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Permit No. COG-600000
<br />Facility No. COG600177
<br />Page 1
<br />CERTIFICATION
<br />• AUTHORIZATION TO DISCHARGE UNDER THE
<br />CDPS INDUSTRIAL GENERAL MINIMAL DISCHARGE PERMIT
<br />Category 26, Subcategory 1, General Permits, Current fee $100 per CRS 25-8-502
<br />SIC Cade 1222
<br />SHORT TERM CERTIFICATION
<br />This cerfiRcation Qnrf the nr!thnrization to diccharg~ wall a ire 90 davc after the effective date listed at the bottom Qf chic certihcatiat
<br />This permit specifically authorizes: OXBOW MINING, INC. with the facility contact of.• Same as at left
<br />Thomas C. Anderson.-Envirortmental_Coordinator
<br />P.O. Bax 535._:4=„•~ _---~ "'.,,..'",,~ ~~
<br />Somerset.••C0 81438 ~"'~' ~ ,~;+*~„ y~ "-•~,,: `•_
<br />(9701929;5112`'` :-FAX (970) 929-SIT/ ', '~ "`'
<br />... ~~ .., .y`^rt~ ~ ...
<br />to discharge from facilities identified as Orbow Miries ~ells.Pump-Testutg,,;lacated in the E h of Seetion 8, T13S, R90W, Gunnisor
<br />County, at 3737 State HighwayI33; from Discharge Paints 001, OOZ;-,003 and OOfi; at shdwn in Ffgum 1 of the permit. Discharge point.
<br />001, 002, 003 and 004 are. the discharges from pump-testing of fou%grourtdwater, wells_piiar to. entering Elk Creek, with the average
<br />flow rate of SO ro ISO gpm•and maximum flow late of-300_gpm:~; Flow from"6l! four wells, wdl be piped to a common physical locatia
<br />for discharge to Elk Creek,`buT each will occur sequentially m-differe~~m[r~~oittts i_n.[itne:^-Each rlischarge,wtll occur for up to four hour.
<br />Y.; `
<br />with all testing occurring over a period.of not mare rhan~th'iee-weeks. v7he, discharges are'`JO.Efk Creek; Segment 6 of the Nonh Fon
<br />of the Gunnison River Sub-basin, found in Classifications,and Numeiic Staridards:for the.Cunnison mid Lower Dolores Rivers Basin
<br />.....•
<br />Regulation 35 (S CCR 1002-35), as'amended Aprt1~1998.~ Segmetn 6'hiu-been designated Use Prorecrett and classified for the
<br />following uses: Recreation, Class 2; Aquatic Life, Class 2 {Wanrt); :Water Supply] •Agriculture. ~ e ;
<br />Applicable limitations and monitoring requirements are listed-in Parts.LB.-2.e: and'l:C.1.e. of the permit. (1vOTE: Tn casts wtere the subpart
<br />of LB.2. mid LC. J. do wt match thr dncription of the tischarge, the Division has:revirwrd ttie discharge and detrnnined that the parameren or frequencies listed in other
<br />~°~' art more apph'mbte ro ilte discharge) T7le_s~r ecific narameteis. limits. jreaaeneiel. and samalg(ypes that the yrgrmi_7ee shall follow are
<br />~nmarized in this mble: ~~ ` ~ - -" -°:'~
<br />r ' , • ~ ••~ ''~ r ,
<br />, .-~- .
<br />Parameter Disc a I;iniitation . Fr uenc Sam le
<br /> 30-da ave 7-da ave Dail max i
<br />
<br />Flow, m
<br />Re` rt ,
<br />'~ _„'
<br />' NA -
<br />~~Re ort~~. *'
<br />
<br />-; ,
<br />y
<br />Instantaneous
<br />TSS, m /Q r-= 30 -`4 ' •, 4~, :'_, - :.Nh .~ ' r3~
<br />.~ Grab
<br />pH, su. ~, NA. 6.5-9.Oc' ~
<br />~" Grab
<br />(minimum-maximum '~`:`~ ,_,,.,~°°' '° ¢; Oncepev
<br />
<br />Oil/Grease, m /Q --~;,
<br />~~N'f~. _
<br />~ Nt~» _
<br />~""`'' lOr bisctiarge
<br />,~ ~
<br />'.
<br />Visual
<br />Potentially Dissolved Iron, '
<br />NA -'~°: ..c...
<br />„~ NA.,r~ ...
<br />~ Report
<br />m- sue.-:
<br />-'~ Grab
<br /> gy
<br />Potentially Dissolved NA NA Report Grab
<br />Zinc, m !Q
<br />Best Management Practices, as discussed in Part I.F.S. of the permit and Part V.K. of the permit rationale, shall bt followed for the
<br />duration of the discharge.
<br />correspondence relative tQQo apphis facility should reference the specific facility No. COG600177.
<br />Effective ~~ O Bt~Pi•~rmtiErpires JULY 312000 CertificarionFxpires .bPR O ~ 1999
<br />This facility permit contains 44 pages.
<br />Jon Kubic January 8, 1999
<br />BDMR
<br />
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