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NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) Form Approved <br />DISCHARGE MONITORING REPORT (DMR) OMB No. 2040-0004 <br />PERMITTEE NAME/ADDRESS (include Facility Name/Location if Different) <br />NAME: Oxbow Mining LLC <br />000000132 010-A DMR Mailing ZIP CODE: 81424-0535 <br />ADDRESS: PO Box 535 <br />Somerset, CO 81424-0535 PERMIT NUMBER DISCHARGE NUMBER MINOR <br />FACILITY: SANBORN CRK & ELK CRK MINES GUNIS <br />LOCATION: 3737 HIGHWAY 133 MONITORING PERIOD SEDIMENT POND TO SANBORN CREEK <br />SOMERSET, CO 81434 MM/DDffYYY MM/DD/YYYY External Outfall <br />ATTN: James T. Cooper, EVP FROM 03/01/2010 TO 03/31/2010 No Discharge <br /> <br />PARAMETER QUAN TITY OR LOADING Q UALITY OR CONC ENTRATION FX STM <br />P <br />E <br /> OF ANALYSIS P <br />E <br /> VALUE VALUE UNITS VALUE VALUE VALUE UNITS <br />pH SAMPLE <br /> MEASUREMENT <br />0040010 <br />Effluent Gross PERMIT ""„ <br />'••»• <br />N <br />M <br />ff•«• <br />SU <br /> REQUIREMENT MI <br />I <br />UM MAXIMUM Monthly INSITU <br />Solids, total suspended SAMPLE <br /> <br />MEASUREMENT ,,,,=- <br />0053010 <br /> PERMIT """ •"'•' '"«= •••«' <br /> <br />Effluent Gross <br />REQUIREMENT 35 <br />30DA AVG 70 <br />DAILY MX mg/L <br />Monthly <br />GRAB <br />Solids, settleable SAMPLE <br /> MEASUREMENT <br />0054510 <br /> <br />Effluent Gross PERMIT <br /> <br />REQUIREMENT """ `•"" <br /> <br />•m•• <br /> <br />•»-« <br />Req. Mon. <br />Req. Mon. <br />mL/L <br /> 30DA AVG DAILY MX Monthly GRAB <br />Iron, total (as Fe) SAMPLE <br /> MEASUREMENT <br />0104510 <br /> <br />Effluent Gross PERMIT """ •'•'•' "'«• ••«__ <br />DA A <br />O <br />O <br />ug/L <br /> REQUIREMENT 30 <br />VG DAIL <br />Y <br />MX Monthly GRAB <br />Oil and grease SAMPLE <br /> MEASUREMENT <br />0358210 <br /> PERMIT „"" ,,,,,, *«•'• •»•« <br /> <br />Effluent Gross <br />REQUIREMENT 10 mg/L <br /> INST MAX Contingent GRAB <br />Flow, in conduit or thru treatment plant SAMPLE <br /> MEASUREMENT •""' ••'«• ••« ...... <br />500501 0 <br /> PERMIT Req. Mon. Req. Mon M <br />aUd «'«. ••«,• <br />Effluent Gross REQUIR 30DA AVG . <br />DAILY MX g •••.•• ••«?• <br /> EMENT Monthly INSTAN <br />Solids, total dissolved SAMPLE <br /> MEASUREMENT <br />702951 0 <br /> PERMIT ",,,, ""'• ""•• ••«• <br /> <br />Effluent Gross <br />REQUIREMENT Req. Mon. Req. Mon. mg/L <br /> 30DA AVG DAILY MX Quarterly GRAB <br /> <br />1 ccrtity under <br />LE PRINCIPAL EXECUTIVE -.111 f law that IN, d. n-1 and all ...h- were pmpved under m d' <br />OFFICER r ,h,, a d <br />ap<ni?i.n.... u win s,y.Imn d«ignYdm ,asw Kufaaprlra nap lha.ana TELEPHONE DATE <br />evaluate the ivfurmation submiueJ. Bash an my inquiry off fl- persw m persons whu mange the <br />system, or those pers.vs dilwly responsibk fm gathering the laf ati.n, the information submitted is, 'M/ 4 Q <br />to dK bnn army knowlcd1 and bclirf, mu, accurate. and complete. I am aware That Iherc arc sign ficent ! • O 9.Z9- s l Z Z ?` /(?•, /z„ 0 JO <br />a t Pcnalues far submitting false in[ormatiav, including the P--bility of fM amt imprisonment for k--.g alau°":. SIGNA E OF PRINCIPAL EXE T OFFICER OR <br />TYPED R PRINTED AUTHORIZED AGENT AfiEw cod. NUMBER MM/DO/yyyY <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 4-5, AND <br /> 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 />f <br />EPA Form 3320.1 (Rev.01/06) Previous editions may be used. <br />Page t