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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) MINOR <br />DISCHARGE MONITORING REPORT (DMR) (SUBR JC) <br />F - FINAL ROUTT <br />ACUTE WET TESTING FOR 001A <br />000036684 001 W =1 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 07 01 TO 09 09 31 <br /> QUALITY OR LOADING QUALITY OR CONCENTRATION FREQUENCY SAMPLE <br />PARAMETER <br />AVERAGE <br />MAXIMUM <br />UNITS <br />MINIMUM <br />AVERAGE <br />MAXIMUM <br />UNITS NO. <br />EX OF <br />ANALYSIS TYPE <br />LC50 STATRE 48HR ACU <br />CERIODAPHNIA SAMPLE <br />MEASUREMENT ****** ****** <br />> 100 «+•+++ .+++++ (23) <br />0 <br />1190 <br />rab <br />TAM3B 1 0 0 <br /> <br />EFFLUENT GROSS VALUE PERMIT <br /> <br />REQUIREMENT +++++* +.++.+ *****+ <br />100.0001 <br />MN VALUE +++++* .**++. <br />PERCENT <br /> <br />QTRLY <br /> <br />GRAB <br />LC50 STATRE 96HR ACU <br />MENIDIA SAMPLE <br />MEASUREMENT ****** ****** <br />> 100 **•+** «+++++ (23) <br />0 <br />1/90 <br />grab <br />TAN66 1 0 0 <br />EFFLUENT GROSS VALUE PERMIT <br />REQUIREMENT *`***` ***** *«**** 100.0001 <br />MN VALUE ****** "***** PERCENT <br />QTRLY <br />GRAB' <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />NAME/TITLE PRINCIPAL EXECUTIVE OFFICER I Certify under penally of law that this document and all attachments were prepared under TELEPHONE DATE <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 />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 DAY <br /> <br />TYPE OR PRINTED 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 />GuivIIVEN I J AND r-Ar LAMA 1 ION OF ANY V IOLA I IONS (Reference all arrachments here) <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