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NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) Form Approved <br />DISCHARGE MONITORING REPORT (DMR) OMB No. 2040-0004 <br />PERMITTEENAME/ADDRESS (Include Facility Name/Location if Different) <br />NAME: Oxbow Mining LLC 000000132 010-A DMR Mailing ZIP CODE: 81424-0535 <br />ADDRESS: PO Box 535 PERMIT NUMBER DISCHARGE NUMBER MINOR <br />Somerset, CO 81424-0535 <br />FACILITY: SANBORN CRK & ELK CRK MINES GUNIS <br />LOCATION: 3737 HIGHWAY 133 MONITORING PERIOD SEDIMENT POND TO SANBORN CREEK <br />SOMERSET, CO 81434 MM/DD/YYYY MM/DD/YYYY External Outfall <br />ATTN: James T. Cooper, EVP FROM 07/01/2010 TO 07/31/2010 No Discharger <br /> <br />PARAMETER QUAN TITY OR LOADING Q UALITY OR CONC ENTRATION O. FREQUUE <br />CY S MPEE <br /> E LY TYP <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 />E <br />ffluent Gross PERMIT "•-" ""» "'•'• <br /> <br />••~•• <br />35 <br />70 <br /> <br />mg/L <br /> REQUIREMENT 30DA AVG DAILY Monthly GRAB <br />Solids, settleable SAMPLE <br /> <br />MEASUREMENT .«... .~,.. «.«. ,«.., <br />005451 0 <br /> <br />Effluent Gross PERMIT <br />REQUIREMENT """ "»» "•`» • Req. Mon. Req. Mon. MUL <br /> 30DA AVG DAILY MX Monthly GRAB <br />Iron, total (as Fe) SAMPLE <br /> MEASUREMENT <br />0104510 <br /> <br />Effluent Gross PERMIT """ "»" •'•»' <br />~••• <br />DA A <br />7000 <br /> <br />uglL <br /> REQUIREMENT 30 <br />VG MX <br />DAILY Monthly GRAB <br />Oil and grease SAMPLE <br /> MEASUREMENT «-•" '«"- """ """' <br />0358210 <br /> PERMIT ",,,, ,,,," •»••' „•„• •»••• <br />E <br />ffluent Gross <br />REQUIREMENT 10 <br />INST MAX <br />mg/L <br />Contingent <br />GRAB <br />Flow, in conduit or thru treatment plant SAMPLE <br /> MEASUREMENT """ "'»' •~•» -~--• <br />500 <br />501 0 <br />Effluent Gross PERMIT <br />REQUIREMENT Req. Mon. <br />30DA AVG Req. Mon. <br />DAILY MX MgaVd ••"'• ••**•• ..••.• <br />»*••• <br /> Monthly INSTAN <br />Oil and grease visual SAMPLE <br /> <br />MEASUREMENT ,,,,,, <br />-~•-- <br />84066 1 0 <br /> <br />Effluent Gross PERMIT Req. Mon. Y=1;N=0 •'•••• •••••• <br />fe»» <br />•t•»• <br /> REQUIREMENT INST MAX Monthly VISUAL <br />ME/TITLE PRINCIPAL EXECUTIVE OFFICER ' cemty nnder P-4 of law that this d-- and all amchmmt - prcpamd muter my di-i..., <br />raiin rdancewima>yan &d igneamaasarndouguahredp--1 a Iygarherana TELEPHONE DATE <br />00 upon iaa n un inr?rmadnn ?nbma nd. sa ea n y mgr nrmn p sun ar person w menage mn <br />rystem, m thou perso didg?eeny p wiblc r garhering she intbnnae;u0. Nnuinfarmation:ubmincd is. (,?My t I ?l a.. <br />m dw: be.? of my knowlee and belief, uvc, accureu', and wmplem. I am aware dim d,ere arc signif-- TC !?T 0 r <br />ee. {? ?? pnnaltiesfursubmmngfalcnfomvdun,indudingMpussibihryuffnandimp?nnm<mrrwnwns GNATUREOF PRINCIPAL EXECUTIVE OFFICERUK <br />??ulanons. <br />'/ <br />TYPED OR PRINTED AUTHORIZED AGENT AREA coa. NUMBER DD/YYYY <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.01/06) Previous editions may be used. <br />Page 1