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PERMITTEE NAME/ADDRESS (includes Facility Name/Location if Different) <br />NAME TWENTYMILE COAL COMPANY <br />ADDRESS MINES 1,2&3 SOUTH, & ECKMAN PK <br />29515 RCR #27 <br />FACILITY LOCATION OAK CREEK, CO 80467 <br />ATTN: Mr. Jerry Nettleton, Environmental Supervisor <br />NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) MAJOR <br />DISCHARGE MONITORING REPORT (DMR) (SUBR JC) <br /> F - FINAL ROUTT <br /> MINE 1, FISH CREEK PIPELINE CROSSIN, <br />COG-073311 001 A = Check here if No Discharge <br />PERMIT NUMBER DISCHARGE NUMBER NOTE: Read Instructions before completing this form <br />MONITORING PERIOD <br />YEAR MO DAY YEAR MO DAY <br />10 10 01 TO 10 10 31 <br /> QUANTITY OR LOADING QUALITY OR CONCENTRATION FREQUENCY SAMPLE <br />PARAMETER <br /> NO. OF TYPE <br /> AVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX ANALYSIS <br />pH SAMPLE <br /> MEASUREMENT 8.15 8.6 0 1/7 Insltu <br />00400 1 0 PERMIT 6.5 9 SU <br />EFFLUENT GROSS VALUE REQUIREMENT <br /> <br />SOLIDS <br />TOT MINIMUM MAXIMUM WEEKLY INSITU <br />, <br />AL SAMPLE <br />SUSPENDED MEASUREMENT 10.4 14 0 117 Grab <br />00530 1 0 PERMIT * ~""`* 30 45 mg/L <br />EFFLUENT GROSS VALUE REQUIREMENT <br /> <br />OIL AND GREASE 30 DAY AVG DAILY MAX WEEKLY GRAB <br /> SAMPLE <br /> MEASUREMENT NA NA NA NA <br />03582 1 0 PERMIT` 10 MG/L <br />EFFLUENT GROSS VALUE REQUIREMENT <br /> <br />OIL AND GREASE <br />SAMPLE INST MAX CONTINGENT GRAB <br />VISUAL MEASUREMENT 0 0 1/7 Visual <br />84066 1 0 PER "**'* <br /> MIT REPORT YES= 1 "*"** ""*** *'°*•* *_*+ <br />EFFLUENT GROSS VALUE REQUIREMENT INST MAX NO = 0 <br /> <br />FLOW, IN CONDUIT OR <br />SAMPLE WEEKLY VISUAL <br />THRU TREATMENT PLANT MEASUREMENT 0 <br />50 0 <br />55 <br /> . . 0 1/7 Instan <br />50050 1 0 PERMIT <br /> Req- Mon. Req. Mon. Mgal/d <br />SEE COMMENTS BELOW REQUIREMENT 30DA AVG DAILY MAX <br /> <br />SOLIDS, TOTAL <br />SAMPLE WEEKLY Instan. <br /> <br />DISSOLVED <br />MEASUREMENT <br />358 <br />369 (19) <br />0 <br />3/31 <br />Grab <br />70295 1 0 PERMIT ***"` "**** *'*" <br /> "'**" Req. mon. Req. Mon MG/L <br />EFFLUENT GROSS VALUE REQUIREMENT <br /> 30 Day AVG Monthly MX MONTHLY GRAB <br /> <br /> <br /> 1 6 <br />NAME/TITLE PRINCIPAL EXECUTIVE OFFICER I Certify under penalty of law that this document an <br />d all attachments were prepared under <br />TE <br /> LEPHONE DATE <br /> my direction or supervision in accordance with a system designed to assure that qualified <br />Brian A. Watterson, P.G. personnel properly gather and evaluate the information submitted <br />Based on my inquir <br />of <br /> . <br />y 970 870 - 2750 <br />Geologist the person or persons who manage the system, or those persons directly responsible for <br />h <br />i SIGNATURE OF PRINCIPAL <br /> gat <br />er <br />ng the information, the information submitted is, to the best of my knowledge and belief OFFICER OR AUTHORIZED AGENT AREA <br /> , CODE NUMBER YEAR MO DAY <br /> true, accurate, and complete. I am aware that there are significant penalties for submitting <br />TYPE OR PRINTED <br />(`IIA I?.fCA1T[? AAlfl CVr]I A false information, including the possibility of fine and imprisonment for knowing violations. <br />REPORT LC50 - STATISTICAL POINT ESTIMATE WHICH IS LTHAL TO 50% OF TEST ORGANISMS, AND ATTACH ACUTE TOXICITY TEST REPORT FORM TO DMR. <br />EPA Form 3320-1 (REV 3/99) Previous editions may be used PAGE 1 OF 1 <br />00228/010702-1120