ARCHIVES HISTORIQUES
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DOCUMENTS "COM"
COM(76)570
Vol.1976/0174

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COMMISSION OFTHEEUROPEAN COMMUNITIES
COM(76)570 final.
Brussels ,3November 1976*
PROPOSAL FORACOUNCIL DIRECTIVE
relating -tothequalityrequirements forwaters
favourable toshellfish growth
(presented bytheCommission totheCouncil)
C0M(76)570final.

EW157/76-E
SOMSWOT
Theaimofthefollowing proposalforadirective istolaydownthe
qualityrequirements forwatersfavourable toshellfish growth.It
isbasedcntheprinciples outlinedintheprogramme ofenvironmental
actionoftheEuropean CoiMSunities adoptedbytheCouncilon
22November 1973(OJNoC112,1973)whichdefinesthequality
objectives forwaterandsear-water inparticular .
Inordertoattainthisobjective theproposalforadirective :
–fixesthevaluescftheparameters whichcharacterize the
qualityrequirements ofwaters -favourable toshellfish growth;•_
–laysdovmtheminimumsampling frequency forthewaterunder
consideration ;
–specifies thereference methodscfanalysistobeused.

! -2- jEMV/157/76–E
I.EXPLANATORY MEMQRA1T!JJM
Introduction
Allthechanges which maniscurrently making inthemarine environment
.1-;tenJ ,despite acertain ability tocontrol this environment ,tomodify
its characteristics tosuch anextent that thenatural balance cculd
,be-seriocs lydist JirbecL fxxxia-considerable period .
Theproblem isparticularly acute asregards coastal waters andestuary
areas where theeffects ofpollutants canbemore harmful because ofthe
ecological fragility ofthese areas «
Inthese waters thenatural ly«»ocu rring beds ofshellfish orthe
shellfish –farming areas (oysters ,mussels ,clams ,cockles ,3callops ,
periwinkles etc.)..arevery extensive andgenerally exploited forhuman
consumption .
Inorder toprevent andcombat water pollution ,theProgramme of
Environmental Action oftheEuropean Communities (l)specifies that the
Community programme must .define thequality objectives andmore Yv.o -'-*.
particularly establish aseries ofreference parameters endnumerical
values relating tothevarious uses andfunctions ofthewater andin
particular ofwater favourable toshellfish growth .
2.AEl
Thepurpose ofdefining quality objectives forwater favourable to
shellfish growth ,which isthesubject ofthis directive ,istoencourage
theincrease oftheshellfish population under suitable conditions .In
fixing theparameters andnumerical values whioh characterize thequality
ofthev;ater ,dueaccount wastaken asfaraspossible oftheeffects of
each parameter notonly onthesurvival ofthis population atthe
different stages ofitslife cycle butalso theeffects onitsgrowth and
reproduction ,andtheeffects onother constituent elements ofthe
aquatic ecosystem which maysupply itwith food .
(!)OJHoC112,20th December 1973 .

-3- EW/157/7
Thesequalityobjectives arenotincompatible withnational orCommunity ..
rulesconcerning consumerhealthprotection .
Thisproposal,however,dealswiththeproblems ofhumanc'orjsurapti onof
thoseshellfish solelyasregardsthechangesintheflavourofthe
shellfish meatbroughtaboutbycertainsubstanoee *
Forthepurposeofthisdirectives
(a)theterm"watersfavourable toshellfish growth"meansse,>-water or
areasthereofwheretherearenaturally^^oupringbeds and/crfarms
forraisingshellfish,inparticular oysters,mussels,clams,cockles,""
scallops,periwinkles .
(b)theterm"areasfavourable toshellfish growth"meansanyplaco
whorethewaterisfavourable toshellfish growth.
3•EXISTTK?CO?DTTIPITSATSIDROLES
Examination ofthelegalsituation intheMemberStatesrevealsthat
therearefewspecific lawsrelatingtoshellfish breeding .Allthe
MemberStates,however,haveadoptedgeneraltextsprotecting sea-water
againstdirectorindirect'discharged ofpollutants' .Indoing'this,
theMemberStates -havesofarpreferred asystemofrulesconcerning '
thedischarge ofpollutants ratherthanthefixingofquality
objectives
IntheFederalRepublic ofGermany,thegenerallawconcerning thepro­
tectionofsurfacewaters(Wasserhauekaltsgesetz 27-7-1957)also
appliestocoastalxvaters;itprovidesthatsubstances canbedischarged
intocoastalWatersonlyifthey --arenon-polluting anddo;notcauseany
degradation ofthe-qualityofthewater, -»'V-
TheLandS<ihleswif?-Hclstein enactedaspeciallawprotecting thebreeding :
of.,itrussel£ (Schleswig-Holsteinische GesetzzumSchutzederMuschelfischerei
28August1953SVBL1953-SIii).. ... •:

EW157/76-E
InBelgium thelawof26March 1971 ontheprotection ofsurfacv waters
against pollution also applies tocoastal waters .Article 2prohibits
thedischarge ofanypolluting substance except inthecase ofauthorized
discharges ofwaste water .Article 5(Chapter 1)requires prior ,,
authorization for -anydischarge into coastal waters ,
InDenmark theproblem isregulated bythe1973 lawontheprotection of
theenvironment .Chapter 4ofthis lawapplies to-discharges inall
water ,including sea–water .Paragraph 17prohibits thedischarge of
polluting substances into water .
!Thelawrelating tofishing inmaritime waters (lawNo159ofMay1965 )
prohibits thedischarge ofwaste andchemical substances into sear-water
ifthesaid discharges canhave aharmful effect onfish life .
.... 'X
IqFrance thelawof1964 (No64*-l245 )relating tctheoontrol andthe
division ofwaters andtomeasures against thepollution thereof applies
todirect orindirect discharge flow ,dumping anddeposition ofmaterials
ofanykind which arebound tocause ortoincrease degradation ofthe .
waters ,whether surface orunderground waters orsea-water within the
limits oftheterritorial waters bymodifying their physical ,chemical ,
biological orbacteriological characteristics .
Certain specific texts concern theprotection ofseafishing . .
InIreland theproblem isregulated bytheFisheries (Consolidation )
Acts of1959 end1962 .Paragraph 172ofthe1959 lawprohibits the .
discharge ofanysubstance which hasa,harmful effect onfish .oronthe
quality ofwater favourable tofish-breeding .These laws also apply
tocoastal waters .Paragraph 253ofthe1959 lawprovides forthe
protection ofmolluscs andprohibits thedischarge ofanysubstance likely
toharm oysters ortheir habitats .Under section 282..thesame
prohibition applies toplaces where mussels andscallops arefound .

-5- EHV/'I57/76-B
InItalyArticle15(d)ofthegenerallawrelatingtomaritimefishing
(LawNo$62of14-7•19^5)prohibits theuseoftoxicsubstances which
couldkillfishand.otheraquaticorganisms orharmthebiological
resources ofmaritime waters.
Inharbourareas;allactivities causingpollution areprohibited and
controlled (R^golamento DPR15/2/1952No*328);theaimofthisbanis
toprotectthefishingareas.
IntheNetherlandsthe19^9lawonthepollution ofsurfacewater3
inoludes coastalwaters.Article 1ofthislawprohibits theunauthorized
discharge intowaterofwastespollutants ornoxioussubstances .
Authorisation isgrantedorrefusedinthelightofthelocalsituation
anditisnormally accompanied byconditions protecting fisnlife,tinder
thislawitispossibletoestablish qualitystandards forwater.Todate
suohstandards havenotbeenadopted.
IntheUnitedKingdomthelav;concerned istheSeaFisheries Regulation
Act1966.Article5(1)*(°)(d),providesfortheadoptionof
secondary legislation prohibiting thedischarge ofanysubstance likely
toharmmaritimefishingandfortheadoption ofregulations protecting
andencouraging thedevelopment ■of-alltypesofcrustaceans .
Inviewofthelegalsituation intheMemberStatesandsinostheTreaty
hasnotprovidedforthenecessary powerstoattaintheseobjectives
Articles 100and235shouldbeinvokedasthelegalbasis -fortheproposed
directive . ;•■■
TheOpinionoftheEuropean Parliament andoftheEconomic andSocial
Committee isrequiredinaccordance withtheprovisions oftheeeArticles.

-.6- ENV/157,'76-2
4,COMIIEM 'SONTHE |PREPARATION OFTEE)PROPOSED DIRECTIVE
4«1General Comments t ■
Inaccordance with theProgramme ofEnvironment elAction oftheEuropean
ConuLuaities theCommission convened agroup ofnational experts inorder
toassist itinpreparing thetechnical section ofthis proposed directive .
This group ,which metfive times ,provided information onthelegal
situation intheMember States .Thegroup advised theCommission onthe
drawing–up ofthelist ofparameters andthenumerical values toheapplied
atCommunity level andalso onthe .definitions .
4.2 Sccpe' " «
Theproposed directive concerns thequality requirements .forwaters
favourable toshellfish growth ,which ,"bydecision ofthecompetent
authorities ofeach Member State ,areorwill bedefined asTaeing inneedV
ofprotection toallow ofthedevelopment oftheshellfish population under
favourable conditions .
Theproposed directive isapplicable towaters favourable toshellfish growth
innatural orartifical basins where there arenaturally-occurring beds or
shelIfisl>-f arming areas .
4*3 Theparameters andtheir numerical values .
Thevalues fortheparameters given intheAnnex ,characterize waters
favourable toshellfish growth .
Although the .:parameters given intheAnnex tothis proposal were considered
separately ,theinteraction oftheir effects vri.th other characteristics of
thequality ofthewater hasbeen indicated andquantified incertain cases .
Thesynergic effects duetothesimultaneous presence ofvarious noxious
substances were nottaken account ofsystematically .

-7- EW157/76-3
Inthiscasethevaluesassigned totheparameters canbemodified ,
considerably inrelation tothevaluesindicated intheproposeddirective .
Certainnoxioussubstances canhavesublethal effectsevenatconsiderably
lowerlevelsthanthosewhichareknowtobedirectly harmful aThe
responsible authorities shouldtalcethisintoaccountandlaydownspecific
provisions intheseindividual cases.
Theparameters relating toradioactivity arenotgiveninthelist
considered intheproposeddirective .Theymustconformtotheprovisions
inforceintheMemberStates®
*
Thelistofparameters givenintheAnnexshouldnotbeconsidered as
exhaustive .Inthecaseofcertainpollutants theavailable datav;a3too
incomplete toallowofincluding figuresintheproposals .Consequently ,
thefactthatcertainparameters arenotlisteddoesnotmeanthatthey
arenotharmfultoshellfish .
As'wasalreadyindicated ,thevaluesgivenintheAnnextothisproposal
applysolelywheretheconcentration oftheothersubstances inwaters
favourable toshellfish growthisverylow.Forallthesereasonsthe
requirements setoutinArticle 7concerning thenox>-degradation ofgood
qualitywatermust,bestrictlyappliedwithout ,exception .
Thelettersusedtoindicatethevaluesassignedtotheparameters inthis
proposal hev8the-fellowingmeanings :.
IWhenthevalueassignedtoaparameter isgiveninthecolumnheaded
.bytheletterIitismandatory .MemberStatescannotfixvalues
belowthelevelindicated ;theycan,however,setvaluesabovethis
figure.

Thevalues ..assignedtotheparameters andshownincolumn Qare
indicative andshouldberegarded asguidelines .Whenavalueis
shown "bothincolumnIandcolumn G,theMemberStateshavethe
optionofsettingmorevaluesabovethelevelindicated ,basedonthe
Gvalue.Wheretheseguidelines areadoptedbytheMemberStates,
theywillbeamandatory character inthecountries i/hichadoptthem.
Forthopurposes ofthisDirective watersfavourable toshellfish
growthwillbeconsidered asconforming tothevaluesassignedtothe
parameters definedintheAnnex(withtheexception ofthevaluesset
forpH,temperature ,oxygen,salinityandbacteriological quality)
whentheyfulfilthefollowing conditions:'
«•inthecaseofparameters givenincolumnI,whenthevalues
obtained from95/°°fthesamplesexaminedarelessthanorequal
tothevaluesindicated inthiscolumn,
–Inthecaseofparameters givenincolumnG,whenthevalues
;obtainedfromSOfoofthesamplesexaminedarelessthanor.equal
tothevaluesindicated inthiscolumn.
/
Asregardsthe5°r10$ofthesampleswhichdonotcomply:
(a)thewatermustnotexhibitvaluesdeviating fromthelimitvalue
assignedtotheparameter inquestion bymorethan50exceptfor
theparameters temperature ,pH,oxygen,salinity andbacteriological
quality.
(b)Consecutive samplesofthewatertakenatastatistically
satisfactory frequency musthotdeviatefromthevaluesAssignedto
theparameters inquestion -.

-9- EEV/157/76-E
4.4Samnlin/randmathcdsofanalysa ,s
Thegreatestattention mustbepaidtothefrequentsamplingofwaters
favourable toshellfish growth *Sampling mustbecarriedoutatregular -
intervals andattheminimumfrequency setoutintheAnnex.
Thesampling methodsmustensurethereproducibility oftheconditions
underwhichthemeasurings aretaken.
Thedetermination ofthetemperature andofthecontentofhydrocarbons
mustbecarriedoutatthesampling pointinaccordance withthe
requirements ofArticle6.2.Inthecaseofotherdeterminations ,the
samplesmaybetransported tothelaboratory andexaminedthereasquickly
aspossible .
Thesamplesaretobetakenatplaceswherethedensityoftheshellfish
population ishighest,However,thechoiceofthesamplingpointswill
dependonthelocalsituation .Thereisnogeneralrulegoverning the
numberofsampling points.Inmanycasesthecapacity oftheexamining
laboratory willbearestricting factor.Inhigh-production andextensive
areasfavourable toshellfish growththedistance betweenthesampling
pointsshouldbeapproximately 5^0metresatmost.
Thereference analysis methodsfortheparameters underconsideration are
indicated intheAnnex.MemberStateshaveadoptedthenecessary measures
toensurethatlaboratories whichuseothermethodsprovetothe
Commission thattheresultsobtained areequivalent orcomparable tothose
givenintheAnnex.
4*5Inspection ofws^ersfavourable toshellfish growthandlocalconditions
».M I»I»I.W MIITIM*AMU A <IATUB
Generalinvestigation oftheambientconditions inwatersfavourable to
shellfish growthandoftheregionfallingwithin "theextremelimits
reached bythewaterinthecourseoftidalmovements shouldbecarriedout
scrupulously andrepeatedinordertodetermine thegeographical ,
hydrodynamicandtopographical data,thevolumeandnatureofallpolluting
andpotentially polluting discharges ,andthephenomena ofdilution ,
dispersion anddegradation ofthedischarges andtheireffectsasa
function ofthedistance fromtheareafavourable toshellfish growth.

-10- ENV/157/75-51
11!'
Theriskofaccidental pollution whichthesedischarges cculdcreateinthe
reference area,i.e.,thecomparable coastelareanearestthearea
favourable toshellfish growthmustalso "beassessed.

-11- E'!V/157/76-E
PROPOSAL FORACOUNCIL DIRECTIVE
relating tothequalityrequirements for
watersfavourable toshellfish growth
THECOUNCIL OFTHEEUROFt-AN COMMUNITY
HavingregardtotheTreatyestablishing theEuropean Ecoronic Conmunity
andinparticular Articles 100and235thereof ,,
Havingregardtotheproposal fromtheCommission,
HavingregardtotheOpinionoftheEuropean Parliament ,
HavingregardtotheOnini^noftheEco.-tcr.ic andSocialCommittee,
Whereastheprotection andimprovement ofthe.environment require
practical measures toprotectwateragainstpollution,including those
watersfavourable toshellfish growth;
Whereasitisnecessary ,fromtheecological andeconomicpointsofview
toprotecttheshellfish population fromtheharmfuleffectsofthe
discharge ofpullutants intosea-water ;
Whereastheprogramme ofactionoftheEuropean Communities onthe
encironment (1>providesthatqualityobjectives aretobejointlydrawn
upfixingthevariousrequirements whichanenvironment mustmeet,andin
particular ,dfiningthequalityobjectives forsea-water ;
(1)OJNoC112,20.12.1973 ,o.1.

'-12- ENV/157/76-E
ί
Whereasadisparity betweentheprovisions alreadyinapplication orin
preparation inthevariousMemberStatesconcerning thequality
requirements firwatersfavourable toshellfish ..growthcancreateunfair
conditions ofcompetition andthusdirectlyeffectthefunctioning ofthe
CommonMarket;whereastherefore anapproximation ofthelaws,asprovided
forinArticle100oftheTreaty,shouldbecarriedoutinthisfield;
Whereasthiscpproximatlon ofthelawsshouldbeaccompanied byComrunity
actiontoattain,throughmorecomprehensive rules,oneoftheobjectives
oftheCommunity inthefieldoftheprotection oftheenvironment andthe
improvement ofthequality .,oflife;whereastherefore certainspecific
provisons shouldbeLaiddown;whereas,sincethepevertotakethe
necessary actionisnotprovided forbytheTreaty,Article 235ofthe
Treatyshouldbeinvoked,
Whereas,inordertoattainthequalityobjectives ,theMemberStatesmust
laydownlimitvaluescorresponding tocertainparameters ;whereaswaters
favourable toshellfish growthmustbemadetoconformtothosevalues
withinfiveyearsfollowing thenotification ofthisDirective ;
Whereasitshouldbeprovidedthatwatersfavourable toshellfish growthwill,
undercertainconditions ^bedeemedtoconformtothe.relevantparametric
valuesevenifacertainpercentage ofsamplestakeninthe.shellfish
breedingareadoesnotcomplywiththelimitsspecified intheAnnex;
Whereas,inordertoensurecontrolofthequalityofwatersfavourable to
shellfish growth,samplesshouldbetakenrecularly andtheparameters
specified inthe.Annexshouldbemeasured ;
Whereascertaincircumstances arebeyondthecontrolofMemberStatesand
therefore thepossibility ofgrantingcertain waivery shouldbeprovided
for;whereasthesewaiversmustbenotifiedtotheCommission ;

-13-- ENV/157/76-F.
Whereastechnicalprogressnecessitates rapidadaptation ofthetechnical
requirements laiddownintheAnnex;whereas,inordertofacilitate the
introduction ofthemeasuresrequiredforthepurpose,,*procedureshould
beprovidedforwherebyclosecooperation wouldbeestablished betweenthe
iienberStatesandtheCommissionwithinaCommittee onAdaptationto
TechnicalProgresssettipunderthe/CouncilDirectiveof8December1975
1concerning thequalityofbatmngwf.:ter,
HADADOPTEDTHISPIPF-CUVE :
OJ!!oL31,5.2.1976C76/160/EEC)

ENV/157/76--B
> »
Article 1
1.Ihis Diactive concerns thequality requirements forwaters
favourable toshellfish growth .
2.Forthepurposes ofthis Direo.tive :
(a) ■"waters favourable toshellfish growth "means sear-water
orareas thereof where there arenaturally-occurring beds and/or
farms forraising shellfish /inparticular oysters ,mussels ,clams ,
cockles ,scallops andperiwinkles .
(b) .. ..."areas favourable toshellfish growth "means anyplace
where waters favourable toshell growth arefound .
(c)ue "reference area"means thenearest coastal area tothe
areas favourable toshellfish growth which isnotsubject directly
orindirectly todischarges likely tocause pollution andwhich
iscomparable tothearea favourable toshellfish growth byreason of
thesimilarity *of -itsf^eonraphical afadmeteorological conditions .
Article 2
Porthepurposes ofthis Directive , Member States shall adopt the
requisite measures tospecify theareas favourable toshellfish growth
andthereferenoe areas within the time limits laid down inArticle ":11.
Articlo 3
1*Thephys >c<jr>-chemical andbacteriological parameters which define the
quality requirements forwaters favourable toshellfish growth are
indicated intheAsr.ex which forms anintegral part ofthis Directive .
Member States shall setthevalues ofthese parameters applicable
towaters favourable toshellfish growth .
2.Thevalues .u .'.'.set ..rpursuant toparagraph 1maynotbe '■essstringent
than those given intheColumns oftheAnnex marked I,.

-15- ENV/157/76-E
3.Whereasvaluesappearin.theColumnsmarked GintheAnnex,..whether
ornotthereisacorresponding valueintheIcolumnsintheAnnex,Member
Statesshallendeavour -subjecttoArticle 7,toobservethemasguidelines .
Article 4
1."ercborStatesshalltakeallnecessary measures toensurethat,within .
fiveyearsfollowing thenotification ofthisDirective,thequality
requirements ofwatersfavourable toshellfish growthconformtothe
parametric valuessetinaccordance withArticle 3.
2.MemberStatesshallensurethatinareasfavourable toshellfish growth
whicheredeveloped afterthenotification ofthisdirective,the'Svalues"
laiddownintheAnnexareobserved fromthetimethattheareafavourable
toshellfish growthisexploited .
Article 5
1.Forthepurposes ofArticle 4,watersfavourable toshellfish growth
shallbedeemedtoconformtotherelevant parameters ;
ifsamplesofthatwatertakenftthesamesamplingpointandatthe
intervals specified intheAnnex,overaperiodoftwelvemonthsshowthat
itconformstotheparametri cvaluesforthequalityofthewater ,concerned,
inthecaseof:•
-95?,ofthesamples forparameters corresponding tothosespecified in
columnIintheAnnex,exceptforpH,temperature ,oxygen,salinity and
thebacteriological quality,whichmustconformtothepercentages orvalues
indicated intheAnnex, .. ;
-9C'<ofthesamplesinallothercases,
andif,inthecaseofthe5%andofthesampleswhichdonotcomply:
-thevaluesmeasured inthewaterdonotdeviatefromtheparametric
valuesinquestion bymorethan50%,exceptfortheparameters regarding
temperature ,pH,oxygen,salinity andbacteriological quality,

-16- ENV/157/76-E
:' i-lf:-!i
'fc:
-consecutive sairdesofwatertakenatastatistically suitableintervals
donotdeviatefromtherelevant parametric values.
2.Deviations fropthevaluesreferred toinArticle 3sh^>11notbe
takenintoconsideration inthecalculation ofthepercentage referred
toinparagraph 1whentheyaretheresultofnaturaldisasters or
abnormal weatherconditions .
Article 6
1.Thecompetent authorities intheMemberStatesshallcarryoutthe
sampling ofthewaters :favourable toshellfish growth,theminimum
frequency ofwhichislaiddownintheAnnex.
2.Thesamplesshallbetakenintheareasfavourable toshellfish
growth?tthedepthofwaterwherethedensityofshellfish ishighest,
exceptforhydrocorbcn sampleswhichshallbetakenatsurfacelevelend
.forthetemperature /whichshallbemeasures 1metrebelowthesurface.
3.Aninvestigation oftheconditions prevailing inthereference areas
andtheregionswithinthemaximumlimitsreachedbythewaterinthe
qourse ^oftidalFiovements shallbecarriedoutscrupulously andrepeated
periodically inordertoobtaingeographical andtopographical data,and
todetermine thevolumeandn?tureofallpolluting andpotentially
polluting discharges andtheireffectsaccording tothedistance fromthe
areafavourable toshellfish growth,withaviewtoensuringthesalubrity
ofthese :waters. '
4.Shouldinspection byacompetent authority ors?.mlingandanalysis
operations revealthatthereisadischarge oraprobable discharge
ofsubstances likelytolowertheoualityofthewater v..favourable
toshellfish growth,additional sampling musttakeplacetodiscoverthe
sourcesofthepollution andtoeliminate them.Suchadditional sampling
mustalsotakeplaceifthereareanyethergroundsforsuspecting that
thereisadecrease inthequalityofthewater.

17- Fj'V/157/76-E
5.Thereference methodsofanalysis tobeemployed forthedifferent
parameters concerned aresetoutintheAnnex.TheMemberStatesshall
takethenecessary measures toensurethatlaboratories whichemploy
othermethodsprovetotheConrrission thattheresultsobtained are
eciuivalent crcomparable tothosespecified intheAnnex.
Article 7
1.Implerentation ofthemeasures takenpursuant tothisDirective
mayinnocircumstances leadeitherdirectly orridirecti.ytodeterioration
ofthecurrentqualityofwatersfavourable toshellfish growth..
2.'lemberStatesmayfixmorestringent growthvaluesforwaters
favourable toshellfish thanthoselaiddowntithisDirective . .
Article S
1.Inthecaseofwatersuitable forshellfish growthlyingacross
frontiers.MemberStatesshalljointlydelimitallwaterssuitablefor
shellfish growthinthecross-frontier areastowhichthisDirective
appliesanddefinethevaluesapplicable tothem.
2.TheCommission shallparticipate inthisjointoperation .
Article 9
«
ThisDirective naybewairedintheeventofnaturaldisasters orabnormal
weatherorgeographical conditions .
Innocasemaytheexceptations provided forinthisArticledisregard the
requirements essential forpublichealthprotection andconsumerprotection
WhereaHe^bcrState'waivesthepro/isiensofthisDirective,itshall
forthwith notifytheCommission thereof,statingitsreasonsandthe
periodsanticipated .

-18-■'- EHV/157/76-E
Article.10
"liTtn^liîllll'fitWT m /
Suctvamendments asarenecessary foradaptingtotechnical progress :.t
theparameters ,
theGandIvaluesoftheseparameters and/or
themethodsofanalysis
givenintheAnnexshall "beadoptedtytheCommittee setupunderArticle
10ofCouncilDirective of8December 1975concerning thequalityof
bathingwaterandinaccordance withtheprocedure laiddowninArticle 11
thereof . -
Article 11 .
-1.MemberStatesshallbringintoforcethelaws,regulations and
administrative provisions necessary tocomplywiththisDirective within
'twoyearsofitsnotification .Theyshallforthwith informtheCommission
thereof. . .. .'
2•-MemberStatesshallcommunicate totheCommission thetextofthe
mainprevisions ofnational lawwhichtheyadoptinthefieldcoveredbythis
Directive .
Article 12
'ThisDirective isaddressed totheMemberStates.
Doneat ,
fortheCouncil
ThePresident .

19 'ENV/157/76-E
AIÏÏEX
Qualityrequirements forwatersfavourable toshellfirstcrcwth
PiiRAlîETEHS G IMINIMUM Siïïî-
PLIITG AIJD
KEASURHIG
PREQUEî-ICY(l )KSTPIODS OFACTALYSIS
ANDINSPECTION
I
1J
IpHpliunit !
!pHvariations mustnotexceed+0,5pHunits
withinthelimitsbetween pH7«>0and£.0
asagainstthoseinthereference areaQuarterly ilectrometric ,withcalibration by.
neaisoftwobu-ffersolutions ofknown
pH,closeinvalueto,preferably on
eithersideofthepHvaluetobe
rnefusured
»– ,–|
2.1Temperature °C Thedifference inthetemperature ofthe
waterfavourable toshellfishgrowth
mustnotexceed2°Cat1nictrebeneaththe
surfaceofthewaterasagainstthatin
thereference area.
Moreover ,thevariation nustnotexceed
5°Cin6hoursateachpointatwhich
samplesaretakenintheareafavourable
toshellgrowthQuarterly
(twosam­
ples)Thormometric
3.Colour
Scaleunit
Pt
INatural colourofthewaterfavourable to
shell-fich growthidentical tothatofthe
reference areaafterfinalfiltration of
the"samplethroughamembrane of0,45
! . 'Quarterly Comparative methodstandards on
thePt/Coscale .
1i
(l)Theseminimumsamplingandmeasuring frequencies applywhensamplestakeninpreviousyearsgaveresultswhichare-
appreciably betterthanthoseinthisAnnex .andwhennonewfactorlikelytolowerthequalityofthe-waterhas-appeared.

20 ENV/157/76-E
PARAMETERS G1 I
, , ; 'MINIMUM SM– ,
PLIUGAND I
MEASURING ... !
FRECJJEircY(l )METHOD0FMALYSIS
MDIÎTSPECTI0ÏT
4.Materials inmg/lMES
suspensionMaximum20;binadditiontotheexisting
contents measured asagainsttherefe­
rencearea. -
Thesevaluesdonotapplywhenthefollo­
wingsubstances arepresentintheen­
vironment :
(a)suspendedmaterials withnoxious
properties
(b)solublenoxioussubstances
(c)whentheoxygencontentofthe
waterisreduced asaresultof.
thedecomposition oforganic
materialsQuarterly
*-bjrfiltration ona0.45M
*membrane '
•. N1
drying,.at105?Cand
weighing
5*
ιSalinity °/0O12-33o/e(-<40Voo
–Allvariations ofmorethan10%inre­
lationtothereference areaforover
aweek ■
Eomodification ofthesalinity balance
ofthewaterfavourable toshell-<fish
growthMonthly -Conductimetrxc
6.Oixygen ^0^
(saturation )^70ia(averâgevalue)
- *r *
Mustnotdropbelow7070formorethan
6hoursduringtheperiodandnever
below50%Monthly
(overape­
riodof
24hours)
i■■1■ 1,.1■-fclieWinkler method

21 EFV/157/76-E
––– 1
I
PAEiiMlTERS
I
I
iG 1' !
.- !
_rilTL-IUIT
SAtiPLHTG ASID
.MEASURING
-FEECJJEHCY(l )METHOD OFA1IALYSIS
ANDINSPECTION
7.Hydrocarbons olpetro­
leumorigin
I<
Hydrocarbons mustnotbepresentinwater
favourable toshell-fisligrowthinsuch
quantities asto:
–produceavisiblefilmonthesurface
ofthewaterand/oradepositonthe
shell-fish
–communicate totheshell-fish aper­
ceptible hydrocarbon flavour i
–havenoxiouseffects ontheshell-fishQuarterly Visualinspection ofthe
waterfavourable to
shell-fish growthand
tastingoftheshell-fish
8.Synthetic orgcjnohalo-
genatedsubstances such
asPCTfDDTandits
metabolites ,IDE/DDE
aldrin,dieldrin
IiI
-thetotalamountofsynthetic organo-
halogenated substances .mustnot
exceedaconcentration of5y^g/l
-innocaseshouldtheconcentration -
ofasinglesubstance exceed1^
ofthelethalconcentration ofthe
shell-fish larvae(LC59/96hours)
(iiO50/96h:isthelethalconcentration:
corresponding toamortality of5^>'<=
oftheshell-fl§1larvaein96hours)Half-yearly '•
I
fj
I
i
i
-"jInvoteriavcurabl eto
shell~fiehgrowth.:„
Gaschromatography' ..after
extraction witha-suita->'v-■
blesolventandpurifi­
cation
te.

22 ElAT/157/76-E
PARâMETïïM G IMINIMUM
SAMPLING AND
MEASUP2NG
FREQUENCY (l)/
JEETEDD 0?A1TALISI3
AMD INSPECTION
s.Bacteriológica ]cruality
faecal coliforn.s /100mi-^300in90£°f "thesamples
- 500in10%oftheremaining samples
ofshell-fish flesh and the ■interval vular
liquidQuarterly/
Inshell-fikhi flesh and inter­
valvalarliquid :fermentation
in/iaultiple tubes .Subculturinj
ofpositive tubes onthe
-confirmation medium .Amount
according toKPN (most provable
■number )
10. .l'étais
Silver mg/lAg
'.Arsenic As
.Cadmium Cd
.Chrome Cr
.Copper Cu
.Mercury Hg
■Nickel Ni
Lead Fb
Zinc Zn
■ - – j21Concentration ofeach substance Inthe
water favourable toshell-fish growth
must not exceed alevel which causes :
-noxious effects onthe shell-fish
and its larvae
-anunpleasant change intaste
Thesynergic effect ofthese metals
must betaken into considerationHalf-yearly Inwater' favourable to
shell-fish growth :
Atomic absorption preceded ,....
where appropriate ,bycon­
centration and/orextraction
I
11.Substtaices affecting the
taste ofthe shell-fish
(cyclic hydrocarbons ,and
derived phenol ates)
I
• IAlower concentration than that likely
tochange the taste oftheshell-fish
ascompared with that found inthe
reference areaQuarterly ■Organoleptic examination of
shell -fish
2)Hisvalues assigned tothese ]
referred toinArticle 10of ■<r ■ 11 11
parameters
this Direcir IIII-– I J.-I–.–I. I I ■■■ ■■ I I I I■ i..._ . .11 j
will befixed inaccordance with theprocedure
;ive .foradaptation totechnical progress