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NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) MAJOR <br />PERMITTEE NAME/ADDRESS (includes Facility Name/Location if Different) DISCHARGE MONITORING REPORT (DMR) (SUBR JC) <br />F - FINAL ROUTT <br />NAME TWENTYMILE COAL COMPANY MINE 1, POND D TO FOIDEL CREEK <br />ADDRESS MINES 1,2&3 SOUTH, & ECKMAN PK 000027154 005 A = Check here if No Discharge <br />29515 RCR #27 PERMIT NUMBER DISCHARGE NUMBER NOTE: Read instructions before completing this form <br />FACILITY LOCATION OAK CREEK, CO 80467 <br />ATTN: Mr. Jerry Nettleton, Environmental Supervisor <br />MONITORING PERIOD <br />YEAR MO DAY YEAR MO DAY <br />10 04 01 TO 10 04 30 <br /> QUANTITY OR LOADING QUALITY OR CONCENTRATION FREQUENCY SAMPLE <br />PARAMETER NO. OF TYPE <br /> AVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX ANALYSIS <br />pH SAMPLE *****` **"`*' ** **** <br /> MEASUREMENT 8.28 $.$ 0 4/31 grab <br />00400 1 0 PERMIT 6.5 ** **** 9 SU Twice <br />EFFLUENT GROSS VALUE REQUIREMENT MINIMUM MAXIMUM Per Month GRAB <br />SOLIDS, TOTAL SAMPLE *"*** *"*"*" '*«*** <br />SUSPENDED MEASUREMENT NA NA NA NA NA <br />00530 O 0 PERMIT `"`*'* '***** '**'*' *"**** Req. Mon. Req. Mon. MG/L <br />SEE COMMENTS BELOW REQUIREMENT 30DA AVG DAILY MAX WEEKLY GRAB <br />SOLIDS, TOTAL SAMPLE <br />SUSPENDED MEASUREMENT 12.5 16 0 1/7 grab <br />00530 1 0 PERMIT 35 70 MG/L <br />EFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILY MAX WEEKLY GRAB <br />SOLIDS, SETTLEABLE SAMPLE <br /> MEASUREMENT NA NA NA NA NA <br />00545 O 0 PERMIT ** *"*** *'**** ** *" Req. Mon. 0.5 MUL <br />SEE COMMENTS BELOW REQUIREMENT 30 DAY AVG DAILY MAX WEEKLY GRAB <br />SOLIDS, SETTLEABLE SAMPLE <br /> MEASUREMENT < 0.1 < 0.1 0 1[7 grab <br />00545 1 0 PERMIT Req. 'Mon. Req. Mon. MUL <br />EFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILY MX WEEKLY GRAB <br />IRON, TOTAL RECOVERABLE SAMPLE <br /> MEASUREMENT 150 190 0 2/31 grab <br />00980 1 0 PERMIT 1000 Req. Mon. UG/L F Twice <br />EFFLUENT GROSS VALUE REQUIREMENT 30DA AVG DAILY MX Per Month GRAB <br />OIL AND GREASE SAMPLE *****` *'*"` *'*'** ** **** (19) <br />VISUAL MEASUREMENT NA NA NA NA <br />03582 1 0 PERMIT 10 MG/ I <br />EFFLUENT GROSS VALUE REQUIREMENT INST MAX Contingent VISUAL <br />NAME/TITLE PRINCIPAL EXECUTIVE OFFICER I Certify under penalty of law that this document and all attachments were prepared under TELEPHONE DATE <br /> my direction or supervision in accordance with a system designed to assure that qualified ?iJ <br />L <br /> <br />Brian A. Watterson <br />personnel properly gather and evaluate the information submitted. Based on my inquiry of ` <br />J "V <br />970 870 - 2750 <br />f(i' <br />Q(f <br />Geologist the person or persons who manage the system, or those persons directly responsible for SIGNATURE OF PRINCIPAL b <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 /> 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 />COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) <br />ALTERNATE LIMITS FOR TSS & SETTLEABLE SOLIDS (LOC'O') APPLY ONLY IF <= 10=YR,24-HR PRECIP EVENT CLAIMED. <br />SEE PART I.A.4., PG. 8 FOR BURDEN OF PROOF REQUIREMENTS. OIL & GREASE - SEE 1.8.1.1), PG. 11. <br />EPA Form 3320-1 (REV 3/99) Previous editions may be used PAGE 1 OF 2