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NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) <br />DISCHARGE MONITORING REPORT (DMR) <br />PERMITTEENAME/ADDRESS (117cludeFadlityName2oca&onifDi/fefent) <br />NAME: Oxbow Mining LLC <br />ADDRESS: PO Box 535 <br /> Somerset, CO 81424-0535 <br />FACILITY: SANBORN CRK 8t ELK CRK MINES <br />LOCATION: 3737 HIGHWAY 133 <br /> SOMERSET, CO 81434 <br />ATTN: James T. Cooper, EVP <br />000000132 012A <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 />SEDIMENT POND TO ELK CREEK <br />External Outfall <br />No Discharge IZI <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 <br />settleable SAMPLE <br />, MEASUREMENT <br />005451 0 PERMIT Req. Mon. Req. Mon, mUL <br />Effluent Gross REQUIREMENT 30DA AVG DAILY MX Monthly GRAB <br />Iron, total (as Fe) SAMPLE <br /> MEASUREMENT <br />010451 0 PERMIT "` """ "" ' ""•' 3000 6000 ug/L <br />Effluent Gross REQUIREMENT 30DA AVG DAILY MX Monthly GRAB <br />Oil and grease SAMPLE <br /> MEASUREMENT <br />0358210 PERMIT """ """ '„"• 10 <br />L <br />Effluent Gross REQUIREMENT INST MAX Contingent 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 />Solids <br />total dissolved SAMPLE ,,,,,, <br />, MEASUREMENT <br />702951 0 PERMIT .-.- „„„ """ Req. Mon. Req. Mon. mg/L <br />1 <br />Effluent Gross REQUIREMENT QRTR AVG DAILY MX Quarterly GRAB <br />NAME/TITLE PRINCIPAL EXECUTIVE OFFICER Ice itY=d°peoahy of law that this document mtd aal attactu-ss P'%-.d miner my din tion ar <br />su <br />mtstan in aecurd. <br />nh <br />-te <br />d <br />d <br />m <br />br< <br />TELEPHONE <br />DATE <br /> . <br />p <br />. <br />,.? <br />n, <br />-gnc <br />to- <br />.ty <br />dP naelp.p yg.a- ad <br />evalwm the iafortnation sub <br />in <br />d <br />B <br />d <br />i <br />b <br />f <br />h <br /> <br /> <br />? <br />Jim <br />m <br />e <br />. <br />ase <br />oa my <br />tqu <br />y o <br />t <br />r person or Persons who menage the <br />syssesa or these pcna? dixmly Will ibl, for gsth. -d she in(omuaon, she iatrion submincd it. <br />the hw of my knowlcd a eM belief, -, accuntc, and -pkte. 1 am aware that tere h ere significant <br />? <br /> <br /> <br />29 ?,?? <br /> <br /> <br />D _ Q9 <br /> aeer«eanattagr, <br />aeiarosmatioa,indudingtbepos3dily ff and,nP,;ratm,eatf mnwins <br /> <br />o anan. SI N TUREOFPRINCIPAL EXE TIVEOFFICEROR <br />TYPED O PRINTED AUTHORIZED AGENT AREA cod• NUMBER MMIDDrrM <br />TSS & TOTAL IRON LIMITS WILL BE WAIVED, AND SETTLEABLE SOLIDS LMT APPLIED FOR <=10YR,24HR PRECIP EVENT;SETTLEABLE SOLIDS LIMIT MAYBE WAIVED FOR >10YR,24HR EVENT-SEE I.A.1,PP 4-5, AND <br /> I.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.01106) Previous editions may be used. Page 1