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NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)
<br />DISCHARGE MONITORING REPORT (DMR)
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<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: Jame s T_ Cooper, EVP
<br />000000132 010A
<br />PERMIT NUMBER DISCHARGE NUMBER
<br />MONITORING PERIOD
<br />MM/DD/YYYY MM/DD/YYYY
<br />FROM 08/01/2009 TO 08/31/2009
<br />Form Approved
<br />OMB No. 2040-0004
<br />DMR Mailing ZIP CODE: 81424-0535
<br />MINOR
<br />GUNIS
<br />SEDIMENT POND TO SANBORN CREEK
<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 />0040010 PERMIT *...., .,.,„ 6.5_ ,.., 9 SU
<br />Effluent Gross REQUIREMENT MINIMUM MAXIMUM Monthly INSITU
<br />Solids, total suspended SAMPLE
<br /> MEASUREMENT
<br />0053010 PERMIT * 35 70 mg/L
<br />Effluent Gross REQUIREMENT 30DAAVG_ DAILY MX Monthly GRAB
<br />Solids
<br />settleable SAMPLE
<br />, MEASUREMENT
<br />00545 1 0
<br />PERMIT
<br />-
<br />Req: Mon.
<br />Req. Mon.
<br />mL/L
<br />Effluent Gross REQUIREMENT 30DA AVG DAILY MX Monthly GRAB
<br />Iron, total (as Fe) SAMPLE
<br /> MEASUREMENT
<br />0104510 PERMIT 3500 7000 tig/L
<br />Effluent Gross REQUIREMENT 30DAAVG DAILY MX Monthly GRAB
<br />Oil and grease SAMPLE
<br /> MEASUREMENT
<br />0358210 PERMIT ..*.*. ,..,,, .,*,,. .„... ,....,, 10' mg/L
<br />Effluent Gross REQUIREMENT INST MAX Contingent GRAB
<br />Flow, in conduit or thru treatment plant SAMPLE
<br /> MEASUREMENT
<br />50050 1 0 PERMIT Req. Mon. Req. Mon. Mgal/d """ '*•* *"*` ******
<br />Effluent Gross REQUIREMENT 30DA AVG DAILY MX Monthly 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 />TYPED OR PRINTED AUTHORIZED AGENT AREA Code NUMBER MMIDD/YYYY
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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 MAYBE WAIVED FOR >10YR,24HR EVENT-SEE I.A.1,PP 4-5, AND
<br /> I.A.2, P. 5
<br />FOR ROMNTS.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_01f06) Previous editions may be used. Page 1
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