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NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)
<br />DISCHARGE MONITORING REPORT (DMR)
<br />PERMITTEE NAME/ADDRESS (Include Facility Name/Location it 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 017-A
<br />PERMIT NUMBER DISCHARGE NUMBER
<br />MONITORING PERIOD
<br />MMIDD/YYYY MM/DDIYYYY
<br />FROM 05/01/2010 TO 05/31/2010
<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 RIV
<br />External Outfall
<br />No DlschargeIr-
<br />
<br />PARAMETER QUANTITY OR LOADING 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 />
<br />0040010
<br />Effluent Gross PERMIT ",,,, 6.5 "'»• 9 SU
<br /> REQUIREMENT MINIMUM MAXIMUM Monthly INSITU
<br />Solids, total suspended SAMPLE .,,,,, ,,,,,,
<br />
<br />MEASUREMENT ,,,,,, •„»•
<br />0053010 "•,•• ""•
<br />
<br />Effluent Gross PERMIT ` `•••'• 35 70 rng/L
<br /> REQUIREMENT 30DA AVG DAILY MX Monthly GRAB
<br />Solids, settleable SAMPLE ,,,,» "_
<br />'•'
<br /> MEASUREMENT """ """
<br />005451 0 •,,•„ "`•" "'
<br />
<br />Effluent Gross PERMIT •" '•••» Req. Mon. Req. Mon. MUL
<br /> REQUIREMENT 30DA AVG DAILY MX Monthly GRAB
<br />Iron, total (as Fe) SAMPLE
<br /> MEASUREMENT
<br />
<br />0104510
<br />Effluent Gross PERMIT """ """ '•"" "•"• 3000 6000 ug/L
<br /> REQUIREMENT 30DA AVG DAILY MX Monthly GRAB
<br />Oil and grease SAMPLE ,,,,,,
<br />
<br />MEASUREMENT ,.,•.. ..»:
<br />
<br />0358210
<br />E
<br />ffluent Gross PERMIT ,,,,e, ""'• ••"" '••••• •'••»
<br />10
<br />m9/L
<br /> REQUIREMENT INST MAX Contingent GRAB
<br />Flow, in conduit or thru treatment plant SAMPLE
<br />I MEASUREMENT1
<br />
<br />500501 0 PERMIT Req. Mon. Ran, Mnn. Ivfri •••••• •••••• ...... ......
<br />Effluent Gross REQUIREMENT 306A AVG DAILY MX Monthly INSTAN
<br />Oil and grease visual SAMPLE ,,,,,,
<br /> MEASUREMENT
<br />840661 0
<br /> PERMIT Req. Mon. Y=1;N=0 '»'» •••••• »•••• .»...
<br />Effluent Gross REQUIREMENT INST MAX Monthly VISUAL
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<br />TYPE OR PRINTED m. IGNATURE OF P NCIPAL EXECUTIVE OFFICER OR
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<br />(`f]MMCNTC AMn CY01 Au.11- - .- AUTHORIZED AGENT ?+EA C•d• NUMBER MM/ /YYYY
<br />TSS & TOTAL IRON LIMITS WILL BE WAIVED, AND SETTLEABLE SOLIDS LMT APPLIES FOR -10YR,24HR PRECIP EVENT;SETTLEABLE SOLIDS LIMIT MAY BE WAIVED FOR >10YR,24HR EVERT-SEE I.A.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 RPTD
<br />3dN•7 tecev.vuuol rrevlous editions may be used. Page 1
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