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PARAMETER <br />1 ..nth under p Iry of law that duadotum.nt and all attachments w tr. prepared under mt direction or <br />, aperautonms wtdan. ewnh t,¢ mdevgnedtoaa, wethatqualthdpemonnel probed )gathervM <br />I t th i t td e d y 4 ry I h pe pc wht g th <br />, the at thou p d knowledge e and belief for gahcnn th.. plete f am the mrormrttoo submitted lb <br />penaltm e loomyncluding <br />I <br />QUANTITY OR LOADING <br />QUALITY OR CONCENTRATION <br />NO. <br />EX <br />FREQUENCY <br />OF ANALYSIS <br />SAMPLE <br />TYPE <br />VALUE <br />VALUE <br />UNITS <br />VALUE <br />VALUE <br />VALUE <br />UNITS <br />pH <br />0040010 <br />Effluent Gross <br />SAMPLE <br />MEASUREMENT <br />AREA code <br />NUMBER <br />MM/DD/YYYY <br />PERMIT <br />REQUIREMENT <br />6.5 <br />MINIMUM <br />9 <br />MAXIMUM <br />SU <br />Monthly <br />INSITU <br />Solids, total suspended <br />0053010 <br />Effluent Gross <br />SAMPLE <br />MEASUREMENT <br />PERMIT <br />REQUIREMENT <br />35 <br />30DA AVG <br />70 <br />DAILY MX <br />mg/L <br />Monthly <br />GRAB <br />Solids, settleable <br />00545 1 0 <br />Effluent Gross <br />SAMPLE <br />MEASUREMENT <br />PERMIT <br />REQUIREMENT <br />Req Mon. <br />30DA AVG <br />Req. Mon. <br />DAILY MX <br />mUL <br />Monthly <br />GRAB <br />Iron, total (as Fe) <br />0104510 <br />Effluent Gross <br />SAMPLE <br />MEASUREMENT <br />PERMIT <br />REQUIREMENT <br />3000 <br />300A AVG <br />6000 <br />DAILY MX <br />ug/L <br />Monthly <br />GRAB <br />Oil and grease <br />0358210 <br />Effluent Gross <br />SAMPLE <br />MEASUREMENT <br />,.,... <br />... ». <br />PERMIT <br />REQUIREMENT <br />10 <br />INST MAX <br />mg/L <br />Contingent <br />GRAB <br />Flow, in conduit or thru treatment plant <br />50050 1 0 <br />Effluent Gross <br />SAMPLE <br />MEASUREMENT <br />PERMIT <br />REQUIREMENT <br />Req. Mon. <br />30DA AVG <br />Req. Mon. <br />DAILY MX <br />MgaUd <br />Monthly <br />INSTAN <br />Oil and grease visual <br />84066 1 0 <br />Effluent Gross <br />SAMPLE <br />MEASUREMENT <br />PERMIT <br />REQUIREMENT <br />Req. Mon. <br />INST MAX <br />Y =1;N =0 <br />••'•— <br />Monthly <br />VISUAL <br />NAME /TITLE PRINCIPAL EXECUTIVE OFFICER <br />! <br />1 ..nth under p Iry of law that duadotum.nt and all attachments w tr. prepared under mt direction or <br />, aperautonms wtdan. ewnh t,¢ mdevgnedtoaa, wethatqualthdpemonnel probed )gathervM <br />I t th i t td e d y 4 ry I h pe pc wht g th <br />, the at thou p d knowledge e and belief for gahcnn th.. plete f am the mrormrttoo submitted lb <br />penaltm e loomyncluding <br />I <br />(/ <br />Kr 2-:-.-i-, <br />TELEPHONE <br />DATE <br />J A Yf y <br />.)( EC, <br />7 -� <br />�-a <br />t/- S f }' <br />M* <br />— <br />N <br />/-5??(-).6 <br />O <br />O L / Zo t 2--- <br />/ <br />GNATURE OF PRINCIPAL EXECUTIVE OFFICER OR <br />AUTHORIZED AGENT <br />TYPED OR PRINTED <br />AREA code <br />NUMBER <br />MM/DD/YYYY <br />PERMITTEE NAME /ADDRESS (Include Facility Name /Location if Different) <br />NAME: Oxbow Mining LLC <br />ADDRESS: PO Box 535 <br />Somerset, CO 81434 -0535 <br />FACILITY: <br />LOCATION: <br />SANBORN CRK & ELK CRK MINES <br />3737 HIGHWAY 133 <br />SOMERSET, CO 81434 <br />ATTN James T. Cooper, EVP <br />EPA Form 3320 -1 (Rev.01106) Previous editions may be used. <br />NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) <br />DISCHARGE MONITORING REPORT (DMR) <br />FROM <br />C00000132 <br />PERMIT NUMBER <br />012 -A <br />DISCHARGE NUMBER <br />MONITORING PERIOD <br />MM /DD/YYYY <br />02/01/2012 <br />MM /DD/YYYY <br />02/29/2012 <br />TO <br />DMR Mailing ZIP CODE: 81424 -0535 <br />MINOR <br />GUNIS <br />SEDIMENT POND TO ELK CREEK <br />External Outfall <br />Form Approved <br />OMB No. 2040 -0004 <br />No Discharge <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 I.A.1,PP 4 AND IA.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 />11/09/2011 Page 1 <br />