonlandowners.TheActgivesthelocalauthoritiespowerstoserveanoticeonlandownerstoensureworksarecarriedouttomaintainflowofwatercourses.

Flood Risk Policy (Planning Policy Statement 25: Development and Flood Risk)

PPS25setsoutthegovernmentpolicyrelatingtodevelopmentandfloodrisk.Itsaimsaretoensurethatfloodriskistakenintoaccountatallstagesintheplanningprocesstoavoidinappropriatedevelopmentinareasatriskofflooding,todirectdevelopmentawayfromtheareasofhighestrisk,andtopreventnewdevelopmentincreasingfloodriskelsewhere.PPS25shouldbeconsideredwithregardtothepotentialoperationofasecondrunwayoranyotherextensiontotheairportanditsactivities.

Inresponsetothefloodsof2007,andthefollowingPittReportontheeventsleadinguptotheflooding,thegovernmentareupdatingfloodinglegislationintooneunifyingActofParliament,asrecommendedbySirMichaelPitt.ThedraftFloodsandWaterBillisdueforconsultationinspring2009,andwillcoverallsourcesofflooding,clarifyingresponsibilityforeachfloodingsourceandfacilitatingappropriatefloodriskmanagement.TheBillwillalsoincorporateguidancefromtheDEFRApublicationsMaking Space for Water and Future Water.

Planning Policy Statement 23: Planning and Pollution Control

PPS23isintendedtocomplementthepollutioncontrolframeworkunderthePollutionPreventionandControlAct1999andthePPCRegulations2000.Itadvisesthatanyconsiderationofthequalityofland,airorwaterandpotentialimpactsarisingfromdevelopment,is

1PolicyINF1statesthatdevelopmentshouldbeguidedawayfromareasatriskorlikelytobeatriskinfuturefromflooding,orwhereitwouldincreasetheriskofflooddamageelsewhere.PolicyINF2requiresnewdevelopmenttobelocatedanditsimplementation

plannedinawaywhichallowsforsustainableprovisionofwaterservicesandenablestimelyinvestmentinsewagetreatmentanddischargesystemstomaintaintheappropriatestandardofwaterquality.

2PoliciesCC1andCC3outlinetheneedtoaddressresourceuseintheSouthEastandmakingthisasustainabledevelopmentpriority.PolicyCC2detailsclimatechangeadaptationmeasureswhichincludeguidingstrategicdevelopmenttolocationsnotatrisk

fromfloodingandwatershortages;includingsustainabledrainagemeasuresandhighstandardsofwaterefficiencyinnewandexistingbuildings;andincreasingfloodstorageanddevelopingsustainablenewwaterresources.

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ERA4statesthatnodevelopmentshouldbepermittedinareasathighriskofflooding,andthatmeasuresmustbeprovidedtomanagesurfacewaterrunoffandreducefloodrisk,whereappropriate,throughsustainabledrainagesolutions.PolicyERA5statesthatdevelopmentshouldnotbepermittedunlessthequalityof,andwhereappropriatethequantityofwaterresourcesoftheCountywillbeprotectedand,wherepossible,enhanced.Inseekingtoprotectwater,localauthoritiesshouldcontinuetomonitorexistingandpotentialwaterpollution.

Local policies

CrawleyBoroughLocalDevelopmentFrameworkCoreStrategy(adoptedNovember2007)

TheLocalDevelopmentFrameworkencourageswaterconservation,promotesthere-useofwastewaterandprotectionofnaturalresourcesbysettingoutanumberofenvironmentalobjectives,suchastoprotectandenhancedesignatedsites,increasethebiodiversityandrangeofnaturalhabitats,enhancethevalueoftheBorough’snaturalassetsandensureallnewdevelopmentrespectsthedistinctivequalityofCrawley’sbuiltandnaturalenvironment.

Environment Agency Pollution Prevention Guidance

TheEnvironmentalAgencyhasproducedarangeofPollutionPreventionGuidanceNotes(PPGs),witheachPPGtargetedataparticularindustrialsectororactivityandgivingadviceonthelawandgoodenvironmentalpractice.ThemostrelevantPPGstotheairportactivitiesare:

PPG1–Generalguidetothepreventionofwaterpollution

PPG2–Abovegroundoilstoragetanks

PPG3–Useanddesignofoilseparatorsinsurfacewaterdrainagesystems

PPG4–Disposalofsewagewherenomainsdrainageisavailable

PPG5–Worksin,nearorliabletoaffectwatercourses

PPG6–Workingatconstructionanddemolitionsites

PPG8–Safestorageanddisposalofusedoils

PPG21–Pollutionincidentresponseplanning

Local water quality management

ForGatwickAirport,theaffectedcontrolledwatersareCrawtersBrook,GatwickStreamandtheRiverMole.Therearenogroundwatersourcesthatclassify


ascontrolledwaterswhichareaffectedbytheGatwickAirportsite.However,therearelocal,isolatedpocketsofgroundwaterwhichmayprovidepathwaysforcontaminantstomigratewithinthesiteboundary,andtheeffectsofthesemightbeimportantwhenconsideringthemobilityoflandcontaminationsources.

TherearetwocategoriesofdrainagesystemattheAirport:

Surfacewaterdrains,includinglanddrainsandmostroaddrainsanddrainsfrommostcarparkingareasandexternalpavedareas.Theseleadtocontrolledwaters,i.e.alocalriverorstream.Theymaydischargedirectlytothecontrolledwater,ortheymaytravelthereviaanintermediatestepinvolvingabalancingpondorsoakaway.DischargestothecontrolledwatersmustbewithintheconstraintsofthedischargeconsentsheldbyGatwickAirportLimited.Inthecaseofdrainsthatleaddirectlytocontrolledwaterswithoutintermediatebalancing,wemustensurethatanypotentialpollutantsmustbeminimisedandmanagedsothattheycannotenterthecontrolledwater.

Foulsewerdrainswhichleadtoanisolatedseptictankortothesewagetreatmentworks.Foulsewerdrainsthatleadtoremotecesspitsneedtobeperiodicallyemptiedfordisposaloff-sitebyalicensedwastemanagementcontractor,andWasteDutyofCareRegulationsapply(seeWasteActionPlan).DischargestothosethatleadtosewagetreatmentworksmustbewithintheconstraintsofthetradeeffluentconsentsheldbyGatwickAirportLimitedoritstenants.

Discharges to controlled waters (surface water drainage) – discharge consents

TheEnvironmentAgencyissueconsentstoregulatethedischargeofeffluentintocontrolledwaters.Itistheresponsibilityofthecompanyholdingthedischargeconsenttomakesurethateffluenttype,concentrationandvolumeiswithinthelimitsofthedischargeconsentatalltimes,andthattheycanprovideevidenceofcompliance.Theseconcentrationsandtotalvolumesofpollutantsmaydependontheflowconditions(e.g.heightofriverflow)ofthecontrolledwaterthattheyenter.

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Discharges to foul sewers – trade effluent consents

Alldischargestofoulsewer(withtheexceptionofdischargesfromterminalbuildings’toilets,hotelsandairfieldsanitationblocks,allofwhichclassifyasdomestic-qualitysewage)requireatradeeffluentconsent,whichisagreedwiththelocalsewerageprovider(ThamesWater).Anapplicationforthismustbemadetothesewerageundertaker.Itistheresponsibilityofthecompanythatcarriesouttheactivity–andthusproducestheeffluent–toensurethattheyobtainatradeeffluentconsentthatpermitsthemtodischargethetypes,concentrationsandvolumesofeffluentinvolved.Theyshouldalsomonitortheireffluentstreamstoverifythatwhattheyareactuallyproducingremainswithintheconstraintsoftype,concentrationandvolumeasstatedwithinthetradeeffluentconsent.

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Development of the action plan | London Gatwick Airport: Water Quality Management Action Plan

03Development of the action plan

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03 Development of the action plan

Thediagrambelowdescribeshowwaterandvariousliquidscometoarriveinourwaterqualitymanagementsystem,whichactivitiesandroutesgiverisetothemandtheroutesformanagementoftheeffluentswhicharise.

Fig 1. Water drainage map

Rainfall

Surface water Foul water

De-icing Splillage Aircraft washing

Polluted water

Remove oil and silt

Flow measurement

Infrastructure including interceptors, drainage systems, balancing ponds/sampling monitoring equipment including flow measurement

Flow measurement

Fire training foam

Balance flows

Monitor level of pollution

Lightly polluted

Environment Agency Compliance

Controlled water River Mole / Gatwick

Stream

Thames Water Treatment Works

Legal Obligation

Thames Water Compliance

Highly polluted

Stand cleaning wash water

Liquid waste from compactors

Remove oil and silt

Airport sewage

Key

Infrastructureandprocess

Compliance

Watereffluentgeneration

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03 Development of the action plan

De-icer application

De-icerandanti-icercompoundsareappliedtothesurfacesofaircraftandtohard-standingareasbothlandsideandairsideduringperiodswheretheformationoficewouldcreatehazardousconditions.Thecontainmentandmanagementoftheeffluentfromthesede-icerapplicationactivitiesisimportantasde-icerandanti-icercompoundstendtohaveahighbiologicaloxygendemand(BOD)astheybiodegrade.Itisimportantthat:

•theBODloadoftheoperationsisminimised,bycarefulchoiceofpermittedde-icingcompoundsandefficientapplicationofde-iceronlywhereitisrequired;

•whereverpossiblethede-icereffluentisusefullyrecovered;

•theremainingeffluentisfullycontainedandtreatedinaccordancewithdischargeconsents.

Others

Allworkshopactivitiesandotherindustrial/commercialactivitiesnotlistedaboverequiredrainagetofoulsewerandacorrespondingtradeeffluentconsent.

Rainfall and surface water run-off

Giventhelargeareasofhard-standingatGatwickAirport,therateofrun-offismagnifiedduringperiodsofrainfall.Anumberofbalancingpondsarepresentwhichallowtheratesofdischargeflowtocontrolledwaterstobereducedaswellasprovidingthespaceinwhichtocontrolthequalityofthisdischargewater.Inallcases,thedischargeconsentsfordischargefromthebalancingpondsstipulatethattheeffluentshouldbe’non-injurioustofish’.Balancingpondsdoprovideafloodmitigationfunction.

Aircraft washing

Cadmiumispresentonvariousaircraftcomponentsandsmallquantitiesarefoundinwastewasterduringwashingactivities.Aircraftwashingcurrentlyoccurson-siteatthe170sstands;wenowtreatcadmiumdischargesinthewastewateron-site.Acomprehensivesuiteofsamplinghasbeenputinplacetogainaccuratereadingsofcadmiumlevelsinwastewaterandtounderstandunderwhatconditionsofaircraftwashingtheelevatedlevelsofcadmiumoccur.

Spillages

Thelargestpotentialforspillagesisoffuel,bothaviationfuelontheairfieldandgroundvehiclefuelatvariousbulkstoragesiteslandsideandairside.Protectionsystemsinplacetopreventspillagesincludespillagebundsaroundthemaintanks,pressure-tripsystemsonthedistributionmains,inspectionsofthefuelhydrantwellsandfaststopvalvesonthehydrants.Themostcommonsourceofaviationfuelspillagesisventingfromtheaircraftfueltanks,whenarapidthermalexpansionofthefuelinthewingtanksduetoachangeinambientsolarconditionsleadstoaventingfromthewingtanks.

Stand cleaning

Aircraftstandsarecleanedregularlyusingdetergentinordertoremoveoildepositsandanyloosedebriswhichwouldotherwisecausedamagetoaircraft.

Waste management

CompactorsaresituatedatlandsidelocationsintheSouthandNorthTerminals,andairsideintheSouthTerminal.Therearetwogeneralwastecompactorsontheairfield,attheCentralRecyclingPoint(CRP)andattheNorthTerminalSanitationBlock.Wherecompactorsaresited,thedrainagefromtheseareasshouldbetofoulsewerunderatradeeffluentconsent.

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The actions | London Gatwick Airport: Water Quality Management Action Plan

04The actions

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04 The actions

Thisactionplancoversthoseactivitestobecompletedoverthenext2-3years.Theactionshavebeenidentifiedthroughaseriesofinternalscopingexercisesandconsultationwithourkeyexternalstakeholders.

Table of actions

Year

2009 2010 2011

Detail of Action

Wewilltrackprogressagainstourannualtargetsforwaterconsumptiononamonthlybasisviaourgovernancegroupswithintheairport.

WewillworkwithourairportbusinesspartnerswhooperateatGatwickAirporttoreducetheirimpactontheenvironment–waterqualitybeinganimportanttopic.

Wewillimplementaseriesofworksanddevelopprotocols(whichconsidertherecommendationsoftheStrategicFloodRiskAssessment)toreducefloodvulnerabilitytoGatwickandourneighbouringBoroughs.

Wewillundertakeaseriesofmeasurestominimisepollutantloadsofeffluentstreamsthroughimprovingprocessefficiency.

Wewillconductenvironmentalassessmentsondevelopmentprojectstoensurewaterqualityissuesareconsideredandaddressedwhereapplicable.

Wewilldevelopanaccuratemapofdrainageroutesandinterceptors,andproduceplansfordrainagemaintenance.

Wewillassessthesurfacewaterattenuationcurrentlyexistingontheairportandfeedthefindingsintoourfloodresilienceandmanagementwork.

Wewilldevelopaseriesofrobustproceduresforspillresponseincludingtrainingneedsandspillreporting.

Wewillreview,upgradeandproducecontingencyplansforfloodresponseandcontaminationoffoulandsurfacewatersystems.

Action completed or commissioned in 2008

Actions 2009 – 2011

OngoingCompletebyyearend

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04 The actions

Detail of Action

Wewilldevelopandmaintainasitewideoilandchemicalstorageregisterandannuallyupdate.

Wewilldevelopandmaintainade-icingcodeofpracticeguide.

WewilldevelopaFloodResilienceStrategyfortheairport,detailingtherequiredlevelsoffloodresilienceforeachareaoftheairportandidentifyingtheprotectionmeasuresrequiredforspecificbusiness-criticalassets.

Wewilldevelopguidancefordevelopmentmanagersondesigningforfloodresilienceandsitesurfacewaterattenuationinbothmajorprojectsandthoseprojectswhichdonotrequireplanningconsent(asapplicable).

Wewillimplementaplantoidentify,recordandmaintainwaterqualitycriticalassets.

Actions 2009 – 2011

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Implementing the action plan | London Gatwick Airport: Water Quality Management Action Plan

05Implementing the action plan

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Implementing the action plan | London Gatwick Airport: Water Quality Management Action Plan

05 Implementing the action plan

Itisimportanttoensurethattheactionplaniseffectiveandthatitremainsa“live”document,responsivetothedynamicairportenvironmentandchanginglegislation.

Forthisreason,thisactionplanwillbereviewedinternallyonatleastathreeyearbasis.Thereviewwillinvolveengagementwiththefollowingstakeholdergroups:

•CrawleyBoroughCouncil

•TheEnvironmentAgency

•Thelocalseweragecompany(currentlyThamesWater)

Theaimofthereviewwillbetocriticallyassesstheresidualenvironmentalrisktowaterqualityinalloftheareasoftheriskmatrix.Itwillalsobetoreviewthescopeoflegislativerequirementsandaddanynewrequirements,andassociatedactions,totheactionplan.

ActionPlanswillbeauditedassetoutintheActionPlanningobligation.

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Glossary | London Gatwick Airport: Water Quality Management Action Plan

06Glossary

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Glossary | London Gatwick Airport: Water Quality Management Action Plan

06 Glossary

EC EuropeanCommission

WFD WaterFrameworkDirective

PPS PlanningPolicyStatement

RPG RegionalPlanningGuidance

RSS RegionalSpacialStrategy

NRM NationalResourceManagement

LPA LocalPlanningAuthority

DEFRA DepartmentforEnvironment,FoodandRuralAffairs

PPG PollutionPreventionGuidance

CRP Centralrecyclingpoint

BOD BiologicalOxygenDemand

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