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NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) <br />DISCHARGE MONITORING REPORT (DMR) <br />PERMITTEE NAME/ADDRESS (Include Facility Name/Location if Different) <br />NAME: Oxbow Mining LLC <br />ADDRESS: PO Box 535 <br /> Somerset, CO 81434-0535 <br />FACILITY: SANBORN CRK & ELK CRK MINES <br />LOCATION: 3737 HIGHWAY 133 <br /> SOMERSET, CO 81434 <br />ATTN: James T. Cooper, EVP <br />000000132 013-A <br />PERMIT NUMBER DISCHARGE NUMBER <br />MONITORING PERIOD <br />MM/DD/YYYY MM/DD/YYYY <br />FROM 11101/2010 TO 11/30/2010 <br />Form Approved <br />OMB No. 2040-0004 <br />DMR Mailing ZIP CODE: 81424-0535 <br />MINOR <br />GUNIS <br />RUNOFF TO N FORK GUNNISON R. <br />External Outfall <br />No Discharge <br /> <br />PARAMETER QUANTITY OR LOADING QUALITY OR CONCENTRATION NO. <br />EX FREQUENCY <br />OF ANALYSIS SAMPLE <br />TYPE <br /> VALUE VALUE UNITS VALUE VALUE VALUE UNITS <br />pH SAMPLE <br /> MEASUREMENT <br /> <br />0040010 <br />Effluent Gross PERMIT <br />REQUIREMENT 6.5 <br />MINIMUM «•«' 9 <br />MAXIMUM SU <br />Monthly <br />INSITU <br />Solids, total suspended SAMPLE <br />`»»` <br /> MEASUREMENT •»`» <br /> <br />00530 1 0 <br />Effluent Gross PERMIT <br />REQUIREMENT 35 <br />30DA AVG 70 <br />DAILY MX mg/L <br />Monthly <br />GRAB <br />Solids, settleable SAMPLE <br /> MEASUREMENT <br /> <br />005451 0 <br />Effluent Gross PERMIT <br />REQUIREMENT "• " »«•' ,«,„ `«,« Req. Mon. <br />30DA AVG Req. Mon. <br />DAILY MX mL/L <br /> <br />Monthly <br /> <br />GRAB <br />Iron, total (as Fe) SAMPLE <br /> MEASUREMENT »»' ""» <br /> <br />0104510 <br />Effluent Gross PERMIT <br />REQUIREMENT """ "'•" •"«' ,«'« 3000 <br />30DA AVG 6000 <br />DAILY MX ug/L <br />Monthly <br />GRAB <br />Oil and grease SAMPLE <br />«"" <br /> MEASUREMENT •««• .„„, .„„, <br /> <br />0358210 <br />Effluent Gross PERMIT <br />REQUIREMENT ""» """ '«"' `«•« •••'•• 10 <br />INST MAX <br />MgfL <br /> <br />Contingent <br /> <br />GRAB <br />Flow, in Conduit or thru treatment plant SAMPLE <br /> MEASUREMENT <br /> <br />50050 1 0 <br />Effluent Gross PERMIT <br />REQUIREMENT Req. Mon. <br />30DAAVG Req. Mon. <br />DAILY MX Mgal/d ««« -„'.• •••••• ,„„• <br />Monthly <br />INSTAN <br />Oil and grease visual SAMPLE .,,„, <br /> <br />MEASUREMENT .„. ..„ ,..... ... „ <br /> <br />84066 1 0 <br />Effluent Gross PERMIT <br />REQUIREMENT ••",• Req. Mon. <br />INST MAX Y=1;N=0 •«••• «--•, •»•-, »•,•• <br />Monthly <br />VISUAL <br />N MEITITLE PRINCIPAL ECUTIVE OFFICER le-.ify md"p-by°fl-1h., m.d° m°`° -d41-h'°°n .-p p"`d-A? ydi'a°°°°r p,-,- m -d- -d- with a d. 8 designed m assure that gmhfied personnel r° yrly <br /> grther W <br />Iwte the inWmution submitted. posed on my inqu of ei pawn or <br />wns who <br />< the TELEPHONE DATE <br /> <br />• ? <br />d <br />g <br />synem, or thux pes°ns dvmly respwsibk fu gatM1ain vtg the ivfwmation, the ivfotmarion submitted is. <br />m the bra °fmy knowledge and belxf, tme, accurate. aM wmplete. I am await that there are significant T <br />?j, <br />% <br />?/ 4 74 <br />c, Z <br />?/? <br /> <br />/ <br />A? peal a Cwsubmin ng Glr nfa pun, nclud ng he possibilityoff amf imp we n f know °g <br />ti / / <br />•_ ?Q <br /> <br />TYPED OR RINTED vi <br />m. SIGNA E OF PRINCIPAL EXECUTPA OFFICER OR <br /> <br />?nuuourcw AUTHORIZED AGENT AREA cos. NUMBER MMIDD/YYYY <br />_ <br />TSS & TOTAL IRON LIMITS WILL BE WAIVED, AND SETTLEABLE SOLIDS LMT APPLIED FOR <=10YR,24HR PRECIP EVENT;SETTLEABLE SOLIDS LIMIT MAYBE WAIVED FOR >10YR,24HR EVENT-SEE IA.1,PP 4-5, AND <br /> IA.2, P. 5 <br />FOR RQMNTS.TDS MONITORING-SEE PART VI.A.2.G OF RATIONALE. 30 DAY AVG. IS HIGHEST MONTHLY AVG. DURING PERIOD REPRTD. <br />EPA corm 3320.1 (Rev.01106) Previous editions may be used. Page 1