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NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)
<br />DISCHARGE MONITORING REPORT (DMR)
<br />PERMITTEE NAMEIADDRESS (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 013-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 />RUNOFF TO N FORK 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 />00530 1 0
<br />Effluent Gross PERMIT
<br />REQUIREMENT """ "" 35
<br />30DA AVG 70
<br />DAILY MX mg/L
<br />Monthly
<br />GRAB
<br />Solids, settleable SAMPLE ,,,.., ..,.. ..,«, .....,
<br /> MEASUREMENT
<br />00545 1 0 PERMIT Req. Mon. Req. Mon. mUL
<br />Effluent Gross REQUIREMENT 30DA AVG DAILY MX Monthly GRAB
<br />Iron, total (as Fe) SAMPLE ......
<br />......
<br />......
<br />......
<br /> MEASUREMENT
<br />0104510 PERMIT """ 3000 6000 ug/L
<br />Effluent Gross REQUIREMENT 30DA AVG DAILY Mx Monthly 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 /> MEASUREMENT
<br />500501 0 PERMIT Req. Mon. Req. Mon. MgaVd """ `•"`• ,,,,,, ••'••'
<br />Effluent Gross REQUIREMENT 30DA AVG DAILY MX Monthly INSTAN
<br />Oil and grease visual SAMPLE ,.....
<br />'•"'•
<br />..•...
<br />.«.«
<br /> MEASUREMENT
<br />84066 1 0
<br />Effluent Gross PERMIT
<br />REQUIREMENT Req. Mon.
<br />INST MAX Y=1;N=0 """ """ """ •""'
<br />Monthly
<br />VISUAL
<br />NAME/TITLE PRINCIPAL EXECUTIVE OFFICER IeCniryunderpm, ynruw,n?,m:ao mm?n,oa.uen,?mn?,.wrR n<anw?mya «unnnr
<br />suprn,:inn in accordance witha .yaem dnigmd m assure that qualified
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<br />evalwie the infurmmiun sub-i, a. Based nn my ingmry of the pe,wa u, d
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<br />m the best of my knowledge and behet, -. --,..d-.p1- I am aware that there are aig iflcant
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<br />?r. penahies fm sub-i4 false inf rmatiun, includinS the p,ssibihry u(! ana imPrisumam fm knowing
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<br />SIGNA E OF PRINCIPAL EXECUTI OFFICER OR
<br />TYPED O PRINTED AUTHORIZED AGENT AREA Coda NUMBER MMIDD/Y1'YY
<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 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.01106) Previous editions may be used. Page 1
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