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NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) <br />DISCHARGE MONITORING REPORT (DMR) <br />PERM ITTEE NAME/ADDRESS (Include Facility Name/Location if Different) <br />NAME: Oxbow Mining LLC <br />ADDRESS: PO Box 535 <br /> Somerset, CO 81424-0535 <br />FACILITY: SANBORN CRK & ELK CRK MINES <br />LOCATION: 3737 HIGHWAY 133 <br /> SOMERSET, CO 81434 <br />ATTN: James T. Cooper, EVP <br />000000132 015-A <br />PERMIT NUMBER DISCHARGE NUMBER <br />MONITORING PERIOD <br />MM/DD/YYYY MM/DD/YYYY <br />FROM 01/01/2010 TO 01131/2010 <br />Form Approved <br />OMB No. 2040-0004 <br />DMR Mailing ZIP CODE: 81424-0535 <br />MINOR <br />GUNIS <br />DISCHARGE TO ELK CREEK <br />External Outfall <br />No Discharge <br /> <br />PARAMETER QUANTITY OR LOADING <br />QUALITY OR CONCENTRATION NO. FREQUENCY SAMPLE <br /> EX OF ANALYSIS TYPE <br /> VALUE VALUE UNITS VALUE VALUE VALUE UNITS <br />pH SAMPLE .,„., <br /> MEASUREMENT """ <br /> <br />0040010 PERMIT ...«. 6.5 «"••` 9 SU <br />Effluent Gross REQUIREMENT MINIMUM MAXIMUM Monthly INSITU <br />Solids, total suspended SAMPLE .,,..• ,•,,,, <br /> <br />MEASUREMENT •• ,,, ..,« <br />0053010 „"•" <br /> <br />Effluent Gross PERMIT 35 70 mg/L <br /> REQUIREMENT 30DA AVG MX 7D AV Monthly GRAB <br />Iron, total (as Fe) SAMPLE „„,. „,„, <br /> <br />MEASUREMENT ...... <br /> <br />01045 1 0 <br />Effluent Gross PERMIT "'«. '••"• •?'« 3000 6000 ug/L <br /> REQUIREMENT 30DA AVG DAILY MX Monthly GRAB <br />Oil and grease SAMPLE ..„.. ....„ <br /> <br />MEASUREMENT ...... ...." <br /> <br />0358210 <br />Effluent Gross PERMIT ..,a„ ,."" •",•` '•"'•' 10 mgfL <br /> REQUIREMENT INST MAX Contingent GRAB <br />Flow, in conduit or thru treatment plant SAMPLE <br /> MEASUREMENT <br /> <br />500501 0 PERMIT Req. Mon. Req. Mon. Mgalld ....,, ...••• ..,... ...... <br />Effluent Gross REQUIREMENT 30DAAVG DAILY MX Monthly INSTAN <br />Oil and grease visual SAMPLE „„.. <br /> <br />MEASUREMENT "•:.. .,„. ..... <br />•° « <br />840661 0 <br /> PERMIT Req. Mon. Y=1;N=0 •••••• •••••• <br />""•• <br />"•••« <br />Effluent Gross REQUIREMENT I T INST MAX Weekly VISUAL <br />;INCIPA EXECUTIVE OFFICER w"°ry "nae penanv m uw mac ws document md.n aruchmema were prepared under my dir Winn .rc <br />pm ainn m aecmdanee wilha ,):mm ae:ignee m ar>u a mar gnalirea pe?nnMl pp epe y gars , ana <br />vahule the infumutiun submitted <br />Baxd uo my in <br />uiry of the <br />erwn or <br />erso <br />wh <br />h <br /> <br />??? <br />TELEPHONE <br />DATE <br /> <br />s <br />. <br />q <br />p <br />p <br />ns <br />o mmiage t <br />e <br />system, or tlane persavs dncnly responsible for gathenng me information, me info-im submitted is. <br />m the bat a! my knowledge and belief we, accurate, and mmplete. 1,m aware mat d,ere are signifiomt ad M& <br />7 L <br />9z Z <br />?? <br />/ <br />0Z <br />4 <br /> <br />?S <br />permltiafor mbmg Wxinf rmatiun, iriclmfing the grssibihtyoffrie arid imprisuomen. ( knowing <br /> <br />SIGNA E OF P <br />I <br />./ <br />? 0 <br />/ t7 <br /> <br />PED R PRINTED R <br />NCIPAL EXECU OFFICER OR <br /> AUTHORIZED AGENT AREA COda NUMBER 'IMlDD/Y1'YY <br />COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) <br />30 DAY AVERAGE IS HIGHEST MONTHLY AVERAGE DURING PERIOD REPORTED. OIL & GREASE - SEE I.B.I.D. <br />eartlons may be used. Page 1