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PERMITTEE NAME/ADDRESS (Include Facility Name/Locabon 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 019 -A PERMIT NU DISCHARGE NUM 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 SURFACE RUNOFF TO HUBBARD CRK External Outfall No Discharge NAMEITITLE PRINCIPAL EXECUTIVE OFFICER I certify under penalty of law that this document and all attachments were prepared under my direction or TELEPHONE MDATTE upervision in accordance. a system designed to assure that qualified personnel properly gather and IM.— �' //, .- n r aluste the mbrmation submitted Based on my Inquiry of the person or persons who manage the rI �r '/l` rV t (J� system or those persons directly responsible for gathering the Information, the information submitted is to the best of my knowledge and belief true, accurate, and complete I am aware that there are sgnlflcantpenayiesforsubmrtingfalseinformationinGWingthepossibilityoffineardimprionmentfor SIGNATUREOFP CIPALEXECUTIVEOFFICEROR / ^!V TYPED OR PRINTED nowmg violations AUTHORIZED AGENT AREA Code NUMBER COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) TSS & 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, P 5 FOR RQMNTS.TDS MONITORING -SEE PART VI.A.2.G OF RATIONALE. 30 DAY AVG IS HIGHEST MONTHLY AVG DURING REPORTING PERIOD. EPA Form 3320 -1 (Rev.01106) Previous editions may be used. 10/1712013 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 004001 0 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 MX 7D AV Solids, settleable SAMPLE * *•• ** •` * *•• *• « « ** • * * * ** MEASUREMENT 005451 0 Effluent Gross PERMIT REQUIREMENT * * * * "« * * * « ** * * "**" •*•""" Req. Mon. 30DA AVG Req. Mon. DAILY MX mUL Monthly GRAB Iron, total (as Fej 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, to conduit or thru treatment plat SAMPLE ••• -•• • *• * *« *• * * ** * « *• ** MEASUREMENT 5005010 PERMIT Req. Mon. Req. Mon. MGD * * *` ** * *"* ' *• "" * * * * ** Monthly INSTAN Effluent Gross REQUIREMENT 30DA AVG DAILY MX Oil and grease visual SAMPLE * * * * *" ••• *•• *•• * *• ** " * ** " * * * *• MEASUREMENT 8406610 PERMIT •* * *`* Req. Mon. Y =1;N =0 * * * * *" '*"•' «•• "* " * * * *" Monthly VISUAL Effluent Gross REQUIREMENT INST MAX NAMEITITLE PRINCIPAL EXECUTIVE OFFICER I certify under penalty of law that this document and all attachments were prepared under my direction or TELEPHONE MDATTE upervision in accordance. a system designed to assure that qualified personnel properly gather and IM.— �' //, .- n r aluste the mbrmation submitted Based on my Inquiry of the person or persons who manage the rI �r '/l` rV t (J� system or those persons directly responsible for gathering the Information, the information submitted is to the best of my knowledge and belief true, accurate, and complete I am aware that there are sgnlflcantpenayiesforsubmrtingfalseinformationinGWingthepossibilityoffineardimprionmentfor SIGNATUREOFP CIPALEXECUTIVEOFFICEROR / ^!V TYPED OR PRINTED nowmg violations AUTHORIZED AGENT AREA Code NUMBER COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) TSS & 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, P 5 FOR RQMNTS.TDS MONITORING -SEE PART VI.A.2.G OF RATIONALE. 30 DAY AVG IS HIGHEST MONTHLY AVG DURING REPORTING PERIOD. EPA Form 3320 -1 (Rev.01106) Previous editions may be used. 10/1712013 Page 1