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NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) Form Approved <br /> DISCHARGE MONITORING REPORT (DMR) OMB No. 2040-0004 <br />PERMITTEENAME/ADDRESS (Include Facility NarnelLocation if Different) <br />NAME: Oxbow Mining LLC <br /> <br />ADDRESS: PO Box 535 000000132 012-A DMR Mailing ZIP CODE: 81424-0535 <br />Somerset, CO 81424-0535 PERMIT NUMBER DISCHARGE NUMBER MINOR <br />FACILITY: SANBORN CRK & ELK CRK MINES GUNIS <br />LOCATION: 3737 HIGHWAY 133 MONITORING PERIOD SEDIMENT POND TO ELK CREEK <br />SOMERSET, CO 81434 MM/DD/YYYY MM/DD/YYYY External Outfall <br />ATTN: James T. Cooper, EVP FROM 09/01/2010 TO 09/30/2010 No Discharge <br />PARAMETER QUANTITY OR LOADING QUALITY OR CONCENTRATION NO. FREQUENCY SAMPLE <br /> EX OF ANALYSIS TYPE <br /> VALUE VALUE UNITS VALUE VALUE VALUE UNITS <br />pH SAMPLE <br />» <br /> MEASUREMENT "»" """ "•" <br />0040010 <br />Effluent Gross PERMIT <br />•*,»• <br />IM <br />~•„• 9 SU <br /> REQUIREMENT MIN <br />UM MAXIMUM Monthly INSITU <br />Solids, total suspended SAMPLE <br /> MEASUREMENT •""' """ ""'• <br />0053010 PERMIT ""•• •'•••• +++++• <br />Effluent Gross REQUIREMENT 30DA AVG DAI Y 70 <br />M <br />mg/L Monthly GRAB <br />Solids, settleable SAMPLE <br /> MEASUREMENT <br />0054510 PERMIT """ +,,,, <br />f••»•~•? <br />Effluent Gross REQUIREMENT 30DA AVG DAIR. Mon. LY MX mIJL Monthly GRAB <br />Iron, total (as Fe) SAMPLE <br /> MEASUREMENT <br />0104510 PERMIT <br />.,.+.+ <br />""'" '•'•'" ••••• <br />Effluent Gross REQUIREMENT 300A AVG DAILY MX ug/L Monthly GRAB <br />Oil and grease SAMPLE <br /> MEASUREMENT " " """ "•'"' "•••• <br />0358210 PERMIT """ •'•"` ••,,,, ••*••• •+..,. <br />Effluent Gross <br />REQUIREMENT 10 mg/L <br /> <br />Flow, in conduit or thru treatment plant <br />SAMPLE INST MAX Contingent GRAB <br /> MEASUREMENT """` •`•`•• ••••» -•••- <br />50050 1 0 <br />Effluent Gross PERMIT Req. Mon. Req. Mon. Mgal/d •••••• <br />30DA AVG »»-• ..,... <br />?••• <br /> REQUIREMENT DAILY MX <br /> <br />Solids, total dissolved <br />SAMPLE Monthly INSTAN <br /> MEASUREMENT •,»» »•• ,»,» s ?V U O O ( / <br /> <br />7029510 <br />PERMIT <br />""" """ •••••• •»•» 4?0 <br />lff <br />Effluent Gross REQUIREMENT QRTR AVG I <br /> DAILY <br />MX Quarterly GRAB <br />NAME/TITLE PRINCIPAL EXECUTIVE OFFICER I-ify °'a"penalty°n'w'ba"bi.e°`n""°' d 11" ° t,, prep=undumyaimamnm- <br />alwt, °n in again,. n a aya em d my to arame mat quahred pe sonxl mp.rly gatnn and _ TELEPHONE DATE <br />evalwle one infmwi°° mitted. Baxa - un y ingwry of the person ur persons who vwnage the r? <br />system,r thf myk dge sub bueNyand potssible forgathering the informmion, the mfonsutmn submitted i, I ' 1 .? ` <br />• r? ?' 1 /` to the best openowns led belief, true.101 <br />nccunie, and wmplete. I am awuc that d. are siFn'fiw s 1 <br />X V I/e jl - p?talties for submnsing felx inf nsuti°n, including the p -bihry? of fm, atW impris°nmem for kn?uw g 74 J [70 to <br />?Q 0 / LQ? V <br />elanona. IGNATURE OF NCIPAL EXECUTIVE OFFICER OR <br />TYPED OR PRINTED AUTHORIZED AGENT u+EAcea. NUMBER - MMIDD/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 LAA RP 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. <br />Page 1