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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 8t 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) C00000132 014 -A PERMIT M BER I I DISCHARGrwt MBER MONITORING PERIOD MWDD/YYYY MM/DD/YYYY 01/0 /2014 01/31/2014 Form Approved OMB No 2040 -0004 DMR Mailing ZIP CODE: 81424-0535 MINOR GUNIS SURF RUNOFF TO N FK GUNNISON R External Outfall No Discharge NAMEI ITLE PRINCIPAL EXECUTIVE OFFICER 1 certty under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel property gather and TELEPHONE DATE A �► valuate the information submitted Based an my oquiry of the person or persons who manage the rV \ t Y K 0 system or those persons directly responsible for gathering the information the mtormaboi =fitted s WV r to the heat of my knowledge and belief true accurate and complete I am aware that there are er sgnihcant penalties for submitting false information including the possibility of fire and imprsanmem to IGNATURE OF PWACIPAL EXECUTIVE OFFICER OR TYPED OR PRINTED nownng — labons AUTHORIZED AGENT AaEn code I NUMBER a_mw AM 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. IS HIGHEST MONTHLY AVG. DURING PERIOD REPRTD. EPA Form 3320 -1 (Rev.01106) 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 004001 0 PERMIT ••*"` •• "'• •'••" 6.5 '• "`• g 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 Effluent Gross PERMIT REQUIREMENT •*"`* ' „ ~'* "'*•' "•'*' Req. Mon. Req. Mon. mUL Monthly GRAB 300A 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 Effluent Gross PERMIT REQUIREMENT `• *`» • *• "• *•••" ° *•'• * * "' 10 mg /L Contingent GRAB 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 NAMEI ITLE PRINCIPAL EXECUTIVE OFFICER 1 certty under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel property gather and TELEPHONE DATE A �► valuate the information submitted Based an my oquiry of the person or persons who manage the rV \ t Y K 0 system or those persons directly responsible for gathering the information the mtormaboi =fitted s WV r to the heat of my knowledge and belief true accurate and complete I am aware that there are er sgnihcant penalties for submitting false information including the possibility of fire and imprsanmem to IGNATURE OF PWACIPAL EXECUTIVE OFFICER OR TYPED OR PRINTED nownng — labons AUTHORIZED AGENT AaEn code I NUMBER a_mw AM 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. IS HIGHEST MONTHLY AVG. DURING PERIOD REPRTD. EPA Form 3320 -1 (Rev.01106) Previous editions may be used. 10/17/2013 Page 1