PERMFILE44465

• Permit No: M1980244
• IBM Index Class Name: Permit File
• Doc Date: 8/15/2002
• Doc Name: Draft NPDES Permit
• From: CDPHE
• To: DMG
• Media Type: D
• Archive: No

Table A-3
Hardness-Based Water Quality Standards For Cripple Creek
Based on the Table Value Standards Contained in the Colorado Department of Public Health and
Environment Water Quality Control Commission Re lation 32
Parameter ~ ~+ ~w +> 3n'Streanr :Water Qualtty Formula Used' a~-" ~~~, ~ zlxe ~,,~; ~ ` ~~ ~ ~ ~ ,
u '~ may' ~T z.- #~~dyti Standard' 3 +~.' x°'t~ ,Y Qt`P~`t~ `q.- ~} `a w,v Lam, +h, ~S .d. ;.G?. is j~ ¢c"~r T
1 VC ' Y t^° ^~.'F,. *r. & r,ya ~^`~ 5 ~ „ns.J t Ffl. ''3. y a. R ~. .G' .F1 -) ~ .q .d,:.ti"C* 4;.;RR ..,k a!t~*"'8, s
~d'„-!-:.." 4I.~,. .c.3.+M1~f t.>ti'.~~'.c}R~ ..~ 5._y. Gr r. [~n±. p~C. t,.n"M'G~y, 4p 9E ~P~ 4'f' 4I... FSN i:J.c~~
Arsenic, Total
R
bl Acute NA
ecovera
e Chronic 100 ug/1 Numeric standards provided, formula not applicable
Cadmium, Dissolved Acute 8.3 ug/1 [1.13667-0.041841n(hazdness)][e(' "-e( "(a ness) - .6867)]
Chronic 3.52 ug/1 [1.10167-0.041841n(hazdness)][e(o. n(a ness)>-' ]
Trivalent Cluomium,
Di Acute NA
ssolved Chronic 100 ug/1 Numeric standazds provided, formula not applicable
Hexavalent Chromium,
Di
d Acute 16 ugA Numeric standazds provided, formula not applicable
ssolve Chronic 11 ug/1 Numeric standazds provided, fonnula not applicable
Copper, Dissolved Acute 23.99 ug/1 e(''oz (n( r ness )-1. 40 )
Chronic 1$.15 ug/1 e(os 4 (n(a ness)}~. a e)
Iron, Total Recoverable Acute NA
Chronic 1000 ug/1 Numeric standards provided, formula not applicable
Lead, Dissolved Acute 125.31 ug/1 [1.46203-0.1457121n(hardness)][e(''- a("(a ess) (.ab]
Chronic 4.88 ug/1 [1.46203-0.1457121n(hazdness)][e(" 3(n( ar ness ~4. 0 >]
Manganese Acute 3664 ugA e(' '("( ar ness ~b.a
ChLOn1C 2024 ug/1 e(' (^ a ness))+ . 4 )
Mercury, Total Acute NA
Chronic 0.01 ug/I Numeric standards provided, formula not applicable
Nickel, Dissolved Acute 787.9 ug/1 e(' ° "(a "CS5)~' .a
ChIOnIC 87.75 llg/1 2 . 46( n( xss + . > 4
Selenium, Dissolved Acute 18.4 ug/1 Numeric standazds provided, formula not applicable
Chronic 4.6 ugQ Numeric standazds provided, formula not applicable
Silver, Dissolved Acute 5,85 ug/1 % e''7z( n(a ws> .sz
ChrOIDC 0,92 ugQ e'~~z(n ar ess}9.06)
Zinc, Dissolved Acute 197.36 ug/l e(o.sa 3( a ess)}'0.861 )
Chronic 198.96 ugA e ' ^"(" ar ess + . 99
Ambient Water Oualiri
The WQCD evaluates ambient water quality based on a variety of statistical methods as prescribed in Section
31.8(2)(a)(i) and 31.8(2)(b)(i)(B) of the Colorado Deparment of Public Henlth and Enviromnent Water Quality
Control Commission Regulation No. 31. Ambient water quality is evaluated in this WQA analysis for use in
detemuning assimilative capacities for pollutants of concern.
Appendix A Page 5 of 13