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NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)
<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 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 014-A
<br />PERMIT NUMBER DISCHARGE NUMBER
<br />MONITORING PERIOD
<br />MM/DD/YYYY MM/DD/YYYY
<br />FROM 06/01/2010 TO 06/30/2010
<br />Form Approved
<br />OMB No. 2040-0OD4
<br />DMR Mailing ZIP CODE: 81424-0535
<br />MINOR
<br />GUNIS
<br />SURF RUNOFF TO N FK GUNNISON R
<br />External Outfall
<br />No Discharge
<br />
<br />PARAMETER QUANTITY OR LOADING QUALITY OR CONCENTRATION NO.
<br />EX FREQUENCY
<br />OF ANALYSIS SAMPLE
<br />TYPE
<br /> VALUE VALUE UNITS VALUE VALUE VALUE UNITS
<br />pH SAMPLE
<br /> MEASUREMENT
<br />
<br />0040010
<br />Effluent Gross PERMIT
<br />REQUIREMENT '„,,, "'"' 6.5
<br />MINIMUM •„'•' 9
<br />MAXIMUM SU
<br />Monthly
<br />INSITU
<br />Solids, total suspended SAMPLE „,,,,
<br />""
<br />
<br />MEASUREMENT " ""
<br />
<br />0053010
<br />Effluent Gross PERMIT
<br />REQUIREMENT """ ',"" „"" ,""' 35
<br />30DA AVG 70
<br />DAILY MX mg/L
<br />Monthly
<br />GRAB
<br />Solids, settleable SAMPLE ,,,,,
<br />
<br />MEASUREMENT , »,,,,
<br />
<br />005451 0
<br />Effluent Gross PERMIT
<br />REQUIREMENT „,,,, """ `•"" ,,,,,, Req. Mon.
<br />30DA AVG Req. Mon.
<br />DAILY MX mUL
<br />Monthly
<br />GRAB
<br />Iron, total (as Fe) SAMPLE ...... „„„
<br />
<br />MEASUREMENT ,,,,,,
<br />
<br />0104510
<br />Effluent Gross PERMIT
<br />REQUIREMENT „,,,, "`,,, „,,,, „"" 3000
<br />30DA AVG 6000
<br />DAILY MX ug/L
<br />Monthly
<br />GRAB
<br />Oil and grease SAMPLE ,,,,,,
<br />
<br />MEASUREMENT ,,•, ,,..
<br />
<br />0358210
<br />Effluent Gross PERMIT
<br />REQUIREMENT „"" """ ",,,, •""' ,,,,,•
<br />INST MAX
<br />mg/L
<br />Contingent
<br />GRAB
<br />Flow, in conduit or thru treatment plant SAMPLE
<br /> MEASUREMENT
<br />
<br />500501 0
<br />Effluent Gross PERMIT
<br />REQUIREMENT Req. Mon.
<br />30DA AVG Req. Mon.
<br />DAILY MX MgaVd •,"" „••'• •••»• -•••
<br />••
<br />Monthly
<br />INSTAN
<br />Solids, total dissolved SAMPLE ,,,,,, ,,,,,,
<br /> MEASUREMENT """
<br />
<br />702951 0
<br />Effluent Gross PERMIT
<br />REQUIREMENT ",,,, •" Req. Mon.
<br />QRTR AVG Req. Mon.
<br />DAILY MX mg/L
<br />Quarterly
<br />GRAB
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<br />TSS 8 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
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<br />FOR RQMNTS.TDS MONITORING-SEE PART VI.A.2.G OF RATIONALE. 30 DAY AVG. IS HIGHEST MONTHLY AVG. DURING PERIOD REPRTD.
<br />l-A roan sszo-1 (Kev.uuue) 1•reWOU5 editions may be used. Page 1
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