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NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) <br />F <br /> <br />DISCHARGE MONITORING REPORT (DMR) orm Approved <br />OMB N <br /> <br />PERMITTEE NAME/ADDRESS (Include Facility Name/Location if Different) o. 2040-0004 <br />NAME: Oxbow Mining LLC <br />ADDRESS: PO Box 535 000000132 017-A DMR Mailing ZIP CODE: 81424-0535 <br />Somerset, CO 81424-0 535 PERMIT NUMBER DISCHARGE NUMBER <br /> <br />FACILITY: SANBORN CRK & ELK <br />CRK MINES MINOR <br /> <br />LOCATION: 3737 HIGHWAY 133 <br />MONITORING PERIOD GUNIS <br /> <br />SOMERSET, CO 81434 <br />MM/DUI YYYY SURF RUNOF F TO N. FK GUNIS RIV <br /> MM/DD/YYYY External Outfall <br />ATTN: James T. Cooper, EVP FROM 07/01/2010 TO 07/31/2010 No Discharge <br />PARAMETER QUANTITY OR LOADING QUALITY OR CONCENTRATION NO. FREQUENCY SAMPLE <br /> <br />VALUE VALUE UNITS VALUE VALUE E( OF ANALYSIS TYPE <br />pH <br />SAMPLE <br /> <br />• VALUE UNITS <br /> MEASUREMENT ?•" ""» "" ' »•». <br />0040010 <br /> <br />Effluent Gross PERMIT <br />REQUIREMENT ""'• <br />• •»»* 6.5 •'•»` <br />9 <br />SU <br /> <br />Solids, total suspended <br />SAMPLE MINIMUM <br /> <br />• MAXIMUM Monthly INSITU <br /> MEASUREMENT ?»" """ "" •••••• <br />0053010 <br /> <br />Effluent Gross PERMIT •""' •••••• •»»• ...•,_ <br />35 <br /> <br /> <br />Solids, settleable REQUIREMENT <br />30DA AVG 70 <br />DAILY MX mg/L <br />Monthly GRAB <br /> SAMPLE <br />• <br /> MEASUREMENT `» """ """ <br />••• " <br />00545 1 0 <br />Effluent Gross PERMIT <br />REQUIREMENT "'•" <br />•.,»• •?•»• •.'•.• Req. Mon. Req. Mon. mUL <br /> <br />Iron, total (as Fe) <br />SAMPLE 30DA AVG DAILY MX Monthly GRAB <br /> MEASUREMENT <br />0104510 <br /> <br />Effluent Gross PERMIT <br />REQUIREMENT •••••• •••»• <br />""" 3000 <br />6000 <br />ug/L <br /> <br />Oil and grease <br />SAMPLE 30DA AVG DAILY MX Monthly GRAB <br /> MEASUREMENT .»_•• •»». <br />0358210 <br /> <br />Effluent Gross PERMIT "`"• •••••• •»•._ <br />•»» ""•• <br /> REQUIREMENT 10 mg/L <br />Flow, in conduit or thru treatment plant SAMPLE INST MAX Contingent GRAB <br /> MEASUREMENT ••-»• »•». <br />• •" <br />5005010 <br />Effluent t Gross <br />PERMIT <br />Req. Mon. Re Mon. Mga ..•Ud <br />» •»•» <br />• <br />•»` <br /> REQUIREMENT 30DAAVG DAL Y MX """ """ <br />Oil and grease visual <br />SAMPLE Monthly INSTAN <br /> MEASUREMENT ?????? <br />84066 10 <br />Effluent Gross PERMIT Req. Mon. 7=1,N=0 <br />•• <br />•»••• »'•" <br /> REQUIREMENT INST MAX "•"' "°•• <br /> =thlyVISUAIL <br />r e.mcrtstr_er -rrgt_ -XECUTIV EOFFICER r""ryef'alryvflnwthat this Jocumentand allartxM,entsunre prcpaseJ UnJa?mya;,m;a <br />snpcrvta,nn in a?r<,roan« whh a>y:tam aeaignea m anm m>u ynabrea persanriel rnper <br />ly ga,her a>" d m TELEPHONE <br />cvaluaie Jte informatiov submitlcd. Base) ov my ivywry of the peswv ur persons w u vumgc the G, K C DATE <br />so the best ut m kn wI J y y?l ible for gathering tM ivfumutio0. the infomurion submimd is 4 c4 <br />ee. ?. ,? ef, b s a e true, auurate, p bi, Icte. 1 mn awa a ha he a art significant q?o -2 -S'YOb <br />'inlenonsC r wbmnting false informatiuv, including the ossibiliry of f and imprlsovmemfor ktmw ing (? y / f •L? l? <br />TYPED OR PRINTED OR D <br />NATURE OF PRINCIPAL EXECUTIVE OFFICER <br />COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) AUTHORIZED AGENT • coa. NUMBER M pryyyY <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 /> 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 RPTD <br />EPA Form 3320-1 (Rev.01/06) Previous editions may be used. <br />Page 1