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4 <br />NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) Form Approved <br />DISCHARGE MONITORING REPORT (DMR) OMB No. 2040-0004 <br />PERMITTEE NAMEfADDRESS (Include Facility Narne/Location if Different) <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 />PARAMETER <br />Y" SAMPLE <br /> MEASUREMENT <br />00400 1 0 <br /> PERMIT <br />Effluent Gross REQUIREMENT <br />Solids, total suspended SAMPLE <br /> MEASUREMENT <br />0053010 <br /> PERMIT <br />Effluent Gross REQUIREMENT <br />Solids, settleable SAMPLE <br /> MEASUREMENT <br />00545 1 0 <br /> PERMIT <br />Effluent Gross REQUIREMENT <br />Iron, total (as Fe) SAMPLE <br /> MEASUREMENT <br />01045 1 0 <br /> PERMIT <br />Effluent Gross REQUIREMENT <br />Oil and grease SAMPLE <br /> MEASUREMENT <br />035821 0 <br /> PERMIT <br />Effluent Gross REQUIREMENT <br />Flow, in conduit or thru treatment plant SAMPLE <br /> MEASUREMENT <br />50050 1 0 <br /> PERMIT <br />Effluent Gross REQUIREMENT <br />Oil and grease visual SAMPLE <br /> MEASUREMENT <br />84066 1 0 <br /> PERMIT <br />Effluent Gross REQUIREMENT <br />000000132 007-A <br />PERMIT NUMBER DISCHARGE NUMBER <br />MONITORING PERIOD <br />MM/DD/YYYY MM/DD/YYYY <br />FROM 01/01/2011 TO 01/31/2011 <br />QUANTITY OR LOADING <br />VALUE VALUE <br /> <br />q. Mon. Req. Mon. <br />DA AVG DAILY MX <br />««" Req. Mon. <br />INST MAX <br />UNITS <br />QUALITY OR CON <br />VALUE VALUE <br /> <br />6.5 <br />MINIMUM ------ <br /> <br />.«... 35 <br />30DA AVG <br /> <br /> Req. Mon. <br />30DA AVG <br /> <br />3UDA AVG <br />DMR Mailing ZIP CODE: 81424-0535 <br />MINOR <br />GUNIS <br />SEDIMENT POND TO HUBBARD CREEK <br />External Outfall <br />No Discharge <br />CENTRATION NO. <br />EX FREQUENCY <br />OF ANALYSIS SAMPLE <br />TYPE <br />VALUE UNITS <br /> <br /> <br />9 <br />MAXIMUM SU <br />Monthly <br />INSITU <br /> <br /> <br />70 <br />DAILY MX <br />mg/L <br />Monthly <br />GRAB <br /> <br /> <br />Req. Mon. DAILY MX mIJL Monthly GRAB <br /> <br /> <br />7000 <br />DAILY MX ug/L <br />Monthly <br />GRAB <br /> <br /> <br />10 <br /> <br />INST MAX <br />mgll <br /> <br />Contingent <br /> <br />GRAB <br /> <br /> <br /> Monthly INSTAN <br /> <br /> <br /> <br /> Monthly VISUAL <br />AME/TITLEPRINCIPAL EXECUTIVE OFFICER "" imi "°'ryofwn,msd«nmem,millan,?nm.nnw.mpr.P„cdmdermyd aon« TELEPHONE DATE <br />supernsion in aceerdmm with a sysmn deigned m asswe that qualified Pe .:d r?upnly gather and <br />evA- the infmnndon mbminai aced mt my inquiryof the peen or pcrsone w pm.vage the ^/ <br />system, m throe persons dim-dy mpmt ble fw gathmng the infomutioq dw mfmmation mbmined m 62i CJZZ 021,03111 <br />ee. V- m d- ben of my I n-Wpa end kher. nue, accutne. and -mpl- tun ewuc dw =.-; cun 7? 7 n- ? V' <br />Cs/ r ?" "r subm ping false of ma?nn Leh d g me peviniii y t,fr e, d imp ftn.??g :S1 NA E J - - <br />OF PRINCIPAL EXECU OFFICER <br />TYPED OR PRINTED AUTHORIZED AGENT OR AREA cod. NUMBER MWOD/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 IA.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.01106) Previous editions may be used. <br />Page 1