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NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) <br />DISCHARGE MONITORING REPORT (DMR) <br />PERMITTEE NAME/ADDRESS (Include Facility Name/Location if Different) <br />NAME: Oxbow Mining LLC <br />ADDRESS: PO Box 535 <br /> Somerset, CO 81424-0535 <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/YYYY <br />FROM 07/0112010 TO 07/31/2010 <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 Fl <br />PARAMETER QUAN TITY OR LOADING Q UALITY OR CONC ENTRATION NO. FREQUENCY SAMPLE <br /> EX OF ANALYSIS TYPE <br /> VALUE VALUE UNITS VALUE VALUE VALUE UNITS <br />pH SAMPLE <br /> MEASUREMENT "" <br />11-77- <br />"• <br />" <br />• <br /> <br />?. ? Z <br /> <br />5u <br /> <br />o <br /> <br />/ <br /> <br />tns <br />? <br />004001 0 <br />Effluent Gross PERMIT .«,,, 6.5 " <br />•" <br />• 9 SU <br />3o <br />i <br /> REQUIREMENT MINIMUM MAXIMUM Monthly INSITU <br />Solids, total suspended SAMPLE <br /> <br />0053010 MEASUREMENT <br />PERMIT ,... <br />""" .,.... <br />""" ..«« <br />"• • «,,.. t 1/ y"J d //3o 6.1,(. <br /> <br />Effluent Gross <br />REQUIREMENT <br />«+*,* 35 <br />30DA AVG 70 <br />DAILY MX mg/L <br />Monthly <br />GRAB <br />Solids, settleable SAMPLE <br /> <br />00 MEASUREMENT Q . ! Cp .) rh? v 3G G1 <br />b <br />5451 0 PERMIT """ •" ' <br />•t«* <br />«*** S <br />Effluent Gross REQUIREMENT 30DA AVG DAILYAMX mUL Monthly GRAB <br />Iron, total (as Fe) SAMPLE <br />"« <br /> <br /> <br />0104510 MEASUREMENT """"'" "'"'" ""'• 3 0 C 3 O o <br />O I <br />30 /! <br />CnC f <br /> <br />Effluent Gross PERMIT <br />REQUIREMENT <br />«•*•' 3000 6000 <br /> <br />Oil <br />d 30DA AVG DAILY MX Monthly GRAB <br />an <br />grease SAMPLE <br /> MEASUREMENT «M' •••«• ,•«-, ««.. «,«. O ?t 6 <br />-L <br />035821 0 PERMIT """ ""•• ••" • y, <br /> <br /> <br />Effluent Gross <br /> <br />REQUIREMENT <br />10 <br />mg/L - <br /> <br />INST MAX Contingent GRAB <br />Flow, in conduit or thru treatment plant SAMPLE <br /> <br />500501 0 <br />MEASUREMENT U <br />• 1 e / y <br />««« <br />«,... <br />«.«. <br />«..« <br />/ 3 0 <br /> <br /> <br />Effluent Gross <br />PERMIT <br />REQUIREMENT <br />Req. Mon. <br />30DA AVG <br />Req. Mon. <br />DAILY MX <br />Mgal/d <br /> <br />«,,,, <br /> <br />«•??+ <br /> <br />«•+t~ <br /> <br />??•«• 5 <br /> <br />Oil and grease visual <br />SAMPLE Monthly INSTAN <br /> <br /> <br />840 MEASUREMENT <br />o <br />1?3e <br />?fsk4Q <br />66 1 0 <br />Effluent Gross PERMIT Req. Mon. Y=1;N=0 <br />•e*«~ <br />«??"? <br />?« <br />???«+ <br /> REQUIREMENT INST MAX Mouthy VISUAL <br />a',_/ s - <br />7uoJ <br />/? <br />? 0 <br />1 <br /> ?C <br />/9o Gz?So <br />ME/TITLE PRINCIPAL EXECUTIVE OFFICER 1eerrityumlerperetry oft-d'othis dwumentaod ullattochsrenrs were psepurcd nder mydu-ti-r <br /> sul,vision inaccotdan<e with n temdesignedrousnr<uhnc ynyir,d p<?m"E <br />periy gnm<rd,d <br />evaluate the ose peaton submitted. Bored le or whcriy of the person or penons mabage the <br />tysttm or hors persona duc rly mpowib f <br />a he o <br />be n' <br />ti <br />d <br />f <br /> <br />L <br />G <br />[ <br />? TELEPHONE DATE <br /> <br /> <br />(? s s/ 5 f <br />' g <br />g <br />o ora <br />on, <br />e n <br />o bm is. <br />P the bees of my khnwledgee and belief, toe, accumtc, and compl<m. 1 am :2T dmt there art significam <br />co Idea for s ubmittng fals inlbrmauoq i?luding the Poseibiliryo f trace mprimnment for krowv, <br />"' T <br />! <br />? <br />)IGN <br />R <br />9 ?? • g zg? a^?Q 6 <br />J O <br />O? ' <br />'? a? <br />TYPED OR PRINTED g <br />moons. ATU <br />E OF P CIPAL EXECUTIVE OFFICER OR , <br /> AUTHORIZED AGENT AREA caw. NUMBER LjLnnrfyyy <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 <br />FOR RQMNTS.TDS MONITORING-SEE PART VI.A.2.G OF RATIONALE <br />24HR EVENT-SEE L <br />30 DAY AVG <br />IS HIGHES A <br />1 <br />PP 4 <br />5 <br />AND L <br /> <br />. <br />. <br />T MONTHLY AVG. DURI , <br />NG PERIOD REPRTD. . <br />, <br />- <br />, <br />A.2, P. 5 <br />EPA Form 3320.1 (Rev.01106) Previous editions may be used. <br /> Page 1