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PERMITTEE NAME/ADDRESS (includes Facility Name/Location if Different) <br />NAME TWENTYMILE COAL COMPANY <br />ADDRESS MINES 1,2&3 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, POND G TO FOIDEL CREEK <br />000027154 008 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 01 01 TO 10 01 31 <br /> QUANTITY OR LOADING QUALITY OR CONCENTRATION FREQUENCY SAMPLE <br />PARAMETER <br />La2? <br />NO. <br />OF <br />TYPE <br /> AVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX ANALYSIS <br />pH SAMPLE ""`* *«"*"' " ***' (12) <br /> MEASUREMENT 8.2 8.2 0 117 INSITU <br />00400 1 0 0 PERMIT "`*«* *****' *'**** 6.5 9 SU <br />EFFLUENT GROSS VALUE REQUIREMENT MINIMUM MAXIMUM WEEKLY INSITU <br />SOLIDS, TOTAL SAMPLE *"""** *"*`* "**** (19) <br />SUSPENDED MEASUREMENT < 5 < 5 0 1/7 grab <br />00530 1 0 0 PERMIT *""" ***'*' ****** *"*'*` 35 70 MG/L <br />EFFLUENT GROSS VALUE REQUIREMENT 30DA AVG DAILY MAX WEEKLY GRAB <br />SOLIDS, TOTAL SAMPLE """' *****" '****' (19) <br />SUSPENDED MEASUREMENT NA NA NA NA <br />00530 O 0 0 PERMIT *`""'* ***'** ****"* *'*'*' Req, Mon req. Mon. MG/L <br />SEE COMMENTS BELOW REQUIREMENT 30 DAY AVG DAILY MAX WEEKLY GRAB <br />SOLIDS, SETTLEABLE SAMPLE (25) <br /> MEASUREMENT < 0.1 < 0.1 0 1/7 grab <br />00545 1 0 0 PERMIT «***'* "'**` ****** **"*** Req, Mon 0.5 MUUhr <br />EFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILY MAX WEEKLY GRAB <br />SOLIDS, SETTLEABLE SAMPLE <br /> MEASUREMENT NA NA (25) NA NA NA <br />00545 O 0 0 PERMIT Req, Mon Req. Mon. MUUhr <br />F <br />SEE COMMENTS BELOW REQUIREMENT 30 DAY AVG DAILY MX WEEKLY GRAB <br />IRON, TOTAL SAMPLE *****" *"*'*" """ <br />(AS FE) MEASUREMENT 60 60 (19) 0 1/7 grab <br />01045 1 0 0 PERMIT «***** *`**'* "`*'* `***" 3500 7000 UG/L <br />EFFLUENT GROSS VALUE REQUIREMENT 30DA AVG DAILY MX WEEKLY GRAB <br />IRON, TOTAL SAMPLE ****" ***'*` **"*« (19) <br />(AS FE) MEASUREMENT NA NA NA NA NA <br />01045 0 0 0 PERMIT `***" **'*** ****** *****« Req, Mon Req. Mon. UG/L <br />SEE COMMENTS BELOW REQUIREMENT 30DA- AVG DAILY MX WEEKLY GRAB, <br />NAMErrITLE 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 Q <br />Brian A. Watterson, P.G. personnel properly gather and evaluate the information submitted. Based on my inquiry of 970 870 - 2750 Q <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 /> 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 LAA., PG. 8 FOR BURDEN OF PROOF REQUIREMENTS. OIL & GREASE - SEE I.B.1.D, PG. 11. <br />EPA Form 3320-1 (REV 3/99) Previous editions may be used PAGE 1 OF 2 <br />00273/010320-1132