2015-07-30_HYDROLOGY - C2009087 (2)

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PERMITTEE NAME/ADDRESS (Include Facfllty Name/Location If Different) NAME: Peabody Sage Creek Mining LLC ADDRESS: PO Box 205 Hayden, CO 81639-0250 FACILITY: SAGE CREEK MINE COMPLEX LOCATION: 36600 CR 27 HAYDEN, CO 81639 ATTN: Edwin J. Brady, Mine Mgr NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) DISCHARGE MONITORING REPORT (DMR) C00048275 WTA-X DICHARGE NUMBER MONITORING PERIOD MM/DD/YYYY MM/DD/YYYY 04/01/2015 06/30/2015 Form Approved OMB No 2040-0004 DMR Mailing ZIP CODE: 86001 MAJOR Chronic WET Testing for 002A/003A External Outfall No Discharge NAMEITITLE PRINCIPAL EXECUTIVE OFFICER I cerbfy 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 properly gather and valuate the mlonnabon submitted Based on my mquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information the information submitted is to the best of my knowledge and belief, true, accurate, and complete I am aware that there are signifcanl pelaltiesforsuhmdhngfalseinformation,includingthepossibihtyoffneandimpnson—t I., knowing QUANTITY OR LOADING QUALITY OR CONCENTRATION NO. FREQUENCY SAMPLE PARAMETER SIGNATURE OFPRINC AL EXECUTIVEOFFICEROR AUT ORIZED AGENT EX OF ANALYSIS TYPE VALUE VALUE UNITS VALUE VALUE VALUE UNITS Toxicity [chronic], Cenodaphnia dubia SAMPLE MEASUREMENT % U �/.0 61426 P 0 PERMIT ****** *****` **"`* Req. Mon. ****" ****'* to chronic Qu erly GRAB See Comments REQUIREMENT SINGSAMP Toxicity [chronic], Cenodaphnia dubia SAMPLE MEASUREMENT 61426 S 1 PERMIT ****** `*`*`* '**`** Req. Mon. """ *""* tox chronic Qua erly G B See Comments REQUIREMENT SINGSAMP Toxicity [chronic], Pimephales promelas [Fathead Minnow] SAMPLE MEASUREMENT 61428 P 0 PERMIT *"*"* ****** """ Req Mon. ****" ****" tox chronic Qu rterly G AB See Comments REQUIREMENT SINGSAMP Toxicity [chronic], Pimephales promelas [Fathead Minnow] SAMPLE MEASUREMENT >1co 61428 S 0 PERMIT ****** ****** **`*** Req. Mon. *`"*" "'*" tox chronic Q jarterly GR B See Comments REQUIREMENT SINGSAMP %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia SAMPLE MEASUREMENT "'"*** *"**** ""**" [(DO "*"*' "'*" 0 /0 TCP3B P 0 PERMIT '"**"* "**** "`*** Req. Mon ""*' """ % C jarterly G AB See Comments REQUIREMENT SINGSAMP %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia SAMPLE MEASUREMENT > �f TCP3B S 0 PERMIT *`*`*` ****** `"**** Req. Mon. *****` """ % Q arterly RAB See Comments REQUIREMENT MN VALUE %Effect Static Renewal 7 Day Chronic Cenodaphnia dubia SAMPLE MEASUREMENT > (QO TCP3B T 0 PERMIT ****** ****" **"" 100 """" "*`** % Quarterly GRAB See Comments REQUIREMENT MN VALUE NAMEITITLE PRINCIPAL EXECUTIVE OFFICER I cerbfy 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 properly gather and valuate the mlonnabon submitted Based on my mquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information the information submitted is to the best of my knowledge and belief, true, accurate, and complete I am aware that there are signifcanl pelaltiesforsuhmdhngfalseinformation,includingthepossibihtyoffneandimpnson—t I., knowing TELEPHONE DATE �� 1 C J Cc-'ns"iA�c�� �I� H� c�s�� T �iS SIGNATURE OFPRINC AL EXECUTIVEOFFICEROR AUT ORIZED AGENT TYPED OR PRINTED AREA Code NUMBER MM/DD/YYYY COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) See LA 4 for details of test procedure Rpt results of lethality derivs as "% effect', growth&reprod derivs as "toxicity" Rpt lowest % at which statistically signif diff btwn test&cont using "S" Rpt IC25 using "P" Use 'T" to report highest e/ reported btwn "P" and "S" for cenodaphnia and pimephales EPA Form 3320-1 (Rev 01/06) Previous editions may be used. 01/07/2015 Page 1