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<br />NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) Form Approved <br />DISCHARGE MONITORING REPORT (DMR) OMB No. 2040-0004 <br />PERMITTEE NAME/ADDRESS (Include Facility Name/Location if Different) <br />NAME: Oxbow Mining LLC <br />000000132 010-A DMR Mailing ZIP CODE: 81424-0535 <br />ADDRESS: PO Box 535 <br />PERMIT NUMBER DISCHARGE NUMBER MINOR <br />Somerset, CO 81424-0535 <br />FACILITY: SANBORN CRK & ELK CRK MINES GUNIS <br />LOCATION: 3737 HIGHWAY 133 MONITORING PERIOD SEDIMENT POND TO SANBORN 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 /> <br />PARAMETER QUAN TITY OR LOADING Q UALITY OR CONC ENTRATION EO. F A SAM <br />PE E <br /> O <br />NALYS S P <br /> VALUE VALUE UNITS VALUE VALUE VALUE UNITS <br />pH SAMPLE <br /> MEASUREMENT `•"" """ "'»' <br />0040010 <br /> <br />Effluent Gross PERMIT •...•• „„.. • <br />, <br />IM <br />=_•»• <br />SU <br /> REQUIREMENT MIN <br />UM MAXIMUM Monthly INSITU <br />Solids, total suspended SAMPLE <br /> MEASUREMENT "'•" " „' """ <br />0053010 <br /> <br />Effluent Gross PERMIT """ " ••' <br />?••••= <br />35 <br />mg/L <br /> REQUIREMENT 30DA <br />AVG DAILY Monthly GRAB <br />Solids, settleable SAMPLE <br /> <br />MEASUREMENT ,,,,,, <br />005451 0 <br /> <br />Effluent Gross PERMIT <br />REQUIREMENT "»" "`»` `»'•• <br />•»•„ Req. Mon. Req. Mon. mL/L <br /> 30DA AVG DAILY MX Monthly GRAB <br />Iron, total (as Fe) SAMPLE <br /> MEASUREMENT <br />0104510 <br /> <br />Effluent Gross PERMIT ,,,,,, »"» •"•• <br />• <br />»•_•• <br />DA A <br />ug2 <br /> REQUIREMENT 30 <br />VG DAILY MX Monthly GRAB <br />Oil and grease SAMPLE <br /> <br />MEASUREMENT .,•„ <br />""" <br />0358210 <br /> PERMIT "`"' »•"' •»•» _»••• •_»,. <br />Effluent Gross <br />REQUIREMENT 10 <br />INST MAX <br />mglL <br />Contingent <br />GRAB <br />Flow, in conduit or thru treatment plant SAMPLE <br /> MEASUREMENT """ """ »••» •--•» <br />50050 <br />1 0 <br />Effluent Gross PERMIT <br />REQUIREMENT Req. Mon. <br />30DA AVG Req. Mon. <br />DAILY MX MgaUd •" •_•*•• <br />•„»• <br />»+?• <br /> Monthly INSTAN <br />Solids, total dissolved SAMPLE <br /> <br />MEASUREMENT ,,,•„ <br />»`„• <br />"" ' <br />""" <br />702951 0 <br /> <br />Effluent Gross PERMIT <br />REQUIREMENT <br />»»• Re q. Mon. R Mon. <br />A m L <br /> 30DA AVG D <br />LY MX Quartedy GRAB <br />AMEITITLE PRINCIPAL EXECUTIVE OFFICER "mryun0"P-YIt wwmsdocnmrntandallaaadv uwerepmparyundermydi-ionor TELEPHONE DATE <br />supcnnsiun in a-rdanco with a syttcm designed m assure Nu quafifed personnel gaer uW <br />evaluam the ivfornwion subminrd. Based on my iuyuiry of the the person or persons wlw aulyuage ibthe <br />rynem, or 1h.. pcrsoas dirmly responsible fa gathering Z n'the infomurion submitted is. <br />to dte best of my knowledge and bdmr tsuc, accunue, and -Plete. I am awue dat theca arc significsn 6 lO 6/ ' A /a <br />por, e (? , Pe ^ifw -b-14 [alsc frmatiua. including the Possibility of f a nd imprisuumem Grr Imuwin a / V•a <br />TYPED OR PRINTED o S NATURE OF PRI IPAL EXECUTIVE OFFICER OR <br />AUTHORIZED AGENT AREA Cod. NUMBER MMI DtYYYY <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 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.01f06) Previous editions may be used. <br />Page 1