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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 08/01/2010 TO 08/31/2010
<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 Outfall
<br />No Discharge
<br /> QUANTITY OR LOADING QUALITY OR CONCENTRATION NO.
<br />EX FREQUENCY
<br />OF ANALYSIS SAMPLE
<br />TYPE
<br />PARAMETER
<br /> VALUE VALUE UNITS VALUE VALUE VALUE UNITS
<br />pH SAMPLE .»,»
<br /> MEASUREMENT
<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 /> MEASUREMENT
<br />0053010
<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 />00545 1 0 PERMIT „,,,, ",,,, Req. Mon.
<br />30DA AVG Req. Mon.
<br />D
<br />ILY
<br />X mUL
<br />Monthly
<br />GRAB
<br />Effluent Gross REQUIREMENT A
<br />M
<br />Iron, total (as Fe) SAMPLE .... .. »..., ». .,....
<br /> MEASUREMENT
<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 />0358210
<br />Effluent Gross PERMIT
<br />REQUIREMENT „,,,` 10
<br />INST MAX mg/L
<br />Contingent
<br />GRAB
<br />Flow, in conduit or thru treatment plant SAMPLE
<br />*?»
<br />f????
<br />?????
<br />»»
<br /> MEASUREMENT
<br />500501 0
<br />Effluent Gross PERMIT
<br />REQUIREMENT Req. Mon.
<br />30DA AVG Req. Mon.
<br />DAILY MX MgaVd Month
<br />N INSTAN
<br />Oil and grease visual SAMPLE ......
<br /> MEASUREMENT
<br />840661 0 PERMIT Req. Mon. Y=1;N=0 """ ""•• "'"" """
<br />Effluent Gross REQUIREMENT INST MAX Monthly vISUAL
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<br />a SIGNAT E OF P N IPAL EX V FFI ER OR
<br />TYPED PRINTED AUTHORIZED AGENT AREA C d. NUMBER MMIDONYYY
<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 IA.1,PP 4-5, AND
<br /> I.A.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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