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PERMITTEE NAME/ADDRESS (includes Facility Name/Location if Different) <br />NAME TWENTYMILE COAL COMPANY <br />ADDRESS MINES 1,20 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) (SUER 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 07 01 TO 10 07 31 <br /> QUANTITY OR LOADING QUALITY OR CONCENTRATION FREQUENCY SAMPLE <br />PARAMETER <br />E?2 <br /> NO. OF TYPE <br /> AVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX ANALYSIS <br />pH SAMPLE ,*,„' <br /> MEASUREMENT 8.43 8.7 0 1/7 Insltu <br />00400 1 0 PERMIT 6.5 9 SU <br />EFFLUENT GROSS VALUE REQUIREMENT MINIMUM MAXIMUM WEEKLY INSITU <br />SOLIDS, TOTAL SAMPLE "*"" **"'* ****** <br />SUSPENDED MEASUREMENT 20.5 59 1 1/7 Grab <br />00530 1 0 PERMIT *,*,,, ***«•• «,.*.« ...«,« 30 45 mg/L <br />EFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILY MAX WEEKLY GRAB <br />OIL AND GREASE SAMPLE *"*`* '**"** ****** ** **** <br /> MEASUREMENT NA NA NA NA <br />03582 1 0 PERMIT 10 MG/L <br />EFFLUENT GROSS VALUE REQUIREMENT INST MAX CONTINGENT GRAB <br />OIL AND GREASE SAMPLE *****' ****** *" **** ****** <br />VISUAL MEASUREMENT 0 **" 0 1/7 visual <br />84066 1 0 PERMIT REPORT YES = 1 <br />EFFLUENT GROSS VALUE REQUIREMENT INST MAX NO = 0 WEEKLY VISUAL <br />FLOW, IN CONDUIT OR SAMPLE '***** ** *"** •**** <br />THRU TREATMENT PLANT MEASUREMENT 2.35 2.5 0 1f7 Instan <br />50050 1 0 PERMIT Req. Mon. Req. Mon. Mgal/d <br />SEE COMMENTS BELOW REQUIREMENT 30DA AVG DAILY MAX WEEKLY Instan: <br />SOLIDS, TOTAL SAMPLE <br />(19) <br />DISSOLVED MEASUREMENT 480 480 0 1/30 Grab <br />70295 1 0 PERMIT *****' **•,•« ..,«,« ****," <br />Req. mon, <br />Req. Mon. <br />MG/L <br />EFFLUENT GROSS VALUE REQUIREMENT 30 Day_AVG Monthly rMX MONTHLY GRAB <br /> <br /> <br />NAME/TITLE PRINCIPAL EXECUTIVE OFFICER I Certify under penalty of law that this document and all attachments were prepared under TELEPHONE <br /> <br /> my direction or supervision in accordance with a system designed to assure that qualified <br />Brian A. Watterson, P.G. personnel property gather and evaluate the information submitted. Based on my inquiry of 970 870 - 2750 A <br />Geologist the person or persons who manage the system, or those persons directly responsible for SIGNATURE OF PRINCIPAL <br /> <br />gathering the information, the information submitted is, to the best of my knowledge and belief, <br />OFFICER OR AUTHORIZED AGENT <br />AREA CODE NUMBER YIA <br /> true, accurate, and complete. I am aware that there are significant penalties for submitting <br />TYPE OR PRINTED 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