2014-01-09_HYDROLOGY - C1981022 (2)

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PERMITTEE NAME /ADDRESS (Include Facility Name/Location if Different) NAME: Oxbow Mining LLC ADDRESS: PO Box 535 Somerset, CO 81434 FACILITY: ELK CREEK MINE LOCATION: 3737 HWY 133 SOMERSET, CO 81434 ATTN: Mike Ludlow. Exec VP NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) DISCHARGE MONITORING REPORT (DMR) COG850064 015 -X PERMIT NUMBER DISCHAR E NUMBER MONITORING PERIOD MWDD/YYYY MWDD/YYYY 10/01/2013 12/31/2013 i Form Approved OMB No. 2040 -0004 DMR Mailing ZIP CODE: 81434 MINOR Chronic WET Testing for 015B External Outfall No Discharge NAME /TITLE PRINCIPAL EXECUTIVE OFFICER 1 certify under peharcy of law that this document and an attachments were prepared under my mreobon or TELEPHONE DATE super sic, n accordance with a system designed to assure that qualified personnel properly gamer and I% 0 valuate the nformdtgn Submitted Based On my inquiry of the person or pera0ns who ma,age the f y} Csystem. o, arose persons d rectly responsible for gather ng the ,formation. the ,format on subm Rted is �-e (./ - ,�''Yt" `•- -it f " (� to the nest of my knowledge and bet ef. true accurate. and complete. I am aware that there are y S h sg,° cantpehathes for submitting false information ncludn gthe possdllyof fine and impnsomnentlo' 7 SIGNATURE OF NCIPAL EXECUTIVE OFFICER OR ownq,.olauons AUTHORIZED AGENT NUMBER MM/DDIYYYY TYPED OR PRINTED data code COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) Rpt lowest % at which statistically signif diff between test & control using test code "S ". Rpt IC25 using test code "P ". Use test code 'T' to report highest % reported between IC25 and statistically signif diff for ceriodaphnia and pimephales. EPA Form 3320.1 (Rev.01106) Previous editions may be used. 08/26/2013 Page 2 QUANTITY OR LOADING QUALITY OR CONCENTRATION NO. FREQUENCY SAMPLE PARAMETER EX OF ANALYSIS TYPE VALUE VALUE UNITS VALUE VALUE VALUE UNITS %Effect Statre 7Day Chronic SAMPLE •••••• •' "•'" ' "'•'" •••••• •••••• Pimephales MEASUREMENT TCP6C P 0 PERMIT • " "'" „•••• ... Req. Mon. " "" ... % Quarterly GRAB-3 See Comments REQUIREMENT SINGSAMP %Effect Statre 7Day Chronic SAMPLE ' "' "'" ` " "' "" ••"••• ` " "'•' "•• " "• Pimephales MEASUREMENT TCP6C S 0 PERMIT ••'••• '• "" " "'• Req. Mon. • " "' " "" % Quarterly GRAB -3 See Comments REQUIREMENT MN VALUE %Effect Statre 7Day Chronic SAMPLE •'•'•• "' " "" ' " " " "" •-•••• " " " " "" Pimephales MEASUREMENT TCP6C T 0 PERMIT •• " "' ' " "' "" "• "" 100 " "" ' " " "' °h —r Quarterly GRAB -3 See Comments REQUIREMENT MN VALUE , I NAME /TITLE PRINCIPAL EXECUTIVE OFFICER 1 certify under peharcy of law that this document and an attachments were prepared under my mreobon or TELEPHONE DATE super sic, n accordance with a system designed to assure that qualified personnel properly gamer and I% 0 valuate the nformdtgn Submitted Based On my inquiry of the person or pera0ns who ma,age the f y} Csystem. o, arose persons d rectly responsible for gather ng the ,formation. the ,format on subm Rted is �-e (./ - ,�''Yt" `•- -it f " (� to the nest of my knowledge and bet ef. true accurate. and complete. I am aware that there are y S h sg,° cantpehathes for submitting false information ncludn gthe possdllyof fine and impnsomnentlo' 7 SIGNATURE OF NCIPAL EXECUTIVE OFFICER OR ownq,.olauons AUTHORIZED AGENT NUMBER MM/DDIYYYY TYPED OR PRINTED data code COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) Rpt lowest % at which statistically signif diff between test & control using test code "S ". Rpt IC25 using test code "P ". Use test code 'T' to report highest % reported between IC25 and statistically signif diff for ceriodaphnia and pimephales. EPA Form 3320.1 (Rev.01106) Previous editions may be used. 08/26/2013 Page 2