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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 (DMi) I 000000132 I 014-A MONITORING PERIOD MMIDD/YYYY 11/01/2013 Form Approved OMB No. 2040 -0004 DMR Mailing ZIP CODE: 81424 -055 MINOR GUNIS SURF RUNOFF TO N FK GUNNISON R External Outfall No Discha NAME111TLE PRINCIPAL EXECUTIVE OFFICER 1 -dly under penalty of low that the document and all attachments were prepared under my direction or /1 TELEPHONE DATE ` supewswn in accordance with a system deegned to assure that gwhfled personnel properly gather ano valuate the information submitted Based on my malury, of the person or persons who ma the l^ Q system, or those persons directly responsible for gathering the information, the sdormation wbmd0ed a, to the best of my knowledge aid belief, true, accurate, and complete I am awere that there ere b ec. V, sgnrficant penalties for submaag false information, including the possibility of fine and imprisonment for, NATURE OF PRI PAL EXECUTIVE OFFICER OR s8a AGENT TYPED OR PRINTED now ng; violations G AREA Cook NUMBER COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) TSS 8 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 IA.1,PP 4-5, AND I.A.2, P. 5 FOR RQMNTS.TDS MONITORING-SEE PART VIA.2.G OF RATIONALE. 30 DAY AVG. IS HIGHEST MONTHLY AVG. DURING PERIOD REPRTD. EPA Form 3320 -1 (RevA7106) Previous editions may be used. 10/17/2013 Page 1 t QUANTITY OR LOADING QUALITY R CONCENTRATION NO. FREQUENCY LE PARAMETER EX OF ANALYSIS pE VALUE VALUE UNITS VALUE V E VALUE UNITS pH SAMPLE .. " ».. '• "* » » » ». " MEASUREMENT 0040010 PERMIT •• «•' `•"' *• •'•• ** 6.5 9 SU Monthly 1NSITU Effluent Gross REQUIREMENT MINIMUM MAXIMUM Solis, total suspended SAMPLE •• " "•» ' *•"« • * "« ....k» f MEASUREMENT 0053010 PERMIT ' *' "'* ' *`• "• *• «« «• «• 70 mg /L Monthly GRAB Effl nt Gross REQUIREMENT 30D VG DAILY MX Sol' , settleable SAMPLE « «« « « *` ' * "'• « «« MEASUREMENT 005451 0 PERMIT « *••• •• «« •' «« * * " * "' Req. on. Req. Mon. mUL Monthly GRAB Effluent Gross REQUIREMENT 30D VG DAILY MX Iron, total [as Fe] SAMPLE " *••« •••'« " " «•• *•• " ** MEASUREMENT 010L 1 0 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 5000D 1 0 PERMIT Req. Mon. Req. Mon. MGD *`«« « "« • *•'« « " "* Monthly INSTAN Effluint Gross REQUIREMENT 30DA AVG DAILY MX Oil apd grease visu;I SAMPLE « «« « «•• MEASUREMENT 840661 0 PERMIT •' *•" Req. Mon. Y =1;N =0 « * "« " «" i « "« ' « «' Monthly VISUAL Effluent Gross REQUIREMENT INST MAX . I NAME111TLE PRINCIPAL EXECUTIVE OFFICER 1 -dly under penalty of low that the document and all attachments were prepared under my direction or /1 TELEPHONE DATE ` supewswn in accordance with a system deegned to assure that gwhfled personnel properly gather ano valuate the information submitted Based on my malury, of the person or persons who ma the l^ Q system, or those persons directly responsible for gathering the information, the sdormation wbmd0ed a, to the best of my knowledge aid belief, true, accurate, and complete I am awere that there ere b ec. V, sgnrficant penalties for submaag false information, including the possibility of fine and imprisonment for, NATURE OF PRI PAL EXECUTIVE OFFICER OR s8a AGENT TYPED OR PRINTED now ng; violations G AREA Cook NUMBER COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) TSS 8 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 IA.1,PP 4-5, AND I.A.2, P. 5 FOR RQMNTS.TDS MONITORING-SEE PART VIA.2.G OF RATIONALE. 30 DAY AVG. IS HIGHEST MONTHLY AVG. DURING PERIOD REPRTD. EPA Form 3320 -1 (RevA7106) Previous editions may be used. 10/17/2013 Page 1 t