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NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)
<br />DISCHARGE MONITORING REPORT (DMR)
<br />PERMITTEE 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 014-A
<br />PERMIT NUMBER DISCHARGE NUMBER
<br />MONITORING PERIOD
<br />MMIQD/YYYY MM/DD/YYYY
<br />FROM 03/01/2011 TO 03/31/2011
<br />Form Approved
<br />OMB No. 2040-0004
<br />DMR Mailing ZIP CODE: 81424-0535
<br />MINOR
<br />GUNIS
<br />SURF RUNOFF TO N FK GUNNISON R
<br />External Outtall
<br />No Discharge
<br />PARAMETER QUANTITY OR LOADING QUALITY OR CONCENTRATION X of ANNALYSIS SAM E
<br />
<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 •~'~
<br />MAXIMUM
<br />SU
<br />Monthly
<br />INSITU
<br />Solids, total suspended SAMPLE
<br />
<br />MEASUREMENT .,,,.. „„•
<br />0053010 •,,",
<br />
<br />Effluent Gross PERMIT
<br />REQUIREMENT ••.•.• 35
<br />300A AVG 70
<br />DAILY MX mg/L
<br />Monthly
<br />GRAB
<br />Solids, settleable SAMPLE
<br /> MEASUREMENT """
<br />
<br />00545 1 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 />
<br />MEASUREMENT • ......
<br />„
<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 /> MEASUREMENT
<br />
<br />0358210
<br />Effluent Gross PERMIT
<br />REQUIREMENT „"„ „"" '»"' `»'» •»'» 10
<br />INST MAX m9tL
<br />Contingent
<br />GRAB
<br />Flow, in conduit or thru treatment plant SAMPLE
<br /> MEASUREMENT
<br />
<br />50050 1 0
<br />Effluent Gross PERMIT
<br />REQUIREMENT Req. Mon.
<br />30DA AVG Req. Mon.
<br />DAILY MX MgaUd •~~• ..•••• •„•~ ...„.
<br />Monthly
<br />INSTAN
<br />Solids, total dissolved SAMPLE ,,,,,, ,,,,,
<br />
<br />
<br />MEASUREMENT • ......
<br />.?..„
<br />
<br />70295 1 0
<br />Effluent Gross PERMIT
<br />REQUIREMENT '.,,"` Req. Mon.
<br />QRTR AVG Req. Mon.
<br />DAILY MX mgtL
<br />Quarterly
<br />GRAB
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<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 IA.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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