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COMMISSION OFTHEEUROPEAN COMMUNITIES
COM(78)3final •
Brussels,24January1978
Proposaifora
CouncilDirective
ontheprotectionofgroundwateragainstpollutioncaused
bycertaindangeroussubstances
(submittedtotheCouncilbytheCommission)
/<-•-' .A/> •• ,A■
T."A
COM(78)3final

EXPLANATORY MEMORANDUM
1.Introduction
Groundwaterconstitutes animportantpartoftheCommunity'swaterresources.
Althoughoftenmoredifficulttoexploitthansurfacewater,groundwater
doeshaveanimportantregulatingcapacity,especiallyinperiodsoflow
waterordrought.Furthermore ,thefiltrationcapacityofthesoilgives
aquiferspartialprotectionagainstcertainformsofpollutionandimparts
aqualitytothewaterwhichmakesitsuitableforthehighest–gradeuses.
Yetgroundwaterpollutionisinsidiousandonlybecomesapparentwhenit
reachesanabstraction pointjfurthermore ,itisstilldifficultinthe
majorityofcasestoascertaintheprogression andeffectsofthispollution.
Itisforallthesereasonsandtosafeguardthisvitallyimportantresource
thattheActionProgrammesoftheEuropeanCommunitiesontheEnvironment*
setouttot
"protectthequalityofgroundwater anditsabstractionpointsagainst
pollutionandagainstamyecologically unacceptable deterioration inthe
groundwater system".TheprogrammesalsorequiretheCommissionto
implementthenecessarymeasuresasprovided ,forunderDirective76/464/EEC
andinparticular "tosubmitaproposalforaDirectiveongroundwater
proteotion".
ThereisgrowingevidenceintheMemberStatesoftheCommunityofground­
waterpollutioncausedprincipally bytoxicsubstances,hydrocarbons and
nitrates.Thisproduceschemical,physicalandbiologicalchangeinthe
waterwiththeresultthattheusestowhichitcanbeputaregradually
limited.
Groundwaterpollutioninvolvestwobasicmechanisms.Firstly,thepollutant
seepsverticallybetweenthesourceandtheaquifer,oftenthroughanon–
saturatedinterveninglayer.Itthenpercolateshorizontally throughthe– •.•/•••
10JNoC112of20December1973
OJNoC139of13June1977

aquifer.Thisexplainswhygroundwaterpollutionisgenerallyaccompanied
notonlybypollutionofthesoilandtherockabovetheaquifer,especially
inthecaseoffreeaquifers,butbypollutionofthereservoirrook.
Groundwaterpollutiondiffersfromsurfacewaterpollutioninvariousrespects
Thefollowingsalientfactorsshouldbenotedt
–asubstancedischarged ontothegroundislikely,beforereachingthe
groundwater ,tobefixed,modifiedordecomposedowingtovariousphenomena
suchassolubilization ,insolubilization andchangesincomposition ;
–changesinthecomposition ofsubstanceswhichhaveenteredgroundwater
aregenerallyslowerthaninsurfacewaters;
–substancesingroundwater canbetransported byitoververylongdistances
andtheirresidencetimemayalsobeverylong.
Theseremarksillustratetheparticulargravityofgroundwater pollution,
especiallywheredangeroussubstanoesaredischarged *
2.Aim
On4May1976theCourifciloftheEuropeanCommunitiesadoptedaDirective
onpollutioncausedbycertaindangeroussubstancesdischargedintheaquatic
environment oftheCommunity.ThisDirectiveappliestoinlandsurface
water,territorialwaters,internalcoastalwatersandgroundwater.
Article4oftheDirectiveof4May1976providesforaspeoificDirective
ongroundwater tobedrawnupinviewofthespecialfeaturesofsuch
water.Atits394thSessionon3and4May1976theCounoilrequestedthat
aCommissionproposalongroundwater besubmittedassoonaspossible.
TheaimofthisproposalforaDirectiveistodefinetheappropriate means
ofpreventing,reducingoreliminating groundwaterpollutioncausedbythe
dischargeofthedangeroussubstancesinLists1'andIIannexedtothe
proposalforaDirective *

-3-
3.Lawsandregulations inforceintheMemberStates
ItisclearfromareviewofthelegalsituationintheMemberStatesthat
thereisamultiplicity andgreatdiversityofprovisionstoprotectground­
waterfrompollution *
Belgium
TheLawof26March1971on"theprotectionofgroundwaterestablishesa
generalcontrolonthedisoharge,dumpingordepositofsubstanceslikely
tocontaminate groundwater.Accordingly ,itprovidesfortheprohibition ,
regulationorauthorization ofthetransport,storage,dumping,discharge,
burial,disposal,tippingandspreadingofthesesubstancesinabstraction
andproteotionzonesand,outsidethesezones,theregulationorauthorisation
ofdirectorindirecttippingordumpingofthesesubstancesonandinthe
ground.
Denmark
Article11ofLawNo372of13June1973ontheproteotionoftheenvironment
stipulatesthatsurfacewater,drainagewater,wastewaterandother
effluentslikelytopollutethegroundwater maynot,withoutauthorization ,
bedischargedontothelandorintroducedintothesubsoilviasumpsor
otherwells,boreholes,drainageorotherinstallations .
Therearespecialprovisionsgoverningthesitingandoperationofcertain
installations ,e.g,forunderground hydrocarbons storageanddomestic
effluentrelease.
\
France
TheLawof16December19"4introducedthegeneralprincipleof
authorization forthedischargeofwasteslikelytocontaminate
environment,inparticulargroundwater.praor
theaquatio
•/•••

Withthemorespecificaimofprotectinggroundwater ftheLawprovidesfora
generalbanonalldischargeordisposalofwastewaterorwasteproductsof
anykindintodisusedwells,"boreholesorcatchmenttunnels.
Inimplementation ofthisLawtheDecreeof23February1973laysdownthe
I
authorization procedurewithspecialarrangements forshallowaquifers
(lessthan10m)andthoseoocurringatagreaterdepth(over10m).This
Decreeissupplemented byOrdersof13May1975layingdownthetechnical .
prerequisites fortipping,discharge,disposalanddumpingauthorizations .
Lastly,theOrderof10August1976laysdownconditionsforthestudyprior
toapplicationforauthorization toreleaseliquidradioactiveeffluentfrom
nuclearinstallations .
Ireland
The1977LocalGovernment(WaterPollution)Actintroducesasystemfor
authorizating thereleaseofdomesticandindustrialeffluentintowater.
Theauthorization issubjecttocertainconditionswhich,forexample,take
accountofthenatureofsubstanoesreleased,thecharacteristics ofthe
reoeivingmedium,amonitoringprocedureandaooident–preventionmeasures.
Italy
LawNo319of10May1976°ntheprotectionofwateragainstpollution •
establishesgeneraltechnicalstandardsgoverningauthorization ofthe
dumpingorreleaseofwastesonorintheground,butexcludesdischarges
likelytocausegroundwater contamination .
Luxembourg
TheLawof16May1929onthecleansing,maintenance andimprovementof
watercourses stipulatesthatwaste-waterpurification bythesoilcanbe
carriedoutonlyonconditionthatgroundwater useisnotcompromised and
thatthereisnodangertohealth.UndertheLawof9JanuaryI96Ionthe
exploitation ofgroundwaterresouroes &landownerwithahollowonhis

-6-
UnitedKincdora
TheControlofPollutionActI974makesallwastedisposalsubjecttoan
authorization whichmaybegrantedonlyifthedischargepresentsno
hazardtohealthriskofwaterpollution.
Specialprovisionsprovidethatauthorizations arenecessaryforinstallations
engagedinthedrillingfor,refininingandstorageofhydrocarbons,forthe
dumpingofresidues,processesinvolvingthedisohargeoforganicwastes,
forthebuildingofcemeteriesandforworkslikelytocauseerosion.
ItisalsoforbiddentodisohargeviaboreholeB,pipesorintowellsused
forthesupplyofdrinkingwater.
InviewofthedisparitybetweenlegalprovisionsintheMemberStates,
whichislikelytoproduceadistortionoftheconditionsofcompetition
andhencehaveadirecteffectonthefunctioningoftheCommonMarket,
Article100oftheTreatyshouldbeinvoked.
ConsideringalsothattheTreatyhasnotprovidedforallthenecessary
powerstoenablemeasurestobetakentosafeguardandimprovethequality
ofgroundwater ,Article235of"theTreatyshouldbeinvoked.
ItshouldalsobeborneinmindthatArticle4of"kh®CouncilDirective
of4May1976onpollutioncausedbycertaindangeroussubstancesdischarg­
edintotheaquaticenvironmentoftheCommunityprovidesfortheimplement­
ationofaseparateDirectiveongroundwater.
UnderArticles100and235oftheTreatytheopinionoftheEuropean
ParliamentandtheEconomicandSocialCommitteeisrequired.
4.CommentsontheproposalforaDirective
4*1•GeneralCommenta
TheaimofthisproposalforaDirectiveistopreserveexploitabxeground–
waterresources,i.e.waterinthesaturationzone."Saturationzone"means

5
land maynotdump substances onhisproperty which maypollute groundwater
streams .Furthermore ,ageneral provision oftheLawof29July 1965 on
the conservation ofnature and natural resources makes the establishment
oftips subject toauthorization ;this iBrefused ifthetipping site
presents awater-conservation hazard .
TheLawof27June 1906 also introduces theconcept ofprotection zones
within which itisforbidden tospread human fertilizer orother substances
likely tocontaminate thewater .
Fédéral Republic ofQermany
Under theLawof27July 1957 water management (Water Resources Law–
WHO),aslast amended on16October 1976 ,authorization fortherelease
ofsubstances into groundwater maybeissued only ifthere isnonreason
tosuspect that thewater maybepolluted oritsproperties maybe
impaired inanyother way .
Netherlands
t
There arenonational laws intheNetherlands specifically ooncerned with
theecological protection ofthe soil andgroundwater .Most provincial
authorities have nevertheless taken measures ofthis kind under thepowers
conferred upon them bythelawontheorganization oftheprovinces with
respect tothecontrol ofareas netcovered bythelaw .
1
Specific laws regulate thedischarge ofvarious substances which plight
have aharmful effect ongroundwater .These are t"Hinderwet "(Lawon
nuisances ,19^52),"Bestri jdingsmiddelenwet "(Lawonpesticides ,1962),
"WetGevaarlijke stoffen "(Lawondangerous substances ,1965 )*"Wetopde
lijkbezorging "(Lawonburials ,1896).
Inaddition ,certain activities which threaten water quality arecontrolled
bytheActonchemical waste andw&ete oilofOctober 1973 which prohibits
therelease ofdangerous chemicals inwatercourses ,with exceptions subject
toauthorization . ,
•••/•••

thatportionoftheaquiferwhereallvoidBarefilledwithwater.This
excludeswatersintheaerationzonewhioheitherrechargethesaturation
zoneorformpartofthewatersoftheplantbiosphere.
ThescopeofthisDirectivedoesnotextendtowastesarisingfromdomestic
effluentfromindividualdwellings,fromagriculturalactivities,wastes
producedbythetitaniumdioxideindustryandwastescontainingradioactive
substances :
–thefirstcategoryrelatesinparticulartodwellingswhicharenot
connectedtoapublicseweragesystem}theriskofpollutinggroundwater
isfairlylowandcontrolpresentspracticalproblems;
–inthesecondcategorythereisariskofpollutionfromindirectdis­
charge}however,thecomplexityoftheproblemdemandsaspecialstudy
–nowbeingcarriedoutbytheCommission–whichshouldleadto
Communitydirectives }
–on18July1975"theCommissionpresentedtotheCouncilaproposalfora
Directiveonwastefromthetitaniumdioxideindustry(OJC222of
29September1975)*Itlaysdownanauthorization procedureanda
specialsystemforcontrollingtheinjectionofsuchwasteintothe
groundwater }
–radioactivewastesareexcludedbecausetheyarealreadycoveredbythe
CouncilDirectiveof1June1976layingdowntherevisedbasicsafety
standardsforthehealthprotectionofthegeneralpublicandworkers
againstthedangersofionizingradiation(OJL187of12July1976)*
Therearetwomethodsofmakingdischargesintogroundwater ,eithers
i)directlyintothesaturationzone(e.g.,sumps),inwhichcasethe
pollutingcapacityofthedischargedsubstancesisunaffected ;
ii)indirectlyafterseepagethroughtheaerationzone.Intheprocess,the
dischargedsubstancesaresubjecttophysioo-chemical actionand,in

somecases,biologicalactionwhichmayeitherarrestthemorreduce
theirpollutingcapacity.Alltogethertheseactions ,constitutethe
purifyingcapacityoftheground*
4.1.1.DirectdischargeofsubstancesinListI
ThedirectdischargeofsubstancesinListIisgenerallybannedonaccount
oftheirproperties,inparticularacutetoxioityandpersistence.Some
exceptionstothisrulehavebeenconsidered however,andarebasedon
thefollowingfactors:
–theconceptofunusablewater,whichwasintroducedbytheDirectiveof
4May1976,hasbeentakenoverbutclarifiedtoallowidentification of
aquiferswhoBesolefunctionwouldbetoreoeivepollutingsubstances
difficulttodisposeofbyothermeans;
–thehandlingofwaterpumpedoutofminesandquarries,ofwaterused
forgeothermalpurposesandwaterpumpedinthecourseofcertaincivil
engineering worksinnowayaltersthequalityofBuohwater)
–certaingroundresourcesoannotbeexploitedorusedtoeconomicadvantage
withoutwaterinjection;theimportanceofsuchoperationsjustifiesa
detailedstudyofthepollutionrisks)
–inordertodeterminethepropertiesofthegrounditmaybenecessary
toinjectcertainsubstances te.g.groundwatervelocitycanbemeasured
byradioactivetracers.Thepracticalandscientificimportanceofsuch
experimentsjustifiesadetailedstudyoftherisksofpollution:
\
–collectedrainwatermayconstituteanimportantresource;inaddition,
itsqualityiseasytomonitor*

4.1#2«IndirectdischargesofBubstanceBinListIanddischargesoft
substancesinListII
Thepurifyingcapacityofthesoilenablestheauthorization systemtobe
appliedtotheindirectdischargeofsubstancesonListI.Directand
indirectdischargesofsubstancesinListIIarealsosubjecttoauthorization .
Aspartoftheauthorization procedureaninvestigation mustalwaysbemade
ofthehydrogeological conditionsobtaininginthezoneinquestion.
Inaddition,theapplicationforauthorization (issuedbythecompetent
authority)must,inthecaseofdirectandindirectdischargesofsubstances
inListIandthedireotdischargeofsubstancesinListII,contain
informationabouttheplaceandmethodofdisposal,theessentialprecautions
tobetakenduringtheoperationand.,whereappropriate ,themaximumpermiss­
ibleconcentration andquantityofasubstanceinthedischarge.
Thediagramgivesasimplifiedviewoftheproposedsystemofbansand
authorizations .

-10-
ExceptionsDischarges arising from domestic effluent from Isolated dwellings
Discharges arising from normal agricultural activities
Discharges arising from thetitanium dioxide industry
Discharges containing radioactive substances
LIST I
Direct
dischargé'
1LIST II
Prohibition
7/777Indirect
dischar^e
ExceptionsJouausable aquifers ^
'Freinjection into thel
-"^isame aquiferJ
£scientific workj
frain water ]Direct
discharge
Authorization
Articles 5and 6Indirect
discharge
*rrAuthorization
Article 5
/// //

-11-
4.2.Commenta ontheAnnex ,
Certain amendments have been proposed toList Iofdangerous substance 8as
setoutintheDirective of4May1976 toreflect more faithfully the
particular case ofgroundwater .
i)Mineral oils andhydrocarbons ofpetroleum origin
List IoftheDirective of4May1976 contains only "persistent "
substances .Itisproposed todrop this term ,asmany studies show
that allmineral oils andallhydrocarbons ofpetroleum origin are
liable topersist foralong time intheunderground environment .
ii)Persistent synthetic substances which mayfloat ,remain insuspension
orprecipitate andwhich may interfere with water use
These substances are unlil^.y tooccur ingroundwater ,their omission
from List Iisjustified .
%

ProposalforaCouncilDirectiveontheprotectionof
groundwateragainstpollutioncausedbycertain
dangeroussubstances
THECOUNCILOFTHEEUROPEANCOMMUNITIES ,
HavingregairdtotheTreatyestablishing theEuropeanEconomicCommunity,
andinparticularArticles100and235thereof,
HavingregardtotheproposalfromtheCommission,
HavingregardtotheopinionoftheEuropeanParliament,
HavingregardtotheopinionoftheEconomicandSocialCommittee,
Whereasthereisanurgentneedforactiontoprotectthegroundwater of
theCommunityfrompollution,particularly thatcausedbycertaintoxic,
persistentandbioaccumulable substances ;
»
WhereastheprogrammesofactionoftheEuropeanCommunities onthe
environmentof1973and1977*provideforanumberofmeasurestoprotect
groundwater fromcertainpollutants ;
WhereasArticle4ofCouncil"Directive74/464/EECof4May1976onpollution
causedbycertaindangeroussubstancesdischargedintotheaquaticenvironment
2oftheCommunityprovidesfortheimplementation ofaseparateDirectiveon
groundwater :
0JNoC112,
20JNoL129L20.12.1973,p.and0JNoC139»13.6.1977,P
18.5.1976,p.23

Whereasanydisparitybetweentheprovisionsonthedischargeofcertain
dangeroussubstancesintogroundwateralreadyapplicableorinpreparation
intheMemberStatesmaycreateunequalconditionsofcompetitionandthus
directlyaffectthefunctioningofthecommonmarket5whereasitisthere­
forenecessarytoapproximatelawsinthisfield,asprovidedforinArticle
100oftheTreaty;
«
Whereasitisnecessaryforthisapproximation oflawstobeaccompanied
byCommunityactioninthesphereofenvironmental protectionand
improvementoftheequalityoflife;whereascertainBpeoificprovisions
tothiseffectshouldthereforebelaiddown}whereasArticle235ofthe
Treatyshouldbeinvokedastherequisitepowershavenotbeenprovided
forbytheTreaty}
Whereassubstancesdischargedare,byvirtueofthepurifyingcapacityof
thesoilandsubsoil,subjectedtoprocessescapableofreducingtheir
pollutantcapacity;whereasadistinction shouldthereforebemadebetween
directandindirectdischargeintothegroundwater }
Whereas,inordertoensureeffeotiveprotectionofthegroundwaterofthe
Community,itisneoessarytoprohibitthedirectdischargeofthesubstances
enumeratedinListIandtomaketheindirectdischargeofthesubstances
onthisListandthedirectorindirectdischargeofthesubstancesonList
IIsubjecttopriorauthorization }
WhereasthefollowingshouldbeexcludedfromthescopeofthisDirective:
domesticeffluentfromisolateddwellings,onaccountofthelowriskof
pollutionandthedifficultyofcontrollingthedischargeofsucheffluent }
wastesarisingfromnormalagriculturalactivities }wastesgeneratedby
thetitaniumdioxideindustry,whichwillbethesubjectofspecial
Communityrules;radioactivesubstancesandwastes,sincetheyarealready
coveredbyCouncilDirective76/579/EECof1June1976layingdowntherevised
basiosafetystandardsforthehealthprotectionofthegeneralpublicand
workersagainstthedangersofionizingradiatioif•
OJNoLI87,..12.7.1976,p.l.•••/••*

Whereasexceptionsshouldbepermittedtoallowcertaindangeroussubstances
toberemovedfromtheecosystem,"discharge"ofwhichintoaquifersisolated
fromthebiosphereiseffectiveandecologically harmless;
Whereasitisnecessarytoprovideforotherexceptionstotheprohibition
onthedirectdischargeofsubstanoes onListIinviewofthescientific
andpracticalbenefitwhichcertaindischarges mayoffer,.,orbecausethey
donotaffectgroundwaterquality}
Whereasaninventoryoftheauthorizations grantedforthedischargeof
ListIsubstanoesintogroundwater shouldbedrawnupinorderthat
theiroriginmaybedetermined ;
WhereasMemberStatesshouldbeable,individually orjointly,totake
morestringentmeasuresthanthoseprovidedforunderthisDireotive;
Whereasitmaybenecessarytoreviseand,whererequired,supplement
ListsIandIIonthebasisofexperience,ifappropriate,bytransferring
certainsubstancesfromListIItoListI,

HASADOPTEDTHISDIRECTIVE :
Article1
1.ThepurposeofthisDirectiveiatoprevent,reduceoreliminateground­
waterpollutioncausedbysubstancesbelongingtothefamiliesandgroups
ofsubstancesenumeratedinListsIandIIintheAnnex,hereinafter
called"substancesinListsIorII",
2.ForthepurposesofthisDirective :
a)"groundwater"meansallwaterwhichisbelowthesurfaceoftheground
inthewatersaturationzoneandindirectcontactwiththeground;
b)"pollution"meansthedischargebyman,directlyorindirectly,of
substancesintothegroundwater ,theconsequences ofwhicharelikely
toendangerhumanhealth,watersupplies,livingresourcesorthe
aquaticecosystem,ortointerferewithotherlegitimateusesofthis
water;
c)"directdischarge"meanstheintroductionintothegroundwaterof
substancesListsIorIIwithoutpassagethroughtheground;
d)"indirectdischarge"meanstheintroduction intothegroundwaterof
substancesListsIorIIafterpassagethroughtheground.
Article2
ThisDirectiveBhallnotapplytothefollowingdischarges :
-domesticeffluentsfromisolateddwellings;
-dischargesarisingfromnormalagriculturalactivities ;

–dischargesofthetitaniumdioxideindustry;
–dischargescontainingradioactive substances.
*
Article3
1.TheMemberStatesshallprohibitalldirectdischargeofsubstancesin
ListI.
2.Notwithstanding theforegoingprovision,MemberStatesmay,underasystem
ofpriorauthorization ,provideforexceptionsinthecaseof:
a)dischargesintoaquiferswhichareisolatedfromthebiosphereand
unusableforanypurpose,especiallydomesticoragricultural ;
b)dischargesduetothere–injectionintothesameaquifersofwater
usedforgeothermalpurposes,ofwaterpumpedoutfromminesand
quarries,orwaterpumpedoutforcivilengineering works;
c)dischargesduetotheinjectionofwastewaterusedintheexploration
for,andworkingof,resourcescontainedinthegroundanddischarges
duetotheexploitation oftheseresources ;
d)dischargesduetotheinjectionofsubstancesduringscientificWork;
e)dischargesofcollectedrainwater.
Article4
TheMemberStatesshallmakeallindirectdischargesofsubstanoesinListI
andalldirectandindirectdischargesforsubstancesinListIIsubjectto
priorauthorization .

Article5
Theauthorizations referredtoinArticles .3(2)and4maybegranted
onlyafterconsideration ofthehydrogeologicalconditionsofthearea
concernedandonconditionthatanysignificantriskofpollutionis
eliminated.Theauthorizations maybeamendedorwithdrawn.
Article6
1.Theauthorizations grantedforthedischargesreferredtoinArticle3(2)
andfortheindirectdischargesofsubstancesinListIandthedirect
dischargesofsubstancesinListIIshallbesubjecttosupplementazy
requirements *
2.Theauthorizations shallspecifyinparticular 1
-placeofdischarge,
–methodofdischarge.
–essentialprecautionsineachindividualcase,takingparticularaccount
ofthenatureandconcentration ofthesubstances containedinthe
dischargeandthecharacteristics ofthereceiving'environment *
3*Inaddition,theauthorizations shall,wherenecessaryfortheimplement–
ationofthisDirective,laydownt
«
–themaximumpermissibleconcentration ofasubstanceinthedischarges,
–themaximumpermissiblequantityofasubstanceinthedischargesover
oneormorespecifiedperiodsoftime*
Article7
1Ifthedischargerstatesthatheisunabletocomplywiththeconditions
laiddowninanauthorization ,orifthisfactisevidenttothe
competentauthority,authorization shallberefused*

-7-
2.Shouldtheconditionslaiddowninanauthorization notbemet,the
competentauthorityshalltakeallappropriatestepstoensurethatthe
conditionsarefulfilledand,ifnecessary,withdrawtheauthorization .
Article8
AsregardsdirectorindirectdischargesofthesubstancesinListsIandII
occurringatthetimeofthenotification ofthisDirective,theMember
Statesmaystipulateaperiodnotexceedingthreeyearsafterentryinto
forceoftheprovisionsreferredtoinArticle14(l)»ontheexpiryof
whichthedischargesinquestionmustcomplywiththisDirective.
Article9
TheMemberStatesshallkeepaninventoryofauthorizations asreferredto
inArticles3(2)and4grantedinrespectofdirectorindirect
dischargescontainingsubstancesinListI.
Article10
,'•4
l»Porthepurposes .ofthisDirective,theMemberStatesshallsupplythe
Commission,atitsrequest,tobemadeseparatelyforeachcase,with
allthenecessaryinformation ,andinparticular :
a)thehydrogeological conditionsreferredtoinArticle5i
b)detailsoftheauthorizations granted)
c)resultsofthemonitoringandinspectionoperationscarriedout}
d)resultsoftheinventoryprovidedforinArticle
/

2.InformationacquiredpursuanttothisArticleshallbeusedonlyforthe
purposeforwhichitwaBrequested *
3.TheCommissionandthecompetentauthoritiesoftheMemberStates,their
officialsandotheremployeesshallnotdiscloseinformationacquired
bythemunderthisDirectiveandofakindcoveredbytheobligationof
professional secrecy#
4.Theprovisionsofparagraphs 2and3ofthisArticleshallnotprevent
publicationofgeneralinformationorsurveysnotcontainingdatarelating
toparticularundertakings orassociations ofundertakings.
Article11
TheapplicationofthemeasurestakenpursuanttothisDirectivemayonno
accountbepermittedtoincrease,eitherdireotlyorindirectly,thepollution
ofgroundwater *
Article12
Whereappropriate ,MemberStatesmay,individually orjointly,take
morestringentmeasuresthanthoseprovidedforunderthisDirective.
Article13
TheCouncil,fetingonaproposalfromtheCommission,shallreviseand,
wherenecessary,supplementListsIandIIonthebasisofexperience,if
appropriate bytransferring certainsubstaaoesfromListHtoListI.
Article14
1.TheMemberStatesshall,withintwoyearsofthedateofnotification of
thisDirective,bringintoforcethelaws,regulationsandadministrative

provisionsnecessarytocomplytherewithandshallimmediately inform
theCommission thereof.
2.TheMemberStatesshallcommunicate totheCommission thetextofthemain
provisionsofnationallawwhichtheyadoptinthesectorcoveredbythis
Directive.
3.Oncethemeasuresreferredtoinparagraph 1ofthisArticlehave"been
implementedbyaMemberState,theprovisionsofDirective76/464/EEC
relativetogroundwatershallnolongerapply.
Article15
ThisDirectiveisaddressedtotheMemberStates.
DoneatBrussels.
FortheCouncil
ThePrésident

-10-
ANNEX
ListIoffamiliesandgroupsofsubstances
ListIcontainstheindividualsubstanceswhichbelongtothefamilies
andgroupsofsubstancesenumeratedbelow?withtheexceptionofthose
whicharebiologically harmlessorwhicharerapidlyconverted ,into
substanceswhicharebiologically harmlesst
(
1.organohalogen compoundsandsubstanceswhichmayformsuchcompounds .
intheaquaticenvironment }
2.organophosphorous compounds;
3.organatincompoundss
4*substanceswhiohpossesscarcinogenic propertiesinorviatheaquatic
environment^:
5.mercuryanditscompoundsj
6*cadmiumand.itscompounds;
!V
7.mineraloilsandhydrooarbons ofpetroleumorigin*
1
WherecertainsubstancesinListIIarecarcinogenic ,theyare
included ,incategory4ofthislist*

-11-
ListIIoffamiliesandcroupsofsubstances
ListIIcontainstheindividualsubstanoesandthecategoriesofsubstances
belongingtothefamiliesandgroupsofsubstanceslistedbelow*
1.Thefollowingmetalloidsandmetalsandtheircompounds :
1.zinc
2.copper
3.nickel
4»chromium
5.lead6.selenium
7.arsenic
8.antimony
9.molybdenum
10.titanium11•tin
12•barium
13.beryllium
14.boron
15.uranium16.vanadium
17•cobalt
18.thallium
19*tellurium
20.silver
2.Biocidesandtheirderivatives notappearinginListI.
3.Substanceswhichhaveadeleteriouseffectonthetasteand/orodourof
groundwater ,andcompoundsliabletocausetheformationofsuchsubs­
tancesinwater.
4*Toxicorpersistentorganicoompoundsofsilicon,andsubstanceswhichmay
causetheformationofsuchcompoundsinwater,excludingthosewhichare
biologically harmlessorarerapidlyconvertedinwaterintoharmless
substances. v'
1
5.Inorganiccompoundsofphosphorusandelementalphosphorus.
6.Cyanides
Fluorides
7.Substanceswhichhaveanadverseeffectontheoaygenbalance,
particularly 1
ammoma
nitrites