2008-10-30_HYDROLOGY - C1982056 (5)

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PERMITTEE NAME/ADDRESS (includes Facility Name/Location If Different) NAME TWENTYMILE COAL COMPANY ADDRESS MINES 1,2&3 SOUTH, & ECKMAN PK 29515 RCR #27 FACILITY LOCATION OAK CREEK, CO 80467 ATTN: Mr. Jerry Nettleton, Env. Manager NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) MINOR DISCHARGE MONITORING REPORT (DMR) (SUER JC) F - FINAL ROUTT POND DISCHARGE TO FISH CREEK 000042161 001 A r--1 Check here if No Discharge PERMIT NUMBER DISCHARGE NUMBER NOTE: Read instructions before completing this form MONITORING PERIOD YEAR MO DAY YEAR MO DAY 08 07 01 TO 08 09 30 QUALITY OR LOADING QUALITY OR CONCENTRATION FREQUENCY SAMPLE PARAMETER ?E? NO. OF TYPE AVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX ANALYSIS PH SAMPLE .«.... «..... .« *... (12) MEASUREMENT 8.4 8.7 0 9/92 GRAB 00400 1 0 0 PERMIT ' * " ••«*•• 6.5 * 9.0 SU TWICE EFFLUENT GROSS VALUE REQUIREMENT MINIMUM MAXIMUM PER MO GRAB SOLIDS, TOTAL SAMPLE **'*'* ****** (19) SUSPENDED MEASUREMENT ******* < 6.75 10 0 9/92 GRAB 00530 1 0 0 PERMIT' '**", "."' '*"«' »»» 35 70 - MG/L TWICE EFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG' DAILY MAX PER MO GRAB ' SOLIDS, SETTLEABLE SAMPLE (25) MEASUREMENT < 0.1 < 0.1 0 9/92 GRAB 00545 1 0 0 ` PERMIT REPORT -' 0.5: MG/L .TWICE -S EFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILY MAX PER MO GRAB IRON SAMPLE ****** "***' (19) TOTAL RECOVERABLE MEASUREMENT ****** NA ******* NA NA GRAB 00980 P 0 0 PERMIT REPORT ML/L TWICE See Comments Below REQUIREMENT ROLL AVG PER MO GRAB IRON SAMPLE (19) TOTAL RECOVERABLE MEASUREMENT ******* 1.13 1.3 1 9/92 GRAB 00980 1 0 0 PERMIT : *"*" *"'"'" ***"" *"""•» 1.0 REPORT ML/L TWICE EFFLUENT GROSS VALUE REQUIREMENT,: 30DA AVG DAILY MX PER MO GRAB ` OIL AND GREASE SAMPLE MEASUREMENT NA (19) NA NA GRAB 03582 1 0 0 PERMIT ,..... 10 *..+ See Comments Below REQUIREMENT INST MAX MG/L CONTINGENT ` GRAB FLOW, IN CONDUIT OR SAMPLE (03) ****** *• •*«• ..««*. THRU TREATMENT PLANT MEASUREMENT 0.199 0.394 0 1/7 RCORDR 50050 1 0 0 PERMIT 1.58 REPORT MGD "**'* " `*" *"•+ EFFLUENT GROSS VALUE REQUIREMENT 30DA AVG DAILY MAX CONTINUOUS RCORDR NAMEITITLE PRINCIPAL EXECUTIVE OFFICER I Certify under penalty of law that this document and all attachments were prepared under TELEPHONE DATE my direction or supervision in accordance with a system designed to assure that qualified Brian A. Watterson, P.G. personnel properly gather and evaluate the information submitted. Based on my inquiry of 970 870 - 2750 F Geologist the person or persons who manage the system, or those persons directly responsible for SIGNATURE OF PRINCIPAL O Otr to Z;7 gathering the information, the information submitted is, to the best of my knowledge and belief, OFFICER OR AUTHORIZED AGENT AREA CODE NUMBER YEAR MO DA true, accurate, and complete. I am aware that there are significant penalties for submitting Y TYPE OR PRINTED false information, including the possibility of fine and imprisonment for knowing violations. COMMENTS AND EXPLANA I ION OF ANY VIOLA I IONS (Reference all attachments here) OIL & GREASE SAMPLE REQUIRED IF VISIBLE SHEEN IS OBSERVED - SEE I.B.1.(D). DETECTION LIMITS - SEE I.E.3. SALINITY MONITORING - SEE 1.B.2. QUARTERLY SAMPLING INSTRUCTIONS I.C.9; REPORT RESULTS ON MARCH, JUNE, SEPT, & DEC DMRS. 30 DAY AVG IS HIGHEST MONTHLY AVG DURING PERIOD REPORTED. EPA Form 3320-1 (REV 3/99) Previous editions may be used PAGE 1 OF 2