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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, Env. Manager <br />NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) MINOR <br />DISCHARGE MONITORING REPORT (DMR) (SUBR JC) <br />F - FINAL ROUTT <br />POND DISCHARGE TO FISH CREEK <br />000042161 001 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 />09 07 01 TO 09 09 30 <br /> QUALITY OR LOADING QUALITY OR CONCENTRATION FREQUENCY SAMPLE <br />PARAMETER <br />L22 <br /> NO. OF TYPE <br /> AVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX ANALYSIS <br />pH SAMPLE **.... ".."" •` "** (12) <br /> MEASUREMENT 8.4 8.5 0 7/92 GRAB <br />00400 1 0 0 PERMIT •`•`** `•'«`« «****" 6.5 `* ***• 9.0 SU TWICE <br />EFFLUENT GROSS VALUE REQUIREMENT MINIMUM MAXIMUM PER MO GRAB <br />SOLIDS, TOTAL SAMPLE •"*** `***** (19) <br />SUSPENDED MEASUREMENT ******* < 6.75 11 0 12/92 GRAB <br />00530 1 0 0 PERMIT *`*'•` *•"" "`•" "" 35 70 MG/L TWICE <br />EFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILY MAX PER MO GRAB <br />SOLIDS, SETTLEABLE SAMPLE •`•"* ~••** *•**** (25) <br /> MEASUREMENT < 0.1 < 0.1 0 13/92 GRAB <br />00545 1 0 0 PERMIT •*"**` ****** **`*" •***"" REPORT 0.5 ML/L TWICE <br />EFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILY MAX PER MO GRAB <br />IRON SAMPLE (19) <br />TOTAL RECOVERABLE MEASUREMENT ****** NA ******* NA NA GRAB <br />00980 P 0 0 PERMIT •""* `*••" ""`" "' REPORT MG/L TWICE <br />See Comments Below REQUIREMENT ROLL AVG PER MO GRAB <br />IRON SAMPLE ****** ••*•** (19) <br />TOTAL RECOVERABLE MEASUREMENT ******* 1090 1300 1 6/92 GRAB <br />00980 1 0 0 PERMIT `•`*"* *•'•'• '•••" 1047.0 REPORT UG/L TWICE <br />EFFLUENT GROSS VALUE REQUIREMENT 30DA AVG DAILY MX PER MO GRAB <br />OIL AND GREASE SAMPLE `*"**` •`••" **•••• •* **** <br /> MEASUREMENT NA (19) NA NA GRAB <br />03582 1 0 0 PERMIT `••*** •**•*• ..... *"...« ...*.. 10 .•.. <br />See Comments Below REQUIREMENT INST MAX MG/L CONTINGENT GRAB <br />FLOW, IN CONDUIT OR SAMPLE (03) **•*** ** **** **•?•• <br />THRU TREATMENT PLANT MEASUREMENT 0.16 0.25 `*** 0 1/7 <br />50050 1 0 0 PERMIT 1.58 REPORT MGD "•'*` •• `•** ***"*• **** <br />EFFLUENT GROSS VALUE REQUIREMENT 30DA AVG DAILY MAX <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 ' <br />£ <br />Brian A. Watterson, P.G. personnel properly gather and evaluate the information submitted. Based on my inquiry of 970 870 - 2750 f <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 Y <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 EXNLAINA I IUN Uf- ANY VIOLATIONS (Reference all attachments here) <br />OIL & GREASE SAMPLE REQUIRED IF VISIBLE SHEEN IS OBSERVED - SEE 1.B.1.(D). DETECTION LIMITS - SEE I.E.3. SALINITY MONITORING - SEE 1.B.2. QUARTERLY SAMPLING INSTRUCTIONS I.C.9; <br />REPORT RESULTS ON MARCH, JUNE, SEPT, & DEC DMRS. 30 DAY AVG IS HIGHEST MONTHLY AVG DURING PERIOD REPORTED. <br />EPA Form 3320-1 (REV 3/99) Previous editions may be used PAGE 1 OF 2