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PARAMETER <br />hmentsAcrepr"r°`r°°dnutionor <br />Iumn under penalty of law that ehi'do nn` ntandall at” "d" <br />.uperv,n, n ,n auurdance with a »ntem designed to aaaure that qualified pe,onnel pmperly gather and <br />lie, (h • submitted toanatum subtted Based on my ingmry of the {tenon u, pernonn who manage the <br />` t emorNpmo dearlyroaparorf` gatheringthen the etonnarnnsubmmedu <br />°I M <br />u the b .t of t knowledge and belief we e a unu and tumble. I am aw are that there are . gnif ant <br />ry ta'ne<r+ +nnnbm,mng tat mr rmat mn, IncludingIncluding m p h y fin end mpr, m em tor known, <br />QUANTITY OR LOADING <br />QUALITY OR CONCENTRATION <br />E • <br />FREQUENCY <br />OF ANALYSIS <br />SAMPLE <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 />PERMIT <br />REQUIREMENT <br />••••" <br />" •' <br />6.5 <br />MINIMUM <br />' *•'•` <br />9 <br />MAXIMUM <br />SU <br />Monthly <br />INSITU <br />Solids, total suspended <br />0053010 <br />Effluent Gross <br />SAMPLE <br />MEASUREMENT <br />,. „.. <br />„ »„ <br />.,,,,, <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 />"”" <br />""" <br />""" <br />""" <br />Req. Mon. <br />30DA AVG <br />Req. Mon. <br />DAILY MX <br />mL/L <br />Monthly <br />GRAB <br />Iron, total (as Fe) <br />0104510 <br />Effluent Gross <br />SAMPLE <br />MEASUREMENT <br />.,.,., <br />,,, », <br />PERMIT <br />REQUIREMENT <br />3000 <br />30DA AVG <br />6000 <br />DAILY MX <br />ug/L <br />Monthly <br />GRAB <br />Oil and grease <br />Effluent Gross <br />SAMPLE <br />MEASUREMENT <br />,., „, <br />PERMIT <br />REQUIREMENT <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 />Mgal/d <br />Monthly <br />INSTAN <br />Solids, total dissolved <br />70295 1 0 <br />Effluent Gross <br />SAMPLE <br />MEASUREMENT <br />57 a <br />5 <br />Mq � <br />0 <br />J190 <br />(1-1.0 <br />PERMIT <br />REQUIREMENT <br />Req. Mon. <br />QRTR AVG <br />Req. Mon. <br />DAILY MX <br />m <br />Quarterly <br />GRAB <br />NAME/TITLE PRINCIPAL EXECUTIVE OFFICER <br />hmentsAcrepr"r°`r°°dnutionor <br />Iumn under penalty of law that ehi'do nn` ntandall at” "d" <br />.uperv,n, n ,n auurdance with a »ntem designed to aaaure that qualified pe,onnel pmperly gather and <br />lie, (h • submitted toanatum subtted Based on my ingmry of the {tenon u, pernonn who manage the <br />` t emorNpmo dearlyroaparorf` gatheringthen the etonnarnnsubmmedu <br />°I M <br />u the b .t of t knowledge and belief we e a unu and tumble. I am aw are that there are . gnif ant <br />ry ta'ne<r+ +nnnbm,mng tat mr rmat mn, IncludingIncluding m p h y fin end mpr, m em tor known, <br />•� <br />3 T r <br />TELEPHONE <br />DATE <br />/' <br />. ,. \QO <br />p / n <br />Lce t/• � Yt' S /Gt DM <br />4� <br />P -17' X06 <br />a� / v 2o /Z---- <br />MM/ IYYYY <br />NATURE OF PRI IPAL EXECUTIVE OFFICER OR <br />1 AUTHORIZED AGENT <br />/) <br />AREA Cod• I NUMBER <br />TYPED OR PRINTED <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: SANBORN CRK & ELK CRK MINES <br />LOCATION: 3737 HIGHWAY 133 <br />SOMERSET, CO 81434 <br />ATTN. James T Cooper, EVP <br />EPA Form 3320 -1 (Rev.01 /06) Previous editions may be used. <br />NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) <br />DISCHARGE MONITORING REPORT (DMR) <br />FROM <br />000000132 <br />PERMIT NUMBER <br />012 -A <br />DISCHARGE NUMBER <br />MONITORING PERIOD <br />MM /DD/YYYY <br />12/01/2011 <br />MM /DDIYYYY <br />12/31/2011 <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 -5, AND 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 />11/09/2011 Page 1 <br />f <br />