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NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) <br />DISCHARGE MONITORING REPORT (DMR) <br />Form Approved + <br />OMB No. 2D40-0004 <br />PERM ITTEE NAMEIADDRESS (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 />000000132 019-A <br />PERMIT NUMBER DISCHARGE NUMBER <br />MONITORING PERIOD <br />MM/DD/YYYY MM/DD/YYYY <br />FROM 08/01/2010 TO 08/31!2010 <br />PARAMETER QUANTITY OR LOADING QUALITY OR CONCENTRATION <br /> VALUE VALUE UNITS VALUE VALUE VALUE <br />pH SAMPLE ...... <br /> MEASUREMENT <br />0040010 <br /> <br />Effluent Gross PERMIT """ •••"' <br />•f«~- <br />+«-•? <br /> REQUIREMENT MINIMUM MAXIMUM <br />Solids, total suspended SAMPLE ,,,,- <br /> MEASUREMENT ««« "`•" ""'" <br />0053010 PER """ """' •"" <br />Effluent Gross MIT <br />REQUIREMENT 30DA AVG MX 7D AV <br />Solids, settleable SAMPLE <br /> MEASUREMENT <br />005451 0 <br /> <br />Effluent Gross PERMIT •,,,,a ""•• •--••' ••-' <br />Req. Mon. <br />Req. Mon. <br /> REQUIREMENT 30DA AVG DAILY MX <br />Iron, total (as Fe) SAMPLE <br /> MEASUREMENT <br />0104510 <br /> <br />Effluent Gross PERMIT ""„ """ ""•" <br /> <br />-f« <br />3000 <br />6000 <br /> REQUIREMENT 30DA AVG DAILY MX <br />Oil and grease SAMPLE <br /> MEASUREMENT <br />0358210 <br /> PERMIT ",,,. ,,,• <br />•`•«- <br />`?••*+ <br />-ef *• <br />Effluent Gross REQUIREMENT INST MAX 10 <br />Flow, in conduit or thru treatment plant SAMPLE <br /> MEASUREMENT """ ""`• •-'•" <br />50050 1 0 <br /> <br />Effluent Gross PERMIT Req. Mon. Req. Mon. Mgalld ••-•" ------ <br /> REQUIREMENT 30DA AVG DAILY MX <br />Oil and grease visual SAMPLE <br /> <br />MEASUREMENT „w <br />"`"" <br />•°,-- <br />84066 1 0 <br />Effluent Gross PERMIT •"" Req. Mon. Y=1;N=0 •""' •••--- ...... <br /> REQUIREMENT INST MAX <br />DMR Mailing ZIP CODE: 81424-0535 <br />MINOR <br />GUNIS <br />SURFACE RUNOFF TO HUBBARD CRK <br />External Outfall <br />No Discharge <br />NO. FREQUENCY SAMPLE <br />EX OF ANALYSIS TYPE <br />UNITS <br />SU <br /> Monthly INSITU <br /> <br /> <br /> <br />mg/L <br /> Monthly GRAB <br /> <br /> <br /> <br />mL/L <br /> Monthly GRAB <br /> <br /> <br /> <br />ug/L <br /> Monthly GRAB <br /> <br /> <br />mg/L <br /> Contingent GRAB <br /> <br /> <br />«• Monthly INSTAN <br /> <br /> <br /> <br />I Monthly VISUAL <br />W i ifn i Lt PRINCIPAL EXECUTIVE OFFICER . p- d nr ,. wr rm: a«n n?nr,nd.n,narbn nnn w pn d.nde. my a m on n <br />C J?u inn in a era ?u with a sy-m d:T;.d a az mu q?crm a onn?i pp M 1Y g mrr -d <br />TELEPHONE DATE <br />evaluate the infurmaton submined. Baca an my inquiry of the pcrwv w persons aaw mavage th< •?/ <br />• system, or tame persons dircaty responsible for geshering uK infamuto4 she intosmaton submissed is. <br />L ??, so the best army knowledge end bchcf, mu, accunse, and.ibiji sc. ! am aware them tae are significam 7e 9 2 Q ' SI ZZ Of -,0 7 <br />lasions(or submming take inf rmwiun, including i6e possibility of f and impriwnmrnt fur hawing <br />13 RINTED n SIGNA E OF PRINCIPAL EXECUTI OFFICER OR <br />TYPED OR <br />AUTHORIZED AGENT •Rewcod. NUMBER MM/oo/YYYY <br />COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) <br />TSS 8 TOTAL IRON LIMITS WILL BE WAIVED, AND SETTLEABLE SOLIDS LMT APPLIED FOR -10,24HR PRECIP EVENT;SETTLEABLE SOLIDS LIMIT MAY BE WAIVED FOR >10YR.24HR EVENT-SEE I.A.1,PP 4-5, AND I.A.2, <br /> P 5 FOR <br />RQMNTS.TDS MONITORING-SEE PART VI.A.2.G OF RATIONALE. 30 DAY AVG IS HIGHEST MONTHLY AVG DURING REPORTING PERIOD. <br />EPA Form 3320-1 (Rev.01106) Previous editions may be used. <br />Page 1 <br />