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PARAMETER <br />1 certify under penalty of law that this document and all attachments ,sere prepared under my direction or <br />Aipervision in accordance with a syddin de,igned to h qualified . 1 p p I th <br />QUANTITY OR LOADING <br />QUALITY OR CONCENTRATION <br />rg - n --- <br />FREQUENCY <br />OF ANAL YSY LYSIS <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 />,,,— <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 />,,.,,. <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 />,,,.., <br />PERMIT <br />REQUIREMENT <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 />PERMIT <br />REQUIREMENT <br />3500 <br />30DA AVG <br />7000 <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 />PERMIT <br />REQUIREMENT <br />" "" <br />" "" <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 />Mgal /d <br />~•~' <br />Monthly <br />INSTAN <br />Solids, total dissolved <br />70295 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 />mg/L <br />Quarterly <br />GRAB <br />NAMEITITLE PRINCIPAL EXECUTIVE OFFICER <br />1 certify under penalty of law that this document and all attachments ,sere prepared under my direction or <br />Aipervision in accordance with a syddin de,igned to h qualified . 1 p p I th <br />) /A!' <br />t(. . / �..t{� C <br />• - - V ' <br />• • <br />' 1 th p 1 ttJb - J 4r� ftl pc' pet h - - 6 • th • <br />u o persons directly p bl tor h b I - t I information bn d' l <br />h he t knowledge d res belief: d complete. I that then - r <br />j 7 <br />f ,t{ yG9- 5Yd 6 <br />®® <br />M r D/YYYY <br />paw t. I ,abmntmE r 1 wrmmn,n, mmng the p .miltt> a me d tmprw nm t ri � t .,n s � IGNATURE <br />1 <br />� Q <br />OF PRINCIPAL EXECUTIVE OFFICER OR <br />AUTHORIZED AGENT <br />AREA Code 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 />C00000132 <br />PERMIT NUMBER <br />010 - A <br />DISCHARGE NUMBER <br />MONITORING PERIOD <br />M M /DD /YYYY <br />06/01/2011 <br />MM /DD/YYYY <br />06/30/2011 <br />TO <br />Form Approved <br />OMB No. 2040-0004 <br />DMR Mailing ZIP CODE: 81424-0535 <br />MINOR <br />GUNIS <br />SEDIMENT POND TO SANBORN CREEK <br />External Outfall <br />No Discharg <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 AND IA2, 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 />Page 1 <br />