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NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) Form Approved <br />4 <br />DISCHARGE MONITORING REPORT (DMR) OMB No. 2040-0004 <br />PERMITTEE NAME/ADDRESS (Include FacililyName2oca&on ifDilfeient) <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 014A <br />PERMIT NUMBER DISCHARGE NUMBER <br />MONITORING PERIOD <br />MM/DD/YYYY MM/DD/YYYY <br />FROM 07/01/2009 TO 07/31/2009 <br />DMR Mailing ZIP CODE: 81424-0535 <br />MINOR <br />GUNIS <br />SURF RUNOFF TO N FK GUNNISON R <br />External Outfall <br />No Discharge <br /> <br />QUANTITY OR LOADING <br />QUALITY OR CONCENTRATION NO. <br />EX <br />? <br />FREQUENCY <br />OF ANALYSIS <br />SAMPLE <br />TYPE <br />PARAMETER <br /> VALUE VALUE UNITS VALUE VALUE VALUE UNITS <br />pH SAMPLE <br /> MEASUREMENT <br />0040010 PERMIT '«"' 6.5 <br />MINIMUM •* 9 <br />MAXIMUM SU <br />Monthly <br />INSITU <br />Effluent Gross REQUIREMENT <br />Solids <br />total suspended SAMPLE <br />, MEASUREMENT <br />0053010 PERMIT 35 <br />30DA AVG 70 <br />DAILY MX m911 <br />Monthly <br />GRAB <br />Effluent Gross REQUIREMENT <br />Solids <br />settleable SAMPLE <br />, MEASUREMENT <br />005451 0 PERMIT Req. Mon. <br />30DA AVG Req. Mon, <br />DAILY MX mL/L <br />Monthly <br />GRAB <br />Effluent Gross REQUIREMENT <br />Iron, total (as Fe) SAMPLE <br />MEASUREMENT ...... ••.». »•.» ....« <br />0104510 PERMIT 3000 <br />300A AVG 6000 <br />DAILY MX ug/L <br />Monthly <br />GRAB <br />Effluent Gross REQUIREMENT <br />Oil and grease SAMPLE <br /> MEASUREMENT <br />0358210 PERMIT 10 <br />INST MAX mg/L <br />Contingent <br />GRAB <br />Effluent Gross REQUIREMENT <br />Flow, in conduit or thru treatment plant SAMPLE <br />MEASUREMENT <br />50050 1 0 PERMIT Req. Mon. <br />30DA AVG Req. Mon. <br />DAILY MX MgaVd <br />Monthly <br />INSTAN <br />Effluent Gross REQUIREMENT <br />Oil and grease visual SAMPLE ...,» »«« .».•. •••». _«.« <br /> MEASUREMENT <br />84066 1 0 PERMIT Req. Mon. <br />INST MAX Y=1:N=0 <br />,., <br />Monthly <br />VISUAL <br />Effluent Gross REQUIREMENT <br /> <br />AME/TITLE NCIP L EXECUTIVE OFFICER f cenlfy undo penalty of law that ibis docmueat sod all aaxhmans were prepared under my diravm m <br />sups a;m ;na«?w ?ew;masywadesip dw>:a?erbary,.rrwperammel <br />roperlygathe ana <br />11 TELEPHONE DATE <br /> <br /> <br />/ <br />t wg <br />evaluate the ;afomutioo wbmincd. Based w my wW wy of the person or p- m.-gc the <br />system o hose persons d enly rcspoodblc for gadxring the ;nf tioo, the imf boa submincd ;s, <br />an <br />hd z <br />th <br />e <br />b <br />o- <br />t <br />or <br />m <br />y <br />k <br />n <br />o <br />w <br />le <br />e <br />g <br />r <br />id belie <br />f, <br />n <br />v <br />e <br />, <br />s <br />u <br />w <br />a <br />u <br />- <br />d <br />«p <br />w <br />d <br />g <br />ta e ig- I-.- a ir 3, <br />/ <br /> <br /> <br /> <br /> <br />?Q 7 <br />970 <br />?, <br />?( <br />Z and itrWnsoaveat for kw-g <br />n <br />o <br />c <br />ud <br />n <br />c? <br />p <br />o <br />ry of f <br />p <br />e <br />l? <br />c <br />C <br />w <br />w <br />b <br />m <br />i <br />in <br />g <br />f <br />a <br />ls <br />e <br />i <br />a <br />g <br />n <br />, i <br />n <br />l <br />itr <br />g <br />fow <br />m <br />.tolanons. <br />SIG URE OF PRINCIPAL EXECUTIVE OFFICER OR <br /> <br />TYPED OR PRINTED <br />AUTHORIZED AGENT AREA Cod. NUMBER MM/DD/YYYY <br />COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) <br />TSS & TOTAL IRON LIMITS WILL BE WAIVED, AND SETTLEABLE SOLIDS LMT APPLIED FOR -10YR,24HR PRECIP EVENT;SETTLEABLE SOLIDS LIMIT MAY BE WAIVED FOR >10YR,24HR EVENT-SEE I.A.1,PP 4-5, AND <br /> IA.2, P. 5 <br />FOR ROMNTS.TDS MONITORING-SEE PART VI.A.2.G OF RATIONALE. 30 DAY AVG. IS HIGHEST MONTHLY AVG. DURING PERIOD REPRTD. <br />EPA Form 3320-1 (Rev.01/06) Previous editions may be used. Page 1