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PERMITTEE NAME/ADDRESS (Include Facility NameiLocation ff LWerent) 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 009 -A PERMIT DISCHARGE NUMBE;� MONITORING PERIOD MWDD/YYYY MM/DD/YYYY 01101/2014 01/31/2014 Form Approved OMB No 2040-0004 DMR Mailing ZIP CODE: 81424-0535 MINOR GUNIS SURF RUNOFF TO N FK GUNIS RIVR External Outfall No Discharge NAMERITLE PRINCIPAL EXECUTIVE OFFICER 1 comfy under penalty of 1—that this document and all attachments were prepared under my direction or TELEPHONE DATE supervision in accordance wim a system designed to assure flat qualified personnel properly gather aril �/ A' It' aaluate the mformaoon submitted Based on my inquiry of the person or persona who manage the t • Y , r C y P system or those persons directly responsible for gathereg the mformatan, the information submitted to the best of my knowledge and belief true accurate and complete I am aware that there are �Qzp_0 / t / l sgnihcam penalties for submRhng fake information including the possmilty of fine and impnsonment f SIGNATURE OF PRINCIPAL EXECUTIVE OFFICER OR 7 / b fir nowng wolabons TYPED OR PRINTED THORZED AGENT naEn cos. NUMBER M D/YYYY COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) 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 I.A.1,PP 4-5, AND I.A.2, P. 5 FOR RQMNTS.TDS MONITORING -SEE PART VIA.2.G OF RATIONALE. 30 DAY AVG. IF HIGHEST MONTHLY AVG. DURING PERIOD REPRTD. EPA Form 3320 -1 (Rev.01 /06) 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 Effluent Gross PERMIT REQUIREMENT "• "• '••'•• •••`•' 6.5 MINIMUM '•• "• 9 MAXIMUM SU Monthly INSITU Solids, total suspended SAMPLE • ~ "` • -••" ••••`_ „-••. MEASUREMENT 0053010 Effluent Gross PERMIT REQUIREMENT ~ * "' ' ~ ~• "••« •'• ~• 35 30DA AVG 70 DAILY MX mg /L Monthly GRAB Solids, settleable SAMPLE • ~`•• ••• ~` •_ :`•• • ~•.• MEASUREMENT 005451 0 Effluent Gross PERMIT REQUIREMENT « «~ "'•" •""• ' «'•' Req. Mon. 30DA AVG Req. Mon. DAILY MX mUL Monthly GRAB Iron, total [as Fe) SAMPLE ••••'• •••••• "•`•• ... „, MEASUREMENT 0104510 Effluent Gross PERMIT REQUIREMENT «• "' ' "'•« ""'• " "'• 3500 30DA AVG 7000 DAILY MX ug /L Monthly GRAB Oil and grease SAMPLE '•'•" •••••• ••• «• ...... .. „„ MEASUREMENT 035821 0 Effluent Gross PERMIT REQUIREMENT «• "_ ' «•„ ' „ ~• '••_ ' • « «` 10 INST MAX mg /L Contingent GRAB Flow, in conduit or thru treatment plat SAMPLE ...... , „... „.... ...... MEASUREMENT 500501 0 Effluent Gross PERMIT REQUIREMENT Req. Mon. 30DA AVG Req. Mon. DAILY MX MGD ” " "` " «'” „ „•• ••• «' Monthly INSTAN Oil and grease visual SAMPLE • " «` . „._. „ „„ „ „.. „„.. MEASUREMENT 8406610 Effluent Gross PERMIT REQUIREMENT ~• «` Req. Mon. INST MAX Y =1;N =0 ... „• .„.„ .. „„ . „ „, Monthly VISUAL NAMERITLE PRINCIPAL EXECUTIVE OFFICER 1 comfy under penalty of 1—that this document and all attachments were prepared under my direction or TELEPHONE DATE supervision in accordance wim a system designed to assure flat qualified personnel properly gather aril �/ A' It' aaluate the mformaoon submitted Based on my inquiry of the person or persona who manage the t • Y , r C y P system or those persons directly responsible for gathereg the mformatan, the information submitted to the best of my knowledge and belief true accurate and complete I am aware that there are �Qzp_0 / t / l sgnihcam penalties for submRhng fake information including the possmilty of fine and impnsonment f SIGNATURE OF PRINCIPAL EXECUTIVE OFFICER OR 7 / b fir nowng wolabons TYPED OR PRINTED THORZED AGENT naEn cos. NUMBER M D/YYYY COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) 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 I.A.1,PP 4-5, AND I.A.2, P. 5 FOR RQMNTS.TDS MONITORING -SEE PART VIA.2.G OF RATIONALE. 30 DAY AVG. IF HIGHEST MONTHLY AVG. DURING PERIOD REPRTD. EPA Form 3320 -1 (Rev.01 /06) Previous editions may be used. 10/17/2013 Page 1