2011-06-01_HYDROLOGY - C1982056 (2)

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NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) DISCHARGE MONITORING REPORT (DMR) PERM ITTEE NAME/ADDRESS (Include FacilityName/Location if Different) NAME: Twentymile Coal Company ADDRESS: 29515 Routt CR 27 Oak Creek, CO 80467 FACILITY: MINES 18,2 AND ECKMAN PARK MINE LOCATION: 29515 RCR #27 OAK CREEK, CO 80467 000027154 002-A PERMIT NUMBER DISCHARGE NUMBER MONITORING PERIOD MM/DD/YYYY MM/DD/YYYY FROM 04/0172011 TO 04/30/2011 Form Approved OMB No. 2040-0004 DMR Mailing ZIP CODE: 80467 MAJOR (SUBR JC) ROUTT MINE 1, POND T TO FOIDEL CREEK External Outfall ATTN: JERRY NETTLETON, ENV SUPERVISR No Discharge PARAMETER QUANTITY OR LOADING QUALITY OR CONCENTRATION NO. EX FREQUENCY OF ANALYSJS SAMPLE TYPE VALUE VALUE UNITS VALUE VALUE VALUE UNITS Oil and grease SAMPLE .„... MEASUREMENT A4 0358210 PERMIT 10 mg/L Effluent Gross REQUIREMENT INST MAX Contingent GRAB Flow, in conduit or thru treatment plant SAMPLE 8 ? r 6 ,,••,* ...... ****** ****** / 16 !n MEASUREMENT V, ,© 50050 1 0 PERMIT Req. Mon. Req. Mon. Mgal/d ****** *'*'** **"*' ****** tee IAA- Effluent Gross REQUIREMENT 30DA AVG DAILY MX ?C9RBR Oil and grease visual SAMPLE *«.... 4 ««,«,« ...... ..,.,. ..«««. - MEASUREMENT Q VLSu? 84066 1 0 PERMIT Req. Mon. Y=1;N=0 ***`*• ""'* '*"" ***"` Effluent Gross REQUIREMENT INST MAX Weekly VISUAL NAME/TITLE PRINCIPAL EXECUTIVE OFFICER 1 eenify under penalry of law that this document and all attachments were prepared under my direction or s=1 1ninaccordance with a system designed to ensure hat qualified peno" I roperly gather and '' TELEPHONE DATE A / Q , S 1 valuate the information submitted. Based on my inquiryof the person or persons who manage the system, or those persons directly responsible for gathering the information, the mfomration submitted is, to the best of my knowledge and belief, we, accurate, and complete. lam aware that there are significant ,(A`/ 4 ?L 7(? ?? Z 0S -L/ W ? lhhJJ/ V v violations. eeforsubmittingtalseinforma[ion,indudingthepossihihryof6neardimprisonmen[forknowing SIGNATURE OF PRINCIPAL EXECUTIVE OFFICER OR - TYPED OR PRINTED AUTHORIZED AGENT AREA coda NUMBER MMIODNYYY UUMMLN 15 ANU CA.rLANAI IUN ur ANT viuLA 1 IuNJ tKeTerence all aicacnmenis nere) ALTERNATE LIMITS FOR TSS (MLOC=Q) APPLY IF 10YR/24HR PRECIP EVENT CLAIMED. 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.01/06) Previous editions may be used. 03131/2011 Page 2