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PERMITTEE NAMEI ADDRESS (Include Facility Name /LocationifDifferent) <br />NAME: Oxbow Mining LLC <br />ADDRESS: PO Box 535 <br />Somerset, CO 81434 -0535 <br />FACILITY: SANBORN CRK & ELK CRK MINES <br />LOCATION: 3737 HIGHWAY 133 <br />SOMERSET, CO 81434 <br />ATTN: Mike Ludlow Exec VP <br />NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) <br />DISCHARGE MONITORING REPORT (DMR) <br />C00000132 009 -A <br />PERMIT NUMBER DISCHARGE NUMBER <br />MONITORING PERIOD <br />MM /DD/YYYY MM /DD/YYYY <br />04/01/2015 04/30/2015 <br />Form Approved <br />OMB No. 2040 -0004 <br />DMR Mailing ZIP CODE: 81424 -0535 <br />MINOR <br />GUNIS <br />SURF RUNOFF TO N FK GUNIS RIVR <br />External Outfall <br />No Discharge <br />NAME /11TLEPRINCIPAL EXECUTIVE OFFICER <br />Icemryunderpenalty oflawthatthisdocumentandallattachmentswerepreparedundermydirectionor <br />supervision In accordance with a system designed to assure that qualified personnel proper" gather and <br />QUANTITY OR LOADING <br />QUALITY OR CONCENTRATION <br />NO. <br />FREQUENCY <br />SAMPLE <br />PARAMETER <br />Q <br />EX <br />OF ANALYSIS <br />TYPE <br />VALUE <br />VALUE <br />UNITS <br />VALUE <br />VALUE <br />VALUE <br />UNITS <br />pH <br />SAMPLE <br />MEASUREMENT <br />004001 0 <br />PERMIT <br />""• * "* <br />' * ***" <br />"*"`* <br />6.5 <br />" *' *" <br />9 <br />SU <br />Monthly <br />INSITU <br />Effluent Gross <br />REQUIREMENT <br />MINIMUM <br />MAXIMUM <br />Solids, total suspended <br />SAMPLE <br />•'•` *• <br />"` *•"• <br />"• ""*• <br />**'"*" <br />MEASUREMENT <br />005301 0 <br />PERMIT <br />" ***' <br />****** <br />**'*** <br />`*'* * <br />35 <br />70 <br />mg /L <br />Monthly <br />GRAB <br />Effluent Gross <br />REQUIREMENT <br />30DA AVG <br />DAILY MX <br />Solids, settleable <br />SAMPLE <br />•••••* <br />'••'•• <br />MEASUREMENT <br />005451 0 <br />PERMIT <br />** * **' <br />'***** <br />*****' <br />* *' * ** <br />Req. Mon. <br />Req. Mon. <br />mUL <br />Monthly <br />GRAB <br />Effluent Gross <br />REQUIREMENT <br />30DA AVG <br />DAILY MX <br />Iron, total [as Fe] <br />SAMPLE <br />MEASUREMENT <br />0104510 <br />PERMIT <br />"**" <br />*'**"* <br />"***'" <br />****** <br />3500 <br />7000 <br />ug /L <br />Monthly <br />GRAB <br />Effluent Gross <br />REQUIREMENT <br />30DA AVG <br />DAILY MX <br />Oil and grease <br />SAMPLE <br />'**' *' <br />*** "' <br />" "'• <br />""" <br />*** *" <br />MEASUREMENT <br />0358210 <br />PERMIT <br />'*' "" <br />* " *" <br />'*'**' <br />*'** ** <br />*****" <br />10 <br />mg /L <br />Contingent <br />GRAB <br />Effluent Gross <br />REQUIREMENT <br />INST MAX <br />Flow, in conduit or thru treatment plat <br />SAMPLE <br />MEASUREMENT <br />500501 0 <br />PERMIT <br />Req. Mon. <br />Req. Mon. <br />MGD <br />"'*'* <br />**"*** <br />"* *' ** <br />" """' <br />Monthly <br />INSTAN <br />Effluent Gross <br />REQUIREMENT <br />30DA AVG <br />DAILY MX <br />Oil and grease visual <br />SAMPLE <br />MEASUREMENT <br />840661 0 <br />PERMIT <br />" "" <br />Req. Mon. <br />Y =1;N =0 <br />****"* <br />"***"* <br />* "" <br />****** <br />Monthly <br />VISUAL <br />Effluent Gross <br />REQUIREMENT <br />INST MAX <br />NAME /11TLEPRINCIPAL EXECUTIVE OFFICER <br />Icemryunderpenalty oflawthatthisdocumentandallattachmentswerepreparedundermydirectionor <br />supervision In accordance with a system designed to assure that qualified personnel proper" gather and <br />1 <br />TELEPHONE DATE <br />aluate the information submitted Based on my inquiry of the person or persons .. manage the <br />system, or those persons directly responsible for gathefi g the information, the Information submitted m. <br />1(•/1 <br />/! ( ry/ <br />Q <br />to the best of my knowledge and belief. rue, accurate, and complete. I am aware that there are <br />�f <br />�,d ,4Zg_ Q :6 6.5-, 61-1 <br />f <br />SIGNATURE OF PRINCIPAL EXECUTIVE OFFICER OR <br />significant penaitles for submitting false information. Including the possibility of fine and imprisonment to <br />m°^ng ^e�tie^a• <br />AUTHORIZED AGENT <br />TYPED OR PRINTED <br />ARFacode <br />NUMBER MM/DDM -YY <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 <br />EVENT -SEE I.A.1,PP 4 -5, AND I.A.2, P. 5 FOR RQMNTS.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.01 106) Previous editions may be used. 10/17/2013 Page 1 <br />