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NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)
<br />DISCHARGE MONITORING REPORT (DMR)
<br />PERMITTEE NAME/ADDRESS (Include FacilityName/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 009-A
<br />PERMIT NUMBER DISCHARGE NUMBER
<br />MONITORING PERIOD
<br />MM/DD/YYYY MM/DD/YYYY
<br />FROM 03/01/2010 TO 03/31/2010
<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 GUNIS RIVR
<br />External Outfall
<br />No Discharge
<br />
<br />PARAMETER QUANTITY OR LOADING
<br />QUALITY OR CONCENTRATION NO. FREQUENCY SAMPLE
<br /> EX OF ANALYSIS TYPE
<br /> VALUE VALUE UNITS VALUE VALUE VALUE UNITS
<br />pH SAMPLE ..~.. , ..„.
<br />
<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 />
<br />0053010
<br />Effluent Gross PERMIT •.,,,, '•""' ""'• 35 70 mg/L
<br /> REQUIREMENT 30DA AVG DAILY MX Monthly GRAB
<br />Solids, settleable SAMPLE .»~, ...... ""'
<br /> MEASUREMENT
<br />
<br />00545 1 0
<br />Effluent Gross PERMIT """ """ Req. Mon. Req. Mon. mUL
<br /> REQUIREMENT 30DA AVG DAILY MX Monthly GRAB
<br />Iron, total (as Fe) SAMPLE „„„
<br />
<br />MEASUREMENT ,..,.,
<br />
<br />0104510
<br />Effluent Gross PERMIT „,,,, „"" 3500 7000 ug/L
<br /> REQUIREMENT 30DA AVG DAILY MX Monthly GRAB
<br />Oil and grease SAMPLE ,,,,,,
<br /> MEASUREMENT ,,,,,
<br />
<br />0358210 PERMIT „'„` """ """ '~•" •""' 10 mg/L
<br />Effluent Gross REQUIREMENT INST MAX Contingent GRAB
<br />Flow, in conduit or thru treatment plant SAMPLE
<br />
<br />MEASUREMENT ""'_ """
<br />
<br />500501 0 PERMIT Req. Mon. Req. Mon. Mgatld '•~~ •••,•• ~•~- •____
<br />Effluent Gross REQUIREMENT 30DA AVG DAILY MX Monthly INSTAN
<br />Solids, total dissolved SAMPLE ,,,,,,
<br />
<br />MEASUREMENT ,,,,,,
<br />
<br />70295 1 0
<br />Effluent Gross PERMIT „,,,` `~•" Req. Mon. Req. Mon. mg/L
<br /> REQUIREMENT 30DA AVG DAILY MX Quarterly GRAB
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<br />TYPED O PRINTED SIGNA E OF PRINCIPAL EXECUTIlk OFFICER OR
<br /> AUTHORIZED AGENT ?+? coa. NUMBER MMIDO/YYYY
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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 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. IF HIGHEST MONTHLY AVG. DURING PERIOD REPRTD.
<br />EPA Form 3320.1 (Rev.01106) Previous editions may be used. Page 1
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