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PERMITTEE NAME/ADDRESS (include Facility Nameltocallon 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) C00000132 I 019 -A PERMIT MONITORING PERIOD MWDD/YYYY MM/DD/YYYY 01/0112014 01/31/2014 Form Approved OMB No 2040 -0004 DMR Mailing ZIP CODE: 81424-0535 MINOR GUNIS SURFACE RUNOFF TO HUBBARD CRK External Outfail No Discharge io� NAMEITITLE PRINCIPAL EXECUTIVE OFFICER I candy under penalty of law that am document and an attachments were prepared under my direction or —luate the m accordance bin with a system designed an my i to assure that qualified persons personnel property gather and valuate the in /ormatron submitted Basalt on my inquiry of the person or persons wRq manage the system or those persons directly responsible for gathering the information, the information submitted s to the best of my knowledge and belief true accurate, and complete I am aware that there are significant penalties for submitting false information including the possibility of fine and imprisonment for QUANTITY OR LOADING QUALITY OR CONCENTRATION NO. FREQUENCY SAMPLE PARAMETER knowing violations EX OF ANALYSIS n(pE VALUE VALUE UNITS VALUE VALUE VALUE UNITS pH SAMPLE • »••• + « + +• ... «. + «• +• MEASUREMENT 004001 0 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 MX 7D AV 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 '• "•' ••'•" *'•••• • " »• 3000 30DA AVG 6000 DAILY MX ug /L Monthly GRAB Oil and grease SAMPLE ••'••` ••• +•• + +• +•• •.• «• ••.... MEASUREMENT 0358210 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 840661 0 Effluent Gross PERMIT REQUIREMENT •• *•» Req. Mon. INST MAX Y =1;N =0 " "" " »•• • "•» ` » »• Monthly VISUAL NAMEITITLE PRINCIPAL EXECUTIVE OFFICER I candy under penalty of law that am document and an attachments were prepared under my direction or —luate the m accordance bin with a system designed an my i to assure that qualified persons personnel property gather and valuate the in /ormatron submitted Basalt on my inquiry of the person or persons wRq manage the system or those persons directly responsible for gathering the information, the information submitted s to the best of my knowledge and belief true accurate, and complete I am aware that there are significant penalties for submitting false information including the possibility of fine and imprisonment for /f / n vl r I TELEPHONE DATE O l y 0 2/14-" / OF PRINCIPAL EXECUTIVE OFFI TYPED OR PRINTED knowing violations ./SIGNATURE AUTHORIZED AGENT a+Eacoee I NUMBER M 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 LA 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. 10/17/2013 Page 1