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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 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 010-A <br />PERMIT NUMBER DISCHARGE NUMBER <br />MONITORING PERIOD <br />MM/DDIYYYY MM/DD/YYYY <br />FROM 05/01/2010 TO 05/3112010 <br />Form Approved <br />OMB No. 2040-0004 <br />DMR Mailing ZIP CODE: 81424-0535 <br />MINOR <br />GUNIS <br />SEDIMENT POND TO SANBORN CREEK <br />External Outfall <br />No Discharge <br /> NO. FREQUENCY SAMPLE <br /> QUANTI TY OR LOADING QU ALITY OR CONCENTRATION EX OF ANALYSIS TYPE <br />PARAMETER <br />VALUE <br />VALUE <br />UNITS <br />VALUE <br />VALUE <br />VALUE <br />UNITS <br /> <br />pH SAMPLE .•.... ».... ...... ...». <br /> MEASUREMENT 9 SU <br />0040010 PERMIT <br />UIREMENT »???• »??? ?»-» 6.5 <br />MINIMUM MAXIMUM Monthly INSITU <br />Effluent Gross REQ <br />Solids, total suspended SAMPLE <br />EMENT .»... ••„•• """ ""•' <br /> <br />E <br /> MEASUR ...... 35 70 m L <br />00530 1 0 <br />Effluent Gross PERMIT <br />REQUIREMENT ...... ...... ...... 30DA AVG DAILY MX Monthly GRAB <br /> <br />Solids, settleable SAMPLE <br />EMENT <br />U ...... ...••• ...... """ <br /> MEAS <br />R « •»•„ n <br />M <br />R Mon <br />Req mUL <br /> <br />0054510 <br />PERMIT <br /> <br />IREMENT <br />???•?? <br />?????? <br />f»? . <br />o <br />eq. <br />30DAAVG . <br />. <br />. <br />DAILY MX <br />Monthly GRAB <br />Effluent Gross REQU <br />Iron, total (as Fe) SAMPLE <br />SUREMENT .».« •- """ <br /> MEA ?•f»• 3500 7000 ug/L <br />01045 1 0 PERMIT <br />REQUIREMENT •...'. ...... «•»* 30DA AVG DAILY MX Monthly GRAB <br />Effluent Gross <br />Oil and grease SAMPLE <br />MEASUREMENT ....•• ••„• •«"• """ ... <br />/L <br />03582 1 0 PERMIT <br />REQUIREMENT •• 10 <br />INST MAX mg Contingent GRAB <br />Effluent Gross <br />Flow, in conduit or thru treatment plant SAMPLE <br />MEASUREMENT ...... ..... <br /> ...... <br />SUUbU 1 U <br />Effluent Gross PERMIT <br />REQUIREMENT Red. Mon. <br />30DA AVG Req. Mon. <br />DAILY MX MgaUd <br /> <br />» Monthly INSTAN <br />Oil and grease visual SAMPLE <br />MEASUREMENT ...... ""' <br />'•"" """ <br />„"" •`•`« <br />„„., ?? <br />,. ... <br />84066 1 0 <br />Effluent Gross PERMIT <br />REQUIREMENT """ <br /> <br />F Req. Mon. <br /> <br />INST MAX Y=1:N=0 Monthly VISUAL <br /> <br /> of law dut this d«umrnr and all a"achnwmrs were Pnpued M. my dircctiat or <br />l <br />l A <br />1 , TELEPHONE UA 1 t <br />PRINCIPAL EXECUTIVE OFFICER cr pena <br />ty <br />I cettify um <br />uPe inn in. aanu w;m a,ynam designrd m aaawe Ih-quaured person== game and <br />evaluate the inforrmrion submim•1. aued on my inquiry of the perwn or pmonge <br />bmined is <br />ri <br />mf • <br />' <br />' G <br />G K <br />?d yq_ ??G 6 a z <br />_ 9 <br /> <br />` . <br />orma <br />on su <br />system, or dasc persons d- y -poosiblc for gathering the information, rM <br />m <br />i <br />ifi / <br />? gn <br />ca <br />m the best of mr know/eds,a and belief, true, accurate, and complae. I am nwar< rha dtere are s <br />imPrisotn"ent r r kra,wmg <br />p,-I,i,, for submfeing falm information, inemding tm pnaaibibry nrr -d <br />S NATURE OF PRINCIPAL EXECUTIVE OFFICER OR <br />ER MMID <br />( AUTHORIZED AGENT NUMB <br />TYPE OR PRINTED <br />COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) ETTLEABLE FOR ROMNTSIRON LIMITS MONITORING-SEE L SEE IIVPART EDD VIND SETTLEABLE SOE DS MT APPLIED S HIGHEST <br /> MONTHLY AVG I DURING N PERIOD REPRTDLIDS LIMIT MAY BE WAIVED FOR >10YR,24HR EVENT-SEE IA.1,PP 4-5, AND I.A.2, P. 5 <br />Page I <br />EPA Form 3320A (Rev.01106) Previous editions may be used.