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NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) <br />DISCHARGE MONITORING REPORT (DMR) <br />PERM ITTEE NAM E/ADDRESS (Include Faci/ityNa1n&Zocationi-Dillerent) <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 017A <br />PERMIT NUMBER DISCHARGE NUMBER <br />MONITORING PERIOD <br />MM/DD/YYYY MM/DD/YYYY <br />FROM 06/0112009 TO 06/30/2009 <br />Form Approved <br />OMB No. 2040-0004 <br />DMR Mailing ZIP CODE: 81424-0535 <br />MINOR <br />GUNIS <br />SURF RUNOFF TO N. FK GUNIS RIV <br />External Outfall <br />No Discharge <br />PARAMETER QUANTITY OR LOADING QUALITY OR CONCENTRATION EX FREQUENCY <br />OF ANALYSIS STYPPEE <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 />00530 1 0 PERMIT „,,,. '•"„ "'„' •„,,, 35 70 mg/L <br />Effluent Gross REQUIREMENT 300A AVG DAILY MX Monthly GRAB <br />Solids <br />settleable SAMPLE <br />, MEASUREMENT <br />00545 1 0 PERMIT »»» „'•" '?"' •?„ M mUL <br /> <br />Effluent Gross <br />REQUIREMENT 3DA AVG D aL <br />MX Monthly GRAB <br />Iron, total (as Fe) SAMPLE <br /> MEASUREMENT <br />01045 1 0 PERMIT ?`„ "„» "'„• „"•• 3000 6000 <br />ug/L <br /> <br />Effluent Gross <br />REQUIREMENT AVG DAILY MX Monthly GRAB <br />Oil and grease SAMPLE <br /> MEASUREMENT <br />035821 0 PERMIT """ "„" '•'••• "„„ ••• 10 M911 - <br /> <br />Effluent Gross <br />Effluent <br />REQUIREMENT INS7 <br />MAX GRAB <br />Flow, in conduit or thru treatment plant SAMPLE <br />MEASUREMENT <br />500501 0 PERMIT Req. Mon. Req. Mon. Mgal/d „»„ ••'••• »'••• •••••• <br />Effluent Gross REQUIREMENT 30DA AVG DAILY MX Monthly INSTAN <br />total dissolved <br />Solids SAMPLE <br />, MEASUREMENT <br />702951 0 PERMIT •••`•• •""' •""• „„ <br />Req. Mon. Mon. <br />mg/L <br />Effluent Gross REQUIREMENT OR <br />T AVG MX <br />DAILY Quarter) <br />Quarterly GRAB <br /> <br />NAME/TITLE PRINCIPAL EXECUTIVE OFFICER I certify ond- peoaIly of law that this doamcot aW all attach- veto prepared W. my dbectian or <br />d <br />i <br />h <br />i <br />TELEPHONE <br />DATE <br /> <br />supervtsron m a:c <br />., <br />.- w <br />t <br />a stem des <br />? <br />ged assure Wa quahredpcrwd proply ratho ana <br />er <br />h <br />' /• <br /> o <br />ero the mfortna:ioo mbmiued. don my <br />q ry f the f- personsv1ro ge the <br />system, m chose persat di, -d responsible f« gathering the inocri ort the that n sobmincd u, <br />ben ormy know4edg and behcf, me, auu a e, -d -Pl <br />c. I am aware that he a uc signihc <br />O rt?(]' ?i ?? <br /> <br />7 7 7 <br />m ?J O D <br /> <br />l/ <br />C r S f p [ <br />g <br />jw M rr aM ttp ral.e nrn mati?n ?h ams ?e pns:bola) hih? err e, d imp :anmmt rr w n <br /> % S G TURE OF PRINCIPAL EXEC E OFFICER OR <br />TYPED OR PRINTED AUTHORIZED AGENT AREA Code NUMBER MWDD/YYYY <br />laVmmCly t o NIYU GAr LHplril IVty Vr Ht9r vouL i jumo tmererence all anaenmencs nerel <br />TSS & TOTAL IRON LIMITS WILL BE WAIVED, AND SETTLEABLE SOLIDS LMT APPLIES FOR <=10YR,24HR PRECIP EVENT;SETTLEABLE SOLIDS LIMIT MAY BE WAIVED FOR >10YR,24HR EVERT-SEE I.A.1,PP 4-5, AND <br /> I.A.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 RPTD <br />EPA Form 3320-1 (Rev.01106) Previous editions may be used. Page 1