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NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) <br />DISCHARGE MONITORING REPORT (DMR) <br />PERM ITTEE NAME/ADDRESS (Include FadW Name/Location if Different) <br />NAME: Oxbow Mining LLC <br />ADDRESS: PO Box 535 <br /> Somerset, CO 81434-0535 <br />FACILITY: SANBORN CRK & ELK CRK MINES <br />LOCATION: 3737 HIGHWAY 133 <br /> SOMERSET, CO 81434 <br />ATTN: James T. Cooper, EVP <br />000000132 012-A <br />PERMIT NUMBER DISCHARGE NUMBER <br />MONITORING PERIOD <br />MM/DD/YYYY MM/DD <br />/YYYY <br />FROM 11/01/2010 TO 11/30/2010 <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 <br /> <br />PARAMETER QUAN TITY OR LOADING Q UALITY OR CONC ENTRATION NO. FREQUENCY SAMPLE <br /> E( OF ANALYSIS TYPE <br /> VALUE VALUE UNITS VALUE VALUE VALUE UNITS <br />pH SAMPLE <br /> <br />MEASUREMENT ,•••„ <br />»»•" <br />'•"'• <br />•~•~ <br />0040010 <br /> PERMIT '•'»' """ ...» a,.... <br /> <br />Effluent Gross <br />RE <br />IM 9 SU <br /> QUIREMENT MIN <br />UM MAXIMUM Monthly INSITU <br />Solids, total suspended SAMPLE <br /> <br />MEASUREMENT -„- <br />» <br />•••'' <br />""" <br />"'•" <br />0053010 <br /> PERMIT »•... ~-•"• <br />»••'" <br />•»"?* <br />Effluent Gross REQUIREMENT 30D35 VG DAILY Mx mg/L Monthly GRAB <br />Solids, settleable SAMPLE <br /> <br />MEASUREMENT „- <br />„• <br />»"" <br />""" <br />•"~' <br />0054510 <br /> PERMIT """` ~"`• <br />...»• <br />~ <br />Effluent Gross REQUIREMENT 30DA AVG DA LY MX m? Monthl GRAB <br />Iron, total (as Fe) SAMPLE y <br /> <br />MEASUREMENT •••., <br />„„" <br />"••" <br />""" <br />0104510 <br /> PERMIT ""'• ~ <br />Effluent Gross REQUIREMEN T 30DA AVG DAILY MX u M <br />thl GR <br /> <br />Oil and grease <br />SAMPLE on <br />y AB <br /> MEASUREMENT "'•" "•"' '~'~ •~~• <br />03582 <br />10 <br /> PERMIT "'•" '•~" » <br />•~ • .„•» »•••• <br />Effluent Gross uentross <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 /> PERMIT Req. Mon. Req. Mon M <br />al/d <br />» <br />• <br />Effluent Gross 30DA AVG . <br />DAI g ••' »•»• <br /> REQUIREMENT LY MX M <br />thl <br /> <br />Oil and grease visual <br />SAMPLE on <br />y INSTAN <br /> <br />MEASUREMENT „•,,, <br />"'•" <br />'~ •• <br />-•-••- <br />».». <br />84066 1 0 <br /> PERMIT """ Reeqq Mon Y=1 <br />N=0 <br />•?~ <br />»•» <br />Effluent Gross . <br />I ; •~ ?? <br /> REQUIREMENT NST MAX Monthly VISUAL <br /> <br />ITLE PRINCIPAL EXECUTIVE OFFICER b"'h ''°"""""'"d a° a ?^ n•ns. ?n a <w«d nrd aunn m <br />supervision m accordamx W? a >ysa» deigned w assure rbn qualified <br />ersonnel <br />- <br />r <br />mb <br />d <br /> P <br />P <br />Pe <br />y g <br />er an <br />e•ai?,awe?r i? abm,nm.Baed mmymWry runePer«,n-,Pam,.1.n, se the TELEPHONE DATE <br /> <br /> <br />C, ' ` <br />re sYv dwse pmons dbecry pomible for gadxring rbs iofomwuw, drc inf-im submmrd is. <br /> <br />yt of m>. lm.M- lge vM bekrf, uue, accurvrc, mrd -mpkee. I am ewue mt <br />Wigni ' <br />Pw orie fa subminmg false ivfo muion, nclud ng rbe puss b liry-r! aM <br /> <br />9 0 9 2 <br />-5Z <br />1 <br />J <br />/Z /o 3 b <br /> r <br />Icwn <br />Iinn <br /> <br />S ] <br />1 e <br />TYPED OR PRINTED IGNA E OF PRINCIPAL EXECUTPA OFFICER OR <br /> AUTHORIZED AGENT AREwcod. NUMBER <br />MM/DD/YYYY <br />COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) <br />T SS S 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 />EPA Forth 3320-1 (Rev.01106) Previous editions may be used. <br />Page 1