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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, 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 />COG850000 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 04 01 TO 09 06 31 <br /> QUALITY OR LOADING QUALITY OR CONCENTRATION FREQUENCY SAMPLE <br />PARAMETER <br />?E? <br /> No. OF TYPE <br /> AVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX ANALYSIS <br />PH SAMPLE ++++.. +++... ++ ++.* (12) <br /> MEASUREMENT 8.4 8.6 0 3/92 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 *****w ****** (19) <br />SUSPENDED MEASUREMENT ww***** 35 74 1 3192 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 3192 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 NA GRAB <br />00980 P 0 0 PERMIT **++w+ ++**** ****** ».*+..+. :. REPORT REPORT " ML/L TWICE <br />See Comments Below REQUIREMENT ROLL AVG DAILY MX PER MO GRAB <br />IRON SAMPLE ****** ****** (19) <br />TOTAL RECOVERABLE MEASUREMENT ******* 1035 1400 1 3192 GRAB <br />00980 1 0 0 PERMIT ++++++ ++*++* **++++ ,+.«... 1000 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 0.57 0.76 **** 0 117 INSITU <br />50050 1 0 0 PERMIT REPORT REPORT MGD ****** ** **** "***w* **** TWICE <br />EFFLUENT GROSS VALUE REQUIREMENT 30DA AVG DAILY MAX PER MO INSITU> <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 />Brian A. Watterson, P.G. personnel properly gather and evaluate the information submitted. Based on my inquiry of 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 /> 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 />v vnunu* , v raw -1" -1 - - - 1 -1 1-- (116161-- qU ClIOI:IIIIICIIW IICIC/ <br />OIL & GREASE SAMPLE REQUIRED IF VISIBLE SHEEN IS OBSERVED - SEE I.B.1.(D). DETECTION LIMITS - SEE I.E.3. SALINITY MONITORING - SEE I.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 <br />PAGE 1 OF 2 <br />00397/010709-1126