# APPENDIX A

WaterQualityStandardsRegulation



# WATERQUALITYSTANDARDS HANDBOOK

SECONDEDITION

### Appendix A- WaterQuality StandardsRegulation



# WaterQualityStandardsRegulation

(40CFR131;48FR51405,Nov.8,1983;RevisedthroughJuly1,1991;amendedat 56FR64893,Dec.12,1991;57FR60910,Dec.22,1992)

TITLE 40-PROTECTION OF ENVIRONMENT

CHAPTER 1-ENVIRONMENTAL PROTECTION AGENCY

SUBCHAPTER D-WATER

PROGRAMS

PART 131-WATER QUALITY

STANDARDS

Authority: 33 U.S.C [25]et seq. [Amended at 56 FR 64893. Dec. 12, 1991; 57 FR 60910, Dec. 22, 1992]
Subpart A-General Provisions

see 131.1 Scope 131.2 Purpose 131.3 Definitions 131.4 State Authority 131.5 EPA Authority 131.6 Minimum requirements for water

quality standards submission. 131.7 Dispute resolution mechanism. 131.8 Requirements for Indian Tribesto be

treatedas States for purposes of waterqualitystandards. Subpart D- Federally Promulgated WaterQuali- trial. and other purposes including navigatyStandards. tion. 131.31 Arizona. 131.33-131.34 [Reserved] Such standards serve the dual purposes of

131.35 Colville Confederated Tribes Indian establishing the water quality goals for a

131.36Toxics criteria forStates

Reservation specific water body and serve asthe reguSubpartA-GeneralProvisions latory basis for the establishment of wa-

notcomplying withCWAs 303(c)(2)(B) ter-quality-based treatment controls and

§131.1 scope. Thus part describes the requirements and procedures for developing, reviewing, revising and approving water quality standards by the States asauthorized by section 303(c) of the Clean Water Act The reporting or recordkeeping (information) provisions in this rule were approved by theOffice of Management and Budget under 3504(b) of the Paperwork Reduction Act of 1980, U.S.C. 3501et seq. (Approval number 2040-0049). strategies beyond the technology-based levels of treatment required by sections 301(b) and 306 of the Act.

§131.2 Purpose

SubpartB-Establishment ofWaterQuality Standards 131.10 Designation ofuses. 131.11 Criteria 131.12 Antidegradation policy 131.13 General policies SubpartC-Procedures forReview andRevision ofWaterQualityStandards 131.20 Statereviewandrevision ofwater

qualitystandards. 131.21 EPAreviewandapproval ofwater

qualitystandards. 131.22 EPApromulgation ofwaterquality

standards. A water quality standard defines the water quality goals of a water body, or portion thereof, bydesignating theuse or
uses to be made of the water and by setting criteria necessary to protect the uses. States adopt water quality standards to protect public health or welfare, enhance the quality of water and serve the purposes of the Clean Water Act (the Act) “Serve the purposes of the Act” (as defined insections 101(a)(2) and 303(c) of the Act) means that water quality standards should, wherever attainable. pro vide water quality for the protection and propagation of fish. shellfish and wildlife and for recreation inand onthe water and take into consideration their useand value of public water supplies, propagation of fish, shellfish, and wildlife, recreation in and onthe water, and agricultural, indus- §131.3 Definitions.
(a) The Act means the Clean Water Act (Pub. L 92-500, as amended. (33 U.S.C. 1251et seq.)) (b) Criteria are elements of State water quality standards, expressed as constituent concentrations. levels. or narrative statements. representing aquality of water that supports a particular use. When criteria arc met, water quality will generally protect the designated use. (c) Section 304(a) criteria are developed by EPA under authority of section 304(a) of the Act based on the latest scientific information on the relationship that the effect of aconstituent concentration has on particular aquatic species and/or human health. This information is issued periodically to the States as guidance foruse in developing criteria. (d) Toxic pollutants are those pollutants listed by the Administrator under section 307(a) of the Act. (c) Existing usesare those usesactually attained in the water body on or after November 28, 1975, whether or not they

are included in the water quality standards. (f) Designated usesarc those usesspecifiedin water quality standards for each

(9/14/93)IOl(g) and 518(a) of the Clean Water A~I. uatcr qualIly standards shall not bc construed tosupcrscdcr orabrogate rights to quantities of water (b) States (as defined In 5131 3) may ISSUCccrlifications pursuant IO the rcqulrcmcnts of Clean Water Act section 40I. Revisions adopted by States shall be applicable for use in issuIng State ccrtihcations consistent with the provisbons of $131.21(c). (c) Where EPA determines that a Trlbc qualifies for treatment as a State fur purposes of uarcr quality standards. rhc Trlbc Ilkcwlsc ~UJII~IC~ fur treatmen d\ .I Sl.iic for purpox~ 

## d ccrlificalions cunductcd under Clcun U’atcr A~I scc(lon 401 ($131 4rcblscd at 56 FR 64893. kc I?. ;99t1
$131.5 EPA authority.
]§I 31.5 former paragraphs (a)-(c) rcdesignated asnew (a) and (a)(l)-(a)(5) at 56 FK b4893, I>cc 12, IVYt] (a) Lndcr scci~on 303(c) or the Act, L:PA ISto rcvicu and toapprove ordisap prove 

### State-adopted water qualIt standdrds. The rcvicw involves adctcrmtnalwn of: (I) Whether the Stale hasadopted watcr useswhich arc conslstcnt with the rcquircmcnts of the Clean Water Act; (2) Whether the state has adopted critcria that protect the designated water uses; (3) Whether the State hasfollowed its legal proccdurcs for revising or adopting \randards; (4) Whether the State standards which donot include the usesspecified insection lOI(a)(?) of the Act arc based upon appropriate tcchmcal and vxntific data and dnalyscs. and (5) Whcthcr the SI~IC submission

mcc~s the rcquircmcnts lncludcd In 51316 of this part If EPA dctcrmlncs that State water qua111y standards arc c‘onslstcnt with the factors listed in paragraphs (a) through (c) ofthis section, EPA approves the standards EPA must dlsapprovc the State water quality standards under scctlon 303(c)(4) of the Act, IfS~atc adopted standards arc not consistent with the factors Ilstcd Inparagraphs Ia) through (c) of this section EPA may also promulgate a new or revised standard

uhcrc ncccssary tomeet the rcquircmcnts uf the Acr (b) Scctlon 401ofthe Clean Water Act authorlxs EPA 10ISNCccrtlficatlons pursuant IOthe rcquircmcnts of scctlon 401 In an) case whcrc a State or Interstate agency has no authority for IssuIng such ccrtihcations
[§I31 S(b) added at 56 FK 64893. DCC 12. 19911

5131.6 Minimum rquircmcnts for waler quality standards submission.

The following clcmcnts must beIncludcd Ineach State’s water qualIt> standard\ ,ubmltrcd IOtlPA fur rcvlcw (a) UsedcsignJllans c‘onsrslcnt with the pruvlblons of scctlonh 101(a)(?) and 303(c)(!) of the Act (b) Methods used and analyses conducted tosupport water quality standards rcvlsions (c) Water qualit) criteria sutfisicnl tu protect the designated uses (d) An antidegradation policy consis1cnf ~lth 5131 I? (cj Ccrlrficstlon by the Stare Attornc) Gcncral orother appropriarc legal authorII> ullhln the State that 1hcuatcr qualit) btandards were duly adopted pursuant IO Slalc law. (f) Gcncral InformatIon uhlch will aId
I~IC Agency In dctcrmlnlng the adequacy of the sclcntlfic basis of the standards which do not include the usesspecified In scctlon 101(a)(2) of the Act as well as Information ongcncral polrc~cs applicable toState standards which may affect thclr application and Implcmcntallon.
$131.7 Dispute resolution mechanism. (aj Where disputes between Slates and lndlan Tribes arIse asaresult ofdllfcrrng water quality standards on common bodICS of water. the lead EPA Regional Administrator. as dctcrmlncd based upon Ok18 circular A-105. bhall bercsponslblc

rar acting In accordance with the pro\)-


### wns ofthis scstlc)n (bj The Regional Administrator shall attempt to resolve such disputes where (I) The dlffcrcncc In water qualIly standards rcsLI1b in unreasonable conscqucnccs; (21The dispute isbcrwccn aState (a, defined in $131 3(~) but cxclu~i~c of JII Indian Trlbcsj and a Trdx which EPA hasdctcrmlncd quahfics tobetrcatcd asa State 

## rorpurposes 

## d waler quall1> slandardh.(3) A reasonable cfTort to rcs~lvc the

dtsputc without EPA involvement has ken made. (4) The requested relief ISconsistent with the provistons of the Clean Water Act and other relevant law. (5) The dttfcrtng S~atc and Trtbal watcr quality star&rds have been 3dopicd pursuant toSI~IC and Tribal law and ap proved by EPA: and (6) A valtd wrtttcn request has been submitted by ctthcr the Tribe or the Slate. (c) Either a State or 3Tribe may rcquest EPA to resolve any dtsputc whtch s3ttstics the crt1crt3 of paragraph (b) of 1htssectton Wrtttcn requests for EPA tn. volvcmcnt should bcsubmtttcd tothe lead Regional Admintstrator and must includc (I) A concise statement of the unrcasonablc consequences that arc alleged to have arisen because of differing water quality standards; (2) Aconcise dcxriptton of the actions which have been taken to resolve the dispute wIthout EPA Involvement; (3) A cuncix tndtcatJon of the w31cr qualtty st3ndards provtston which h3s rcsultcd in the alleged unreasonable conscquences; (4) Factual data to support the alleged unreasonable conscqucnccs. and (5) A statement of the rclicf sought from the alleged unreasonable conscqucnccs. (d) Where. inthe Rcgmnal Admtnistra- (or’s Judgmcnl. EPA tnvolvcmcnt is ap propriatc based on the factors of paragraph (b) of thts sectton. the Regional Admtntstrator shall. wtthtn 30days, nottfy the parties in wrtttng that he/she IS lntttattng 3n EPA dtsputc rcsolutton actton and solictt thctr wrtltcn rcsponsc. The Rcgronal Admintstrator shall also make reasonable efforts toensure that other interested indivtduals or groups have notrcc of this action Such efforts rh3ll Include but not bclimited to the following. (I) Wrtttcn notice torcsponsiblc Trrbal and State Agcnctcs, and other affected Federal Agcuctcs. (2) Koticc COthe specific Individual or entity that 1salleging that an unrcasonable consequence 1sresulting from diffcrmg standards having been adopted on a
common body of waler. (3) Public ntnlc‘c tn Ioc.tI ncw\p.rpcr\. r&to. 3nd iclcvt~lon. 35appraprtJtc, (4) Publication in trade Journal ncwsletters. and (5) Other means asappropriate (e) If in accordance with appltcablc State and Tribal law an Indian Trtbc and State have entered into anagreement that resolves the dispute orcstabltshcs 3mcch- ;IIIIV~ for rcsolvtnp adtrpu1c. EI’A rh.111 dcfcr tothis agrccmcnt whcrc II IScon\t\- tent with the Clean Water ACI and whore 11has been approved by EPA. (fj EPA dispute resolution actions sh3ll bcconsistent with one oracombination of the following options. (I) ,bfrdiorion The Rcgtonal AdmIntstrator may appoint amcdtator IOmediate the dispute. Mcdrators sh3ll be EPA cmployccs, employees from other Fcdcral agencies. orother tndividuals with appropriate qualifications. (ij Where the State and Tribe agree to parttcipatc in the dispute rcsolutton process. mediation with the intent to cstab lish Tribal-State agreements. conststcnt with Clean Water Act scctlon 518(d) shall normally bcpursued asafirst cfforl. (ii) Mediators shall act 3s neutral facllttators whose function ISIOcncauragc cornmuntcation 3nd ncgotratton bc~uccn all parties to the dispute. (lit) Mediators may establish advisory panels, to consist in part of representa. tivcs from the affected parties, to study the problem and recommend 3napproprt31~solulron. (iv) The procedure and schedule for mediation of individual disputes shall bc determined by the mediator In consult;ltion with the parties. (v) Ifformal public hcarlngs arc held In conncctton with the acttons tJkcn under thts paragraph. Agency rcqutrcmcnts ~1 40 CFR 25.5 shall bc followed. (2) .4rhrrorron. Where the parttcs to the dlsputc agree toparttctpatc Inthe dtsputt resolution process. the Regional Admtnistrator may appoint an arbilrcltor or arbitration panel toarbitrate the drsputc Arbitrators and panel members shall be EPA employees. employees from o1hcr Federal agcnctcs. or other tndtvlduals with appropriate qualificattons. The Rcgional administrator shall sclcct as arbttr3tors and arbrtration panel members tndrvrduals who arc agreeable toall parties.
arc knowledgeable concerning the rcqutrcmcnts ofthe water qualtty standard> prc,gr;im. have ;I b;l\tc undcrst;tnd~np of the pol1t1~11 and cconomtc tntcrchts of Tribes and States tnvolvcd. and arc cxpcctcd to fulfill the duttcs faIrI> and emparliall! (I) The arbitrator or arbttrstton p3ncl shall conduct one or murc prtv3tc or pub IIC:mccttnps ulth the pJr1tcs .IIIJ ac‘~tvcly u)II~I~ tniormatton prrt.ttntnp tr) the cflcita oi Jt!fcrLng w.iIcr q(u,tl~ty prnul rc’- qutrcmcnts on upslrcam .tnJ Jc)wnslrcdm dtschdrgcrs. cumpdrattrc rtaks IU public health and the cnvtronmcnt. cconumtc lmpacts. present and hrsiortcal water uses. the qu311ty of the w3tcrs sub)ccl 10such s13ndards. and other factors rclcvanl IO the dtsputc such asuhclhcr prqwscd wu3- tcr qu~lil) crttcri3 3rc more stringent :hdn nccosclry tosupport dcstgnatcd uses.
more strtngcnt than natural bxkground u3tcr qu3l1ty or uhcthcr dc\tgnatcd uses
arc rcasonabir gt\cn n.ttur.tI background u,itcr quality (II) Folloutng cclnstdcr3ttLm of relevant fxtors 3~ dcfincd In pdr.rgr3ph (f)(2)(1) of this section. the arbttrator or 3rbttratron panel shall have the aurhortty and roponstbtlrty to provtdc 311prlrtics ;Ind the Regional ,\dmint,tr~tor utth a wrrtten reiummcndatron fur rcsL)lutltin of the dtsputc Arbltralwn pncl rc~clmrncndattons shall. Ingcncrdl. bercachcd by majortty vole. tioucvcr. uhcrc the parties agree to btndtng arbttratron. or where rcqutrcd by the Rcg~t)n~l Admtntstrator. rccernrncnddtlons 

### oi \uch .Irhltrcltlon panel5 m.ty bc undntrncru~ dcirstuns. W’hcrc btndlng or non-btndtng arbttr3tmn panels c3nnot reach .I undntntous rcc’ommcnddlxm aflcr a rcasan3blc period of ttmc. the Kegtonal Admtnrktrator may drrcct the panel IC,ISSUC3non-btndtnp dcctrton by rnaJortty vole (III) The arbitrator or arbttrdtton panel mcmbcrs may consult utth FPA’s Office of Cicncral Counsel on legal 15sucs. but otherwIse bhall h3bc nabr’l />urrz communtc3ttons pcrtatntng II,the drsputc. Fcdcr31employee+ uho arc 3rhltr,ttor\ or arbrtratton panel mcmbcrs sh.ill be ncutr3l and shull not bcprcdtspoccd for oragdtnst the poslrton of any dtsputtng p:lrty based

on uny f,cdcral Trust rcsponstbtltttcs which thctr cmploycrs may h3vc utth rcspcct tothe Tribe. In3ddttron. arbttrators c)r arbttratmn p3ncl mcmbcrs who arc f.cdcral employees shall XI mdcpcndcntly from the norm31 tlrr.!rchy ut1hin thctr rigcncypanel’s rccommcndation unless they voluntarily cntcrcd into abinding agreement IOdo so (v) If a party IO the dispute believes that the arbitrator or arbitration panel hasrecommended anaction contrary toor InconsIstent with Ihc Clean Water ACI. the party may appeal the arbitrator’s rccommcndation IO the Regional AdmintsIrator. The request for appeal must be in writing and must include adescription of the statutory basis for altering the arbitrator’s recommendation. (vi) The procedure and schedule for arbItration of individual disputes shall be dctcrmincd by the arbitrator or .rrbiIraIion panel in consultation with parties (vii) If formal public hcartngs arc held in connection with the actions taken undcr this paragraph Agency rcquircmcnts at 40 CFR 255shall bcfollowed (3) Dispute Rrsolutron De/oulr Procedure Where one or more parties (as dcfined in paragraph (g) of this sectton) rcfuse IOparticipate ineither the mediation

or arbitration dispute resolution proccsses. the Regional Administrator may ap point asingle oflictal or panel lo review available Information pcrtatning IO the dispute and IOissue awritten rccommcndatton for resolving the dispute Review officials shall be EPA employees, cmployccs from other Federal agcncics. or other indtviduals with appropriate qualilicaItons. Review panels shall include appropriate members lo beselected by the Rcgional Administrator inconsultation with the parttcipating parties. RccommcndaItons of such review officials or panels shall, IOthe extent possible given the lack of participation byoneor more parties. be reached Inamanner identical to that for arbitration of disputes spcctfied in paragraphs (f)(2)(1) through (f)(2)(vii) of this sectton (g) Dejijin~frons For Ihc purposes ofthis scclion (I) Dlspufr Kesolu/ron Mvchanrsnt
means Ihc EPA mechanism cstablishcd pursuant IO Ihc rcqutrcmcnts of Clean Water Acl section 518(c) for resolving unreasonable consequences that arise asa result of differing water quality standards that may be set by States and Indian Tribes located on common bodies of ualcr.(2) Parfrrs IOaState-Tribal dispute Include the State and the Tribe and may, at thedtscretton ofthe Regional AdministraIor. include an NPDES permittee. citizen. citilcn group. or other afcctcd entity [§I 317added (II 56 FR 64893. Dee 12. I9911
$131.8 Requirements for Indian Tribes IO be treated as Stales for purposes of water quality standards. (a) The Regional Administrator. asdcIcrmincd based on OMB Circular AIOS. may treat an Indian Tribe asaState for purposes of the water quality standards program if the Tribe meets the following criteria. (I) The Indian Tribe ISrccognircd by Ihc Sccrctary of Ihc Interior and meets the definitions in 5131 3(k) and (I). (2) The Indian Tribe has a governing body carrying out substanttal govcrnmcnIJI duties and powers. (3) The water quality standards pro gram IObe administcrcd by the Indian Tribe pertains IO the management and protection of water resources which are within the borders of the Indian rcscrvaIion and held by the Indian Tribe. within the borders of the Indian reservation and held by the United States intrust for Indians, within the borders of the Indian reservation and held by amember of the Indian Tribe if such property interest IS subject IOatrust restriction onalienation,

orotherwise within the borders of the Indian reservation, and (4) The Indian Tribe ISreasonably cxpcctcd IObecapable. inthe Regional Administrator’s judgment. of carrying out the functions of ancfTecIivc water quality standards program inamanner consistent with the terms and purposes of the Acr and applicable regulations (b) Rcqucs~s by Indian Tribes for Ireatmcnl asStales for purposes ofwater quality standards should bc submitted IO the lcad EPA Regional Administrator The application shall include the folIowIng information (I)Astatcmcnt that theTribe ISrccognircd by Ihc SccrcI.try of the Interior (2) A descriptive statcmcnt dcmonstrating that the Tribal governing body is currently carrying out substantial govcrnmental duties and powers over adefined

area The statement shall. (i) Describe the form of the Tribal government; (ii) Describe the types of governmental functions currently performed by the Tribal governing body such as, but not limited IO.the cxerctsc of police powers affecting (or relating IO)the health. safcI). and welfare of the alfcctcd population. taxation. and the cxcrctsc of Ihc power of cmtnent domain; and (III) Identify the source of the Tribal govcrnmcnt’s authortry IOcarry out Ihc govcrnmcnlal functions currently being performed. (3) A dcscrtptivc statement of the Indian Tribe’s authority IO regulate water quality. The statement shall include: (I) A map or legal dcscrtption of the

area over which the Indian Tribe asserts authority IOregulate surface water qualiry.(II) A statement by the Tribe‘s legal counsel (or equivalent offtctal) which dcscrtbcs the basis for the Tribes assertion of .ruIhoriIy. (tit) A copy of all documents such as Tribal constiIu:Ions. by-laws, charters. exCCUIIVCorders. codes. ordinances. and/or resolutions which support the Tribe’s assertion of authority; and (iv) an identification of the surface waIcr for which the Tribe proposes IOcstabltsh water quality standards (4) A narrative statement describing the capability of the Indian Tribe IO administer anC~~CCIIVC water quality standards program The narrative statement shall include: (i) A description of the Indian Tribe’s previous management cxpcricncc including. but not limited IO.Ihc administration of programs and services authorized by the Indian Self-Determination and Education Assistance Act (2s U.S.C. 450 cr scq ). the Indian Mineral Development ACI (25 USC 2101 PIseq).orthe IndtanSanitation Facility Construction ActivIIY Act (42 U.S.C. 2004a); (ii) A list of existing environmental or public health programs administered by the Tribal governing body and copies of rclatcd Tribal laws. ~~IICICS.and rcgulalions; (III) Adescription of the entity (or cntiIICS)which exercise the exccut~ve. IegislaIive. and judicial functions of the Tribal govcrnmcnl; (IV) Adescription ofthe cxlstlng or pro posed. agency of the Indian Tribe which will assume primary responsibility for csIablishing. reviewing, implementing and revising water quality standards; (v) A description of the technical and administrative capabilities of the staff IOadmintster and manage anelfectivc water

qualtty standards program or a plan which proposes how theTribe will acquire additional administrative and technical expertise The plan must address how the Tribe will obtain the funds toacquire the adminrstrativc and technical expertise. (5) Additional documentation required by the Regional Administrator which, in thejudgment ofthe Regional Administrator. is necessary to support a Tribal rcquest for lrealmenl asaStale. (6) Where the Tribe has previously qualified for treatment asaState under a Clean Water Act orSafe Drinking Water Act program, the Tribe need only provide the rcqutrcd informatton which has not been submitted inaprevious treatment as
aState application. (c) Procedure for processing an Indian Trtbc’s applicatton for treatment as a Slate. (I) The Rcgtonal Administrator shall process an application of an Indian Tribe for treatment asaState submitted pursuant IO 131.8(b) In a timely manner He shall promptly notify the Indian Tribe of receipt of the applicatton. (2) Within 30days after receipt of the Indian Tribe’s application for treatment
as a State. the Regional Administrator shall provtdc approprtatc notice. Notice shall (i) lncludc Information on the sub stance and basis oftheTribe’s assertion of authority IOrcgulatc the quality of rcscrvation waters; and (it) Bc provided IOall appropriate govcrnmcnlal cnlrlrcs (3) The Rcglonal Admintstrator shall provtdc 30days for comments IObesub milted on the Tribal application. Comments shall belimited IOtheTribe’s asscrlion of authority. (4) If a Tribe’s asserted authority is subject IO a compcttng or conflicting claim. the Regional Administrator. after consultatton with the Secretary of the Interior, or his designee. and in consideration of other comments received. shall determine whether the Tribe has adcquatcly demonstrated that it meets the requirements of I3I.8(a)(3). (5) Where the Rcgtonal Administrator dctcrmlncs that a Tribe meets the rtquircmcnts of this section. he shall promptly provide written notification IO the Indian Trlbc that the Tribe hasqualified IObctreated asaState for purposes of water quality standards and that the Tribe may initiate the formulation and adoption of water quality standards ag provable under this part. [§13l.S added at 56 FR 64893. Dee 12, I9911 

### Subpart B-Establishment of Water

Quality Standards 

### $131.10Dtsignrtion ofuses. (a) Each State must specify appropriate water usesIObeachieved and protcctcd. The classification of the waters of the State must take into consideration the USC and value of water for public water sup plies. protection and propagation of fish. shellfish and wildlife, recreation inand on the water, agricultural. industrial. and other purposes including navigation. Inno
caseshall aState adopt waste transport or waste assimilation asadesignated USCfor any waters of the United States. (b) In designating usesof awater body and the appropriate criteria for those
uses. the State shall take into considcration thewater quality standards ofdownstream waters and shall ensure that its water quality standards provide for the attainment and maintenance of the water quality standards of downstream waters. (c) States may adopt sub-categories of

a use and set the appropriate criteria IO reflect varying needs of such sub-catcgorics of uses, for instance. IOdifferentiate between cold water and warm water fisheries. (d) At aminimum, usesarc deemed attainable if they can bc achieved by the tmposition of ctlluent limits required under sections 301(b) and 306 of the Act and cost-effective and reasonable best management practices for nonpoinl

source control. (c) Prior IO adding or removing any use. or establishing subcatcgorics of a use,the State shall provide notice and an opportunity for a public hearing under 5I3I.20(b) of this regulation. (f) States may adopt seasonal uses as an alternative lo reclassifying a water body orsegment thereof IOuses requiring less stringent water quality criteria If seasonal uses are adopted, water quality criteria should be adjusted IOreflect the seasonal uses, however. such criteria shall not preclude the attainment and maintcnancc of amore protective use inanother
season. (g) States may remove adesignated USC which isnor an cxisttng USC.asdcfincd in 5131 3. or cstabltsh sub-catcgorics of a USCIf the State can demonstrate that attaining the dcstgnatcd use \snot fcaGblc because. (I) Naturally occurring poilutant concentrations prevent the attainment of the
use; or (2) Natural, ephemeral. intermittent or low flow conditions orwater lcvcls prevent the attainment of the USC.unless these conditions may becompensated for bythe discharge of sufftcicnt volume of cfllucn: dtschargcs wtthout violating State water conscrvatron rcqurrcmcnts IOenable uscs to bc met. or (3) Human caused condtttons or
sources of pollutton prevent the attainment of the use and cannot bc rcmcdrcd

or would cause more cnvtronmcntal damage IOcorrect than IOlcav,c Inplace: or (4) Dams, diverstons or other types of hydrologic modifications preclude the attatnmcnt of the USC.and II ISnot fcastble IOrestore the water body IO IIS original condttton or IOoperate such modrficatron In away that would result In the attainment of !hc use; or (5) Physical condttions related IO the natural features of the water body. such

as the lack of a proper substrate, cover. Row. depth. pools. riffles. and the like. unrelated IOwater qualtty. preclude attainment of aquatic life protection uses;or (6) Controls more stringent than those required by sections 301(b) and 306 of the Act would result in substantial and widespread economic and soctal Impact (h) States may not rcmovc designated

uses if (I) They arc existing uses.asdefined in fI3I.3.unless auserequiring more slringent criteria isadded; or (2) Such useswill beattatncd bytmplcmcnting effluent limits rcqulrcd under sections 301(b) and 306ofthe Act and by implementing cost-effective and rcasonable best management practices for not-point source control. (i) Where existing water quality standards specify designated uses less than those which arc presently being attatncd. the State shall rcvtsc IIS standards IOrcfleet the uses actually bclng attatncd (J)AState must conduct aUSCattatnabihty analysts as dcscrtbcd In 8131 3(g) whenever.(i) The State designates or has dcslg natcd uses that do not Include the uses tpcclhed InSCCIIO~lOI(a)(Z) of the Act.

or(2) The Stale wlshcs torcmovc adcslgnatcd use that 1sspcclficd In secllon 101(a)(?) of the Act or toadopt subcatcgw~es of uses spcclltcd In scctlon 101(a)(2) of the Act which rcqulrc less slringcnl crrtcrla. (k) AState isnot rcqulrcd toconduct a UIC’attalnablllty analj.\ls under this rcgu1.1t1onuhsncbcr dcblgnatlng uses which ~rtiludc ~ho\c ~pcctftcd In ,cclron 11)1(.1)(?) of the ACI
gl31.11 Criteria. (.I) Inclusion of pd~uronfs (I)Sratcs muIt adopt those water qual- ~th crltcrla that protect the dcslgnatcd

use Such crltcrla must bcbased onsound tclcntltic rationale and must contain suff”- ixnt paramclcrs or cons(Itucnts to proICCIthe dcslgnatcd use For waters uith multlplc USCdcslgnatcons. the crltcrla \hJll rupp)rt the most xnsltlvc use (2) Totrt po/luluntr Slalcs mu31 rc- \IC* urltcr ~uJIII) d.iLi and informalion
on (jllrchargcs to Idcntlfj rpccltic uatcr \Mnilc\ uhcrc ti,x\c pollutant> may bcad- \cr\cl) allccllnp uJtcr qu.1111yor the attdlnmcnt of the dcblgnatcd uatcr USCor uhcrc the Icvcls of IONIC’pollutants arc at .IIc\cl IOwarrant concern and must adopt crltcrld for such 10x1~pollutants appl~cablc to rhc uatcr hod) \ufTiclcnt IOprotect tbc dc\lgna\cd ux Whcrc ;1State adopt\
n.Irr41I\c crilcri3 for toxic pollulants lo prvtcct drblgndlcd ux>. the Stcl~c must praldc Inrormalron Idcntif!ing the mcthtJ b> uhlch the SUIC Intends to regulate pjlnt c~)urccdl\chsrgcx of IOXICpollutants (III *dtcr qu,rl~t! Ilmltcd xgmcnts based
on tuch n.irrdtI\c crlterld Such information rn.1) bc lncludcd aspdrt of the stand.ird\ or mu) bc Included In documents gcncrdtcd b:,the Stare In rcsponsc to the
U’drcr Qua111) I’lJnnlnp and Vanagc- ~rlcnt Rcgul.illon\ (JO Cl-R p.irt 35) (b) I-orm ofcrltcrI;I Incstabllshing crltcrt.1. Sla~cx should

(2) k\l.ihll\h nJrratl\c L‘rllcrIJ or critc11.1b.l\cJ upon blun~~~nltorlng methods whcrc numcrlcal crltcrla cannol bccstab 

### Subpart C-Procedures for Review lashed or IOsupplement numcTxal crllc- 

### and Revision of Water Quality rla 

### Standards $131.12 Antidegradrtion policy. (a) The State shall develop and adopt a statcwldc antldcgradatlon pol~cj and Identify the methods for Implcmcntmg such polxy pursuant to ttus subpart The antldcgradallon policy and implcmcntatlon methods shall. atammlmum. bcconmtcnt ulth the following (I )Elrlbtlng Instrcarn ualcr ux\ dnd Ihc Icbcl ofwater qu~l11) nscss>Jry lo protcct the erlstlng usessh.tll bcmalntalnrd and protected. $131.20 Stat review 

### ld revision of water quality standards.

(2) Where the quality of the waters cxcccd lcvcls necessary to support propagation of fish. shellfish. and wildlife and rccrca(ion Inand on the water. that quality shall bc maintained and protected unless the State finds, after full satisfaction of the Intcrgovcrnmcntal coordination and public participation provlsrons of the State’s continuing planning process, that Jlloulng lower uatcr quality isncccssarj

10 .iccommodatc impurlunl cconomrc or XKI.II dcvclopmcnt In the rlrca In uhlch the waters arc located In .IllouInp \uch dcgrJd.iliun or loticr ullcr qu~11ly. the SI~IC shall absurc \ratcr quality adcqualc to protect existing usesfully Further. the State shall assure that there shall bc achlcvcd the highest statutory and rcgulatory rcqulrcmcnts for all new and cxlstlng pomt sources and all cat-ctTcctlvc and rcasonablc bcs~ managcmcnl practlccs for nonpoinl source control (a) Store review. The State shall from time IO time, but at least once every three years. hold public hearings for the purposeof rcvicwrng applicable water quality standards and, asapproprlatc. modifying Jnd adopting standards Any water body xgmcnt with uatcr qudllt) standards that donot rncludc the usesspccificd Insection 101(a)(?) of the Act shall bcrc-cxamincd cbcry three years IOdetermine if any new Information has become avarlablc If such
new Information indicates that the uscs specified In section 101(a)(2) of the Act

are attainable, the State shall revise IIS standards accordingly. Procedures States establish for ldcntrfylng and rcvrcwlng water bodies for rcvxw should beincorporated Into their Continuing Planning Pr@

ccss (b) Publrc parrtcrpa/ron The State \hall hold apublic hearing fur the purpose oT re~xuing water quality standards, In accordance with provIsIons of State law, EPA’s water quallty management rcgula- (ion (40 CFR 130.3(b)(6)) and public partlclpation regulation (40 CFR part 25) The proposed uatcr quality standards revision and supportrng analysts bhall bcmade available IOthe public prior I\)\hc hearing

(3) Where high qualit) udtrrs c‘onstlIUIC an outstanding National resource, such as uatcrs of Katlonal and Slate parks and wlldllfr refuges and waters of cxccplronal rcctcalWUl or ecological slgnificance. that water quality shall be malntalncd and protected (4) In those casts uhcrc potential water quahty Impairment associated with a thermal discharge I) lnvolvcd. the antldcpradatlon pol~c) and Implcmcntlng method shall bc consistent ulth xctlon 3I6 of thc ACI (c) Subntrrrol ro EPA The State shall \ubmlt the results of the review. any sup porting analysis for the USCattainability analysis. the methodologies used for siteipccific crltcria development. any general polrcrcs appllcablc IOwaler qua111ystandards and any rcvlslons of the standards to the Rcgronal Admlnlstrator for review and approval, within 30days of the final State action to adopt and ccrtily the rcblscd standard. or if norcvIslons arc made JSaresult of the rcvicu. ulthln 30days of the complclion of the rcvlcu

$131.13 General policies. $131.21 EPA rebien andapproval of water quality standards.

Sl;l~c\ may. JI thclr dlscrctlon. Include Inthclr SUIC brandards. pol~c~csgcncrall) JlTcctlng thclr appllcatlon and Implcrncntdtton. such as mixing lone\. IOU flous and variances Such pul~c~csarc subJrc1 IO f’P4 rcbleu Jnd approral la) After the Stale submits IIS officially Jdopted rcvlslons. the Rcgronal Admtnlstrator shall either (I) Notify the SIJIC ulthln 60 days that the rcvislons arc approved. or (2) Notify the State uithln 90 days that the revlslons arc dlsdpprovcd Such‘~~oI~~~~IIwI of dlbapproval shall spcc~f)

the changes nccdcd IOashurc compllancc with the rcqulrcmcntb UCthe Acl Andthis rcgulatlon. and \h.lll caplaIn why the State st.lndJrd I\ nol In compllancc wllh such rcquircmcnls Any new or rcvlscd State standard muhr be accompanxd by

some type of supportIng analysis (b) The Rcglonal Administrator’s ap proval or disapproval of a State water quality standard shall bebased onthe rcqulrcmcntr of the Act as dcscrlbcd in $§I31 5.and I31 6 (c) A SI~IC water qual~\y standard rcmains InetTcct. cvcn though dlbapprovcd by EPA. unlll rhc Srarc rcvlscs 11or EPA promulgates a rule that \upcrscdcs the State water qual~t) \tsndard (d) F-P,\ Ahall. at Icas~ annually. pub Il\h InIhe 1’1IN~41 KI.~;ISTI.H anotice of approvals under this tcclion
$131.22 EPA promulgation of waler quality standards. (J) II the SL,IIC docb not adopt the change\ \pccllled by rhc RegIonal Admlnls;lrator ullhln YOJ.I)\ Jftcr notllicarion of the Regional Admlnlstrator’b dlsapproval. the Admlnlstrator shall promptly propose and promulgJ\c such sranddrd (b) The Admlnlsrrator ma) also propose and promulgate a regulation, appticable IOone or more Stales, setting forth

anew or rcvlscd standard upon dctcrminmg such ;L>\andArd 15ncccs\ar) 10meet the rcqulrcmcnrs of the Act (c) In promulguling w.ilcr qu.~l~[y \t.ind.irdb. the Adm!nl~~r.~!ur 15,ubJcit to the

same pollc~c\. proccdurcb. anuljxs. and public pdrtl~lp.~rlun rsqu~remcnl\ cblablashed TarSt.t[c> 111

thcx rcgularlons.

Subpart L)- Frdcrrll) Prunlulgnted Water Quality Standards

5131.31 Arizona. (a) Arrlclc 6.Part 2ISamended asfat. IOU\ (I)Keg O-24 II\hall read 004.006 4.I

006-o 10 5

006.0 12

I 5.?

lo-0 10 0 57

050-060

030450 30450 030.050 030.050

020-030 020-030

020.030 020.030

050-a60 0-a 0

ocic-050 ocic-050

B The above standards arc mrcndcd topru~cil the bcncliclal usesof rhc named water, BCC.IUW rcgulatlon ol nllrarcs and phosphates alone ma) notbeadcquarc toprotect walers from eutrophIca.

~mn. nosubstance shall beadded IOany surface water whtch produces aquatic growth 10IhcCXIC~I thal wch growths CICPM apublic nutsancc or I”- lcrfcrcncc ulth bcncliclal usesofrhcuatcr dchncd .~nddcugn.~~cd I” Rcg O-2-65 (2) Reg. 6-2-6 IOSubparts Aand 13arc amended 10include Reg. 6-2-6.1 I In SCrlcs w\lh Rcgs 6-2-6.6. 6-2-6.7 and 6-2. 6.X.
$131.33 (Resertedl

$131.34 [Reserved)

8131.35 Coltillc Confederated Tribes Indian Reservation.
The water quality standards applxablc 10Ihe waters wllhin the Colv~llc Indian Rcscrvallon. located in the Slate of WashIngton. (a) tloc~kground. (I) II ISthe purpose of these Federal water quality standards IOprcscrlbc rnlnlmum water quality requirements for the surface waters localed within the exkrlar boundaries ofthe Colvillc Indian RcserbaIIon IO ensure complldnce ulth xcllon 303(c) of the Clean Wdtcr ACI (2) 7he (‘ol\~llc (onlcdcr~lcd Trlbc\ have aprlm.rr) Intcrc\l 111 [hc pr~rtccllon. conlrol. conxrv.~lion. wild uI~Ii~.iI~on 01 the waler rcsourccb of the Colv~llc IndlJn Rcscrvatlon Water qua111) standards have been enacted into lrlbal law by the Colv~llc Business Council of rhe Confcdcrated Trlbcs of the Colv~llc Reservation.

as the Colv~llc Waler Qual11y Standards ,AcI. CTC Tlrlc 33(Rc\~~lurlon So I984- 52h (August h. lY84) .I\ .Imcndcd bj Kc+ ulurlon ho. 1985-20 (J.lnuar! 18. 1985)) (b) %rrrrof,r (‘o\crzd The pro\ IsIons 

### oithcsc water qu.~lr\! \tJnd,lrdb bhull ap ply IOall surface waler\ wIthIn the cxlcrlor boundarIes of the ~‘ol\~llc Indian Rcscrvation

(I) The water qua111) standards in this \cc!lon \h;ill bc uxd b! the Rcglon.il Ad. mlnl,trlllor for c\t.lbll>hlng an? waler qu.~llt) baxd h~[lon.ll t’\)lIuldnt 111~. LhJrgc ~IiiiiinJrIori S)sIcm Pcrmil (Sl’1)t.S) Carpolril \,,urcch on lhc Cal- ~IIIc Confedcratcd Trlbcb Rcxr\arlon (2) In conJuncrlon ulth the Ibbuance of xc\Ion 402 or xc‘llon 404 permits. the Regional Admlnlstra[or m.1) dcsignatc mlxlng zones Inthe uatcrh of rhc Lnlrcd Stales on the rcscrvallon on a casc-bycase basis. The size of buch InixIng 7oncs Andthe III-70~ uatcr qu,lllr) insuch mixIng zones hhall bcc‘on\lzlcnt ulth the uppllcablc proccdurcb Jnd guldcllncs In t:l’A’s Waler QU;IIII~ SI.lndard\ tiandbook and rhc Tcshnlcal Support Document for Wstcr Qu.~l~rh tj.iscd To~lch (‘onrr0l (3) Amcndmcnth 10the xcrlon JI the rcqucsl of the l.rlbc \haII proceed In the following manner (I) The requested amendmenr shall tirst bc duly approved b) the Confederated Tribes of the Colv~llc Rcszrvarlon (and so ccrtlficd by the Tribe\ l.cpal Counsel) Jnd submlttcd 10the Kcplon,ll Administrator (II) The rcqucstcd amcndmcnl shall bc rcvlcucd by EPA (and b! the Srarc of W.~hhlngt~~n. I( Ihc .ILII,~~Iu,~uld .~tPcc~;i boundar) uatcr) (III) If dccmcd In iompll,~ncc ulrh the C’lc,in Warcr A~I. EPA will propose and promulgate .IIIapproprl.ltc ch;lnpc 10thl> \cition(4) Amendment of this section at EPA’s \n\t1a11vc w1l\ fol1ou consuba\ion with the Tr~bc and other appropriate enliIICS Such amcndmcnts wrll then follow normal EPA rulemaking procedures. (5) All other applicable provisions of this part 131 shall apply on the Colville Confcdcratcd Tribes Reservation. Special attention should be paid 10 §$l31.6, 131 IO. 131 II and I31 20faranyamendmen1 10rhcsc sidndards 1ubcinitiated by the Tribe (6) All numeric crrtcri(1 contamed in thts scclton apply at all in-stream Row ra1cs greater than or equal IOthe Bow ra1ccalcula1cd asthe minimum ‘IconsccUIIVCday average flow with a recurrence frequency of once in ten years (7QIO); narrative crtlcru ( 5131 35(c)(3)) apply regardless of Row. The 7010 low flow shall becalculated using methods recommended by the US Geological Survey. (d) L)efinlf~ons (I )“Acute ~oxrcr~y” means adclcterious response (cg

. morrality. disoricnta1ion. immobilization) 10a stimulus observed in 96 hours or Icss (2) “Background conditions” means the btological. chcmisal. and physical condi1ions of a waler body, upr1rcam from the point or non-point source discharge under considcrarion Background sampling localton in an enforcement action will be upsrrcam from the point of discharge, but no1 upsrrcam from other inflows If several discharges 10any waler tiy cxisl. and an cnforccmcni ac1ion IS bcmg taken for possible viola1rons IOthe s1andards. background samphng will be undertaken immcdialcly upstream from each discharge (3) “Ccrcmonial and Rcl~g~ous waler USC” means ~CIIVI~ICS involving tradilional Ndlivc American spirrlual practices which involve. among o1hcr things, primary (direct) conlact wi1h waler. (4) “Chronic Toxicity” means the lowestconccnlrallon 0Jaconsliluenl causing observable ctfcc~s (Ic..considcrmg IcthalII~. growth. reduced reproduc1ion. etc.)

over arclalrvcly long period of irmc. usually a28day ICSIpcrmd for small fish 1cs1 SpcCJCS (5) “~‘ounc11” or “Tribal Council” mcdns 1hc Colviilc Business Council of the Colv~llc Confederated Tribes. (6) “Gcomctric mean” means the “n1h” rwt of .Iproduci of “n” factors (7) “Mean retention time” means the 1imc obtained by dividing a reservoir’s

mean annual minimum 1otal storage by the non-zero 30day. ten-year low-flow from the reservoir. (8) “Mixing Zone” or “dilution zone”

means alimited area or volume of wa1cr where initial dilution of adischarge takes place; and where numeric water quality criteria can beexceeded but acu1cly 1oxic conditions arc prevented from occurring. (9) “pH” means the negative logarithm of 1hehydrogen ion concentration. (IO) “Primary contact recreation”

means activities where a person would have direct conlact with water to the point ofcomplete submergence, including bu1not limited 10skin diving, swimming, and water skiing. (I I) “Regional Administrator” means the Administrator of EPA’S Region X. (I2) “Rcserva1ion” means all land within the limits of the Colville Indian Reservation. esrablishcd on July 2. 1872 by Executive Order, prescnrly containing 1.389.000 acres more or less, and under the Jurisdiction of the United States governmen1. no1withstanding 1hcissuance of any patent, and including rightsof-way running through the reservation (I 3)“Secondary contact recreation”

means ac1ivitics where a person’s water contact would be limited 10the cx1cnt that bacterial infections of eyes. cars, respira1ory. or digcs1ivc systems or urogenital areas would normally beavoided (such

aswading or fishing). (14) “Surface water” means all water above thesurface of theground within the exterior boundaries of the Colville Indian Reservation including but not limited to lakes, ponds, reservoirs. artificial impoundmen1s. streams. rivers. springs, seeps and wetlands. (I5)“Tempcra1urc” means water 1empcraturc expressed in Centigrade degrees (0.(16) “To1al dissolved solids” (TDS)

means the total filterable residue that passesthrough astandard glass fiber filter disk and remains after evaporation and drying 10acons1an1 weigh1 at I80 degrees C. it isconsidered IObeameasure of the dissolved salt content of the water. (I7)“Toxicity” means acu1c and/or chronic toxicity. (18) “Tribe” or “Tribes” means the Colville Confederated Tribes. (19) “Turbidity” means 1hc clarily of water expressed asnephclomctric turbidiIYunits (NTU) and measured with acalibra1cd turbidimc1cr. (20) “Wildhfc habi1ar” means the waters and surrounding land areas of the Reservation used by fish, other aquatic life and wildlife a1any stage of their life history or activity. (c) General comldemtons. The following general guIdelines shall apply IOthe water quality s1andards and classiticalrons set forth in the usedcsignalion Sections. (1)Classrficarron Boundarm. At the boundary bctwccn waters of ditTcrcn1 classifications. the waler qualrry slandards for the higher c\assihcaGon %ha\\ prevail. (2) Anridrgradarton Policy. This an1idcgradation policy shall beapplicable 10 all surface waters of the Reservation. (i) Existing ins1rcam water uses and the lcvcl ofwater qualily necessary 10pro 1~1 the exis1ing uses shall bc maintained and protcc1r.d. (;I) Where the qualily of the waters cxcccds lcvcls necessary 10suppor1 propagation of fish, shellfish. and wildlife and rccrcation in and on the water, thar quality shall be maintained and protected unless \he Regiona\ Adminis1ra1ar finds, after full satisfaction of the inter-govcrnmcnlal coordination and public participation provisions of the Tribes’ contrnuing planning process, that allowing lower water quality is necessary 10 accommodale important economic or social dcvclopmcnt in the
area in which the walers arc located. In allowing such degradation or lower water quality, the Regional Administrator shall

assure water quality adequate to protect existing usesfully. Further. the Regional Administralor shall assure 1ha1 1herc shall be achieved the highest statutory and regulatory rcquircmcn1s for all new and existing poinr sources and all costcfTectivc and reasonable best managemen1 practices for nonpoinl source con1101. (Iii) Where high quality walers are idcn1itied as constituting an outstanding nalional or reservation resource. such as waters withm areas designated as unique water quality management areas and wa1crso1hcrwisc of cxccp1ional rccrcalional

or ecological significance. and arc designated asspecial resource waters. rhat water quality shall be maintained and protected(iv) In those casts whcrc potcntral watcr quality rmparrmcnt assoc~atcd with a thermal discharge 1srnvolvcd. thus antrdcgradatron polrcy‘s rmplcmentrng method shall bc consrstcnt with scctron 316 of the Clean Water Act. (3) ArJ!hefI’c Qualifies. All waters within the Rcscrvatron. including those within mrxrng zones. shall be free from substances. attrrbutablc IO wastewater discharges or other pol\utant sources, that: (I) Scttlc to form obJectronablc dcposits.(II) Float asdebris. scum. oil. or other maltcr forming nuisances; (rir) Produce obJccrronablc color, odor, taste. or turbidity, (IV) Cause InJury to, arc toxic to. or product advcrsc physiological rcsponscs in humans, animals, or plants; or (v) Produce undcsrrablc or nuisance aquatic life (4) Anolyr~col Mrrhods (i) The analytrca\ testing methods used to mcasurc or othcrwrsc evaluate compliance with water quality standards shall IO the extent practrcablc. bc in accordance with the “Guldclrncs Establishing Test Proccdurcs for the Analysis of Pollutants” (40 CFR part 136) When atesting mcthod ISnot avarlablc fur a particular sub stance, the most recent edition of “Standard Methods for the Examination of Water and Wastcwatcr” (publtshcd by the American Publrc ticalth Association. American Water Works Associatron. and the Water Pollutron Control Fcdcration) and other or superseding mcth& published and/or approved by EPA shall be used. (f) General Waler Use und Crileria Classes The followrng criteria shall apply tothe various classes ofsurface waters on the Colv~llc Indian Rcscrvation: [I)Gloss I ~Er~roord~nary~- (i) Dcsrgnorcd uses. The designated
uses include. but are not limited to, the followrng (A) Water supply (domestrc. industrial, agricultural). (B) Stock watcrmg. (C) Frshand xhcllfish. Salmonid migration, rearing. spawnmg. and harvcstrng. other tish mrgr.rtran. rearing. spawning, and harvcstlng (D) Wrldlrl-c habitat (E) Ccrcmonlal and rcltgious water
USC (F) Rccrcatton (prrmsry contact rccrcatron, sport fishing. boating and acsthctrc cn~oymcnt). (G) Commerce and navigation. (ii) Wolrr quolily CIIICIrU. (A) Bacteriological Criteria-The gco metric mean or the cntcrococci bacteria dcnsrties in samples taken over a 30 day period shall not exceed 8per I00 mrllrlitcrs. norshall any single sample exceed an cntcrococci density of 35 per I00 milliliters. Thcsc Irmrts arc calculated as the geometric mean of the collected samples approximately equally spaced over athrrty day period. (B) Dissolved oxygen-The dissolved oxygen shall exceed 9.5 mg,/l. (C) Total dissolved gas-conccntratrons shall not exceed 1IO percent of the saturation value for gases attheextsting atmospheric and hydrostaticpressures at any poinl of sample Collcclion. (D) Temperature-shall not cxcccd lb.0 degrees C due to human activitrcs. Temperature increases shall not, at an) time, exceed t=23/(T+S). (I) When natural condrttons exceed 16.0 degrees C, no temperature mcrcasc WII[bcallowed whrch will raise the rcccrvmgwater by greater than 0.3 dcgrccs C (2) For purposes hereof, “t” reprcscnts the permissive temperature change across the dilution zone; and “T” represents the highest cxrsting temperature Inthuswater classrfication outsrdc ofany dilution ronc (3) Provided that temperature Increase resulting from nonpoint source activities shall not exceed 2.8 degrees C. and the maximum water temperature shall not cxcccd 10.3 degrees C (E) pH shall bewithin the range of 65 to 8.5 with a human-caused variation of less than 0.2 units. (F) Turbrdrty shall not exceed 5NTU

over bra&ground turbidity when the background turbidity is 50 NTU or less. or have more than a IOpercent mcrcasc rn turbidity when the background turbidity ismore than 50 NTU. (Ci) Toxic. radioactive. nonconvcntiona\. or deleterious material concentrations shall bc lcsr than those o( publrc hca\th significance, or which may cause acute or chrontc toxic conditions tothe aquatic breta, or which may adversely affect dcsrgnatcd water uses. (2) Class II (Excellent).- (I) I)usrgnu(cJ r~~c.~ ‘Ihc dcsrgnatcd

uses rncludc but .rrc n,)t I~m~trd to. the following. (A) Water suppI) (d,lmcstrc. rndustrral. agrrcultural) (8) Stock udtcrrnp (C) Frsh and shclltish S.rlmontd mrgratron, rearing. sp;run~np. and harvcstrnp. other tish migration. rcarrng. spawning, and harvesting; crayfish rearing. rpawnrng. and harvesting (D) Wildlife habItAt (1:~CcrernoniJl and rcllgrous water USC (F) Rccrcatron (primary contact rccrcation. sport fishing. b).rtrng .rnd acsthctrs cn)oymenl). (G) Commerce and n.rvip~tmn 1I,) N’cl/rr qlidrrl “rllt’rfd (A) Bactcrralogrcal Crrtcrra-The gcllmetric mean of the cntcrococcr bactcrra dcnsrtrcs rnsamples tahcn over a30 day pcrmd shall not cxcccd 16/1OO ml. nor shall any s~r,glc ~~mplc crcccd an cntcrcr cocci Jcnblt) of 75 Fr I00 mrllrlitcrs Thcsc Irmrts arc calculdtcd .~sthe geomctrrc mean of the collcctcd s.rmplcs approxlmatcly cqu.tll~ sp~vcd uvcr a thirty day period (8) Drssolvcd oxygen-The drssolvcd oxygen shall cacccd 8Umg;l (C) Total dissolved gas-cunccntraIrons shall not exceed IIO percent of the saturation value for gases 31the cxrstrng atmosphcrrc and hydrostatrc prcssurcs at any point of s3mplc collectron (D) Temperature-shall not exceed 18.0 degrees C due to human actrvitrcs. Temperature increases shall not. at any time. cxcccd t=?K/(T t7) (I) When natural condrtruns cxcccd I8 degrees Cnotcmpcraturc Increase UIII bc allowed which WIIIraise the rcccrvrng water temperature by grcatcr than 03dcgrccs C (2) For purposes hereof. “t” represents the permissive tcmpcraturc change across the dilution zone; and “T” represents the highest existing temperature inthis water classification outside of any dilution zone (3) Provrdcd that tcmpcraturc rncrcasc resulting from non.point source activitrcs shall not cxcccd 2Xdcgrccs c‘. and the
maxrmum water tcmpcraturc shall notcxcccd I8 3degrees C (E) pti shJll bcwlthrn the r.rngc of 05 IO8.5 with a human-caused varratron al lessthan 0.5 unrts(f-) TurbIdIt) \hall not exceed 5 NTL

over background lurbldl1y when the background IurbldlI) IS50 \TU or less. or have more than a IO pcrcenl Increase In Iurbldltj when rhe background turbidity ISmore than SONTC; (G) TOXIC. radmactlvc. nonconvcntlonal. or dclcrcrlous maicrlal conccnIraIlons shall bc less than those of public health slgmticance. or which may cause aculc or chrunlc IUXIC‘condl1lons IO[he aqua11c bl01.1.or which n1.1)adbcrscly atiecl deslgn.ilcd u.ilcr ubeh (3) (‘lure III f(;md (I) Ikc~gnurrd UJCS The dehlgnarcd
uses Include bur Jre not IlmiIed 10.the following (A) U’JIer \uppl) (IndusIrlal. a8rlcuIIural) (B) SIock warering (C) Fish and shellfish. Salmonid migralion. rearing. spawning. and harvesting; orhcr fish mlgrarion. rearing. spawning. and harvcsrlng. craktish rc;irlng. spaunlng. and harvesting (D) Wlldllfc hablrar (E) Recreation (sccondarb conlacl recrealIon. sporl tishlng. bodllng and aesthetIccnla)mcnl) (F) Commerce Jnd naklgatlon (ii) H’arrr quolrry c‘rrfrrra (A) B.icIeriologlcal CrlIerla-The gee metric mean of Ihc cnIcrococcl bacteria denslllcs In samples taken over a 30day pcrmd shall nut exceed 33/100 ml. nor shall an! single sample exceed ancnlcroC‘OCCIden>10 of I50 per IO0 mllllll~crs Thcsc llrnlls are calculated asthe gcometrlc mean of rhc collecled samples approxlmarely equJll> spaced obcr a IhlrIy day period (B) Ulb\ul\ed oxbgcn

(C) TUIJI dl\\olbed 8~s concentraltons bhdll nutckcecd IIUperccni of Ihc saIuratwn value for gases aI rhe exlsting atme spheric and hydrosIatic pressures al any point of sample collection (D) Temperature shall not exceed 2I.O degrees C due IOhuman acllvitics. Tcmpcraturc increases shall not. at any time. exceed 1=34/(T+9). (I) When natural conditions exceed 21.Odegrees C no tcmpcraturc increase UIII beallowed which will raise the reccivlng water lempcrature bygreater than 0.3 degrees C. (2) For purposes hereof, “I” represents the permissive lcmpcraturc change across Ihe dilution zone. and “T” rcpresenIs the highest cxrsIin8 Icmpcraturc inthis water classification outside of any dilulion zone. (1) Provided that Iempcraturc increase resulIin8 from nonpoinI source activities shall not exceed 2.8 degrees C. and the maximum water tcmpcraturc shall not cxcccd 2I.3degrees C. (E) pH shall bewithin the range of 6.5 to I(5with a human-caused variation of lessthan 0.5 units. (F) Turbidity shall not exceed IONTU
over background turbidity when the back8round lurbldrty is 50 NTU or less. or have more than a20 percent Increase In turbidiry when the background turbidity ISmore than 50 NTU. (G) Toxic. radioactive. nonconvcntlonal. or deleterious material conccntrat~ons shall bc less Ihan those of public health sigmticancc. or which may cause acuIe or chronic IOXICconditions IOthe aquaclc blo[a. or which may adversely afl‘cct dcsignated water uses. (4) Class IV (Fair)- (i) Designated uses. The designated
uses include but are noI llmitcd IO. the following (A) Waler supply (Induslrlal). (B) Stock walering (C) Fish (salmonld and other tirh mlgraIlon). (D) Recreation (secondary contact rccrcalion. sport fishing, boating and acsIhcIicenjoyment). (E) Commerce and navigation. (ii) Wafer qualily crifcria (A) Dissolved oxygen. raaymd I 401 30

(B) Total dissolved gds-concentra- (Ions shall noI exceed IIOpercent of the saturallon value for gases at the exlslrng atmosphcrlc and h!drosIaIlc pressures at any point of sample colleclion (C) TempcraIurc shall no1exceed 22.0 degrees C due IOhuman ~LXIVIIICS Tcmpcrature increases shall noI. aI any Ilmc. cxcccd 1=2O/(T+2) (/) When natural condlIlons cxcccd 22.0 degrees C. no temperature Increase will beallowed which will raise the rcceivingwater Icmpcralure by8reaIcr than 0.3 degrees C (2) For purposes hereof. “I” represents the permissive temperature change across Ihe dilution zone; and “T” represents the highcsl cxlsling Iemperalurc Inthis uaIer classiticarion outsIde ofan) dlluIion zone. (D) pH shall beullhln the range of 6.5 IO9.0 with a human-caused varlatlon of lessthan 0.5 units (E) Turbidity shall no1exceed IONTU

over background IurbidlIy when the background turbidity is SOSTU or less, or have more Ihan a 20 percenr increase In Iurbidity when Ihc background 1urbidiIy ismore than 50 NTU (F) Toxic. radioactlbc. nonconvenlional, or dclercrlous material concentrations shall bc less than those of public health slgnlticancc. or which ma) cause acute or chronic toxic condlIlons tothe aquuric blala, or which ma) adbcrsel! aHect dcsignaIcd waler uses (5) Lake Class (I) Designorcd USES The dcslgnarcd

uses include but arc not limited IO. the following, (A) Water suppI) (domebtlc. Industrial. agricullural) (B) Stock watering (C) Fish and shellfish- Salmomd migralion, rearing, spauning. and harvesting; other fish migration. rearing. spawning. and harvcsling. crahtish rearing. spawnlng. and har\esllng (0) U’lldllfe hablrat (E) Ccrcmonlal and rellglous waler USC(F) Recreation (prtmary contact recrcation. sport fishing. boattng and aesthetic cn)oymcnl). (G) Commcrcc and navtgatton. (ii) Worrr quolrfy crirerio. (A) Bacteriological Criteria. The gco metric mean of the cntcrococci bacteria densities in samples taken over a 30day period shall not cxcccd 33/100 ml. nor shall any single sample cxcccd ancntcrococci density of IS0 per 100 milliliters. Thcsc limits are calculated asthe gcomctric mean of the collcctcd samples approximately equally spaced over a thtrty day period. (8) Dissolved oxygen-no measurable dccrcasc from natural condittons. (C) Total dissolved gas concentrations shall notcxcccd IIOpcrccnt ofthe saturation value for gases at the existing atmo spheric and hydrostatic pressures at any point of sample collection. (D) Temperature-no mcasurablc change from natural conditions. (E) pH-no mcasurablc change from natural conditions (F) Turbidity shall not cxcccd 5NTU
over natural conditions. (G) Toxic. radioactive. nonconvcntional. or deleterious material concentrations shall belessthan those which may affect public health. the natural aquatic cnvironmcnt. or the dcstrablltty of the water for any USC

(i) General characfmsftcJ Thcsc arc fresh or saline waters which comprlsc a special and unique resource tothe Rcscrvation. Water quality of this class will be varied and unique asdctcrmtncd by the Regional Administrator in cooperation with the Tribes. (ii) Drsignafed uses. The designated

uses include. but arc not limited to, the following: (A) Wildhfc habitat (B) Natural foodchain matntcnancc. (iii) Water quality criteria. (A) Entcrococci bacteria dcnsittcs shall not cxcccd naturAl conditions (B) Dissolved oxygen-shall not show any measurable decrease from natural conditions. (C)Total dissolved gas shall not vary from natural condlrlons. (D) Temperature-shall not show any measurable change from natural condi- [tons (E) pH shall not show any mcasurablc change from natural conditions. (F) Scttlcablc solids shall not show any change from natural conditions. (G) Turbidity shall not cxcccd 5NTL
over natural conditions. (H) Toxic. radioactive, or dclctcrious material concentrations shall not cxcccd those found under natural conditions. (g) General Classificafions. Gcncral classifications applying tovarious surface watcrbodics not specifically classified undcr 5I3I.35(h) arc asfollows. (I) All surface waters that arc tributaries to Class I waters arc classlhcd Class I. unless otherwise classified. (2) Except for those specifically classtficd othcrwisc. all lakes with existing avcrage concentrations less than 2000 mg/L TDS and their feeder streams onthe Colvillc Indian Reservation arc classified as Lake Class and Class I, rcspcctivcly. (3) All lakes on the Colvillc Indian Reservation with existing avcragc conccntrations of TDS equal to or cxcccding 2000 mg/L and their fccdcr streams arc classified as Lake Class and Class I rcspcctivcly unless specifically classified otherwise. (4) All reservoirs with a mean dctcnlion time of greater than I5 days arc classified Lake Class. (5) All reservoirs with a mean dctcntlon ttmc of I5 days or less arc classtficd the same as the rlvcr section In which they arc located. (6) All rcscrvoirs established on prc-cxisting lakes arc classified as Lake Class. (7) All wetlands arc assigned IO the Special Resource Water Class. (8) All other waters not specifically assigned toaclassificatton ofthe rcscrvation

arc classilicd asClass II. (h) Specific Classificarions Specific classifications for surface waters of the Colvillc Indian Rcscrvatton arc asfollows cagar Creek Coral* Creek

### cursI classIII cm9II LC
LC LC LC LC LC LC 

### LC LC LC
LC 

### LC LC LC LC LC LC SRW SRW SRW LC LC LC LC LC LC SRW 9131.36 Toxics criteria for those stales

not complying with Clean Water Act section 303(c)(2)(B).

(a) Scope. This scctlon ISnot agcncral promulgation of the scctlon 304(a) crltcria for priority toxic pollutants but ISrcstrictcd to specific pollutants in spcclfic States (b) (I)EPA’s Secrron SM(a/ Curma /or Prrorily Toxic PolluranrsA

FRESHUATER SALTUATER

I

# I Criterion Criterion Criterion Criterion ' For Consuption of:

I Maxim Continuous (I) COnPOUNO US Cor~.d Conc.d I Maxinun Uatcr 6 Organi-, Conc.d Organi- only Mu&w

, (uQ/L) (W/L)

, (u!J/L) (w/L) (WC)

, Bl 02 I Cl 01 02

1 Antimony 7440360 ; I I I I 14 a 4300 a

2 Arsenic 7440382 ; 360 m 190m I 69 m Mm 1 0.018 a,b,c 0.14 a,b,c

3 Bcrylliun 7440417 ; I I

, I n n

4 Ca&iun 7440439 ; 3.9 c,m 1.1 c,m 1 &3 m 9.3 m 1 n n
Sa Chromiun (111) 16065831 1 1700 c,m 210 e,m 1 I I " n

b Chraniun (VI) 18540299 ! 16 m 11 m ! 1100 m 50m 1 n n

6 Copper 7440508 ; 18 c,m 12 c,m 1 2.9 m 2.9 m 1

7 Lead 7439921 1 82 

### c,ra 3.2 c,m I 220 m 8.5 m ) n n

8 Mercury 7439976 1 2.4 m 0.012 i I 2.1 m 0.025 i I 0.14 0.15

9 Nickel 7440020 I 1400 c,m 160 c,m 1 7Sm 8.3 m I 610 a 4600 a

10 Sclcniun 7782492 ! 20 5 ! 300 m 71m I n n

11 SiLvcr 7440224 ; 4.1 c,m I 2.3 m , I I

12 Thalliun 7440280 ) I 

### I

, , 1.7 a 6.3 a

13 Zinc 7440666 ; 120 c,m 110 c,m ) 95m 84m I

1C Cyanide 57125 1 22 5.2 I I 1 1 I 700 a 220000 a,j

15 Asbestos 1332214 ! I ! 7.000.000 fibers/L k

16 2,3,7,8-TCOO (Dlorln) 1746016 ; r I ~0.000000013 c 0.00000001c c

17 Acroltln 107028 ; I I I

, 320 780

18 Acrylonlfrile 107131 1 I I 0.059 a,c 0.66 a.c

19 Benzene 71432 1 I I 1.2 a,c 71 arc

20 Bromoform 75252 1 I I 4.3 a.c 360 c,c

21 Carbon Tetrachlorick 56235 ; I I 0.25 a,c 4.4 a,c

22 Chlorobcnzcnc 108907; I I I I 6800 21000 

## l,j

23 ChLorodibromawthane 124681 ; I I 0.41 arc 34 a,c

24 ChLoroethane 75003 1 I 

### I I I

25 2-Chloroethvlviny\ Ether 110758 !
, I

26 Chloroform 67663 ; I I 5.7 a,c 470 a,c

27 DichLorobr-thane 75274 ; I I 0.27 a,t 22 a,cI B I

I C I D

FRESHYATER I SALTYATER I :li-s :iik for"cZizA)

Criterion Criterion I Criterion Criterion I For Consqtion of: Maximan Continuous Maxima Continuous I Uater L Organism (I) COMPOUND CAS Conc.d Conc.d ' Conc.d Ctmc.d Organism MlY Nuber

, (W/L) (WI/L) 1 (W/L) (W/L) 1 (W/L) tug/L)

I 61 82 I Cl 12 I Dl 02

28 l,l-Dichloroethane 75343 ; I I I

29 1,2-Dichloroethw 107062 ; I I 0.38 a,c W a,c

30 l,l-Dichloroethylene 75354 ; I I I I 0.057 a,c 3.2 a,c

31 1,2-Dichloropropane 78875 ; I I I I

32 1.3-Dichloroorocwlene 542756 ! I I L 10 a 1700 a

33 Ethylbenzene 100414 ; I I I

, 3100 a 29000 a

34 Methyl Branlde 74839 ; I I I I 48 a 4000 a

35 Methyl Chloride 74873 ; 1 I I I " n

36 Wethylen Chloride 75092 ; I I

, t 4.7 a,c 1600 a,c

37 1.1.2.2.TetrachLoroethane 79345 1 I I 0.17 a.c 11 a,c

38 Tetrachloroethylene 127184 f I I I 1 0.8 c 8.85 c

39 Toluene 108883 1 1 1 1 I 6800 a 200000 a

40 1,2-Trans-DichloroethyLene 156605 1 I 1 1 1

41 l,l,l-Trlchloroethan 71556 1 I I I I n "

42 1.1.2-Trichloroethsn 79005 ! I I 0.60 a.c 42 a,c

43 Trichloroethylene 79016 f I I 1 I 2.7 c 81 c

44 vinyl Chloride 75014 1 I I 2 c 525 c

45 2-Chlorophenol 95578 ; I 0 I I

46 2,4-Dichloro@wnol I 120832 ; I I I 93 a 790 a.1

47 2.4-Dimthvldwnol 105679 ! I I

48 2-Methyl-4.67Dinitrophenol 534521 ; 1

, I

, 13.4 765

49 2,4-Dinitrophenol 51285 1 I I I I 70 a 14000 a

50 2-Nltrophenol 88755 ; I I I !

51 4-wltrophenol 100027 ; I I I I

52 3-Methyl-4-ChloroMenol 59507 ! 1 1

53 Pentachlorophenol 87865 ; 20 f 13f 1 13 7.9 ; 0.28 a,c 8.2 a,c,J

54 Phenol 108952 1 I I 1 I 21000 a 4600000 a,~

55 2,4,6-Trichlorophenol a8062; I I I I 2.1 a,c 6.5 a,c

56 Acenaphthcn 83329 ; , I I IA

FRESHUATER I SALTUATER

' Criterion Criterion ' Criterion Criterion ' For Consugtion of: Maxisun Continuous Maxinun Continuous Uater 8 Organisms (I) COHPO UND CAS I cont. d Cmc.d I Conc.d Conc.d I Organisms only Nurkr 1 Bl

tug/L) tug/L) j Cl (W/L) tug/L) tug/L) fug/L) I 02 c2 1 Dl D2

57 Acenaphthylene 208968 ; I 1 I I

58 Anthracene 120127 ; I 1 I I 9600 a 110000 a

59 Benridine 92875 ; 1 1 I I 0.00012 a,c 0.00054 a,c

60 Benzo(a)Anthracene 56553 1 1 I 1 I 0.0028 c 0.031 c

61 Benzota)Pvrene 50328 ! 1 I 0.0028 c 0.031 c

62 Benzo(b)Fluoranthene 205W2 ; 1 1 1 I 0.0028 c 0.031 c

63 Benro(ghi)Perylm 191242 1 I 1 I 1

64 Eenzo(k)Fluoranthene 207089 ; I 1

, I 0.0028 c 0.031 c

65 Bis(Z-ChloroethoxyMethane 111911 ; I I I I

66 Bis(Z-ChloroethylJEther 111444 ! I I 0.031 a.c 1.4 a,c

67 Eis(Z-Chloroisopropyl)Ether 108601 t 1 I I I 1400 a 170000 a

68 Bis(Z-EthylhexyljPhthalate 117817 ; 1 I
, , 1.8 a,c 5.9 a,c

69 4-Bromophenyl Phenyl Ether 101553 ; 1 I 1 I

70 Eutylbenzyl Phthalate 85687 j 1 I

, , 71 2-Chloronachthalene 91587 ! 1 I

72 4-Chloroghenyl Phenyl Ether 7005723 I
, I

, ,
73 Chrysene 218019 I 1 I 1 1 0.0028 c 0.031 c

74 Dibenzo(a,h)Anthracene 53703 I

, I 1 1 0.0028 c 0.031 c

75 1,2-D~chlorobenzene 95501 1 1 1 1 I 2700 a 17000 a

76 1.3-Dichlorobmrene 541731 ! 1 1 400 2600

77 1,4-Dichlorobenrene 106467 1 1 I I 1 400 2600

78 3,3'-Dichlorobenridine 91941 ; I

, 1 I 0.04 a,c 0.077 a,c

79 Diethyl Phthalate 84662 1 I 1 I I 23000 a 120000 a

80 Dimethyl Phthalate 131113 1 I 1 I 1 313000 29ooooo

81 Di-n-Butyl Phthalstc 84742 ! I 1 2700 a 12000 a

82 2,4-Dinitrotoluene 121142 1 I I 1 I 0.11 c 9.1 c

83 2;6-Dinitrotoluene 606202 ; 1 I 1 I

84 Di-n-Octyl Phthalate 117840 ; 1 1 I

85 1,2-OiphenyLhydraz1ne 122667 ; I I 0.040 a,c 0.54 a.c

### A B C I D

FRESHUATER SALTUATER :lims Fi:k for"cir:iG&)

Criterion Criterion I Criterion Criterion For Consmption of: 

### Maximum Continuous ' Maxim!! Continuous Uater 8 

### Organitms (rl) COMPOUND CAS Conc.d Conc.d ' Conc.d Nuber

, (WL) (W/L)

, Bl 

### B2 j Cl Conc.d Organisms mlY (w/L) (WL) (ug/L) (W/L)

c2 Dl 

### D2

M Fluoranthm 206440; \ I 300 

### a 370 

### a

87 Fluorene 86737 ; I I 1

, 1300 a 14000 

### a

88 Hexach Iorobmzene 118741 ; I I I I 0.00075 

### a,c 0.00077 

### a,c

89 tiexachlorobutadiene 87683 1 I 1 I 0.44 

### a,c 50 

### a,c

90 Hexachlorocycloaentadiene 77474 1 I I 240 

### a 17000 

### a,;

91 Hexachloroethane 67721 I I I 1 1.9 

### a,c 8.9 

### a,c

92 Indmo(1,2,3-cd)Pyrene 193395 1 I I I I 3.0028 c 0.031 c

93 lso@lorone 78591 / I 1 1 ! 8.4 

### a,c 600a,c

94 Naphthalene 91203 1 I 1 I I

% Nitrobenzm 98953 ! I I 17 

### a 1900 a,j

96 N-Nltrosodimethylamine 62759 1 I I 0.00069 

### a,c 8.1 

### a,c

97 N-Nitrosodl-n-Pr~ylemlnc 621647 ; I I I I

98 N-Nitrosodiphenylamine 86306 ) I 1 I 5.0 

### a,c 16 

### a,c

W Phenanthrme 85018 ; I 1 I \

100 Pyrene 129000 I I I 960 

### a 11000 

### a

101 1,2,C-Trlchlorobenrene 120821 1 I I I I

102 Aldrln 309002 ; 39 I / 1.3 g I 0.00013 

### a,c 0.00014 

### a,c

'03 

### alpha-EM 3198&b / I I / 1 0.0039 

### a,c 0.013 

### a,c

104 beta-EHC 319857 I I I 3.014 

### a,c 0.046 

### a,c

105 gm-BHC 58899 ! 2s 0.08 g ! 0.16 g \ 0.019 c 0.063 c

106 dette-BHC 319868 ( I

, \ 1

107 Chlordane 57749 j 2.4 g 0.0043 g ; 0.09 g 0.004 g ; 0.00057 

### a,c 0.00059 

### a,c

108 4-C'-DDT 50293 I 1.1 g 0.001 g ; 0.13 g 0.001 g ; 0.00059 

### a,c 0.00059 

### a,c

109 C,C'-DDE 72559 ; I I 0.00059 

### a,c 0.00059 

### a,c

110 6.4'.DOD 72548 ! I I 0.00083 

### a.c 0.00084 

### a,c

111 Dleldrin 60571 1 2.5 g 0.0019 g 1 0.71 g 0.0019 g ; 0.00014 

### a,c 0.00014 

### a,c

112 

### alpha-Endosulfan 959988 ; 0.22 g 0.056 g ; 0.034 g 0.0087 g ; 0.93 

### a 2.0 

### a

113 beta-Endosulfan 33213659 1 0.22 g 0.056 g 1 0.034 g 0.0087 g I 0.93 

### a 2.0 

### a

# i B C I I D

FRESHWATER SALTUATER '

Criterion Criterion Criterion Criterion For Conarrption of: Maxinn Continuous 

### Maxinun Continwws Uater L OrgmisRI (1) COMPOUND CAS Conc.d

' 81 Conc.d Conc.d

j Cl Conc.d Orgmiw OnlY Nuder Lug/L) (LAB/L) (WL) (WI/L) ' 01 (W/L) (tJg/L) I B2 c2 I 02

114 Endosulfan Sulfate 1031078 ; I I 0.93 a 2.0 a

115 Endrin 72208 ; 0.18 g 0.0023 g ( 0.037 g 0.0023 g ; 0.76 a 0.81 a,j

116 Endrin Aldehyck 7421934 I I I I 0 0.76 

### a 0.81 

### a,j

117 Heptachlor 76448 ; 0.52 g 0.0038 g ; 0.053 g 0.0036 g I 0.00021 

### a,c 0.00021 

### a,c

118 HeDtachlor EDoxide 1024573 ! 0.52 g 0.0038 Q ! 0.053 9 0.0036 g ! 0.00010 

### 0.c 0.00011 a,c

119 PCB-1242 53469219 ; 0.014 g ; 0.03 g ; O.ODDO44 l,c 0.000045 

### a,c

120 PCB-1254 11097691 1 0.014 g ) 0.03 g ; 0.000044 

### a,c 0.000045 

### a,c

121 PCB-1221 11104282 1 0.014 g ; 0.03 g ; 0.000044 

### a,c 0.000045 

### a,c

122 PCB-1232 11141165 1 0.014 g ; 0.03 g ; 0.000044 

### a,c 0.000045 

### a,c

123 PCB-1248 12672296 ! 0.014 !I ! 0.03 9 ! 0.000044 a.c 0.000045 

### a,c

124 PCB-1260 11096825 ] 0.014 g ; 0.03 g ; 0.000044 a,c 0.000045 

### a,c

125 PCB-1016 12674112 1 0.014 g [ 0.03 g ; 0.000044 a,c 0.000045 

### a,c

126 Toxaphene 8001352 ; 0.73 0.0002 ; 0.21 0.0002 ; 0.00073 

### a,c 0.00075 a,c

Total No. of Crlterla (h) = 24 29 23 27 91 902 Crircrld rc\\rcd to reflect current .igcric) q l or RfD. as contained in the lntcgrdtcd Risk Information System (IRIS;) The fish ttssue bioconcentration factor (BCF) from the 1980criteria documcnts was rcralncd Inall casts b The crltcrla rcfcrh IOthe Inorganic lurrn onI> c‘Crltcrld Inthe m.Itrlx based oncarcinogcnlclI> (IO6 rl,k) For a risk level of IO‘.mobc Ihc dcclmal point Inthe matrix L.IIUC,mc pl.~cc IUthe right d t r1IcrI.i Marlmum Conccntratlon ((‘MC‘) = Ihe h\ghcsI concentration of a p)llul.~nl IO uhlch aqu~llc llfc can becxpod fur J short pcrmd of tlmc (l-hour JbcrJgc) ulthout dclcrcrlous cfTccts. Critcr1.1Conlinuous Concentration (CCC) = rhc hl8hcsI concenIratlon ofapollutant IO which ,I~UIIC hfc can bcexposed for an cxrcndcd pcrlod of tlmc (4 days) without dclctcrtoub clfcctb. ug/ L = micrograms per liter

c t’rcshwdtcr aquattc life criteria for Ihc\c rncIJl> arc cxprcsscd asa function of 1ut.11hardness (mg/L). and asafuncIton of Ihc pollutant’s waIcr cKcct ratio. WFK. .I\ dchncd In 5131 36(c) The cquJtlurl> Arc prubldcd In matrix at §I31 )6(b)(?) Valuch driplayed above In Ihc maIrlx corrcbpond toatotal hardness of 100 mg’l. and aw;IIcr cffcct ratlo of IOf f-rc\hwJIcr Jquat~c llfc criteria for pcnI~~<hlorophcnol arc cxprcsscd as a funcrlun of pti. and arc calculated asfollow\ 1’alucs dlspla!cd above In the maIrlx correspond IOapH of 78 (‘\iC = cxp( IOOS(pH) - 4830) CCC = cxpt IooS(pH) - 5290) g :\~U.IIIC llfc crltcrla for thcsc compuundb wcrc Ibbucd In 1980 uIilIzIng the 1980Gu~dcl~nc~ fur crltcria dcvclopmcnt. lhc .IC’UIC\.~IucI \ho,un Jrc final acute \JIUC\ (f.Ai) *hlch bk the I980 Gu,dclrncs arc Inslantancous values as contrasted with aCMC which isaone-hour average. h.These totals simply sum the critcrla ineach column. For aquatic life. there arc 30 priority toxic pollutants with some type of freshwater or saltwater. acute or chrome critcrla. For human health. there

arc 91priority toxic polluIants with elthcr “water + fish” or “fish only” criteria. Note that these totals count chromium as
one pollutant even though EPA hasdcvclaped crltcria based on IWOvalence states Inthe matrix. EPA hasassigned numbers Saand Sbtothe criteria for chromium to retlcct the fact that the hstof I26 priority toxic pollutants includes only asingle listIng for chrormum.
I.If the CCC for total mercury exceeds 0.012 ug/L more than once in a 3-year period in the ambient water, the edible portion ofaquatic spccics ofconcern must be analyzed to determine whcthcr the concentration of methyl mercury exceeds the FDA action level (I .Omg/kg). If the FDA action level is exceeded. the State must notify the appropriate EPA Regional AdminisIrator. Initiate arevision of its mercury crilcrion in 11%water quality sIandards soastoprotect dcsrgnatcd uses, and take other approprIaIc actIon such as Issuance of a fish consumption advisory for the affccIcd area. J.No critcrta for protcctlon of human health from consumption of aquatic organisms (cxcludmg water) was presented In the 1980 criteria document or inthe 1986 Quality CritcrIa for Water. Nevcrthcless. sufficient information was presented In the 1980 document toallow acalculation of acrltcrion. even though the results of such acalculation were not shown in the document.
k. The crlIcrlon for asbcsIos is the MCL (56 FR 3526. January 30, 1991) I.This letter not used asafootnote.

m. Criteria for Ihcsc mcrals arc cxprcsscd asa function of the water c!Tcct ratio, WER. as defined In 40 CFR 131.36(c)
CMC = column BI or Cl baluc X WER
CCC = column B?or C2 baluc X WER

n. EPA IS nut promulgating human health critcrla for IhIs contammant. However, permrI auIhorlIlcs should address this contaminant In %PDES pcrmlt actlons using the St31c’s cxlbtlng narrative criteria for Ioxlcs
General I\;oIcs
1.This chart IISISall of EPA’s prlorlty toxic pollutants whether or not criteria recommendations arc available. Blank
spaces indlcatc theabsence ofcriteria recommendations. Bccausc of variations in chemical nomenclature systems. this lirting of toxic pollutants does not duplicate the listing inAppcndlx Aof 40CFR Part 423. EPA has added the Chemical Ab stracls Scrvlcc (CAS) registry numbers, whrch provrdc a unrquc IdcnIlfication for each chcmlcal.
2 The followlng chcmlcals have organolcptrc based crltcrla recommendations that arc not lncludcd on this chart (for

reasons which are dlbcusscd rnthe prcamblc). copper. zinc, chlorobcnzcne. 2chle rophcnol. 2.4-dichlorophcnol, accnaphthcnc. 2.4-dlmethylphcnol, 3-methyl-4- chlorophcnol. hcxachlorocyclopentadicnc, pcntachlorophcnol, phenol
3. For purposes of IhIs rulemaking, freshwater crltcrta and saltwater criteria apply asspeclficd tn40 CFR I31 36(c). (2) Facrors /or C‘alcularrng Merals Crirrrta
CMC-WER cxp{m~(ln(hardncss))+b~~ CCC-WL:R cxplmc [In(hardncsb) J+bc.1CMC-WER exptm~[ln(hardness)]+b~t CCC-WER exptmc[ln(hardness))+bcl

Cadmum Gwwr Chromwm (III) Lesd Nckel SllVW Zmc

Note The lerm exp represenrs lhe base eexponenml luncl~on ml b*
1128 -3828 09422 -1464 08190 3688 1273 -1460 08460 33612 172 -652 00473 08604 mc k

07052 -3 490 08545 -1 465 08190 1561 1273 -4 705 08460 11645

0a473 07blJ

(I) The crltcrla Inp,lrJpr.lph (b) ofthlc sccllon apply to [he Sr.ltc\’ dc~lpn.~rcd

usesc~tcd IIIparagraph (d) of rhls sectIon and supersede an) crI(cIIa adopted b) rhe Stare, cxcepr when Slate regulations contaln cII{crla which arc murc htrlngenr for

aparticular use Inwhich c~\c rhc St.~tc‘s crilcria will contlnuc to .~pply (2) The crIkr!d e>rJbllshcd 111 this KC- (ion arc bubJccl 10 rhc Slrllc‘b gcncrJI rules ofapplrcablllly 111Ihc same waj and IO!hc same CXIC~I.1\arc’~hcolhcr nurncrIC IOXIC~ CTiIc’r1J when appl~cd to the\am(:

useclassificarlons including mlxlng 7oncs. and low flow values bclou uhich numcrlc standards can bc exceeded In tloulng fresh waters (i) For all waters ul\h mlxlng ronc regulations or Implcmcntation procedures. the cliterla apply al the approprldtc Iotat~ons wl[hrn or ai the boundar) of rhc mixing zones. orhcrwtsc fhc criteria apply throughour the walcrbodh inctudlng a[ the end of any discharge p~pc. canal or other discharge point (ii) A S~atc shdll nut UK .I low tlow value below which nurncrIc‘ \t.ind.lrd\ can bccxcccdcd that ISIc\\ \rrlngcnt th.ln the following for w.~tcr\ \u~~,~blcf<~rlhc c\[.~btrshmcnr of low How return frcqucnclcs (ic,stream\ and rlberh)

Aquallc LIIS
Acutecrlleria (CMC) 1010or1B3 Chronc crllerla (CCC) 7OlOor4B3

Human Health Non-carcinogens C8WWJW3S 300 5 Harmontic mean flow

Where CMC-crllcria maxlmum conccnlralion--the water qualr~) c‘rrtcrra to protccr agarnst acuk ctTccls nri.~quirc 11le clnd IS the. hlghcst Insrrcam conccntrallon of a prlorlry lox~c pollur.lnr con\lsllng of ~1 one-hour abcrapc not IUbecxcccdcd more thdn once every three jears on rhc avcr- cable crltcrla arc the sJl\uarcr c‘r1lcrl.l 111 3gc. Column C. and

ccc -crileria conllnuous conccnlralion--the waler qualIly crikrla 10protccr against chronic cffcc~ In aquatic life IS the highest insrrcam conccntralion of a priority toxic pollulant consisling of a4. dab average not IObccxcccdcd more than

once every three years on the average. I Q IO ISthe lowest one day flow ul[h
an average rccurrcncc frcqucncy of once In IOyears dckrmincd hydrologlcally. II33I\bloloyically based and indicates
,111allouablc cxcccdcncc of once every 3 years. It 15dclcrmincd by EPA’s compurcrazed method (DFLOW model). 7Q IOisthe lowest average 7consccu- ~IVC day low tlow with an average rccurrcncc rrcqucncy ofonce in IOyears dctcrmined hydrologically; (III) For waters Inwhich rhc \Jllnl[> I\ between I and IO parts per \huu\.lnd .I\ dcfincd Inparagraphs (c)(31 (I) Jnd (II) d this section. the appllcablc c‘rllcrl.1 Jrc rhs
more stringent of the frcshu.itcr err sal\w31er criteria tlowc\cr. \hc Kcgidn.11 Adminis[ralor ma) appro\s rhc UK ufthe allcrna!lvc frcshuatcr or sal\uu[cr c‘rllcria if scIentifically dcfenbiblc ~nform.~tion and data demonstrate that un .I\~tc-\pc cific basis the biolog) of the uJ\crbodj I\ domlnutcd by CrcshuJ[cr .~qu.l[~c talcJII~ that frcrhualcr cTilcrIJ arc nI,)rc’ Jppr<l prlalc. or convcrsclb, the blolog! ,l!’ ~hc waterbody IS domlnared b> ,.Llludtcr aqualic II~C and that sa1tuJlc.r crllcrI.1 .irc
more appropriak

4B3ISbIologIcally based and indlcalcs
anallowable excccdcncc for 3consccu~lvc days once cvcry 3years. It ISdctcrrnlncd b> EPA’s computcrizcd method (DFLOW model); 30Q 5isthe lowest average 30consecUIIVCday low flow with an average rccurrencc frequency of once in 5years dclcr. mlncd hydrologically; and the harmonic
mean flow 1salong lcrm mean flow value calcul~tcd by divldlng the number of dal. I) flows analyzed by the sum of the rcclprocals of those dally flows (I~I) If aState dots not have such alow How value for numeric standards complldncc, then none shall apply and the critcTia Included in paragraph (d) of this scc- (ion herein apply at all flows. (3) The aquatic life criteria in the matrix Inparagraph (b) of this section apply iis follows: (4) .+p/lCC2Jit,n Oj- ~?l<‘~‘J~,\ irilc’rlc, (I) For purposes of calculdtlnp frc>hwdlcr aquatic llfc critcrla for mcI.~l~ from the equations Inparagraph (b)(Z) of lhl\ section. the mimmum hardncb\ alloucd for USCinthose equalions shall not bcIts\ than 25mg/l. ascalcium carbonJtc. cbcn Ifthe actual ambient hdrdncsh 15Icbsth.ln ?5mg/l ascalcium carbonale The IllJ~lmum hardness value for use 111 thtix cquatlons shall not exiccd JUU mp, I .I\ cakium carbonate. CIC’II I( [hr .~ctu.~l .*n, blent hardness IS grcJter IhJn 4~ n,g I as calcium cJrbonaic The >.imc pra~l
SlOnS apply for CakUlatinp the ITICIJIS Crl IcTia for rhc comparisons probldcd fur in paragraph (c)(3)(111) of this scc‘\lon (II) The hardness values used shalt bc consistcnl with the design discharge conditions csIablishcd Inparagraph (c)(Z) ol this section for flows and mixing zoncb
(i) For waters in which the salinity is equal to or lessthan I part per thousand 95R or more of Ihc lime. the appllcablc criteria are the frcshwarer criteria inColumn B. (II) For waters in which the sallnl[y IS equal 10orgreater than IOparts per rhou- \and 95% or more of the tlmc. the appll- (Iii) The criteria for mclals (compound\ #l-II 3in paragraph (b) of this SCC~IWI) arc cxprcsscd as lo131 recoverable 1-N pUr,XXCS of CalcUtatlng JqUJllc IIfC c‘rllcria for metals from the equJtlon\ In ~WIInote kf In the CrllcrlJ rnJlrl\ In p.lr.lgraph (b)(I) of this sectIon and rhc c~u.,- lions in paragraph (b)(Z) of thlh \CCIIU~. rhc water-ctTect ratlu ~‘rcunipulcd .I\ k,+ccific pollutanr’s acute orchronic tox~city values measured rnwater from the site covered by the standard. divided by the rcspectrvc acute or chronic toxicity value In laboratory dilution water The watcreffect ratlo shall be assigned a value of I0.cxcep~ where the permlttlng authorlty asslgns adllTcrcnt value that protects the dcslgnatcd uses of the water body from the toxic CHCCIS of the pollutant, and isderived from suitable tests on sampled water rcprcsentatlvc of conditions in the affected water body, consistent with the design dlschargc condltrons established in paragraph (c)(2) of this section. For purposes of rhrs paragraph. the term acute toxicity value isthe toxicity test results, such as theconcantratccl YT! half of the test organisms (i.e. YOp”dr: tcr 96hours ofexposure (cg,fish toxicity ICSIS) or the cdccr concentration IOonchalf of the test organisms. (i.e., ECSO) after 48 hours of exposure (c-g, daphnia toxicity tests). For purposes of this paragraph. the term chronic value isthe result from appropriate hypothesis testing or rcgrcssion analysis of measurements of growth, reproduction. orsurvival from llfc cycle. partial life cycle, or early life stage tests The dctcrminatlon of acute and chronrc values shall beaccording to current standard protocols (e.g. those pub llshcd by the American Soc~cty for TCSIlng Matcrlals (ASTM)) or other comparable methods For calculation of crltcria using site-specific values for both the hardness and the water ctTcct ratio, the hardness used In the equations in paragraph (b)(2) of this section shall be as required in paragraph (c)(4)(ii) of this section Water hardness shall becalculated from the measured calcium and magnesium Ionspresent. and the ratlo ofcalcium to magncslum shall beapproximately the same in standard laboratory toxicity fcsrmg water asrnthe SIIC water (d) Cr~rer~o /or Specrfic /ur~sdlrfions- (I) Rhode Island. EP.4 Region 1 (I) All waters assigned IOthe following USCclassifications In the Water Quality Regulations for Water Pollution Control adopted under Chapters 46- 12.42- 17.I, and 42-35 of the General Laws of Rhode Island arc subject to the criteria in paragraph (d)( I)(ii) of this section. without exception.

621 Freshwater 622 Saltwater ClassA Class SA Class 0 Class SB Class C Class SC (ii) The following criteria from the matrix in paragraph (b)(I) of this section apply to the USCclassifications identified Inparagraph (d)(I)(i) of this section.
Us0classlficatlon CbS¶A

Class BWUUl wlmro water rupply “M IS not dmgfuled. CbSS c. arsr SA.
arsr s0.
arsr SC Each of these class~hcabons IS

### aswgned thecnterla In ColumnDZ-Ul

(III) The human health criteria shall be applied at the 10.’ risk level. consistent with the State policy. To determine ap propriatc value for carcinogens, see foolnote cInthe criteria matrix in paragraph (b)(I) of this section. (2) Vwnonr. EPA Region I. (i) All waters assigned tothe following USCclassifications in the Vermont Water Quality Standards adopted under the authority of the Vermont Water Pollution Control Act (IO V.S.A.. Chapter 47) arc subject to the criteria in paragraph (d)(Z)(Il) of this scctlon. without exccp tlon: Class A Class B Class C (ii) The following criteria from the matrix in paragraph (b)(I) of this section apply to the USCclassifications identified in paragraph (d)(2)(i) of this section.
Useclasslhcallon Applcabb cmerla

Class A 

### CIIISS 6 waters where Thfs class1hc8110” IS waler supply use IS amgned the cfltena cbslgnalfd CcCmn 81-all Column 82-all Column Dl-all Class B wa10fs where watof suppry use IS not desqnared CbSS c These classldcatlons
are amgned the co

### tOnJII-i Column I31-all Column BZ-alI Column D2-all

(III) The hurndn health crltcrla shall be Jppllcd dl theSlate-prop& lO’rl,k IcvCl (3jivew Jersey. EPA Region 2. (i) All waters assigned to the following USCclassifications in the New Jersey Administrative Code (N.J.A.C.) 7:9-4.1 et seq.. Surface Waler Quality Standards.
arc subject IOthe criteria in paragraph (d)(3)(11) of this scctlon. wlthout cxccp twn N.J.A.C 7.9-4. N.J.A.C. 7:9-4. N JA.C 7.9-4. N JA.C 719-4. K.J.A.C. 7.9-4. NJ.A.C. 79-4. 2(b) Class PL

2(c): Class FW2 2(d) Class SEI 2(c). Class SE2 2(f). Class SE3 2(g) Class SC N J.A.C 7.9-4 13(a) Delaware River Zones IC, ID. and IE N JAC 7:9-4.13(b). Delaware River Zone 2 X JA C 7.9-4 13(c), Delaware River Zone 3 N JA C 7-9-4.13(d) Delaware River Zone 4 N.J.A.C. 7.9-4.13(c) Delaware River Zone 5 N.J.A.C. 7:9-4.13(f). Delaware River Zone 6
(II) The followmg criteria from the matr~x rn paragraph (b)( I) of IhJs section apply to the USCclasslticatlons identified Inparagraph (d)(3)(i) of this section:

use clsssIflcatlon A‘@lclbb CfltOflJ

PL (Freshwater Pme- These Cl~SSlfiCaIlOnS lands). Fw2 

### Jr*lrrhgnodthecrlterra In.Cdumn 81-all lxcopt rl02. 105. 107. 108. 111. 112. 113. 115. 117.
118. Column BZ-all lxwp rlO5.107.1~. 111. 112. 113. 115. 117. 118. 119. 120. 121. 122. 123. 124. me 125 Column Dl-all at a lo-’ flsk bvel .x~pI x23, 30. 37. 38. 12. 68. 89. 91. 93. 104. 105. r23. 30.37. 38. 42. 68. 89. 91. 93. 104. 105. a1a 1OJ nsk bvel. Column DZ-•ll l l lo-’ nrk bvel oxcop ~23. 30. 37. 30. 42. 68. 09. 91. 93. 104. 105. 23. 30. 37. 38. 42. 68. 89. 91. 93. 104 105. II I lo-’ “Sk bvel PL (Salme Water P~ne. These CIaSSIflClllOnS Ianas) SE1 SE2 are ass~gnbd me enSE3 SC cerla museclasslhc4lKm rpplrable Crlterla

Column Cl-alI except #102.105.107.108. 111. 112. 113. 115. 117. and 118 Column C2-all except r105. 107. 108.111. 112. 113. 115. 117. 118. 119. 120. 121. 122. 123. 124. and 125 Column D2-all at a lo-’ fllk level except 123. 30. 37, 30, 42. 68. 89. 91, 93. 104 105. *23. 30.37.38. 42. 68. 89. 91. 93, 104. 105 at a 10-s nsh level Delaware Awer zones These classlflcatlons 1c. 10. 1E.2.3.4.5 are assqned the tn. ana Delaware Bay tena in
zone 6 Column 81-all Column B2-all Column Dl-all at a 10-Onsk level except *23. 30. 37. 38 42. 68. 89. 91. 93. 104. 105. *23. 30.37.38. 42. 68. 89. 91. 93. 104 105. at a 10-s risk level Column D2-all at a 10-4 nsk level except r23. 30. 37. 38. 42, 68, 89. 9t. 93. 104. 105. ~23. 30,37.38. 42. 66. 89. 91. 93. 104. 105. at a 10-s risk level Delaware RWW zones These classdicatlons 3.4. and5.andDela- areasstpneathecrtware Bay zone 6 tena I” Column Cl-all Column C2-all Column D2-all at a 10-s nsk level except 123. 30. 37, 38. 42. 68. 89. 91. 93. 104. 105. r23. 30.37,38. 42. 68. 89. 91. 93. 104. t05. at a to-6 risk level

(iii) The human health crttcria shall bc applied atthe State-proposed IO.brisk lcvcl for EPA rated Class A. 61. and Bt carcinogens; EPA rated Class C carctno gcns shall beapplied at 10-srisk level. To determine appropriate value for carcino gens, seefootnote c.inthe matrix inparagraph (b)(I) of this section. (4) Puerto Rico. EPA Region 2. (i) All waters assigned to the following USCclassifications inthe Puerto Rico Water Quality Standards (promulgated by Resolution Number R-83-S-I) are sub ~ccttothe criteria inparagraph (d)(4)(ii) of this section, without exception. Article 2.2.2-Class SB Article 2.2.3-Class SC Article 22.4-Class SD (it) The following criteria from the matrtx in paragraph (b)(l) of this section apply to the USCclassifications identified in paragraph (d)(4)(i) of this section:

Use clasdcahon Appkcable rmterla
ClassSO Thts Classlfxatlon IS assgnea the crlterla I”’ Column Bl-all. excepr 10. 102. 105. 107. 108. 111. 112. 113. 115, 117. ana 126 Column 82-all. except, 105. 107. roe. 112. 113. 115. ana 117 Column Dl-all. oxcept 6. 14. 105. 112. 113. and 115 Column D2-all. except 14. 105. 112. 113. and 115. Thla Classuicat~on IS asstpma the crlterfia I” Column Cl-all, except 4.Sb.7.8. 10. 11.13.102.105.107. 106. 111. 112. 113. 115. 117,ana 126 Column C2-all. ox. cepl 4. 5b. 10. 13. 108. 112. 113. 115.
ana 117 Column D2-all, axcept. 14. 105. 112. 113. ma 115. Class SB. Class SC

(iii) The human health criteria shall bc applied at theState-proposed IO’ ruskIcvcl. To determine appropriate value for carcinogens, seefootnote c.inthe crttcrta matrix tnparagraph (b)( I)ofthis section (5) Disrrrcr of Co/umbra. EPA Regron 3 (I) All waters assigned to the followtng

use classifications tn chapter II TIIIC 21 DCMR. Water Quality Standards of the Dtstrict of Columbia are sublcct to the criteria inparagraph (d)(S)(ii) ofthis scction. without exception: IIOI.2Class C waters (ii) The following criteria from the matrtx tn paragraph (b)(I) of this scctton apply IOthe USCclassification tdcnttftcd tn paragraph (d)(S)(i) of this section Use classduat00

Class C Applrable cnterla

Tn~s classlfxatfion 1s aswgnecl the add!- nonal crlterla 0n Colum B2-#lo. 118. 126 Colum Dl-•*t5. 16. 44,67.68.79.80.81. 88. 114. 116. 118 Colum D2-all

(iii) The human health crttcrta shall bc applied at the State-adopted IO6 risk lcvCl.(6) Florida. EPA Kegrun J (i) All waters asstgncd to the folloutng USC classifications tn Ch.tpter 17-301 of the Florida Admtntstrdttvc Code (Ic, tdcntificd tnScctwn IT- 302600) arc sub ~ccttothe criteria Inprragraph (d)(6)(tt) of thts section. utthout crccptton Class I Class II Class III (ii) The followtng crttcria from the matrix paragraph (b)( I)of this section apply IO the use classificattons Identified in paragraph (d)(6)(i) of thts section:

Use clas.dcatlon 

### Apphcablecrlterla

Class I This classification II assagned the crltena

CZumn Dl-#lb Class II This classlhcat~on 1s 

## and asqned the 

### crlterla I” Class Ill(marine) &.i”,%l% 0 ‘L- * 14 Class Ill(fresh water) The classtidcallon IS asslgned the (rlterla

C:umn 02-•16

(III) The human health crttcrtd shall bc applied at the State-adopted IO6 ruskIcvCl(7) .Mlchrgan. EP.l Rqpon 5 (I) .All waters asstgncd tothe followtng USCclasstfications tn the Mtchtgan Dcpartmcnt of Natural Resources Commtsston General Rules. R 323 II00 dcstgnatcd uses. asdcftncd at R 323 1043 Dclintttons; A to N. (L.C.. tdcnttlicd tn Section (g) “Dcsignatcd USC”) arc SubJccl to the criteria inparagraph (d)(7)(it) ofthts scclion. without exceptton Agriculture Navigation lndustrtal Water Supply Public H’atcr Supply at the Potnt of Water intake Warmwatcr FishUse classhcatlon
ExtraordInary Resource Wafers Ecologlcaily Sensttlve Wacerboav Nalural an0 ScenK Waterways Flshews (1)Trout (2)Lakes ana Reservovs (3)Streams (al Ozark tilgh lands Ecore- *aon (D)0osron Mountalns Ecofq~on (c)Arkansas RW BI Valley Ecoreglon Id) Ouachifa MountsIns Ecoreglon (el TypIca, GUI! Coaslal Ecorego” (I) Sprmg Watermnuenced Gull Coastal Ecoregton lg) Leasl.allefed Della EcoreCJlO” (h) Channel.al terea Delta Ecoreglon Appkable crttma

rhese e.es are each asslgnea Ihe cnterla ,”Column Bl - a4 5a 50 6 7 8 9 10 11 13 14 Coiumn B2- U4 5a. 5b 6 7 6 9 10 13 14

(9) Ken-x. EPA KC~IUII 7 (I) All uatcr\ ;I\\lpncd ICIrhc foll~~u~ng “\C c‘~J>.\l~lc‘JllOll I11the h.in\.is Dcp.irtmcnt of Health and Envlronmcnt rcgulJ- [Ions. KA R 28-16-2Bb through KA R 28-l6-28f. arc subyxl IO rhc criteria in paragraph (d)(9)(11) of thrb scctwn. ulthout cxcepiion Scctwn 2X-l6-21(d Sccllon (2)(:\)--Spccl.il 4qu.ilic l.ifc USCWalers SectIon (Z)(B)-Expected Aquatic Llfc Csc Walers Scclwn (Z)(C)-Rcstrlctcd A~ULIIIC Life I’sc Waters Use CIassIfIcahon Applicable crllerla

Secllons (21(A) These ciass~factlons (2J1B) f2)(C areeach ass8gnea all (6~C1 -fsrer,a in Ccl,,mn 81 all except 89 11 13 102 105 107 108 111-113 115 117 ana 126. Column 02 all elcepl a9 13 105 107 108 111.113 115 1’7 119-12s
ana 126 ana Co~bmn 02 all rlceyr r9 112 113 ancl 115 Secllon 131 Th,s cfasslflcafdon is asqnea a11crlterla ,m Co,umn Dl ali ercept w9 12 112 113 ana 115

(III) The human hc.llth c‘rl[crlJ Lhall be :rpltcd 31the SrJrc-prqwcd IO” rl\b. lcb-

( IO) (‘u/l,/ornru. k. P 4 HCflf’” Y (I) All ualcrs ~\blpncd Jn) ~qu.lllc tlfc

ur human health uw cl.l\\lllc.lll(rn\ in the ii Jler Quality C‘untrol I’l.:n\ Ikjr [hc \JrloU$ BJ~I~S of the Sl.lrc ~“H.i\ln Plans”). JS amcndcd. adopt4 b! Ihc (‘.iIIforni;l SI~I~ U’alcr Rcwurcc\ Conlrol Hoard (“SWRCB”). except for ocean waters covcrcd by the \+‘;ltcr Quality Control Plan fur Ocean \\‘.ilcrs of Californl3 (“Ocean Plan”) adopted b) the SU KC‘B ulth rcsolutwn Nurnbcr 00 ?7 on \larch 22. 1990. arc subjccl 10 [hc crllcrl.1 III paragraph (d)( 10)(11) of this bcctwn. wIthout cxccptlon Thcbc crltcrld smcnd the portIons of rhc c\l\rlng SI~IC s!an. dJrds cunL~inrd in lhc ki\ln Pl.in\ >lorc pJrtlculJrly thcsc crtlcrI.1 Jmend *Jlcr ~uJ(II~ crIIcr13 ~~lnl.!incd 111the BJsln Plan <‘hJpterb hpcclljrng udtcr quaIll) objccrlves (the SIJIC cqurvalcnt of fcdcral ualcr qual~ry crI[crla) for rhc IOXICpolluIdnts ldcntlficd In paragraph (d)( l0)(11) of this scc‘(mn .Although the State has ;idoplcd several usedeslgnatlons for each of rhcsc u;llrr$. for purposes of this action. the zpccltic slJnd,trds IObc appllcd ,n p.irJgr.lph (d)( 10)(11) of thl\ \CCIIO~ Jrc b.lxd un Ihe prcwncc 111.I11UJIC~\ ()I \“IIIC .lL,UJrlc IlfC dC\l~“JllUrl Jrld thC prcwzncc orJbsencc of Ihc %lLS usede>- ign.ilion (\luniclpJl ,ind durncblic buppl!) lScc BJsln f’l.!n\ for mc)rc dct.lllcd “\C dctlrllll~,rl\ IOther Indrgcnous Aqua11c Lrfe and

Wrldlrfc Parual Body Cunr.rct Rccrcarron (II) The folIourn crrrcrra from the rn.r. trrx In paragraph (b)( It of this Ircc‘rron apply 10the use cl~\\rhcarruns rdcnrrticd

rnparagraph (d)(7)(r) of this sectron
Useclasslllcauon

Pubhc Water supply

Allother des!gnarbons This class~t~cat~on IS eSsvgned the cnlerla MlColumn 81-all, Column B2-all. Column Dl-all These classtkatlons
are assIgned the cm ferta m Column Bl-all. Column B2-all. and Column D2-all

(III) The human health crrrcrra shall be applrcd a11hcS1arcadop1cd 10-srisk Icvcl. To determine approprratc value for carcinogens. seefoolnote cin the crrtcrra matrix Inparagraph (b)(I) of this sectron. (H) Arkansas. EPA Hegm 6 (I) All warcrs .r\\rgncd rothe follourng USC Class1flC~IIun In scclron 4C (Walcrbody u\cs) rdcnrrlrcd rn Ark.rn\As Dcpartmcnt of Pullurron Cunrrol and Ecology’s Regularion No 2as amended and cnti1lcd. “Rcgula1ron Es1ablrshrng Waler Qualrty Srandards for Surface Waters ofthe S1atc of Arkansas” are sub JCC~10the crrlcrra Inparagraph (d)(E)(ii) of this section. wirhou1 cxccp1ion Exrraordrnary Resource Walers Ecologically Scnsrirvc Waterbody Na1ural and Scenic W’ateruays Frshcrrc\ (I )Truur (2) Lakes and Rcacrvolrs (3) Slreams (a) Ol.rrk lirghland\ Ilcorcgron (b) Bo\1on hlounralns licorcgron (c) Arkansas Rrvcr Valley Lcorcgron (d) Ouachrra Mounrarns Ecorcgron (c) Typical Gulf Coastal Ecorcgron (f) Spring Waler-influcnccd Gulf Coaslal Ecorcgion (g) Lcasr-altcrcd Delta Ecorcgion (h) Channel-dIrered Della Ecoregion Domoric Waler Supply (II) The followrng crrrcrra from 1hcma1rrx In paragraph (b)(l) of this scctron ‘apply 10the useclassrfication idcnrrticd In paragraph (d)(X)(r) of rhrs secrron Use class~katm AppkabIe crllerla ExtraordInary Resource Waters EcoloQKally Senswe Waterbody Natural and Scent Waterways Flshenes (1)Trout (2)Lakes and ResOrvONS (3)Strerms (a) Ozark Highlands Ecorewon (btBoston Mounlams Ecors~on (c)Arkansas RNer Valley Ecoreglon Id) Ouachlta Mountains Ecoreglon (et Typvzal Gulf Coastal Ecwegton (I) Sprq Waler. tnnuenced Gulf Coastal Ecoreg1on (9) Least~altered Delta Ecore-
(hJ)?hannel-altered Delta Ecoreglon These uses are each

asslgned the crlterla
anColumn Bl- *4. Sa.5b.6.7,0.9. 10. 11. 13. 14 Column f32- 14. 5a. 5b.6.7.6.9. 10. 13. 14

(9) Kansas, EPA Region 7 (i) All waters assigned tothe following

use classification in the Kansas Dcpartmen1 of Health and Environment rcgularrons. KA R. 28-l6-28b through K.A R 28-16-281. arc sub)ccl 10the crrlcrra In paragraph (d)(9)(ii) of this scc1ron, urthout exception. Scc1ion 28- 16-28d Scclron (Z)(A)-Special Aquatic l.Ifc Use Walers Section (Z)(B)-Expected Aqua1ic Life Use Walers Section (Z)(C)-Res1ric1cd Aquatic Life Use Walers Section (3)--Domcs1ic Water Supply Sccrron (6)(c)-Consumptive Rccrcation Use (ii) The following crr1cria from the matrix in paragraph (b)(l) of this section apply IOthe use classifications identified in paragraph (d)(9)(i) of this section usecIassIfIcatbon Appkable criteria

Secllons (2)(A). These class~laclions 

### (2)(B).(2NCi areeach asstgned all 

### VW) cr,1er,alP Colbmn 01 alI except r9 I1 13 102 105 107 106 111 113 115 117 and126 Column 02 all except a9 13 105 107 108 111-113 115 117 119-125 an0 126 and Column D2 all ercep1 r9 112 113 and 115 SectIon (3) This class~ficatlon IS assbgned ail crlcer#a I” Co’umn 01 ail ercepl 89 12 II2 113 ana 115

(III) The human health crrrc’rr.! \h~ll bc dpplrcd a1the Srarc-propo\cd IO” rr\h lcvCl(IO) ~bllfhlru. t.I’4Kqycm v (i) All wa1crs abs~pncd .Inb .I~U.I~IC lllc

ur human hc.rlth use~I.I\\I~Ic..III~~II\ rnrhc Warcr Qualrty Conlrul I’l.in\ It11Ihc v%rrrous Basins of the StJIc (“B.i\rn f’t.rn\“t.

as amcndcd. adopted by rhe (‘Jlrfornr~ State Water Resource\ Cunrrol Bo.rrd (“SWRCB”). except fur uccJn u.ilcrh covered by the Water Qua111v C‘unrrol Plan for Ocean Walers of Californra (“Ocean Plan”) adopted by the SWRCB with resolution Number 90-27 on \l.!rch 

### 22.1990.arc subjecr 10the crrlcrra In paragraph (d)( 10)(11) of rhrs scc‘rrun. wrthour cxccprron Thcsc crrrcrr.r .rrncnd 1he portions of the cxr\rrng Sr.rrc \r.rrldards conmined in 1hcB.r\ln f’l.rn\ \lorc partrcularly thcsc crltcrrJ amend u.itcr qualit) crr1crra cunr.lrncd rn the B.r\rn Plan Chap1crs spccrlyrng w.rrcr qu~llt! ObJcclivcs (the S13tc cqu~\.~lcnt uf I’cJcr.11 uakr qualily crltcris) fur Lhc luxlz pdlutants rdcntrfrcd In paragraph (d)( lO)r!rt of this section. Although 1hc Srarc h.rs adopted several USCdcsigna1rons for each of these walers. for purposes of 1hrs ac1ion. the specific srandards 1obc applrcd In paragraph (d)( 10)(11) of rhlb wc‘tlon
arc based onthe prcsencc In~111 wa1crs uf
some aqualic lrfc design.irron and rhc presence orabsence of 1hchlC’% usedcs. ignation (Municrpal and damcsrrc supply) (See Basin Plans fur more dcr.crlcd USCdctinrtrons )III) The foliowIne crltcrlu from the ma- defined In paragr.lph (d)( IO)(t) or thl\
trlx In pardgrdph (b)(I) uf thl, xctwn \ccllon Jnd Idcnrlticd bclw apply to the ud(cr and UC classlhcatlonb
Water ana use class1Ocatlon

Walers 01the Slate defmea as bays or estuarkes except the Sacramenlo-San Joaquln Della and San Framsco Bay Tnese waters are asshgnea the mena m Column I31--pollutants 5aand 14 Column W-pollutants 5a and 14 Counn C1-pollutant 14 Column CZ-pollutant 14 Column DZ-pollutants 1 12 17 18.21 22.29. 30 32 33 37 30 42-44 46 48. 49 54 59 66 67 68 76~62 85 89 90 91 93 95 96 90 Darers of lhe Sacramento-San Joaquln Della ana walers ofthe Slate deftned asmlana(Ie allSu’faCe watersofmeSlate notbaysorestuaraes orocean) Ihat rxluae aMUN use desqnallon

Walers 01Ihe Stare deflned aslnlano wlhout an MUN use deslpnabon

Waters oflhe San JoaauNn Rcverfrom Ihe mouth ofthe Merced River loVernahs

Walers of Salt Slough Mud Slougn (north) ana the San Joaquln River Sack Dam lo the mouth of the Mewed River

Walers 01SanFrancisco Bay upslream lo ana lnclvalng SUISU~BayandtheSacramento SanJoaquln Della These nalers are ass~gred the cr!lerla I” Column 01--po~~utanls Saana 14 Column 02. padams 5a ana 14 Column Dl-poilulanls 1 12 15. 17. 18 21.22.29.30 32 33.37 38 42-48.49. 59 66 66 76-62 05 89.90 91 93.95. 96 98

These walers are asstgned thecvlerla m C01mn 61-polh~tants 5aana 14 Cokmn B2--pollutants 5aana 14 Column DZ-pollulanls 1.12. 17 18,21 22 29 30 32 33 37 38 42-44.46.48 49 54 59 66 67 60 70-02 85 09.90 91 93 95 96 90

In aactl8on lo lne cr lerla assfgned lolhese walers elsewhere m In15 rule IheSe HalerS are assIgned thecrfterla in Column EZ-w~lklanl 10

Inadd,!3” IOIre cr#!eraassgned lothese wa ters elsewhere mlhls r;ile these walers are assqnea the cr8lwa m Column 81 -pollu1anr 10 Column BZ-pollufanf 10

These .valels are asSqned lhe crtlerla an Coi~mn 81--pc lulanls 5a TO’and 14 Chrn B2~~po18Jranrs 5a 10’and 14 Cc,umr Cl m-pllJlanl 14 Co(Jmr C2- poII,larrl 14 Cavmr C2- p3IlJfanls 1 12, 17 18 21 22 29 30 32 33 37 30 42.44,46,40 49 54 59 66 67 66 70-82 85.89.90 91 93 95 96 90 AllInland walws ofthe Unlled Slates ofenclosed Days andestuanes that are walers ofthe Untied Stales lhal ~ncfudean MUN use desqnabon and thal the Stale has etthur srcluded or paftlally excluded from coverage under 11sWaler OurMy Control Plan for Inland Surface Waters ofCallloma. Table5 1and 2 or 11sWaler ouallly CCJwOf Plan fof Encbsed Bays and Esiumes of Caltfoma. Tables 1and 2.of has deferred 

### lppf0bMy of those lables (Category (a). (b). and (c)walers descmbed Onpaw 6of Waler OuaMy Cantrd Planfor Inland Surface Waters ofCahforma orpage 6of11sWafer Ouallty Control Planfof Enclosed Bays ana Esluanes ofCallfornta ) ‘vese baler> are assIgned thecmerla for polulanls for whlcn ine Stale does nof apply Table 1or2slanaards These crlierla are C0i~rr.n El--all polluranfs Colum-7 02-all pollulanls CoiJmr Dl--all polI,ianls excepl r2 AllInland walers 01the Unllea Stales lhal dono1mcluae an MUN use clesgnalon and that the Stale has etther excluded 01 panlarly excluded from coverage under 11sWater Ouahty Conlrol Plan for lnlanc SurfaceWalers ofCallfornla Tables 1and2.ofhasaderred apphcabd~fyofthese tables (Category ia) (bl and(clwalers descrtbed onpage 6ofWaler Ouatlly Control PlanInland Surface Waters ofCallfornra )Water ana use cIassIfIcallon Appkable crllerla

f These waters are assIgned Ihe crllerta for polulanls for which the Stale does not apply Table I or2standards These cfllerla are Column 81--all pollutanls Column f32-all polwants Column D2--a:1 pollutants except a2 Allentis8d bays andeSluaWS that arewalers ofthe Un~ledStalewnd that IM Stale haseliher excluded OfpJr(lJfty OrCtudOd from COVWJQOunder 11sWaler Ouallty Control Plan tor Inland SurfaCe Walers 01 CalhxM. T8btas 1lrul2.oritsWataf OurMy Control PIanlor Enclosed Bays and Estuartes 01Calllornia Tab&s I rnd 2.w h8s deferred appkabMy ofthose labtes (Category (a),(b).and (c)walers aescnbed M page 601Water Oual~ty Control PIan lor Inland Surface Walers 01Callforms or page 6of 11sWaler tkellly Control Plan lof Enclosed Bays ana Esluarles 01Calllornla ) These wafers are assigned theCrllWta for polulanls lor whvzh the Slale Ooes no1apply Table I w 2standards These crllerll are Column BI-all po;tutanls Column 02-all pollutants Column Cl--all pollutants Column C2-ali pollutants Column D2-all pollutants except l2
’Thefresh water aetehlum cntena arewuluded fortheSanFrancisco Bayestuary because high levels ofbloaccumulahon ofselenium intheestuary lndlcale thet the SOItwaler crlterla bre underprotecllve lot San Francisco Bay

(iii) The human health cri1crla shall be applied a1the State-adopted ItY risk Icvcl.(I I)Nevada. EPA Region 0 (i) All waters assigned the USCclassltications inChapter 445ofthe Nevada Adminis1ratwc Code (NAC). hcvada IVatcr Pollulion Conrrol Rcgulatlons. uhlch arc referred to tn paragraph (d)( II)(II) of this scclion. arc subJec1 10the critcrla In paragraph (d)( Il)(ii) of this hccrwn. wthout exception These crltcria amend the cxisltng State standards contained In the Ncvadu Water Pollution C‘ontrol Krguldtwn\ Marc partlcul.irl>. thsw crItcr1.L .tmcnd orwpplcmcnt the rablc of numcrWaler and useCIass~l~cal~on Appl’Cable tr8Ier8a
Walers that the Stale has included inNAC 445 I339 where Munlc8pal or dOmeSIlt supply ISaOesngnaled UM ICsrandards In NAC 44S.1339 for the II)XIC pollutants ldcntlticd In paragraph (d)( II)(II) of this sectIon (II) The follouing crltcrla from ma1rlx In pJragr%iph (b)( I)of thl\ wctlon appl! IO the u.Itcr\ Jcllncti 111 p.\r.lgr,tph (d)! II)II) 01 lhl\ \cc‘lIon .Ind Idcntlllcd bclou

These walers are asslgnedthe crltena in Column Fit-pollutant 8116 Column B2-pollulanl #I I6 Column Dl-pollutanls #15 16. 16 19. 20.21,23,26 27.29.30.3.4.37.3%.42. 43.55.56-62. 64 66.73.74.76.62.85. 87-89. 91, 92. 96. 98. 100. 103. 104 105. 114 It6 117 118 Walers thattheStale has included I” NAC 445 1339where Murvclpal ordomesrlc supply ISnot adeslgnat
ea use These walers are asvgned the Crblerta!n Column 01 --pol:ulant l 1I8 Coimn 02- pollutant 01t8 Column02-all pollutants except #2

(111)The human health crltcrla shall be applied a1the IO’ risk level. consistent with State @ICY. To dcterminc approprtatevalue for carcinogens. seefoolnolc cin the criteria matrtx tnparagraph (b)(I) of this section (I2)Alaska. EPA Region 10 (i) All waters asslpncd IOthe folloulng
useclawficatlons Inthe Alaska AdmInIstra1wc Code (AAC). Chapter I8 (Ic, tdentlhcd tn I8 AAC 70020) arc sublcct IOthe crltcrla Inparupr;lph (d)( II!)(11),)I 1hlsscctwn. ulthout cxccptlon 70020 (I)(A) Fresh Water 70.020 (I) (A) Water SuppI) (I) Drinking, cullnary. and food proccssmg. (iii) Aquaculture; 70020 (I) (B) Water Recreation (I) Contact recreation, (ii) Secondary rccrcation. 70020 (I) (C) Grouth and prl,papntwn of li\h. \hcllti\h. other ;~qu.ltli I~fc. and ulldllfc 70020 (2) (A) Marlnc Water 70020 (2) (A) Waler SuppI! (I) Aquaculturc, 70020 (2) (8) IL’3Icr Kc~rc;itwn (I) contact rccrczttion. (II) sccundar) rccrcatlon. 70020.(?) (C) Grwth and propagallon of fish. shellfish. other aquallc life. and wildllfc; 70020 (2) (D) Harvcsrlng for consumg tion of raw mollusks or other raw aqu.irlc II~C

ADpllcable crllerla
Column 81-a11 Column BZ-•rlO Column D(usectasshcaton Aopllcablecrtlerla

8s2 16 16-21 23. 26 27 29 30. 32. 37 38 42-44 53 55. 59-62 64 66 60 73. 74 78 82 05 08 09 91-93 96 98 102-105. 107-111 117-126 Cohmn 81-all COlUrnll e2-•ro Column ox 8 s 2 14 16 1.3-21 22 23 26 27 29 30 32. 37 30 42-44 46 53 54. 55. 59-62 64 66 68 73 74 78 02 a5 68-93. 95. 96. 98. 102-105. 107-111. 115-126 CoIwlne1--all Column e2--010 Column 02 d s 2 14 76 18 21 22 23 26 27 29 30 32 37 38. 42-44 46 53 54 55 59-62 64 66 68 73 74. 70. 82 85 86-93. 95. 96 98. 102-105. 107-111 115-126 Column C1-all Column C2-•rlO Column 02
e s 2 14, 16 18-21, 22 23 26 27 29 30. 32 37 30 42-44, 46 53 54 55. 59-62. 64 66 68 73. 74. 7a 02 85. 88-93. 95. 96. 98. 102-105. 107-111 115-126 (111)The human health crltcria shall be

applied at the State-proposed risk level of IO’ To determine approprlatc value for cdrcrnogcns. seefootnote cInthe crltcrla mdlrlx Inparagraph (b)(I) ofthl> sccllon (13)Iduh. t’P.4 Xegwn 10 (I) All waters assigned tothe following

ux clawhcatwns in the Idaho hdmlnr.r- ~ratwc Procedures Act (IDAPA), Chap tcr I6 (l.c., Identified in IDAPA I601?lOO.O?-I6 012100.07) arc subject 11)the crltcr1a Inparagraph (d)( 13)(1ri ol thl\ scc!wn. ulthout exception IhO1 ?lOOOI b I)omcstlc U’Jtcr SupPllCS IhO1 ?lOOO!.a Cold Water 81013 1601 !IWO! b Warm Water Biota 16.01 2100 O?cc Sslmontd Spaunrng I601 !I00 03.a Prlmaq Contact Rccrcatwn 16.0I.2IO0.03.b Scconddq Contact Rccrcation

(II) The followvlng crltcrla from the matllx in paragraph (b)( I) of this sewon apply to the USCclawlicatlons Idcntlticd In paragraph (dl( 13)(l) of thr\ xction

Jse cIass01Ical0n

010

02a09b02cc

03a

030 ApphcaOle cribma

This class~hcal~on IS assIgned Itw crltwa 1’1Column 01-all e*clSpt a14 and 115 These ClJSSlhCJtlO~S

are JSSlgWd Ihe C,Il,lJ In
column 81-Jll
column 82--JH Column ‘X--all The class~hcal~on IS
JSSlQW3d the Crllerla 111

Column D2- all Thfs classlkallon 1s asslgned the crllerla I” Column 02- all

(111)The human health crltcria shall be applied at the IO* risk level. corwstcnt \rlrh State polq (IA) H’uthrngw. t.P.4 KPR”‘” 10 (I) All walers asslgncd tothe following UC ciasstticatlons mthe H’ashmgton Admlni~lratlvc C‘odc IH’A(‘). Chapter 171-201 (I c. ldcn~lfrcd In H’AC I’]-201 -045) arc \U~JCCI IJ the crltcrld tn paragraph (dl(l4)(11) of this scct~on. *lthout cxccpr~vn 17!-201-015
I-lsh and Shcllfi,h
Flih

(II) The f~Jl,wlng crltcrla from the rnatrlx In paragraph (b)(I) of this scc(wn apply to the USCclasslfi~atlons ldcntrficd in paragraph (d)( IJ)(I) of this sccIIon

Use clafs~hcal~on A*p‘%Jt,lJ Cfltb(lJ
FishandShellhsh. Fish These classrhcJlrons

-r J,e JSWJWd the CW

Waler Supply (domes These ClJSSlhCllOnS 1IC) are asvgned the crbb3r5a.r Column 01-Jll Recreab3n ThlS classlhcJlIon IS assigned Ihe cr11ef1a 3” Column D2- Martne wJters an0 IleShwJtOrs not prolecled lor oomestlc waler supply

t111jThe human hca!th crltcrla shall bc dppllcd at the SIJ!C propId risk Ic\cl of 106

[§131 36added at 57FR 60910. Dec. 22. I9921