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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 />PARAMETER QUANTITY <br /> VALUE VALUE UNITS VALUE <br />pH SAMPLE <br /> MEASUREMENT <br />0040010 <br /> <br />Effluent Gross PERMIT fe•f•• <br />•*• •• <br /> REQUIREMENT MINIMUM <br />Solids, total suspended SAMPLE <br /> MEASUREMENT <br />0053010 <br /> <br />Effluent Gross PERMIT ,,,«, ••~~ •~•-• ••«,• <br /> REQUIREMENT <br />Solids, settleable SAMPLE <br />• <br /> MEASUREMENT ""•` "°" ~` •` <br />0054510 <br /> <br />Effluent Gross PERMIT "•"' '•"'• <br />•"'-• <br />•«.« <br /> REQUIREMENT <br />Iron, total (as Fe) SAMPLE <br /> MEASUREMENT <br />0104510 <br /> <br />Effluent Gross PERMIT """ •~'~ ••••-• .•,.•. <br /> REQUIREMENT <br />Oil and grease SAMPLE <br /> MEASUREMENT <br />0358210 <br /> <br />Effluent Gross PERMIT """ `•~•• <br />•«?•• <br />•?•?•? <br /> REQUIREMENT <br />Flow, in conduit or thru treatment plant SAMPLE <br /> MEASUREMENT <br />5005010 <br /> <br /> <br />E <br />Effluent Gr PERMIT Re Mon. Re <br />q. Mon. <br />Maal/d <br /> <br />••••-• <br />os <br />""""""""°° REQUIREMENT JULIA AVG DAILY MX '" <br />Oil and grease visual SAMPLE <br />«'?•? <br /> MEASUREMENT •"•'• <br />84066 1 0 <br />Effluent Gross PERMIT Req. Mon. Y=1;N=0 <br />•~?•• <br /> REQUIREMENT INST MAX <br />9 <br />MAXIMUM <br />Monthly INSITU <br />30DA AVG I DAILY MX I I I Monthly i GRAB <br />Form Approved <br />OMB No. 2040-0004 4 <br />DMR Mailing ZIP CODE: 81424-0535 <br />MINOR <br />Mon. Req. Mon. mUL <br />AVG DAILY MX Monthly GRAB <br />duuu <br />30DA AVG DAILY MX ug/L Monthly GRAB <br />----- 10 mg/L <br />INST MAX Contingent GRAB <br />I I Monthly I INSTAN <br />Monthly ( VISUAL <br />Ptk MEffITLE PRl PAL EXECUTIVE OFFICER f 1C?'? ?`r Ko,ftY of law thai this do um .d all amchmrnrs we a prcpa¢d mxia my d rcctiw or <br />supmuwn in -d.. with a syamm deigned m swum dot qualified personnel ?tnperty gather ma • TELEPHONE DATE <br />evaluate the infomwion s.bmi.W Based ou my inquiry of the petsou or Pe_ w manage the ` , <br />system, w these prsovs dircnly rcspoosible far gathmng the informadoq the infommation submitted is. <br />qr•, • ' m the but of my knowledge end belief, rose, &t -mPlae. I em awerc 1W there ere significant 9iV 9z ??/ 6 ?_D <br />CC ?? I' p ?„ sfor mbmming false information, including ssibility of f e and imp,soruncnt Grc Yn,, jog 7 T - /Q <br />TYPED R RINTED SIGNA E OF PRINCIPAL EXECUTI OFFICER OR <br />AUTHORIZED AGENT AREA Ced. NUMBER Mw001YYYY <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,24 HR PRECIP EVENT;SETTLEABLE SOLIDS LIMITS MAY BE WAIVED FOR >10YR,24HR EVENT-SEE I.A.1, PP 4-5, <br /> AND I.A.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 RPTD. <br />EPA Form 3320-1 (Rev.01/06) Previous editions may be used. <br />Page 1 <br />000000132 016-A <br />PERMIT NUMBER DISCHARGE NUMBER <br />VALUE VALUE UNITS <br />GUNIS <br />MONITORING PERIOD SURFACE RUNOFF TO ELK CREEK <br />MM/DD/YYYY MM/DD/YYYY External Outfall <br />FROM 04/01/2010 TO 04/30/2010 No Discharge <br />OR LOADING QUALITY OR CONCENTRATION I NO. FREQUENCY AMPLE <br />E( OF ANALY S <br />SIS TYPE