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NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) <br />DISCHARGE MONITORING REPORT (DMR) <br />PERM ITTEE NAMEIADDRESS (include Facility Name/Location d 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 007-A <br />PERMIT NUMBER DISCHARGE NUMBER <br />MONITORING PERIOD <br />MM/DD/YYYY MM/DD/YYYY <br />FROM 03/01/2011 TO 03/3112011 <br />Form Approved <br />OMB No. 2040-0004 <br />i <br />DMR Mailing ZIP COD 81424-0535 <br />MINOR <br />GU S <br />SEDIMENT POND TO UBBARD CREEK <br />External Outfall <br />No Discharge <br /> <br />PARAMETER <br />QUANTITY OR LOADING <br />QUALITY OR CONCENTRATION <br />NO EX 1 <br />OF ANALYSM <br />TYPE <br /> VALUE VALUE UNITS VALUE VALUE VALUE UNITS <br />Oil and grease visual SAMPLE <br /> MEASUREMENT `°"• ""•` •'• ••••? <br />84066 1 0 <br /> <br />Effluent Gross PERMIT Req. Mon. <br />` Y=1;N=0 •'-•° ••»•• «..•• ...... <br /> REQUIREMENT INS <br />f MAX Monthly VISUAL <br />7TLE <br />PRINCPALEXECUTNEOFFICER 11,161 under Prnslry of I- that this daumcnt and all attacMann were preparcd undo my direction ur <br /> <br /> <br />a s?1 ;„;na otd?,w;,h„?.,a ?;g??,?,,,?,r,,,y,,j,WP, ?nn,l oalg,m,dd <br />e >taa a me mrannl;an mbm;nld. Based an mY aynuY arm, Peaan ar Pe ao n. n anaglme <br />V'h TELEPHONE DATE <br /> <br /> <br />IR system, or muse Ixnotu duealY r V=Ibl, for gamu;ng the ;nftiun, the mf non <br />rt Nis. <br />to me b fm rmy ,..g f., and belief. true, accura e, end ""firlc. r am ewue hat hea as significant <br />Pawn,swhm,nngxnfi,mununmclWng mepnss;hliryoffneand;m <br />ri <br />f w 142M&I. 41JD <br />` [ Y Z? - Sal Z <br />a 4?o S ??? <br />PRI <br /> <br />TYPED R PRINTED p <br />vmment <br />lanom. <br />a.ug SIGNA EXEC"T"A OFFICE?tOR <br /> AUTHORIZED AGENT ?•- 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 IA.1,PP 4-5, AND <br /> IA2, 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.01106) Previous editiorts may be used. <br />Page 2