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NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) Form Approved <br />DISCHARGE MONITORING REPORT (DMR) OMB No. 2040-0004 <br />PECMITTEE NAME/ADDRESS (Include Facility Name/Location if Different) <br />NAME: Oxbovj 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 />000000132 .017-A <br />PERMIT NUMBER DISCHARGE NUMBER <br />MONITORING PERIOD <br />MM/DD/YYYY MM/DD/YYYY <br />FROM 04/01/2011 TO 04/30/2011 <br />DMR Mailing ZIP CODE: 81424-0535 <br />MINOR <br />GUNIS <br />SURF RUNOFF TO N. FK GUNIS RIV <br />External Outfall <br />No Discharge <br />ATTN: James T. Cooper, EVP <br />PARAMETER QUANTITY OR LOADING QUALITY OR CONCENTRATION EX FREQUENCY <br />OF ANALYSIS STYPPEE <br /> VALUE VALUE UNITS VALUE VALUE VALUE UNITS <br />pH SAMPLE „..., <br /> MEASUREMENT <br />0040010 PERMIT „,,,, 6.5 9 SU <br /> <br />Effluent Gross <br />REQUIREMENT <br />MINIMUM <br />MAXIMUM Monthly <br />Y INSITU <br />Solids, total suspended SAMPLE <br /> MEASUREMENT <br />0053010 PERMIT 35 70 mg/L <br />Effluent Gross REQUIREMENT 30DA AVG DA!LY MX Monthly GRAB <br />Solids, settleable SAMPLE <br /> MEASUREMENT <br />0054510 PERMIT „? »?• ** „.«, Mon. Req. <br />Mon. mL/L <br />Effluent Gross <br />REQUIREMENT 30D A <br />VG RAIL Monthly GRAB <br />Iron, total (as Fe) SAMPLE <br /> MEASUREMENT <br />0104510 PERMIT ",,,, """ ""•' 3000 6000 ug/L <br />Effluent Gross REQUIREMENT 30DA AVG DAILY MX Monthly GRAB <br />Oil and grease SAMPLE <br /> MEASUREMENT <br />0358210 PERMIT ",,,, ,,..,, """ 10 mg/L <br />Effluent Gross REQUIREMENT INST MAX Contingent GRAB <br />Flow, in conduit or thru treatment plant SAMPLE <br /> MEASUREMENT <br />50050 1 0 PERMIT Req. Mon. Req. Mon. MgaUd """ """' '•"" """ <br />Effluent Gross REQUIREMENT 30DAAVG DAILY MX Monthly INSTAN <br />Oil and grease visual SAMPLE .,„.. <br />?????? <br />??? <br />„ <br /> MEASUREMENT <br />840661 0 PERMIT Req. Mon. Y=1;N=0 ""•• "••" "»" •'••" <br />Effluent Gross REQUIREMENT INST MAX Monthly VISUAL <br /> <br />NAMEIT{TLEPRINCIPAL EXECUTIVE OFFICER under peoslry of law Bus this doamem and all anachmrnn were ptepasM uMa my Bisection or <br />1 -ify pe -d with ary?md-gneamas:u fttgveurmp- jj <br />? Mlypth-a <br />-? <br />TELEPHONE <br />DATE <br /> . <br />evalumc the inf,-, submined. Ba ed nn my inquiryof the ptr nor persons manage the <br />S <br />totheli 'M b m those persons dvcaly mpuwibie fm gathmng the intortoatio0. the mtormaaon submitscd is, <br />st of my fnowkdge and belief, true, arsutve, eM wmpln<. 1 am aware thw these arc sisnifissm <br /> <br />.?,[.. sue/ <br />- ¦ <br /> <br />) Q <br />?7, Q ?G. 1 r 5, ? ? <br /> <br /> <br />?/? 5/' <br />exec. KS p win fa submm ns false int na as nclud ns the possibitiryuf f am imp w m em r r m nw ns SIGNA E OF PRINCIPAL EXECUT OFFICER OR <br />TYPED O PRINTED AUTHORIZED AGENT AREAeode NUMBER MWDo/YYYY <br />GUMMtn 15 ANU CAMANAI IUN UP* ANY VIULA FIUN5 (Reference all attachMent5 here) <br />TSS & TOTAL IRON LIMITS WILL BE WAIVED, AND SETTLEABLE SOLIDS LMT APPLIES FOR <=10YR,24HR PRECIP EVENT;SETTLEABLE SOLIDS LIMIT MAY BE WAIVED FOR >10YR,24HR EVERT-SEE IA.1,PP 4-5, AND <br /> IA.2., P 5 <br />FOR ROMNTS. 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.01106) Previous editions may be used. Page 1