2015-05-01_HYDROLOGY - C1982056 (11)

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PERM ITTEE NAME/ADDRESS (Include Facility Name/Location if Different) NAME: Twentymile Coal LLC ADDRESS: 29515 Routt CR 27 Oak Creek, CO 80467 FACILITY: MINES 1 &2 AND ECKMAN PARK MINE LOCATION: 29515 RCR #27 OAK CREEK, CO 80467 ATTN: Patrick Sollars, GM NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) DISCHARGE MONITORING REPORT (DMR) C00027154 004-A PERMIT NUMBER DISCHARGE NUMBER MONITORING PERIOD MM /DD/YYYY SAMPLE MM /DD/YYYY 03/01 /201 �"' EX 03/31/2016— Form Approved OMB No. 2040 -0004 DMR Mailing ZIP CODE: 80467 MAJOR (SUBR JC) ROUTT MINE 1, POND C TO FOIDEL CREEK External Outfall No Discharge NAMEITITLE PRINCIPAL EXECUTIVE OFFICER I certify under penalty of law that this document and all attachments were prepared under my direction or TELEPHONE DATE sualuate the in accordance bmi a system designed on my I to assure that qualified personnel properly gather and valuate the Infonnatwn submitted Based on my Inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is A _ _ f7 I , to the best of my knowledge and belief, true, accurate and complete. I am aware that there are �C L L; tML�MIDDryyyy '1�.) noC� U < t- ecso /'t sgroricantpenaltiesforsubmittingfalseInformation. Includingthepossilblity offineandlmp —mein for SIGNATURE OF PRINCIPAL EXECUTIVE OFFICER OR / TYPED OR PRINTED wingvrolations. AUTHORIZED AGENT aREacode NUMBER COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) ALTERNATE LIMITS FOR TSS (MLOC =O) APPLY IF 10YR,24HR PRECIP EVENT CLAIMES. ALTERNATE LIMITS FOR IRON &SETTLEABLE SOLIDS (MLOC =O) APPLY ONLY IF < =10YR,24HR PRECIP. EVENT CLAIMED. OIL & GREASE -SEE I.C.19,PAGE 16. 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 Oil and grease SAMPLE * * " " MEASUREMENT 035821 0 PERMIT * * " * ** * * * * ** * * * " ** * * * * ** ** * ** 10 mg /L Contingent GRAB Effluent Gross REQUIREMENT INST MAX Flow, in conduit or thru treatment plat SAMPLE *** * MEASUREMENT 500501 0 PERMIT Req. Mon. Req. Mon. MGD *** * ** " *** ** * * * * ** ****** Continuous RCORDR Effluent Gross REQUIREMENT 30DA AVG DAILY MX Oil and grease visual SAMPLE MEASUREMENT 840661 0 PERMIT ** * * ** Req. Mon. Y =1;N =0 **** * "** "** * * **** "*"** Weekly VISUAL Effluent Gross REQUIREMENT INST MAX NAMEITITLE PRINCIPAL EXECUTIVE OFFICER I certify under penalty of law that this document and all attachments were prepared under my direction or TELEPHONE DATE sualuate the in accordance bmi a system designed on my I to assure that qualified personnel properly gather and valuate the Infonnatwn submitted Based on my Inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is A _ _ f7 I , to the best of my knowledge and belief, true, accurate and complete. I am aware that there are �C L L; tML�MIDDryyyy '1�.) noC� U < t- ecso /'t sgroricantpenaltiesforsubmittingfalseInformation. Includingthepossilblity offineandlmp —mein for SIGNATURE OF PRINCIPAL EXECUTIVE OFFICER OR / TYPED OR PRINTED wingvrolations. AUTHORIZED AGENT aREacode NUMBER COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) ALTERNATE LIMITS FOR TSS (MLOC =O) APPLY IF 10YR,24HR PRECIP EVENT CLAIMES. ALTERNATE LIMITS FOR IRON &SETTLEABLE SOLIDS (MLOC =O) APPLY ONLY IF < =10YR,24HR PRECIP. EVENT CLAIMED. OIL & GREASE -SEE I.C.19,PAGE 16. EPA Form 3320 -1 (Rev.01106) Previous editions may be used. 08/26/2013 Page 2