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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 009 -A PERMIT UMBER DISCHARGE NUMBER MONITORING PERIOD MM /DD/YYYY MM /DD/YYYY 11/01/2014 11/30/2014 Form Approved OMB No. 2040 -0004 DMR Mai ing ZIP CODE: 81424 -0535 MINOR GUNIS SURF R NOFF TO N FK GUNIS RIVR External Outfall No Discharge rp NAME /TITLE PRINCIPAL EXECUTIVE OFFICER I certify under penalty of law that this document and all attachments were prepared undermydirectionor supervision in accordance with a system designed to assure that qualified personnel proper QUANTITY OR LOADING QUALITY OR CONCENTRATION TELEPHONE DATE NO. FREQUENCY SAMPLE PARAMETER EX OF ANALYSIS TYPE VALUE VALUE UNITS VALUE VALUE VALUE UNI S pHSAMPLE NUMBER I MMIDDfM ...... ...... ...... .....* MEASUREMENT 0040010 PERMIT "• "• "`• *` * "'••` 6.5 * "' ** 9 Sli Monthly INSITU Effluent Gross REQUIREMENT MINIMUM MAXIMUM Solids, total suspended SAMPLE "` "`" "' ~ "" . "` "" ' " "`• MEASUREMENT 0053010 PERMIT "' * ~` * "•" " « " ** ' * "'* 35 70 m L Monthly GRAB Effluent Gross REQUIREMENT 30DA AVG DAILY MX Solids, settleable SAMPLE " " *` • "• «' `• " *' `• *'•• MEASUREMENT 00545 1 0 PERMIT ~ "' *' " " "' * * *• ** '• " *` Req. Mon. Req. Mon. m L Monthly GRAB Effluent Gross REQUIREMENT 30DA AVG DAILY MX Iron, total [as Fe] SAMPLE '• ~ *" " "` "'" " "•' ** ` ~•• ~• MEASUREMENT 010451 0 PERMIT *• *• «` *` *` ** " *' ~' " "'" 3500 7000 ug IL Monthly GRAB Effluent Gross REQUIREMENT 30DA AVG DAILY MX Oil and grease SAMPLE ` "`••` " " ~• " "'* " ~ "" " "" MEASUREMENT 035821 0 PERMIT *• * * *` `•`••* « * « * «* « * " « *` •• " *• 10 m /L Contingent GRAB Effluent Gross REQUIREMENT INST MAX Flow, in conduit or thru treatment plat SAMPLE "'•`* ' * "" '• " "' " MEASUREMENT 50050 1 0 PERMIT Req. Mon. Req. Mon. MGD " "" " * " *' * " " "" Monthly INSTAN Effluent Gross REQUIREMENT 30DA AVG DAILY MX Oil and grease visual SAMPLE `•`•" ' * "'• ` "` ** * "` ** ~ MEASUREMENT 84066 1 0 PERMIT " "" Req. Mon. Y =1;N =0 "• " "" "' *" " "" " "` "' Monthly VISUAL Effluent Gross REQUIREMENT INST MAX NAME /TITLE PRINCIPAL EXECUTIVE OFFICER I certify under penalty of law that this document and all attachments were prepared undermydirectionor supervision in accordance with a system designed to assure that qualified personnel proper TELEPHONE DATE valuate the information submitted. Based an my inquiry of the person or persons who man e the system. or those persons directly responsible for gathering the information, the information ! the rs. "f 0 / t to the best of my knowledge and belief, true, accurate, and complete. 1 am aware that there are a q 7 d - 4z S `?V O a d Ytv7 SIGNATUREO PRINCIPAL EXECUTIVE OFFICEROR AUTHORIZED AGENT U� re "'V sgnificantpenatliesforsubirrifalseinformation. includingtheposubilrtyoffineandimprisonmenttor noveng violations. / TYPED OR PRINTED .R -c o-e NUMBER I MMIDDfM 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 B 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. IF HIGHEST MONTHLY AVG. DUR NG PERIOD REPRTD. EPA Form 3320 -1 (Rev.01 /06) Previous editions may be used. 1 10/17/2013 Page 1