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!S <br />NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) Form Approved <br />DISCHARGE MONITORING REPORT (DMR) OMB No. 2040.0004 <br />PERMITTEE NAME/ADDRESS (Include Facility Name/Location if Different) <br />NAME: Oxbow Mining LLC 000000132 009-A DMR Mailing ZIP CODE: 81424-0535 <br />ADDRESS: PO Box 535 <br />Somerset, CO 81434-0535 PERMIT NUMBER [DISCHARGE NUMBER MINOR <br />FACILITY: SANBORN CRK & ELK CRK MINES GUNIS <br />LOCATION: 3737 MONITORING PERIOD SURF RUNOFF TO N FK GUNIS RIVR <br />SOMERSET, HIGHWAY CO 81434 1MM/DD/YYYY MM/DD/YYYY External Outfall <br />SOMERSET, <br />ATTN: James T. Cooper, EVP ??`` FROM 02/01/2011 TO 02/28/2011 No Discharge <br /> <br />PARAMETER QUAN TITY OR LOADING Q UALITY OR CONC ENTRATION NO. FREQUENCY SAMPLE <br /> EX OF ANALYSIS TYPE <br /> VALUE VALUE UNITS VALUE VALUE VALUE UNITS <br />pH SAMPLE <br /> <br />MEASUREMENT »••» <br /> <br />»»- <br /> <br />»••» <br />0040010 <br /> <br />E <br />ffluent Gross PERMIT ""`• "•"' <br /> <br />„•„. <br />6.5 <br /> <br />..,... <br />9 <br /> <br />SU <br /> REQUIREMENT MINIMUM MAXIMUM Monthly (NSITU <br />Solids, total suspended SAMPLE <br /> <br />MEASUREMENT „ <br />.... <br />„`„• <br />`_"" <br />""" <br />0053010 <br />E <br />ffluent Gross PERMIT ... `.'..• •'•^• _•_••• <br />35 <br />70 <br /> <br />mgt <br /> REQUIREMENT 30DA AVG DAILY MX Monthly GRAB <br />Solids, settleable SAMPLE <br /> <br />MEASUREMENT •-„„ <br />..."` <br />""•' <br />•""• <br />0054510 <br /> <br />Effluent Gross PERMIT """ •""' <br />'„•» <br />Mon. <br />mL1L <br /> REQUIREMENT G <br />0DA AV DAILY MX Monthly GRAB <br />Iron, total (as Fe) SAMPLE <br /> <br />MEASUREMENT ... <br />0104510 <br /> <br />Effluent Gross PERMIT """ "_"` •""• <br />»„-• 3500 7000 ug/L <br /> REQUIREMENT 30DA AVG DAILY MX Monthly GRAB <br />Oil and grease SAMPLE <br /> <br />MEASUREMENT „,•„ <br />•»" <br />'»"' <br />"" <br />""'• <br />0358210 "`-" '•"" <br /> <br />Effluent Gross PERMIT <br />REQUIREMENT ••'•'• ••••_• <br />„•••• 10 mg/L <br /> INST MAX Contingent GRAB <br />Flow, in conduit or thru treatment plant SAMPLE <br /> MEASUREMENT """ "•'•' ••-••- -»-» <br />50050 1 <br />0 <br />Effluent Gross PERMIT Req. Mon. Req. Mon. MgaUd '••••• •••**• <br />„»• <br />••••• <br /> REQUIREMENT 30DA AVG DAILY MX Monthly INSTAN <br />Oil and grease visual SAMPLE <br /> <br />MEASUREMENT ,-••„ <br />""" <br />'•••'• <br />• •••• <br />»••„ <br />84066 1 0 <br /> <br />Effluent Gross PERMIT "•"` Req. Mon. Y=1;N=0 •••••• <br />•»„• <br />• <br />„•? <br /> REQUIREMENT INST MAX Monthly VISUAL <br />ME/TITLE PRINCIP L EXECUTIVE OFFICER ' ry'vfp°"Iry•fu-wrasdotimmt. aallam?nmmswc?pRp,mumRmydire<uanor <br />sup-on in emu.ithan-d-oode,•,?r?m.rq,wir,dp m,om,I-p iy 1 TELEPHONE DATE <br />j duatc the mfamuuon submitted. B.sed on my inquiry of the person or pawns <br />%j 4 We syucm, or those pttsoos dhecdy respovsiblc fw yatlscrinx nc? inf rm.tion, she infLion submmed is. <br />?' odsebecsnfmyk ,e?e.?belief.,_'? me.;dn-pia 1.m.?. d. d?eaRai?nifi?nt 1:2?1 ad <br />eC 5 panluc C subminin false infomutio incW ing the possibility of f and i npnwnmrnr fur kmw ing <br />4Z9 3/ZZ C4ro 0 3/0 4/?? <br />TYPED OR PRINTED SffkATURE OF PRINCIPAL EX UTIVE OFFICER OR <br />AUTHORIZED AGENT AREA Cod. NUMBER MM/DDlYYYY <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 /> IA.2, P. 5 <br />FOR ROMNTS.TDS MONITORING-SEE PART VI.A.2.G OF RATIONALE. 30 DAY AVG. IF HIGHEST MONTHLY AVG. DURING PERIOD REPRTD. <br />EPA Form 3320-1 (Rev.01106) Previous editions may be used. <br />Page 1