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PERMITTEE NAME/ADDRESS (Include Facility Name/Location if Different) NAME: Oxbow Mining LLC ADDRESS: PO Box 535 Somerset, CO 81434 -0535 FACILITY: SANBORN CRK & ELK CRK MINES LOCATION: 3737 HIGHWAY 133 SOMERSET, CO 81434 ATTN. Mike Ludlow Exec VP NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) DISCHARGE MONITORING REPORT (DMR) 000000132 017 -A PERMIT NUMBER DISCHARGE NUM ER MONITORING PERIOD MM /DD/YYYY MM /DD/YYYY 10/01/2014 10/31/2014 Form Approved OMB No. 2040 -0004 DMR Mailing ZIP CODE: 81424 -0535 MINOR GUNIS SURF RUNOFF TO N. FK GUNIS RIV External Outfall No Discharge NAME/TITLE PRINCIPAL EXECUTIVE OFFICER 1 certdy under penalty of law that the document and all attachments were prepared under my direction or TELEPHONE DATE supemsron in accordance bmi a system designed my i to assure that person r personnel properly gather and aluate the mformabon submitted Based on my inquiry of the person or persons who manage the W\OCT 0 L{„� system or those persons directly responsible for gathering the information, the information submitted s to the beat of my knovAedge and belief true, accurate, and complete I am aware that mere are �O sgnonvdncrg a nvt iopleanbaolntia esforsubmdbngfalseinformationmdudmmepossibAAyoffineandimprsonment for IGNATUREOFPRINCIPAL EXECUTIVE OFFICER OR ,,QZQ _ 066 fl O L0� TYPED OR PRINTED AUTHORIZED AGENT AREACode I NUMBER MMtdDMW COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) TSS & TOTAL IRON LIMITS WILL BE WAIVED, AND SETTLEABLE SOLIDS LMT APPLIES FOR <= 10YR,24HR PRECIP EVENT;SETTLEABLE SOLIDS LIMIT MAY BE WAIVED FOR >10YR,24HR EVERT -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 EPA Form 3320 -1 (Rev.01 106) Previous editions may be used. 10/17/2013 Page 1 QUANTITY OR LOADING QUALITY OR CONCENTRATION NO. FREQUENCY SAMPLE PARAMETER EX OF ANALYSIS TYPE VALUE VALUE UNITS VALUE VALUE VALUE UNITS pH SAMPLE *....+ .... ". ...... *..... MEASUREMENT 0040010 PERMIT • »'•'* " ""•" " "•• "• 6.5 "' " * "' 9 SU Monthly INSITU Effluent Gross REQUIREMENT MINIMUM MAXIMUM Solids, total suspended SAMPLE * *`• ** •••••* *' * *'* * * " *` MEASUREMENT 0053010 PERMIT • "• *•* * * * * ** * « * * ** « * «• ** 35 70 mg /L Monthly GRAB Effluent Gross REQUIREMENT 30DA AVG DAILY MX Solids, settleable SAMPLE * * *'•' • * *' ** " * " * ** *•••«• MEASUREMENT 005451 0 PERMIT " **• ** •'• "• **•**• * * *' "• Req. Mon. Req. Mon. mUL Monthly GRAB Effluent Gross REQUIREMENT 30DA AVG DAILY MX Iron, total [as Fe] SAMPLE • "'•' "' "'• * « "" " " * * *« MEASUREMENT 0104510 PERMIT " * * "*" * * * * ** •'•••* *••'•' 3000 6000 ug /L Monthly GRAB Effluent Gross REQUIREMENT 30DA AVG DAILY MX Oil and grease SAMPLE • * * *•* " * * ** ` * " "• "** * *" ' * * * ** MEASUREMENT 0358210 PERMIT • * * *** * * « * «* * « * * ** * * * " ** * *••'• 10 mg /L Contingent GRAB Effluent Gross REQUIREMENT INST MAX Flow, In conduit or thru treatment plat SAMPLE * *• *`* ` "• *** " "" * * *' *` MEASUREMENT 500501 0 PERMIT Req. Mon. Req. Mon. MGD *'" * ** "' * «'" *•' *•' `• «*"* Monthly INSTAN Effluent Gross REQUIREMENT 30DA AVG DAILY MX Oil and grease visual SAMPLE •**`•* * *• *�. . « «... *..... .. «. MEASUREMENT 840661 0 PERMIT * * " *`* Req. Mon. Y =1;N =0 "' *' "* «*»*** • * "'*" " * " *" Monthly VISUAL Effluent Gross REQUIREMENT INST MAX NAME/TITLE PRINCIPAL EXECUTIVE OFFICER 1 certdy under penalty of law that the document and all attachments were prepared under my direction or TELEPHONE DATE supemsron in accordance bmi a system designed my i to assure that person r personnel properly gather and aluate the mformabon submitted Based on my inquiry of the person or persons who manage the W\OCT 0 L{„� system or those persons directly responsible for gathering the information, the information submitted s to the beat of my knovAedge and belief true, accurate, and complete I am aware that mere are �O sgnonvdncrg a nvt iopleanbaolntia esforsubmdbngfalseinformationmdudmmepossibAAyoffineandimprsonment for IGNATUREOFPRINCIPAL EXECUTIVE OFFICER OR ,,QZQ _ 066 fl O L0� TYPED OR PRINTED AUTHORIZED AGENT AREACode I NUMBER MMtdDMW COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) TSS & TOTAL IRON LIMITS WILL BE WAIVED, AND SETTLEABLE SOLIDS LMT APPLIES FOR <= 10YR,24HR PRECIP EVENT;SETTLEABLE SOLIDS LIMIT MAY BE WAIVED FOR >10YR,24HR EVERT -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 EPA Form 3320 -1 (Rev.01 106) Previous editions may be used. 10/17/2013 Page 1