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PERMITTEE NAME/ADDRESS (Include Facility Name/Location ff Different) NAME: Seneca Coal Co LLC ADDRESS: PO Box 670 Hayden, CO 81639-0670 FACILITY: SENECA MINE COMPLEX LOCATION: 37766 RCR 53 HAYDEN. CO 81639 ATTN- Scott Cowman/Sr Env Specialist NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) DISCHARGE MONITORING REPORT (DMR) C00000221 I MNO-5 PERMIT NUMBER I I DISCHARGE NUMBER MONITORING PERIOD MM/DD/YYYY MM/DD/YYYY 07/01/2015 09/30/2015 Form Approved OMB No 2040-0004 DMR Mailing ZIP CODE: 81639 MAJOR ROUTT DSCHG TO TRIB/DRY CREEK External Outfall No Discharge El NAMEITITLE PRINCIPAL EXECUTIVE OFFICER 1 certify under penalty of law that this document and all attachment: were prepared under my direction or QUANTITY OR LOADING QUALITY OR CONCENTRATION NO. FREQUENCY SAMPLE PARAMETER EX OF ANALYSIS TYPE VALUE VALUE UNITS VALUE VALUE VALUE UNITS Zinc, potentially dissolved SAMPLE MEASUREMENT < f�j < 16 013031 0 PERMIT ****** ***«** *****« ««**** Req. Mon. Req. Mon. ug/L Quarterly GRAB Effluent Gross REQUIREMENT 30DA AVG DAILY MX Silver, potentially dissolved SAMPLE MEASUREMENT `***«« *"'**' '*'_** *"*~"* /-�' Gry a _ < a (5� 6J� )!(. � G i/ /C.) viy1� 013041 0 PERMIT ****** **"'« *««`*« '«'*'* Req. Mon. Req. Mon. ug/L Quarterly GRAB Effluent Gross REQUIREMENT 30DA AVG DAILY MX Copper, potentially dissolved SAMPLE MEASUREMENT 013061 0 PERMIT *««*'* '*""*" «*«"' `***** Req. Mon. Req. Mon. ug/L Quarterly GRAB Effluent Gross REQUIREMENT 30DA AVG DAILY MX Cadmium, potentially dissolvd SAMPLE MEASUREMENT 013131 0 Effluent Gross PERMIT REQUIREMENT ***"* **""*' '*'«** ***"*" Req. Mon.yj 30171A AVG % Req. Mona;-%! DAILY MX ug/L Quarterly GRAB Chromium, trivalent, potentially dissolvd SAMPLE MEASUREMENT ****** *'*"* **«*'* **"~*j� i ( 013141 0 PERMIT ****** *****' '***** ****'* Req. Mon. Req. Mon. ug/L Quarterly GRAB Effluent Gross REQUIREMENT 30DA AVG DAILY MX Lead, potentially dissolvd SAMPLE MEASUREMENT 013181 0 PERMIT *"*** '****" '*'**' *****` Req. Mon. Req. Mon. ug//L Quarterly GRAB Effluent Gross REQUIREMENT 30DA AVG DAILY MX Nickel, potentially dissolvd SAMPLE MEASUREMENT 013221 0 PERMIT ****** *"**' *«*"` ****** Req. Mon. Req. Mon. ug/L Quarterly GRAB Effluent Gross REQUIREMENTF 30DA AVG DAILY MX NAMEITITLE PRINCIPAL EXECUTIVE OFFICER 1 certify under penalty of law that this document and all attachment: were prepared under my direction or TELEPHONE DATE supervision in accordance with a system designed to assure that qualined personnel properly gather and evaluate the information submitted Based an my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information the information submitted is •:+..�— » (..'^�--�; I' y� A1'� �.� ,t Z L JYl7 ` y1n+ to the best of my knowledge and belief true accurate, and complete I am aware that there are significant penalties for submitting la—format— including the possibility of fine and imprisonment for knowing violations SIGNATURE OF PRIN PAL EXECUTIVE OFFICER OR AUTHORIZED AGENT -1116 TYPED OR PRINTED AREAC-. NUMBER MMIDDIYYYY COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) AFTER COLLECTION OF 12 SAMPLES, PERMITTEE IS REQUIERD TO REQUEST A REASONABLE POTENTIAL ANALYSIS BEPERFORMED. EPA Form 3320-1 (Rev.01106) Previous editions may be used. 04/20/2015 Page 1