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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/LocahonifDifferent) <br />NAME: Oxbow Mining LLC C00000132 016 -A DMR Mailing ZIP CODE: 81424 -0535 <br />ADDRESS: PO Box 535 PERMIT NUMBER DISCHAR NUMBER MINOR <br />Somerset, CO 81434 -0535 GUNIS <br />FACILITY: SANBORN CRK & ELK CRK MINES MONITORING PERIOD SURFACE RUNOFF TO ELK CREEK <br />LOCATION: 3737 HIGHWAY 133 MMUDD/YYYY MWDD/YYYY Extemal Outfall <br />SOMERSET, CO 81434 04/01/2014 04/30/2014 No Discharge <br />ATTN' Mike Ludlow Exec VP <br />PARAMETER <br />QUANTITY OR LOADING QUALITY OR CONCENTRATION NO, FREQUENCY SAMPLE <br />VALUE VALUE UNITS VALUE VALUE VALUE UNITS EX OF ANALYSIS TYPE <br />pH SAMPLE • »..f• ._.... ••. » ». <br />MEASUREMENT <br />004001 0 PERMIT "' *'• * "'•' • « *`•* g 5 9 SU Monthly INSITU <br />•• »••� <br />Effluent Gross REQUIREMENT UM MAXIMUM MINIM <br />Solids, total suspended SAMPLE •'•••• * *_.•_ ._._•• MINIMUM <br />MEASUREMENT <br />0053010 PERMIT •• « « *• «•••'• •• *••• • *•• <br />E 35 70 mg /L Monthly GRAB <br />Effluent Gross REQUIREMENT <br />Solids, settleable SAMPLE 30DA AVG DAILY MX <br />•• + * *• »_•.�• •. :... <br />MEASUREMENT <br />005451 0 PERMIT * * * * *• .• =f•f <br />Effluent Gross REQUIREMENT "' "• Req. Mon. Req. Mon. mUL Monthly GRAB <br />Iron, total as Fe *, ".," 30DA AVG DAILY MX <br />I ] SAMPLE • * *•_• •f »••• <br />MEASUREMENT <br />0104510 PERMIT ' *• * ** •••: <br />Effluent Gross REQUIREMENT •' •• * *•• ••kf• 30DA AVG DAILY MX ug /L Monthly GRAB 3000 6000 <br />Oil and grease SAMPLE * *•••• •. »•._ .• *.•_ ,,,,•, <br />MEASUREMENT « *•..' <br />0358210 PERMIT •••• «• +•.•.» »• =f », =f » „* <br />Effluent Gross REQUIREMENT 10 mg /L Contingent GRAB <br />Flow, in conduit or thru treatment plat SAMPLE f•��f• INST MAX <br />MEASUREMENT ” » " "• • <br />500501 0 PERMIT Req. Mon. Req. Mon. MGD <br />Effluent Gross REQUIREMENT 30DA AVG DAILY MX """ f »• »f» •,: f1f.f. Monthly INSTAN <br />Oil and grease visual SAMPLE •••• *• ,,, * *� •�,Rfy �•• *+ ••• «• <br />MEASUREMENT <br />840661 0 PERMIT « " "• Req. Mon. Y =1;N =0 " "••• ,.,, *. <br />Effluent Gross REQUIREMENT INST MAX f•� =f » »;��� Monthly VISUAL <br />NAMEITITLE PRINCIPAL EXECUTIVE OFFICER 1 cerhfy under penalty of low that thin document and all attachments were prepared under my dvecbon or <br />supervson m accordance with a system designed to assure that quell personnel properly gather and A TELEPHONE DATE <br />\ aluate the information nubmAted Based an my inquiry of ne person or persons who manage the / <br />(It system, or those persons dsecw reepomoe for gathering the information, the information submitted <br />to the beet of my knowledge and belief, true accurate, and complete I am aware that there are �—p L <br />I �S significant penalties for submitting False information, mcWanp the possibility of fi s and imp sonmeM SIGNATURE OF NCIPAL EXECUTIVE OFFICER OR �' J OQ v <br />TYPED OR PRINTED noven° wombo s AUTHORIZED AGENT <br />ARF1't:ow NUMBER D <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 < 10YR,24 HR PRECIP EVENT;SETTLEABLE SOLIDS LIMITS MAY BE WAIVED FOR >10YR,24HR <br />EVENT -SEE I.A.1, PP 4 -5, AND I.A.2., P. 5 FOR RQMNTS. 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.01106) Previous editions may be used. <br />10/17/2013 Page 1 <br />