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PERMITTEE NAME/ADDRESS (includes Facility Name/Location If Different) <br />NAME TWENTYMILE COAL COMPANY <br />ADDRESS MINES 1,20 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) (SUER JC) <br />PRIOR TO FOIDEL CREEK TRIB ROU' <br />COG072758 001 A F-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 />08 04 01 TO 08 04 30 <br /> QUANTITY OR LOADING QUALITY OR CONCENTRATION FREQUENCY SAMPLE <br />PARAMETER <br />AVERAGE <br />MAXIMUM <br />UNITS <br />MINIMUM <br />AVERAGE <br />MAXIMUM <br />UNITS . <br />NO <br />of ANALYSIS TYPE <br />pH SAMPLE <br />MEASUREMENT ..,... ...... <br />8.38 ...,,. <br />8.41 (12) <br />0 <br />1f7 <br />INSITU <br />00400 1 0 0 <br />EFFLUENT GROSS VALUE PERMIT <br />REQUIREMENT ,••••• 6.5 <br />MINIMUM 9 <br />MAXIMUM SU <br />WEEKLY <br />INSITU <br />SOLIDS, TOTAL <br />SUSPENDED SAMPLE <br />MEASUREMENT <br />10.55 <br />15 (19) <br />0 <br />4/30 <br />grab <br />00530 1 0 0 <br />EFFLUENT GROSS VALUE PERMIT <br />-:REQUIREMENT "'«. <br />- ...,, ...... 30 <br />30 DAY AVG 45 <br />MAX7DAV MG/L <br />WEEKLY <br />GRAB.. <br />OIL AND GREASE SAMPLE <br />MEASUREMENT <br />NA <br />NA <br />NA <br />grab <br />03582 1 0 0 <br />EFFLUENT GROSS VALUE PERMIT <br />REQUIREMENT REPORT - <br />INST MAX ,.•.. 10 <br />INST MAX ... <br />CONTINGENT <br />GRAB <br />FLOW, IN CONDUIT OR <br />THRU TREATMENT PLANT SAMPLE <br />MEASL;REF.IC9JT <br />< 0.0005 <br />0.014 (03) <br />**"` <br />0 <br />1/7 <br />NA <br />50050 1 0 0 <br />SEE COMMENTS BELOW P1 F11"11 F <br />REQUIREMENT OPTIONAL <br />30DA AVG REPORT <br />DAILY MAX MGD <br />- WEEKLY <br />GRAB <br />SOLIDS, TOTAL <br />DISSOLVED SAMPLE <br />MEASUREMENT """ *`*"` "*#*** <br />472 <br />600 <br />(19) <br />0 <br />4/30 <br />grab <br />70295 1 0 0 <br />EFFLUENT GROSS VALUE PERMIT <br />REI UIREMENT OPTIONAL <br />30 DAYAVG- REPORT <br />DAILY MIX MG/L. <br />WEEKLY <br />GRAB <br />OIL AND GREASE <br />VISUAL SAMPLE <br />MEASUREMENT <br />0 (94) <br />0 <br />1/7 <br />Visual <br />84066 1 0 O <br />EFFLUENT GROSS VALUE :'.PERMIT <br />°.REQUIREMENT REPORT <br />INST MAX - YES=1 <br />NO = 0 <br />WEEKLY - <br />VISUAL <br /> <br /> <br />NAMEMTLE PRINCIPAL EXECUTIVE OFFICER I Certify under penalty 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 <br />the person or persons who manage the system, or those persons directly responsible for <br />SIGNATURE OF PRINCIPAL U <br /> gathering the information, the information submitted is, to the best of my knowledge and belief, OFFICER OR AUTHORIZED AGENT AREA CODE NUMBER MO <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 />VIJIVIIVICIV I J MIVU r-Ar LMIVM I MAN llr MIV 1 v l'-"-- I lwl- It lclclcll- all -1- It ll-lw IOUs c7 <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 LBA.D, PG. 11. <br />EPA Form 3320-1 (REV 3/99) Previous editions may be used PAGE 1 OF 2 <br />00273/010320-1132