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NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) <br />DISCHARGE MONITORING REPORT (DMR) <br />PERMITTEENAMEIADDRESS (/nc/udeFaci/ityName/Loca&onifDi/feent) <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 />000000132 013A <br />PERMIT NUMBER DISCHARGE NUMBER <br />MONITORING PERIOD <br />MM/DD/YYYY MM/DD/YYYY <br />FROM 07/01/2009 TO 07/31/2009 <br />Form Approved <br />OMB No. 2040-0004 <br />DMR Mailing ZIP CODE: 81424-0535 <br />MINOR <br />GUNIS <br />RUNOFF TO N FORK GUNNISON R. <br />External Outfall <br />No Discharge <br /> <br />QUANTITY OR LOADING <br />QUALITY OR CONCENTRATION <br />EX <br />NO. <br />?( <br />FREQUENCY <br />OF ANALYSIS <br />SAMPLE <br />n(pE <br />PARAMETER <br /> VALUE VALUE UNITS VALUE VALUE VALUE UNITS <br />pH SAMPLE <br /> MEASUREMENT <br />0040010 PERMIT 6.5 <br />MINIMUM 9 <br />MAXIMUM SU <br />Monthly <br />INSITU <br />Effluent Gross REQUIREMENT <br />total suspended <br />Solids SAMPLE <br />, MEASUREMENT <br />0053010 PERMIT 35 <br />30DA AVG 70 <br />DAILY MX mg/L <br />Monthly <br />GRAB <br />Effluent Gross REQUIREMENT <br />Solids <br />settleable SAMPLE »»» »»., _»». »,... <br />, MEASUREMENT <br />00545 1 0 PERMIT Req. Mon. <br />30DA AVG Req. Mon, <br />DAILY MX mL/L <br />Monthly <br />GRAB <br />Effluent Gross REQUIREMENT <br />Iron, total (as Fe) SAMPLE <br />MEASUREMENT ...... »».. ».». ».». <br />0104510 PERMIT <br />»,»• <br />.»... <br />30DA AVG <br />DAIL6000 Y MX <br />D <br />Monthly <br />GRAB <br />Effluent Gross REQUIREMENT <br />Oil and grease SAMPLE ,._». ,.,.,, .,..» _•»., ..»» <br /> MEASUREMENT <br />03582 1 0 PERMIT <br />•,»» <br />», <br />•••,» <br />_»•,• <br />»__» <br />INST 10 MAX <br />mg/L <br />Contingent <br />GRAB <br />Effluent Gross REQUIREMENT <br />Flow, in conduit or thru treatment plant SAMPLE <br />MEASUREMENT •»--- <br />50050 1 0 PERMIT Req. Mon. <br />30DAAVG Req. Mon. <br />DAILY MX Mgal/d <br />= """ <br />Monthly <br />INSTAN <br />Effluent Gross REQUIREMENT <br />Oil and grease visual SAMPLE <br />MEASUREMENT <br />84066 1 0 PERMIT Req. Mon. <br />INST MAX Y=1:N=0 Monthly VISUAL <br />Effluent Gross REQUIREMENT <br /> <br />AME/TITLEPRINCIPAL EXECUTIVE OFFICER rem;F-=de<pee,i,yof wwthat w:deeomenr1WIII mehmeort were P,ePIream,dermyd,x ionor <br />r„Per,. i-in.e ,d-with,:.uemde.ignedm-tl.q-llrKdPezomeipmperiygaa- W TELEPHONE DATE <br /> -1-te the infomwdon mIr tn.& Based on my roquily of the Person or persons who nonage the <br />t <br />- system. or thou Persons dvemly ecsponobic for gathering the information, she information subndncd is. <br />to the hest of my knowledge and bcher. true. accurate <br />and cornplete. I on awnve dot drerc are significant <br />''r t Q ^?'? <br />70 / 2[? J -$ t (-G+ q <br />D8 <br />? <br />cif , <br />pereluea for wbmit ing fdse ivfora,stiuq neluding he possibdi y of f and imprisonmcm for knowing <br />s;olanom. <br />SIGNA E OF PRINCIPAL EXECUTIVE OFFICER OR <br /> <br />TYPED OR PRINTED <br />AUTHORIZED AGENT AREA Cod. NUMBER 11WDD1YYYY <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 /> I.A.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 REPRTD. <br />EPA Form 3320.1 (Rev.01106) Previous editions may be used. Page t