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NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) <br />DISCHARGE MONITORING REPORT (DMR) <br />PERMITTEE 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 /> SAMPLE <br /> MEASUREMENT <br />00400 1 0 <br /> PERMIT <br />Effluent Gross REQUIREMENT <br />Solids, total suspended SAMPLE <br /> MEASUREMENT <br />005301 0 <br /> PERMIT <br />Effluent Gross REQUIREMENT <br />Solids, settleable SAMPLE <br /> MEASUREMENT <br />00545 1 0 <br /> PERMIT <br />Effluent Gross REQUIREMENT <br />Iron, total (as Fe) SAMPLE <br /> MEASUREMENT <br />010451 0 <br /> PERMIT <br />Effluent Gross REQUIREMENT <br />Oil and grease SAMPLE <br /> MEASUREMENT <br />035821 0 <br /> PERMIT <br />Effluent Gross REQUIREMENT <br />Flow, in conduit or thru treatment plant SAMPLE <br /> MEASUREMENT <br />500501 0 <br /> PERMIT <br />Effluent Gross REQUIREMENT <br />Oil and grease visual SAMPLE <br /> MEASUREMENT <br />840661 0 <br /> PERMIT <br />Effluent Gross REQUIREMENT <br />000000132 016-A <br />PERMIT NUMBER DISCHARGE NUMBER <br />MONITORING PERIOD <br />MM/DD/YYYY MM/DD/YYYY <br />FROM 07/01/2010 TO 07/3112010 <br />QUANTITY OR LOADING <br />VALUE VALUE UNITS <br /> <br />16 <br />DA AVG <br />01`{ <br />Req. Mon. <br />DAILY MX <br />d <br />Req. Mon. <br />INST MAX <br />0 <br />VALUE <br />?, yS <br />6.5 <br />MINIMUM <br />QUALITY OR CON <br />VALUE <br />8 <br />35 <br />30DA AVG <br /><0,1 <br />Req. Mon. <br />30DA AVG <br />90 <br />3000 <br />30DA AVG <br />Totem? ??fsot?•:?o/ Solids - _ _Ab 00 <br />vi () V YO <br />G?q? <br />AMEITITLE P PAL ECUTIVE OFFICER `e tify under pm.1iy of law that this d_.... ard sll anachmrn6 acre prcpa eJ uncle my d nc ion or <br />02 supemsion in rdance h 3)stcm designed w assure that qualified Pcrwtmel p -Ply gather and ^r TELEPHONE DATE <br />evaluate We infumut 1, suhtnilud. Based un my Inquiry of the person or persons wM> manage the a. <br />/ <br />-VA system, or Mosc persons dvemly responsible Cur gathrnng the i"f rmation, Ne infomwtion submined is, ?,,,y !- <br />OR r? s PRINTED w the best of b knuwledge and belief, we, nding and complete 1 am aware that here a e sig z:ii 6 O? ?, 0 <br />t <br />F.-hi. for mbmiuing Calx ivt ---1-ding l he pussibiliry? of f anJ impriv,omem f r knowing <br />AGENT ? `? ?? ` Sb'0 <br />TYPED V. <br />GNATURE OF PR CIPAL EXECUTIVE OFFICER OR <br />AUTHORIZED ARCade NUMBER M oomyv <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,24 HR PRECIP EVENT;SETTLEABLE SOLIDS LIMITS MAY BE WAIVED FOR >10YR,24HR EVENT-SEE LAA, PP 4-5, AND <br /> I.A.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 RPTD. <br />EPA Form 3320-1 (Rev.01/06) Previous editions may be used. <br />Page 1 <br />Form Approved <br />OMB No. 2040-0004 <br />DMR Mailing ZIP CODE: 81424-0535 <br />MINOR <br />GUNIS <br />SURFACE RUNOFF TO ELK CREEK <br />External Outfall <br />No Discharge <br />CENTRATION NO. <br />EX FREQUENCY <br />OF ANALYSIS SAMPLE <br />TYPE <br />VALUE UNITS <br /> <br />?• y5' sit O t fie IN517t4 <br />9 <br />MAXIMUM SU 3 <br />Monthly <br />INSITU <br /> <br />g `"`5 Q c 3 G?Lv <br />70 <br />DAILY MX mg/L <br />Monthly <br />GRAB <br /> <br /> <br />Req. Mon. <br />DAILY MX UL <br />Monthly <br />GRAB <br /> <br />78 u Q 0 / 3a Cn?b <br />6000 <br />DAILY MX ug/L <br />Monthly <br />GRAB <br /> <br /> G <br />10 <br />INST MAX mg/L <br />Contingent <br />GRAB <br /> <br /> 0 3? I NSmr'j <br /> Monthly INSTAN <br />.. ...... p ?/3o VIS4*-L <br /> Monthly VISUAL