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NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) Form Approved <br />DISCHARGE MONITORING REPORT (DMR) OMB No. 2D40-0004 <br />PERM ITTEE 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: Box 535 <br />Somerset, CO 81434-0535 PERMIT NUMBER DISCHARGE NUMBER MINOR <br />So <br />FACILITY: SANBORN CRK & ELK CRK MINES GUNIS <br />LOCATION: MONITORING PERIOD SEDIMENT POND TO SANBORN CREEK <br />3737 HIGHWAY 133 <br />MM/DD/YYYY MM/DD/YYYY External Outfall <br />SOMERSET, CO 81434 <br />FROM 12/01/2010 TO 12/31/2010 No <br />ATTN: James T. Cooper, EVP /""' Discharge <br />PARAMETER QUAN TITY OR LOADING Q UALITY OR CONC ENTRATION EX FANU <br />LYS P <br />STY <br />E <br /> O <br />A <br />SIIS P <br />E <br /> VALUE VALUE UNITS VALUE VALUE VALUE UNITS <br />pH SAMPLE <br /> MEASUREMENT <br />0040010 <br /> <br />Effluent Gross PERMIT --- """ •'•«' 6.5 <br />~ <br />~•• 9 SU <br /> REQUIREMENT MINIMUM MAXIMUM Monthly INSITU <br />Solids, total suspended SAMPLE <br /> MEASUREMENT <br />0053010 <br /> <br />Effluent Gross PERMIT """ "~•` •~~• <br />•« <br />A <br />70 <br /> <br />mgt <br /> REQUIREMENT 30DA <br />VG MX <br />DAILY Monthly GRAB <br />Solids, settleable SAMPLE <br /> MEASUREMENT <br />0054510 <br /> <br />Effluent Gross PERMIT <br />REQUIREMENT """ ""'• ~"" <br />*~•~ <br />30DA AVMon. G <br />DAILY MX <br />mL2 <br />Monthly <br />GRAB <br />Iron, total (as Fe) SAMPLE <br /> <br />MEASUREMENT „••„ <br />0104510 <br /> <br />Effluent Gross PERMIT <br />REQUIREMENT """ '«"' •'•'« •• <br />30DA AVG <br />DAILY MX <br />ug2 <br />Monthly <br />GRAB <br />Oil and grease SAMPLE <br /> MEASUREMENT <br />0358210 """ `•«" •«.'• <br />Effluent Gross PERMIT <br />REQUIREMENT •~.•a •••••• INST MAX mgt Contingent GRAB <br />Flow, in conduit or thru treatment plant SAMPLE <br /> MEASUREMENT `•"" ~~~ --•--- <br />5 <br />0050 1 0 <br />Effluent Gross PERMIT Req. Mon. <br />30DA AVG Req. Mon. Mgal/d "•••• -•»*• <br />~,•. <br />•..~ <br /> REQUIREMENT DAILY MX Monthly INSTAN <br />Solids, total dissolved SAMPLE <br /> MEASUREMENT <br />70295 1 0 <br /> <br />Effluent Gross PERMIT <br />REQUIREMENT "•"' """ "" ' <br />... <br />«• Req. Mon. <br />30DA AVG Req. Mon. mg/L <br /> DAILY MX Quarterly GRAB <br />P"ECUTIVEOFFICER """""" P°"'y°"'"na,m':°°""°"°'°°•"" mrd;-,i°„°r <br />suprnuron m =d- with a sywndesigned massurethxt qualified pen?mnel PProperly h. .w <br /> <br />gz <br />evaluate the <br />-11-11.11 submined <br />Basedu° m <br />in <br />ui <br />of th <br /> <br /> <br />1 <br />TELEPHONE DATE <br /> <br />DATE <br />• . <br />y <br />q <br />ry <br />e person <br />or persons .iar the <br />sys , or those Pers dd-4 po¢sible fu gad-tng me io <br />nf <br />-- dte eu bon mbmined is. .r/ <br />N <br />& <br />' 51 t <br />m <br />k <br />m -f <br />peru <br />ltin Cwf wb fal <br />tmuin <br />i m h <br />d <br />? <br />2n& <br />=? <br />9 0 4 <br />5'/z z <br /> <br />o l <br /> g <br />rrr, <br />i <br />ing 16e puss b <br />.1yf f <br />ouK anJ imprisunmem f r I <br />awt <br />ing <br />t'°''n°'° a <br />• <br /> <br />ED OR PRINTED SIGNAT E OF PRINCIPAL EXECUTI OFFICER OR <br /> AUTHORIZED AGENT AREA Cod. NUMBER MM/DD/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 IA.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 /> <br />EPA Form 3320.1 (Rev.01106) Previous editions may be used. <br />Page 1