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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 012-A <br />PERMIT NUMBER DISCHARGE NUMBER <br />MONITORING PERIOD <br />MM/DD/YYYY MM/DD/YYYY <br />FROM 04/01/2010 TO 04/30/2010 <br />PARAMETER QUANTITY OR LOADIN <br /> VALUE VALUE <br />pH SAMPLE "_ <br /> MEASUREMENT "' """ <br />0040010 <br /> <br />Effluent Gross PERMIT <br />••«•? <br /> REQUIREMENT <br />Solids, total suspended SAMPLE <br /> MEASUREMENT <br />0053010 <br /> <br />Effluent Gross PERMIT """ ••• <br />«• <br /> REQUIREMENT <br />Solids, settleable SAMPLE <br />" <br />F <br /> MEASUREMENT "" """ <br />0054510 <br /> <br />Effluent Gross PERMIT """ <br />!e«.. <br /> REQUIREMENT <br />Iron, total (as Fe) SAMPLE <br />" <br /> MEASUREMENT '" <br />0104510 <br /> <br />Effluent Gross PERMIT . <br />.»... <br /> REQUIREMENT <br />Oil and grease SAMPLE "'_" <br /> MEASUREMENT <br />0358210 <br /> <br />Effluent Gross PERMIT """ <br />•t«" <br /> REQUIREMENT <br />Flow, in conduit or thru treatment plant SAMPLE <br /> MEASUREMENT <br />50050 1 0 <br />s=?,,,,, r..,,,,_ <br />, G <br />u PERMIT Req. Mon. Ran. M <br />nn <br />ross <br />" <br />cn REQUIREMENT 30DA AVG _ <br />DAILY MX <br />Oil and grease visual SAMPLE <br /> MEASUREMENT <br />8406610 <br />Effluent Gross PERMIT """ Re Mon. <br />S <br /> REQUIREMENT IN <br />T MAX <br />Form Approved <br />OMB No. 2040-0004 <br />DMR Mailing ZIP CODE: 81424-0535 <br />MINOR <br />GUNIS <br />SEDIMENT POND TO ELK CREEK <br />External Outfall <br />No Discharge <br /> QUALITY OR CONCENTRATION NO. <br />EX FREQUENCY <br />OF ANALYSIS SAMPLE <br /> <br />UNITS <br />VALUE <br />VALUE <br />VALUE <br />U TYPE <br /> NITS <br /> <br />.».» 6 <br />5 .,«« <br /> . <br />MINIMUM g <br />MAXIMUM SU <br /> Monthly INSITU <br /> <br />.»«. ...«. <br /> 35 <br />30DA AVG 70 <br />DAILY MX <br />L <br /> Monthly GRAB <br /> <br />".." "`•" <br /> Req. Mon. <br />30DA AVG Req. Mon. <br />DAILY MX mUL <br /> Monthly GRAB <br /> <br /> <br /> 3000 <br />30DA AVG <br />DAILY MX <br />ugh <br /> Monthly GRAB <br /> <br />..».. .».« «»» <br /> 10 <br />INST MAX mg/L <br /> Contingent GRAB <br /> <br /> <br /> <br /> Monthly (NSTAN <br /> <br /> <br /> <br /> Monthly VISUAL <br />r me/ 1 I 1 LC MINUIY L EXECUTIVE OFFICER '-' unaer penaty of law that this document and all anxhments x'ern prepmed order my di-Im or <br />.Pcrvuion in ? rd-. svi1h a ?ntem designed m assure that yaalira peraonneWptapery ga,hm and DATE <br />s evaluate the infurmmioo submitted. eased y uquirv of the person or Pero ho ge the era ` <br />TELEPHONE <br />sys nor hose p no di -dy mpo ible for ga tiering the nfomu on he oo submi ed is, <br />7 yn,/` a <br />MEL ' to th< Fe.t of my Wowl Wgr ud behef. I- -, and -plne. I am awve thu dxre arc significant <br />Cr /?C m hilt sf ur submn,mg Cake information, including the p,ssibilay of It and impruonmenr for ktwwing 9?) Qz-S/zZ 9-47- /0 <br />9 d TYPE OR PRINTED a SIGN RE OF PRINCIPAL EXECU OFFICER OR <br />AUTHORIZED AGENT AttEncod. NUMBER MM/DD/Y1YY <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 /> 1.A.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 Form 3320.1 (Rev,01/06) Previous editions may be used. <br />Page 1