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NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) <br />DISCHARGE MONITORING REPORT (DMR) <br />PERM ITTEE NAME/ADDRESS (Include Facility Name/Location if Different) <br />NAME: Oxbow Mining LLC <br />ADDRESS: PO Box 535 <br /> Somerset, CO 81434-0535 <br />FACILITY: SAN13ORN CRK & ELK CRK MINES <br />LOCATION: 3737 HIGHWAY 133 <br /> SOMERSET, CO 81434 <br />ATTN: James T. Cooper, EVP <br />000000132 007-A <br />PERMIT NUMBER DISCHARGE NUMBER <br />MONITORING PERIOD <br />MM/DD/YYYY MM/DD/YYYY <br />FROM 02/0112011 TO 02/28/2011 <br />Y. <br />Fonn Approved <br />OMB No. 2040-0004 <br />DMR Mailing ZIP CODE: 81424-0535 <br />MINOR <br />GUNIS <br />SEDIMENT POND TO HUBBARD CREEK <br />External Outfall <br />No Dischar , <br /> <br />PARAMETER QUAN TITY OR LOADING Q UALITY OR CONC ENTRATION EO. FREQUENCY SAMPLE <br /> NAL <br /> VALUE VALUE UNITS VALUE VALUE VALUE UNITS <br />pH SAMPLE <br /> MEASUREMENT •"»- <br />0040010 <br />Effluent Gross PERMIT IM „ SU <br /> REQUIREMENT MIN <br />UM MAXIMUM Monthly INSITU <br />Solids, total suspended SAMPLE <br /> <br />MEASUREMENT , <br />»•' <br />«" <br />-'•'« <br />'»'« <br />0053010 <br /> <br />Effluent Gross PERMIT `•"" '•"•' •"•-• <br />A A <br />70 <br /> <br />mgt <br /> REQUIREMENT 30D <br />VG MX <br />DAILY Monthly GRAB <br />Solids, settleable SAMPLE <br /> <br />MEASUREMENT „„,• <br />""" <br />»"« <br />005451 0 <br /> <br />Effluent Gross PERMIT »«» »"" "»'• <br />•„•« Req. Mon. Req. Mon. mL/L <br /> REQUIREMENT 30DA AVG DAILY MX Monthly GRAB <br />Iron, total (as Fe) SAMPLE <br /> MEASUREMENT <br />0104510 <br /> <br />Effluent Gross PERMIT <br />REQUIREMENT '»"` "•"' •'• <br />•• <br />DA AV <br />O <br />ug/L <br /> 30 <br />G DAILY <br />MX Monthly GRAB <br />Oil and grease SAMPLE <br /> <br />MEASUREMENT ,„•„ <br />0358210 <br /> PERMIT "«" ""•• •„••• •••••. <br />Effluent Gross <br />REQUIREMENT 10 <br />INST MAX mg/L <br />Contingent <br />GRAB <br />Flow, in conduit or thru treatment plant SAMPLE <br /> MEASUREMENT '»"' "'«• •••••' •••-•• <br />50050 <br />1 0 <br />Effluent Gross PERMIT Req. Mon. Req. Mon. MgaVd "*•*- ••-••- <br />•••«• <br /> REQUIREMENT 30DA AVG DAILY MX Monthly INSTAN <br />Oil and grease visual SAMPLE <br /> MEASUREMENT """ "•'•• '--••• •»--• <br />84066 1 0 PERMIT Req. Mon Y=1;N=0 •"'•• <br />«•••• <br />Effluent Gross . <br />INST M »•„ •••«• <br /> REQUIREMENT AX Monthly VISUAL <br />PRINCIPAL EXECUTIVE OFFICER I C tY Y Wd P` by fl- 0.1 Nis d-mem and all -h- mem prepared undo my di-m m <br />=upm'ai°^i^-,d-n iNa.rumdeig <br />d <br />as dimgnabrw <br />e„mmei <br />m <br />e,l <br />d <br />W <br />? <br /> gy <br />, <br />p <br />p <br />yga <br />pp <br />eW <br />cvaluau Ne infomuui°v svbminaf. Baxd on my ey°zy of Ne person or persons who vumge Nc <br />- <br />d <br />` <br />= / <br />/ i TELEPHONE DATE <br /> y <br />- or <br />mx P- dircaly respons;bk f gadenng Ne inf°msado4 Ne m <br />f <br />,Tm subm;ncd u. <br />wd <br />f <br />b <br />k L <br /> <br />K <br />ea° <br />my <br />nowledge mfbelief,true, aaun¢, and wmplne.Iam .wart W, Nere ase.ignificam <br />enaldesCm sub <br />ini <br />f <br />l <br />; <br />f <br />0 ? ^ <br />i}/ <br />Q3 <br /> <br />p <br />m <br />ng <br />a <br />se <br />n <br />omuuism, fm knuaing <br />"°'"°"? <br />.7 <br />fL O <br />/? <br />T <br /> <br />TYPED O PRINTED I NATURE OF PRINCIPAL EX UTIVE OFFICER OR <br /> AUTHORIZED AGENT coa. <br />- NUMBER MMIDDlYYYY <br />COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) <br />TSS 8 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 /> IA.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 REPRTD. <br />EPA Form 3320-1 (Rev.01106) Previous editions may be used. <br />1) <br />Page 1