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NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPOES)
<br />DISCHARGE MONITORING REPORT (DMR)
<br />PERM. ITTEE NAME/ADDRESS (Include Facility Name/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 />000000132 013-A
<br />PERMIT NUMBER FODISCHARGE NUMBER
<br />MONITORING PERIOD
<br />MM/DD/YYYY MM/DD/YYYY
<br />FROM 04/01/2011 TO 04/30/2011
<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 />
<br />
<br />ARAMETER QUANTITY OR LOADING QUALITY OR CONCENTRATION E
<br />
<br />X
<br />NO.
<br />?(
<br />
<br />FREQUENCY
<br />OF ANALYSIS
<br />
<br />SAMPLE
<br />TYPE
<br /> VALUE VALUE UNITS VALUE VALUE VALUE UNITS
<br />pH SAMPLE „„.. ,,, .. „..,. „..»
<br /> MEASUREMENT
<br />0040010 PERMIT "«" "'•'• •"'» 6.5 •••"' 9 SU
<br />Effluent Gross REQUIREMENT MINIMUM MAXIMUM Monthly INSITU
<br />Solids, total suspended SAMPLE
<br /> MEASUREMENT
<br />0053010 PERMIT ,,,••• «`•« `»"' 35 70 mg/L
<br />Effluent Gross REQUIREMENT 30DA AVG DAILY MX Monthly GRAB
<br />Solids, settleable SAMPLE
<br /> MEASUREMENT
<br />005451 0 PERMIT "•'« "'«' """ "»» Req. Mon. Req. Mon, mUL
<br />Effluent Gross REQUIREMENT 30DA AVG DAILY MX Monthly GRAB
<br />Iron, total (as Fe) SAMPLE
<br /> MEASUREMENT
<br />0104510 PERMIT «"" "»« `••"' '•••" 3000 6000 ugfL
<br />Effluent Gross REQUIREMENT 300A 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 />?••--?
<br />•«'«
<br />,,.,«
<br />500501 0 PERMIT Req. Mon. Req. Mon. MgaVd "••" •~••• ~•~• ••••••
<br />Effluent Gross REQUIREMENT 30DA AVG DAILY MX Monthly INSTAN
<br />Oil and grease visual SAMPLE ,,,,..
<br /> MEASUREMENT
<br />84066 1 0 PERMIT ""'• Req. Mon. Y=1;N=0 '~'~ •~„• •••••• »••••
<br />Effluent Gross REQUIREMENT INST MAX Monthly VISUAL
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<br />U SIGNA E OF PRINCIPAL EXECUTI OFFICER OR
<br />TYPED R PRINTED AUTHORIZED AGENT ARC coa. NUMBER MMIDDIYYYY
<br />- ---------- - - - -. -- --- - -- .- -_-. _. a.......................w..,.,..v,..a uaa.ar
<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 /> 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. Page 1
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