2014-01-09_HYDROLOGY - C1981022 (2)

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PERMITTEE NAME /ADDRESS (Include Facility NameiLoca6onifDifferent) NAME: Oxbow Mining LLC ADDRESS: PO Box 535 Somerset, CO 81434 FACILITY: ELK CREEK MINE LOCATION: 3737 HWY 133 SOMERSET. CO 81434 ATW Mike Ludlow. Exec VP 4 NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPOES) DISCHARGE MONITORING REPORT (DMR) I i COG850064 015 -X PERMIT NUMBER DISCHARGE NUMBER MONITORING PERIOQ MM/DD/YYYY MWDD/YYYY 10/01/2013 12/31/2013 Form Approved OMB No. 2040 -0004 DMR Mailing ZIP CODE: 81434 MINOR Chronic WET Testing for 0158 External Outfall No Discharge z, NAMEITITLE PRINCIPAL EXECUTIVE OFFICER I oerbfp under penalty of law that this document and all attachments were prepared under my direction or supervision ,n accordance with a system designed to that QUANTITY OR LOADING QUALITY OR CONCENTRATION NO. FREQUENCY SAMPLE PARAMETER EX OF ANALYSIS TYPE VALUE VALUE UNITS VALUE i VALUE VALUE UNITS Toxicity [chronic], Ceriodaphnia dubi i SAMPLE •` "" '••••• •' °•• NUMBER " "•• ••••• Rpt lowest % at which statistically signif cliff between test & control using test code "S ". Rpt IC25 using test code "P ". Use test code "Tt to report highest % reported between IC25 and statistically signif dill for MEASUREMENT EPA Form 3320 -1 (Rev.01106) Previous editions may be used. 1 08/2612013 Page 1 61426 P 0 PERMIT •`• "` "••" "• "` Req. Mon. .... " "'" tox chronic Quarterly GRAB -3 See Comments REQUIREMENT SINGSAMP Toxicity [chronic], Ceriodaphnia dubi SAMPLE `• "" • "'•` •`•`•• "•`•` •••'•• MEASUREMENT 61426 S 0 PERMIT •••••` • * "" •``•" Req. Mon. ' " " "' " "" tox chronic Quarterly GRAB -3 See Comments REQUIREMENT SINGSAMP Toxicity [chronic], Pimephales SAMPLE ••`•'• " "" • *•'•• ' •` *` •••• promelas [Fathead Minnow] MEASUREMENT 61428 P 0 PERMIT •'• "' `•• "' "'•`• Req. Mon. " "" "' "•` tox chronic Quarterly GRAB -3 See Comments REQUIREMENT SINGSAMP Toxicity [chronic], Pimephales SAMPLE `•`•`• " "•^ •••••• ••••• •••••• promelas [Fathead Minnow] MEASUREMENT 61428 S 0 See Comments PERMIT REQUIREMENT `•••'• "`•'• '• "•' Req. Mon. SINGSAMP " "" "`••` tox chronic Quarterly GRAB -3 %Effect Static Renewal 7 Day Chron c SAMPLE ... '••••• •••••• •••••• •••••- Ceriodaphnia dubia MEASUREMENT TCP313 P 0 PERMIT "•`•" * *•'•• •••••• Req. Mon. •••••' "`•`•` % Quarterly GRAB -3 See Comments REQUIREMENT SINGSAMP %Effect Static Renewal 7 Day Chron c SAMPLE `•••`• •••••• •••••' -•••• •••�•• Ceriodaphnia dubia MEASUREMENT TCP3B S 0 See Comments PERMIT REQUIREMENT •'•••• `•`••' " "" Req. Mon. MN VALUE """ ^ "'•` % Quarterly GRAB -3 %Effect Static Renewal 7 Day Chron c SAMPLE •••••` •• "" ••'••• ••••• •••••• Ceriodaphnia dubia MEASUREMENT TCP3B T 0 PERMIT ` "`•` ••' "' • "••• 100 "'•" ••• "' % Quarterly GRAB -3 See Comments REQUIREMENT MN VALUE NAMEITITLE PRINCIPAL EXECUTIVE OFFICER I oerbfp under penalty of law that this document and all attachments were prepared under my direction or supervision ,n accordance with a system designed to that n A TELEPHONE DATE _ assure qualified personnel property gather and aluate the mfor.m h. subm t ed. Based on my rtpwry of the person or persons who manage the system o those persons directly responsible for gathering the information, the in submittetl s. ` to the best of my knowledge and belief true, accurate am complete. I am aware that there are -''yy�� / S N TURE OF PRINCIPAL EXECUTIVE OFFICER OR AUTHORIZED AGENT significant Penalties for submitting false informal— including the possibility of fine and - pnsonment for vowing'plations. /V - IA 7 -SY6 h 63 111/ TYPED OR PRINTED ARFA °de C NUMBER MWDgfYYYV COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) Rpt lowest % at which statistically signif cliff between test & control using test code "S ". Rpt IC25 using test code "P ". Use test code "Tt to report highest % reported between IC25 and statistically signif dill for cenodaphnia and pimephales. EPA Form 3320 -1 (Rev.01106) Previous editions may be used. 08/2612013 Page 1