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.t <br />NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) <br />DISCHARGE MONITORING REPORT (DMR) <br />Form Approved <br />OMB No. 2040-0004 <br />PERMITTEE NAME/ADDRESS (Include Facility Name/Location if DlYerent) <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 :1 1 019-A <br />PERMIT NUMBER DISCHARGE NUMBER <br />MONITORING PERIOD <br />MM/DD/YYYY MM/DD/YYYY <br />FROM 03/0112011 TO 03/31/2011 <br />DMR Mailing ZIP CODE: 81424-0535 <br />MINOR <br />GUNIS <br />SURFACE RUNOFF TO HUBBARD CRK <br />External Outfall <br />No Discharge <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 /> <br />0040010 PERMIT 6.5 9 SU <br />Effluent Gross REQUIREMENT MINIMUM MAXIMUM Monthly INSITU <br />Solids, total suspended SAMPLE <br />»•• <br />•»' <br /> MEASUREMENT »"» <br /> <br />00530 1 0 <br />Effluent Gross PERMIT 35 70 mg/L <br /> REQUIREMENT 30DA AVG MX 7D AV Monthly GRAB <br />Solids, settleable SAMPLE <br /> MEASUREMENT • ??" <br /> <br />00545 1 0 <br />Effluent Gross PERMIT """ Req. Mon. Req. Mon. mUL <br /> REQUIREMENT 30DA AVG DAILY MX Monthly GRAB <br />Iron, total (as Fe) SAMPLE <br /> MEASUREMENT ... I <br /> <br />0104510 <br />Effluent Gross PERMIT 3000 6000 ug/L <br /> REQUIREMENT 30DA AVG DAILY MX Monthly GRAB <br />Oil and grease SAMPLE <br /> MEASUREMENT <br /> <br />0358210 <br />E <br />ffluent Gross PERMIT „"" „"" •`•"' '«"• •••,•. <br />10 <br />L <br /> REQUIREMENT INST MAX Contingent GRAB <br />Flow, in conduit or thru treatment plant SAMPLE <br /> MEASUREMENT <br /> <br />50050 1 0 PERMIT Req. Mon. Req. Mon. Mgal/d «•«• «,... ,..,.• •„••• <br />Effluent Gross REQUIREMENT 30DA AVG DAILY MX Monthly INSTAN <br />Solids, total dissolved SAMPLE <br />»" <br /> MEASUREMENT <br /> <br />70295 1 0 <br />Effluent Gross PERMIT "«" """ """ '«"• Req. Mon. Req. Mon. mg/L <br /> REQUIREMENT 30DA AVG DAILY MX Quarterly GRAB <br />AME/TITLEP CIP LEXECUTIVE OFFICER lrcry a"`p`°'Iry°ltaww„misd°r°m"m,namanchm"nn..-pq..d-dr.yd, ,;m,nr <br /> zupm.si°n in arc°.L.. with a.yatcm designed m u:we thu qualified personnel properly ga,ner.na <br />walua,e the mf ioo suhmitvJ. I:as d tin mY i°quiry uf,he <br />ersu° ur <br />erso <br />s wh TELEPHONE DATE <br /> <br /> <br /> <br /> <br />e` p <br />p <br />n <br />manse <br />rya'tcm. ur thox peraovs di,ly rc:p.msible fm gathamg the intomution submi,ted a <br />m the Fes, almy krmwledge end behrf, mx. aumate, aM complete. 1 a'%t' <br />thu dwe arc significant <br />W <br />! <br />b <br />• <br />I PP 9Z 9 " 7 z Z ,/ <br />o 'j' ?? r <br />7 s <br />a per <br />nea <br />or w <br />mming false int rmetioo, including the puscibiliry of f and imprisu,tmem t krwwivg <br />"o4no ° <br />SIGNA E OF PRINCIPAL <br /> <br />TYPED OR PRINTED EXECUT OFFICER OR <br /> <br />CAM?IIC WTC won Cvlft w„?a Tt?u Per AUTHORIZED AGENT AREA Cwd. NUMBER MMIDO/YYYY <br />TSS 8 TOTAL IRON LIMITS WILL BE WAIVED, AND SETTLEABLE SOLIDS LMT APPLIED FOR -10,24HR PRECIP EVENT;SETTLEABLE SOLIDS LIMIT MAY BE WAIVED FOR >10YR.24HR EVENT-SEE IA1,PP 4.5, AND IA2, <br /> P 5 FOR <br />RQMNTS.TDS MONITORING-SEE PART VI.A.2.G OF RATIONALE. 30 DAY AVG IS HIGHEST MONTHLY AVG DURING REPORTING PERIOD. <br />U-1 tnev.eUOol Previous editions may be used. - - Page 1