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NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)
<br />DISCHARGE MONITORING REPORT (DMR)
<br />PERMITTEE NAMEIADDRESS (Include Facility Name/Location d Different)
<br />NAME: Oxbow Mining LLC
<br />ADDRESS: PO Box 535
<br /> Somerset, CO 81434-0535
<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 />MM/DD/YYYY MM/DD/YYYY
<br />FROM 03/01/2011 TO 03/31/2011
<br />Form Approved
<br />oMa 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 Discharge
<br />
<br />QUANTITY OR LOADING
<br />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 ,,,», .,»» MINI6.5
<br />MUM ,,,»• 9
<br />MAXIMUM SU Monthly INSITU
<br />Solids, total suspended SAMPLE «»» .».» .»». _»..,
<br /> MEASUREMENT
<br />0053010
<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 />005451 0 PERMIT Req. Mon.
<br />30DA AVG Req. Mon.
<br />DAILY MX mUL
<br />Monthly
<br />GRAB
<br />Effluent Gross REQUIREMENT
<br />Iron, total (as Fe) SAMPLE ....« ..._ , .»».
<br /> MEASUREMENT
<br />0104510 PERMIT 3000
<br />30DA AVG 6000
<br />DAILY MX ug/L
<br />Monthly
<br />GRAB
<br />Effluent Gross REQUIREMENT
<br />Oil and grease SAMPLE ,.«» .,«., ....,. ».«. »» .
<br /> MEASUREMENT
<br />0358210
<br />Effluent Grass 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 />50050 1 0 PERMIT Req. Mon.
<br />30DA AVG Req. Mon.
<br />DAILY MX Mgalld ""'• ••"" """ """
<br />Monthly
<br />INSTAN
<br />Effluent Gross REQUIREMENT
<br />Solids, total dissolved SAMPLE ,».» ,.«.. .»». .«..,
<br /> MEASUREMENT
<br />70295 1 0 PERMIT Req. Mon.
<br />QRTR AVG Req. Mon.
<br />DAILY MX mg/L
<br />Quarterly
<br />GRAB
<br />Effluent Gross REQUIREMENT
<br />
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<br />COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)
<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 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 IS HIGHEST MONTHLY AVG. DURING PERIOD RPTD
<br />EPA Form 3320-1 (Rev.01106) Previous editions may be used. Page 1
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