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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, Environmental Supervisor <br />NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) MAJOR <br />DISCHARGE MONITORING REPORT (DMR) (SUER JC) <br />F - FINAL ROUTT <br />ACUTE WET TESTING FOR 005A <br />000027154 005 W ® 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 I 10 I 01 -l TO I- 09 T 12 1 31 <br /> <br />P QUANTITY OR LOADING QUALITY OR CONCENTRATION FREQUENCY SAMPLE <br />ARAMETER <br /> <br />-I <br />LC50 STATRE 48HR ACU <br />D. MAGNA <br /> <br />fk? <br />SAMPLE <br />MEASUREMENT <br />AVERAGE <br />'+**" <br />MAXIMUM <br />****** <br />UNITS <br />MINIMUM <br /> <br />> 100 <br />AVERAGE <br />MAXIMUM <br />,*++ * <br />UNITS <br />(23) NO. <br />EX <br /> <br />U OF <br />ANALYSIS <br /> <br />1/92 TYPE <br /> <br /> <br />Grab <br />TAM3C 1 0 R +**+'+ «+'*+* «*"'+ <br /> <br />EFFLUENT GROSS VALUE PE <br />MIT <br />REQUIREMENT 100.0001' <br />MN VALUE "* '***' *+*+** PERCENT <br />QTRLY <br />GRAB <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />NAMEITITLE PRINCIPAL EXECUTIVE OFFICER 1 Certify under penalty of law that this document and all attachments were prepared under TELEPHONE DATE <br /> <br /> <br />Brian A. Watterson, P.G. my direction 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 <br />970 870 2750 <br />i !1 <br />1 <br />77 <br />Geologist the person or persons who manage the system, or those persons directly responsible for SIGNATURE OF PRINCIPAL <br /> gathering the information, the information submitted is, to the best of my knowledge and belief, OFFICER OR AUTHORIZED AGENT AREA CODE NUMBER YEAR MO <br /> <br /> <br />TYPE OR PRINTED <br />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. DAY <br />vvv„r,?,?,v r/.v ?..?.., ...,,v,. vn,•, v/v?/-,v??a t/lclc/clll.G q1IG/lGl./11/ICIIlJ IICICj <br />SEE PART I.A.2. FOR DETAILS OF TEST PROCEDURE. REPORT LOWEST DILUTION (%EFFLUENT) WHICH IS LETHAL TO 50 % OF TEST ORGANISMS (LC50) AND ATTACH ACUTE TOXICITY TEST REPORT FORM TO DMR. <br />COPIES OF ALL INFORMATION MUST BE SENT TO EPA. <br />EPA Form 3320-1 (REV 3199) Previous editions may be used PAGE 1 OF 1