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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 />PARAMETER <br />pH <br />004001 0 <br />Effluent Gross <br />Solids, total suspended <br />005301 0 <br />Effluent Gross <br />Solids, settleable <br />005451 0 <br />Effluent Gross <br />Iron, total (as Fe) <br />010451 0 <br />Effluent Gross <br />Oil and grease <br />03582 1 0 <br />Effluent Gross <br />Flow, in conduit or thru treatment <br />50050 1 0 <br />Effluent Gross <br />Oil and grease visual <br />840661 0 <br />Effluent Gross <br />NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) <br />DISCHARGE MONITORING REPORT (DMR) <br />000000132 010-A <br />PERMIT NUMBER DISCHARGE NUMBER <br />rr <br />Form Approved <br />OMB No. 2040-0004 <br />DMR Mailing ZIP CODE: 81424-0535 <br />MINOR <br />MONITORING E%;d GUNIS <br />SEDIMENT POND TO SANBORN CREEK <br />MM/DD/YYYY External Outfall <br />FROM 04/01/2010 TO No Discharge <br />QUANTITY OR LOADING QUALITY OR CONCENTRATION NO. FREQUENCY SAMPLE <br />VALUE E( OF ANALYSIS TYPE <br /> VALUE UNITS VALUE VALUE VALUE UNIT <br /> <br />SAMPLE S <br />MEASURE .. • <br />MENT ,,,,• <br />PERMIT """ -•»•• _. ,,, <br />REQUIREMENT 6.5 -"•" 9 <br /> <br />MINIMUM SO <br /> <br />SAMPLE MAXIMUM <br />Monthly <br />INSITU <br />MEASUREMENT ""•' """ "••-• -»,» <br />PERMIT """ •••••• ,.,.,. <br />REQUIREMENT 35 70 <br /> <br />300A AVG n1glL _gIL <br />SAMPLE DAILY MX Monthly GRAB <br />MEASUREMENT """ """ "• •- »-,_• <br />PERMIT """ •••*•• .. .. <br />REQUIREMENT Req. Mon. Re <br />Mon <br /> <br />SAMPLE <br />30DA AVG q. <br />. <br />DAILY MX mUL <br />Monthly <br />GRAB <br />MEASUREME ... """ <br />NT <br />PERMIT ,_„" -"'•` <br />REQUIREMENT •-••_- 3500 <br /> 30DAAVG ug/L <br /> <br />SAMPLE DAILY MX <br />IvIX <br />Monthly <br />GRAB <br />MEASUREMENT <br /> <br />PERMIT """ •••••• ,..... <br />REQUIREMENT 10 <br /> mg/L <br />SAMPLE INST MAX Contingent GRAB <br />MEASUREMENT <br /> .»,•. ,,,,,, <br />• •t <br />PERMIT Req. Mon. <br />Req <br />Mon <br />M <br />l/ <br />m"' """ <br /> <br />REQUIREM <br />N 1 . <br />. <br />30DA <br />^VG UA ga <br />d <br />•""' <br />""" <br />r ILY MX »•»• <br />SAMPLE Monthly INSTAN <br />MEASUREMENT <br /> .,» .. <br />PERMIT <br />REQUIREMENT ••,••• Req. Mon. <br />INST MAX Y=1;N=0 <br />»•» <br />""" <br />""'• » <br />••»» <br /> <br /> Monthly VISUAL <br />nmtfrtrLE PRINCIPA EXECUTIVE OFFICER laerti[ underpenalryoflawrhal'hisdcumrnrandallanachmrns.cemprepaa undrrmydircceianor <br />wnn a system designed -assure Net qualified pcrsonn I l <br />svaplua cinc ??r,?r„ ardan«ahmlu«i. naaed an my inquiry orNe person „r reraana wn?"m y -d <br />TELEPHONE <br />n y:um. ar mo e p ao direnly map n inla r r gaNe ng Ne inr m ari.n, Ne inrn 6-n nmia<d ,. DATE <br />`?• r pemhlu'cs forfsuF"16'g fejseuinf ?mui .n, ncluJ ng Nend wmplete. 1 am aware hn Ncre are si ficam ,?pp <br />TYPED OR PRINTED r,aarions. pn.s=indin.rrneandimpris,rmnenr rrw?g 9e-7J`?LZ <br />SIGN RE OF PRINCIPAL EXECU 0 ' <br />E OFFICER OR <br />COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) AUTHORIZED AGENT AREA cello NUMBER MMloo/YYYY <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 I.A.1,PP 4-5, AND <br /> I.A.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 REPRTD. <br />EPA Form 3320-t (Rev.01106) Previous editions may be used. <br />Page 1