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NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) <br />DISCHARGE MONITORING REPORT (DMR) <br />PERMITTEENAME/ADDRESS (/nc/udeFaci/ityNameAocalionifDilfeient) <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 013A <br />PERMIT NUMBER DISCHARGE NUMBER <br />MONITORING PERIOD <br />MM/DD/YYYY MM/DD/YYYY <br />FROM 06/01/2009 TO 06/30/2009 <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 IF] <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 />0040010 PERMIT 6.5 •""' 9 SU <br />Effluent Gross REQUIREMENT MINIMUM MAXIMUM Monthly INSITU <br />Solids, total suspended SAMPLE <br /> MEASUREMENT <br />0053010 PERMIT 35 70 mg/L <br />Effluent Gross REQUIREMENT 30DA AVG DAILY MX Monthly GRAB <br />Solids, settleable SAMPLE <br /> MEASUREMENT <br />005451 0 PERMIT Req. Mon. Req. Mon, rnUL <br />Effluent Gross REQUIREMENT 30DA AVG DAILY MX Monthly GRAB <br />Iron, total (as Fe) SAMPLE <br /> MEASUREMENT <br />01045 1 0 PERMIT """ ? ?? ••„„ 3000 L M ug/L <br /> <br />Effluent Gross <br />REQUIREMENT <br />30D AVG 1 <br />X <br />DA Monthly GRAB <br />Oil and grease SAMPLE <br /> MEASUREMENT <br />0358210 PERMIT „•"' ,"••' 10 mg/L <br />Effluent Gross REQUIREMENT INST MAX Contingent GRAB <br />Flow, in conduit or thru treatment plant SAMPLE <br /> MEASUREMENT <br />5005010 PERMIT D <br />. Mon. <br />Re Mgalid ",,,. <br />Gross REQUIREMENT 4 AV <br />30 Y M <br />X Monthly <br />y INSTAN <br />Solids, total dissolved SAMPLE <br /> MEASUREMENT <br />70295 1 0 PERMIT """ Req. Mon- Req. Mon- mg/L <br />Effluent Gross REQUIREMENT QRTR AVG DAILY MX Quarterly GRAB <br />NAMEMTLE PRINCIPAL EXECUTIVE OFFICER fymdrr"-try Of Law `h"thil d«nth`m'°a.11-h""°""`pq-.d-d<myai-tim'°r <br />pm,.sonma<wra, «w n„yswna?,gnram.ssm tq.bfit onn<Ipmarlygath W <br />v <br />l <br />t <br />th <br />mf <br />TELEPHONE <br />DATE <br /> <br />G y? <br /> <br /> <br />u <br />i?L e <br />a <br />ua <br />e <br />e <br />ormmian mbmiurd. Baxd °n my iipuir)' of We P,-. °r pmwos wM menage thr <br />ys em, m hos Pmmm d cc ty pamible f ga he ng he infumutioq me of ion mb,nincd is. <br />m d,c ben of my knowledge arM behcf, tme, nwcmme, and compltte. r am aware that ,hem are signircam <br />9?0 r/Z? <br /> <br />7 <br />T _D <br />r P <br />A Femltim formbmining falx nfann.noq i-1.dmgth<poss,bi1ity.r1..aaa imp i,oamrm f., knowing <br />TYPED OR PRINTED unons. SI ATURE OF PRINCIPAL EXECU E OFFICER OR <br /> AUTHORIZED AGENT ARFA Cotta NUMBER MM/DD/YYYY <br />--.•..-.----- -°------•-----.•.•. •._?_.._....t..?.o.o..,,oar.o.aq..rr,,rQrr.?rraael <br />TSS 8 TOTAL IRON LIMITS WILL BE WAIVED, AND SETTLEABLE SOLIDS LMT APPLIED FOR <=10YR,24HR PRECIP EVENT;SETTLEABLE SOLIDS LIMIT MAY BE WAIVED FOR 110YR,24HR EVENT-SEE I.A.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 />LPA Form 3320-1 (Nev.ullub) Previous eatbons may be used. Page 1