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NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) Forth Approved p <br />DISCHARGE MONITORING REPORT (DMR) OMB No. 2040-0004 <br />PERMITTEENAME/ADDRESS (/nctudeFadlityNamaloca&onhDhYeient) <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 007A <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 />DMR Mailing ZIP CODE: 81424-0535 <br />MINOR <br />GUNIS <br />SEDIMENT POND TO HUBBARD CREEK <br />External Outfall <br />No Discharge <br /> QUANTITY OR LOADING QUALITY OR CONCENTRATION E <br />NO. <br />X <br />? <br /> <br />FREQUENCY <br />OF ANALYSIS <br /> <br />SAMPLE <br />TYPE <br />PARAMETER <br /> VALUE VALUE UNITS VALUE VALUE VALUE UNITS <br /> SAMPLE <br />pH MEASUREMENT <br />004001 0 PERMI T « MINIMUM =** MAXIMUM SU Month <br />ly INSITU <br />Effluent Gross REQUIREMENT <br />Solids, total suspended SAMPLE <br />MEASUREMENT .»•« «.». .,.«. »•... <br />005301 0 PERMIT """ _•«» ««, _""' 30DA 35 <br />AVG 70 <br />DAILY MX L Monthly GRAB <br />Effluent Gross REQUIREMENT <br />Solids <br />settleable SAMPLE ««« »«» ,».» «•«• <br />, MEASUREMENT <br />005451 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 3500 <br />30DA AVG 7000 <br />DAILY MX ug/L <br />Monthly <br />GRAB <br />Effluent Gross REQUIREMENT <br />Oil and grease SAMPLE ,.«« »»,. •««. ....» ««« <br /> MEASUREMENT <br />0358210 PERMIT 10 <br />INST MAX m91L <br />Contingent <br />GRAB <br />Effluent Gross REQUIREMENT <br />Flow, in conduit or thru treatment plant SAMPLE <br />MEASUREMENT ._•,« ••,,.• *-_•» •«•» <br />500501 0 PERMIT Req. Mon. Req. Mon. MgaUd `_"'• """ """` """ <br />Monthly <br />INSTAN <br />Effluent Gross REQUIREMENT 30DA AVG DAILY MX <br />Oil and grease visual SAMPLE <br />MEASUREMENT ».,» »..» -»«. •»•» -»--- <br />840661 0 PERMIT Req. Mon. <br />INST MAX Y=1:N=0 <br />Monthly <br />VISUAL <br />Effluent Gross REQUIREMENT <br /> <br />NAME/TITLE PRINCIPAL EXECUTIVE OFFICER I ce,tify under P-li of law that this documant and all anach-w PreparM under my du-nonw <br />superv"vion in-,da„ee wilb a rys,em designd m ec drat ynareed performs P,.py pd-and /t TELEPHONE DATE <br /> e zlua,e the mf emaion sobmi 4 Bssed an my vgoiry of,he K-. - Perema who -ge ,hc <br />W-r g system, or lose pe,sone di-dy rnponsible for gadwing the if-tion,,he information anbmined is <br />and cmnpl- I a,n aware that hoe ere sign ficsnt <br />to d. bat of my k-ledge end behcf <br />hue <br />- 9?0 Q 29 - S/ 2 Z b S - 0 3 - a 9 <br />e? ' ?t m5t , <br />, <br />1 <br />p=lus far submining fslw info-aim induding the possibility off a,d imprisonment for Inxming <br />Oowim. <br />SIGNA RE OF PRINCIPAL EXECUTIVE OFFICER OR <br /> <br />TYPED OR PRINTED <br />AUTHORIZED AGENT ?aFn cna. NUMBER MM/DD/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 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 1