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NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)
<br />DISCHARGE MONITORING REPORT (DMR)
<br />PERM ITTEE 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 007-A
<br />PERMIT NUMBER DISCHARGE NUMBER
<br />MONITORING PERIOD
<br />MM/DD/YYYY MM/DD/YYYY
<br />FROM 05/01/2010 TO 05/31/2010
<br />r
<br />Form Approved
<br />OMB No. 2040-0004
<br />DMR Mailing ZIP CODE: 81424-0535
<br />MINOR
<br />GUNIS
<br />SEDIMENT POND TO HUBBARD CREEK
<br />External Outfall
<br />No Discharge
<br />PARAMETER QUANTITY OR LOADING QUALITY OR CONCENTRATION NO. FREQUENCY SAMPLE
<br /> EX OF ANALYSIS TYPE
<br />
<br /> VALUE VALUE UNITS VALUE VALUE VALUE UNITS
<br />pH SAMPLE ,,.,,,
<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 /> MEASUREMENT
<br />0053010 ",,,, ""» •"
<br />
<br />Effluent Gross PERMIT ~• '•"" 35 70 m
<br /> REQUIREMENT 30DA AVG DAILY MX Monthly GRAB
<br />Solids, settleable SAMPLE
<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 />0104510
<br />
<br />Effluent Gross PERMIT """ '•"" •"~• ••••••
<br />DA A
<br />ILY M
<br />ug2
<br /> REQUIREMENT 30
<br />VG DA
<br />X Monthly GRAB
<br />Oil and grease SAMPLE
<br />
<br />MEASUREMENT
<br />""' ,,,,•, ,~,,
<br />03582 1 0
<br />Effluent Gross PERMIT .."" "" ' •~'•` •'•••• . ••,,,• 10 m9/L
<br /> REQUIREMENT INST MAX Contingent GRAB
<br />Flow, in conduit or thru treatment plant SAMPLE
<br /> MEASUREMENT '•'.,` ......
<br />
<br />5005010 PERMIT Req. Mon. Req. Mon. MgaUd •~~• •••••• ......
<br />...~•
<br />Effluent Gross "Ent IREi?iEi?T
<br />.K..rn 30DA AVr, flnll V sAY Monthly INSTAN
<br />Oil and grease visual SAMPLE
<br />
<br />MEASUREMENT ...... ...». ...... ......
<br />8406610 •••
<br /> PERMIT Req. Mon. Y=1;N=0 •~•~ •~••• •»••• .».
<br />••
<br />Effluent Gross REQUIREMENT INST MAX Monthly VISUAL
<br />AMEMTLE PRINCIP EXECUTIVE OFFICER Icenify under pemlty of law that this daumrnr and ell aawhown., were prepared under my direction or
<br />91
<br />VV sLq--ion in accordance with a q- dnignd m assure that q-l,f,d personnelpropenly gather ad
<br />evaluate the ml-i- su1ninW
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<br />Vs or those penom duealy responsible for gathuing the infomutiun, the mfurwtion aubmined is,
<br />in the I of my knowledge ad belle[ we. accurate, ed complete. I am aware dot there are significant
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<br />IGNAT _
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<br />TYPED OR PRINTED URE OF INCIPAL EXECUTIVE OFFICER OR
<br /> AUTHORIZED AGENT AREA Cody NUMBER
<br />COMMENTS AND EXPLANATION nF ANV Vint ATrn uc loess. _u _..__?
<br />M DATE
<br />/P _0-- ZZ/ 0
<br />MM/DWYYYY
<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 110YR,24HR EVENT-SEE IA,1,PP 4-5, AND
<br /> IA.2, P. 5
<br />FOR ROMNTS.TDS MONITORING-SEE PART VI.A2.G OF RATIONALE. 30 DAY AVG. IS HIGHEST MONTHLY AVG. DURING PERIOD REPRTD.
<br />EPA Form 3320-1 (Rev.01/06) Previous editions may be used.
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