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<br />NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) Form Approved
<br />DISCHARGE MONITORING REPORT (DMR) OMB No. 2040-0004
<br />PERMITTEE 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 012-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 />DMR Mailing ZIP CODE: 81424-0535
<br />MINOR
<br />GUNIS
<br />SEDIMENT POND TO ELK CREEK
<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
<br />
<br />Effluent Gross PERMIT 6.5 "'•" 9 SU
<br /> REQUIREMENT MINIMUM MAXIMUM Monthly INSITU
<br />Solids, total suspended SAMPLE ,,,,,. ,,,,,,
<br />
<br />MEASUREMENT ,»,• ,...,,
<br />00
<br />53010
<br />Effluent Gross PERMIT ...•.. """ "•"' •`•`•• 35 70 mg/L
<br /> REQUIREMENT 30DA AVG DAILY MX Monthly GRAB
<br />Solids, settleable SAMPLE ,.,,,,
<br /> MEASUREMENT '""
<br />
<br />005451 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 />010451 0 ......
<br />
<br />Effluent Gross PERMIT '••••• 3000 6000 ug/L
<br /> REQUIREMENT 30DA AVG DAILY MX Monthly GRAB
<br />Oil and grease SAMPLE ....,, ,
<br /> MEASUREMENT """
<br />
<br />0358210
<br />Effluent Gross PERMIT ....., "`.,, """ ""•' "•'•` 10 mg/L
<br /> REQUIREMENT INST MAX Contingent GRAB
<br />Flow, in conduit or thru treatment plant SAMPLE
<br /> MEASUREMENT
<br />
<br />500501 0 PERMIT Req. Mon. Req. Mon. Mgalld •••"• ....., ••••» ......
<br />Effluent Gross REQUIREMENT 30DA AVG DAILY MX Monthly INSTAN
<br />Solids, total dissolved SAMPLE
<br /> MEASUREMENT ""
<br />
<br />70295 1 0
<br />Effluent Gross PERMIT ...,.. .."" Req. Mon. Req. Mon. mg/L
<br /> REQUIREMENT QRTR AVG DAILY MX Quarterly GRAB
<br />NA ENTITLE PRINCIPAL EX UTIVE OFFICER Ieerufy-de,p-hyofl-h., hjsdocumenrandaij.-hmcnnwereprcpv dermydimcuon°
<br />,up-isi°n in -dancc with a sys=designed w - thu qualified persom?el pprr P-iy g.,h. and r
<br />rvaluale We inf- ion mbmiued. Based m my inq,q of the
<br />erson or
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<br />th TELEPHONE DATE
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<br />syswm. or .hose p osdirectly resgmsible fmgathamg the intbmusiuRshiwe infrionsubmincd is.
<br />w the -.,M" now) di nd belief, ib ampth asd complete. 1 am t dos them ere significant
<br />a
<br />
<br />r . S
<br />pctuhieaformbmining faise
<br />infermrtion,including i possibilityoff and imprisonmem for k-,
<br />
<br />SIGNA E OF P I
<br />
<br />TYPED OR PRINTED RINCIPAL EXECUTI OFFICER OR
<br /> AUTHORIZED AGENT AREA I:aM NUMBER MM/DD/YYYY
<br />COMMENTS AND EXPLANATION OF ANV vin. ATln rde ms........... ,u ....__a.?__? -
<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 IAA RP 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.
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