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PERMITTEE NAME/ADDRESS (includes Facility Name/Location if Different) <br />NAME TWENTYMILE COAL COMPANY <br />ADDRESS MINES 1 & 2 SOUTH, & ECKMAN PK <br />29515 RCR #27 <br />FACILITY LOCATION OAK CREEK, CO 80467 <br />ATTN: Mr. Jerry Nettleton, Env. Manager <br />NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) MINOR <br />DISCHARGE MONITORING REPORT (DMR) (SUBR JC) <br />F - FINAL ROUTT <br />ACUTE WET TESTING FOR 001A <br />COG850000 001 W I 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 />09 04 01 TO 09 06 30 <br /> QUALITY OR LOADING QUALITY OR CONCENTRATION FREQUENCY SAMPLE <br />PARAMETER NO. OF TYPE <br /> <br />LC50 STATRE 48HR ACU <br />Ceriodaphnia <br />SAMPLE <br />MEASUREMENT AVERAGE <br /><***** MAXIMUM <br />****** UNITS MINIMUM <br /> <br />> 100 AVERAGE <br />••**•• MAXIMUM <br />****** UNITS <br />(23) EX <br /> <br />0 ANALYSIS <br /> <br />1192 <br /> <br />TAM3C 1 0 0 <br />PER <br />'••"** <br />*'**** <br />••*•** GRAB <br /> <br />EFFLUENT GROSS VALUE MIT <br />REQUIREMENT 100 <br />MN VALUE ***'** ***""* PERCENT <br />QTRLY grab <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />NAMEITITLE PRINCIPAL EXECUTIVE OF FICER I Certify under penalty of law that this document an d all attachme nts were prepared under <br /> <br />di <br />i TELEPHONE DATE <br /> <br />Brian A. Watterson, P.G. <br />G <br />i my <br />rect <br />on or supervision in accordance with a system designed to assure that qualified <br />personnel properly gather and evaluate the information submitted. Based on my inquiry of V <br />970 870 - 2750 <br /> <br />st <br />eolog <br />the person or persons who manage the system, or those persons directly responsible for <br />gathering the information, the information submitted is, to the best of my knowledge and belief <br />SIGNATURE OF PRINCIPAL <br />OFFICER OR AUTHORIZED AGE Q co 2 <br /> , NT AREA CODE NUMBER YEAR MO DAY <br /> <br />TYPE OR PRINTED <br />!`(IA AAA=KMC A- CVMI AAI AI.-K1 - true, accurate, and complete. I am aware that there are significant penalties for submitting <br />false information, including the possibility of fine and imprisonment for knowing violations. <br />_ -... _ ..._ - - .. ..... _.. _. ...-. -..??. .. .....v 1•.v, vi ....vv u„ uava., iilci itu icl c? <br />SEE PART I.A.3, PP 5-7 FOR DETAILS OF TEST PROCEDURE. REPORT LC50 - STATISTICAL POINT ESTIMATE WHICH IS LETHAL TO 50% OF TEST ORGANISMS (LC50) AND ATTACH ACUTE TOXICITY TEST REPORTFORM <br /> TO DMR. <br />TOXICITY TEST REORT FORM TO DMR. COPIES OF ALL INFORMATION MUST BE SENT TO EPA. <br />EPA Form 3320-1 (REV 3199) Previous editions may be used <br />PAGE 1 OF 1 <br />00005/010129-1126