PERMFILE123744

• Permit No: C1981016
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Doc Name: NPDES Permit No. CO-0033146 & Related Correspondence
• Section_Exhibit Name: APPENDIX X Section X.13
• Media Type: D
• Archive: No

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'':r:':c ~,':'o-ado 80220
j: I•'~rch 7, 1978
,~ ~ i1]y 10, 1978
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RECIJLATI0N5 FOR IMPLEMENTATION
3.1C.C OF THE COLD^.ADO RIVER SALINITY STAt;DARDS
Tf~.".O~ ifi TIME NPDES PERl1IT PROG('.F
3.1^.i -'P!JTt!OPITY: C.R:S., 1973, Section 25-8-202 (1) (c) and (d); 25-8-ZC:, (1;
`(a ); and 25-8-501 (3); as amended.
3.1C.2 I~FrI~;1T10~J5: See the Colorado State Water Quality Certrol Act and the
T::~or ~~!ality Control Codified regulations for additiertal d=finitions.
1. "LOl'!E2 6.4SIN/UPPER 6:1SIN" for the purpose of this regulation, the be_`.n
dividing point is at Lee Ferry, Arizona.
.1~.? F!IF.FOSE: In November 1976, the United States Enviror-~nt:1 Protectio:~
=rcy Rcgienal R,d:ministrators notified each of the se•;r-t Colorado "ivc,
Basin States of the approval o'. the water quality step=.rds for salir.~t:'
far the Colorado River System as contained in the dec~~--nt ..^_ntitleJ "F;•c-
p~scd l~.'ater Quality Stan_~rds for Salinity Including P:'~--J-ic Criteria ~,c!
Flan of Ir~leTCntation for Salinity Control, Colorado F.~:a_r Syst~~, ~:~.~~
• 19i5", ar~d the supple~,cnt dated August 25, 19i5. The 5-_linit~J st:r.dar~
ir.~ludirtg numeric criteria and a plan of imple:,cntatic~i ~;-c~;ic•.e fo^ e. •~le.:
~:~ichted average annual nc~^^_rie criteria for three stc.~ene in t!:' lr•"';
r~instc~ of the Colorado River: bele:v Hoover Dam, be'.:~,J Fcr!;er C~~ ar.:;
et Imperial Dam.
The Plan of II*nle^entation is comprised of 2 re:~ber of Fe?a-e:
and nor.-Federal projects and measures to maintain the r'c;:-~;r~ighted a~:E.~~^^
zr.nval salinity in the Lo~':er Colorado River at or belc•• rte-,~ic crit~r~ ~'.
the th:•e^ stations as the Upper and LoJ•:er Basin states c~r.;inue to d_:•clc;
t!:~ir cc-?act-apportioned waters. One of the eo.^!pert^r:s o` the Plan ccn- .
sists of the placing of effluent limitations, thro:.~;h t.^ t:~•i;ional Fcl-
lutent Discharge Elimination System (NPDES) permit pre_r~m, en in~ustr~el
and municipal discharges.
The purpose of this regulation is to provid^ m:•:e detailed
guidance in the application of salinity standards deve'c^;~. p'_rsuent to
S~ctiert 204 of the Colorado Water Quality Control Act, (C.R.S. i°73, 25-r-'"'
and Section 303 of the Federal Water Pollution Control C.^` P.^~ndrr:r,ts o. ::~;;
(33 U.S.C. Section 303) (hereinafter "FWPCA"). The S'.:r!=r•'_s are to b^_
inpleT=nted through the N^CES permitting authority in t~:~ reulation cf
m~~~icipal and industrial sources pursuant to Section ~C'_ et:.seg. of tr,~
Colorado Act and Section 402 of the F4JPCA. This regulation is applie:.:^le t^
discharges that would have an impact, either direct or indirect oil t.:~ lc;:~:
mainste:n of the Colorado River System. The lower main^`cm is defined as
thst portion of the main river from Hoover Dam to Impc°ial Dim, Hoovc~ C:~
is the first measuring point downstream from the division point betv:~=n t:,~
upper and lover basin.