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NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) Form Approved <br /> DISCHARGE MONITORING REPORT (DMR) OMB No. 2040-0004 <br />PERM ITTEE NAME/ADDRESS (Include Facility Name/Location if Different) <br />NAME: Oxbow Mining LLC <br /> <br />ADDRESS: PO Box 535 000000132 <br />010-A <br />[D DMR Mailing ZIP CODE: 81424-0535 <br />Somerset, CO 81424-05 35 PERMIT NUMBER <br />ISCHARGE NUMBER MINOR <br />FACILITY: SANBORN CRK & ELK CRK MINES GUNIS <br />LOCATION: 3737 HIGHWAY 133 MONITORING PERIOD SEDIMENT PO ND TO SANBORN CREEK <br />SOMERSET, CO 81434 MM/DD/YYYY MM/DD/YYYY External Outfall <br />ATTN: James T. Cooper, EVP FROM 06/01/2010 TO 06/30/2010 No Discharge rVII <br />PARAMETER QUANTITY OR LOADING QUALITY OR CONCENTRATION NO. FREQUENCY SAMPLE <br /> EX OF ANALYSIS TYPE <br /> VALUE VALUE UNITS VALUE VALUE VALUE UNITS <br />pH SAMPLE <br /> MEASUREMENT <br />00400 1 0 <br />Effluent Gross PERMIT ...... <br />,..... <br />...,.. <br />N <br />M 9 SU <br /> REQUIREMENT MI <br />I <br />UM MAXIMUM Monthly INSITU <br />Solids, total suspended SAMPLE <br /> MEASUREMENT <br />0053010 PERMIT .., .....' <br />•"•_ •••••• <br />Effluent Gross REQUIREMENT 30DA 35 <br />AVG 70 <br />DAILY MX <br />mg/L <br />Monthly GRAB <br />Solids, settleable SAMPLE <br /> <br />MEASUREMENT ....,, <br />00545 1 0 PERMIT ••••- <br />'",." "' •' •••••• " <br /> <br />Effluent Gross <br />REQUIREMENT R. Mon. <br />D Re?. <br />Mon <br />I <br />mL2 <br /> <br />Iron <br />total (as Fe) 0 <br />A AVG DA <br />LY MX Monthly GRAB <br />, SAMPLE <br /> MEASUREMENT <br />0104510 PERMIT `.,,., •••••• <br />f••*•• <br />Effluent Gross REQUIREMENT 30DA AVG DAILY MX ug/L Monthly GRAB <br />Oil and grease SAMPLE <br /> MEASUREMENT <br />0358210 PERMIT •""' ""•' •••••• •..••• ....., <br />Effluent Gross <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 />Effluent Gross PERMIT Req. Mon. Req. Mon, Mgal/d ....., •••_•• ...... <br />••.••• <br /> REQUIREMENT 30DA AVG DAILY MX <br /> <br />Solids, total dissolved <br />SAMPLE Monthly INSTAN <br /> MEASUREMENT <br />7029510 PERMIT •'•'•• <br />?••f•• .»,,, <br />Effluent Gross REQUIREMENT Mon. <br />D ? <br />YI mg/L <br /> 0 <br />A A <br />VG D <br />L <br />MX Quarterly GRAB <br />N ME/TITLE PRINCIPAL tECUTIVE OFFICER ni j' under p-A, of law that thi> do vmevr and all artac un nts were prepared uF tion or <br />?upervuiun in accerJanco wnh a sptnn desib cd m assure that quahfiW pcnunncl pand TELEPHONE DATE <br />'IF .•valuui.•. the ini?mtati,m submit mod. Ba.eJ vv my inyurry of the perwn or persons whied is, best gc and Mlicf. w<, eccumte, ad complnc. I am that ?fican? hm g false d.d..g the <br /> p,seibilny nff- and u,wing <br />TYPED OR PRINTED SIGNA E OF PRINCIPAL EXECUTI OFFICER OR <br />AUTHORIZED AGENT AREA Cod. NUMBER MWDD/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 I.A.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 Form 3320.1 (Rev.01/06) Previous editions may be used. <br />Page 1