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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. D.L. Lobb, Operations Manager <br />NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) MAJOR <br />DISCHARGE MONITORING REPORT (DMR) (SUER JC) <br /> F - FINAL ROUTT <br /> MINE 1, POND F TO FOIDEL CREEK <br /> <br />000027154 007 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 />oB 06 01 TO 08 06 30 <br />-Sj 4\iu <br /> QUANTITY OR LOADING QUALITY OR CONCENTRATION FREQUENCY SAMPLE <br />PARAMETER NO. OF TYPE <br /> AVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX ANALYSIS <br />CONDUCTIVITY SAMPLE ...... ,.,.,, ....., (11) <br /> MEASUREMENT 1316 1560 0 5/91 GRAB <br />00094 1 0 0 PERMIT ... " "*••' ... REPORT REPORT UMHO/CM OTRLY' <br />EFFLUENT GROSS VALUE AVG- QRTR-Mx - ° =GRAB' <br />pH SAMPLE (12) <br /> MEASUREMENT GRAB <br />00400 1 0 0 PERMIT •.. 6.5 9 SU TWICE / <br />EFFLUENT GROSS VALUE REQUIREMENT MINIMUM MAXIMUM PER MO GRAB <br />SOLIDS, TOTAL SAMPLE (19) <br />SUSPENDED MEASUREMENT NA NA NA NA NA <br />00530 0 0 0 PERMIT """' "•'•, " ' REPORT <br />MG/L <br />ONCE 1 <br />SEE COMMENTS BELOW REQUIREMENT 30DA.AVG -: DAILY MAX -'. PER MO'.. GRAB <br />SOLIDS, SAMPLE .... ,, .**... .,, .. (19) <br />SUSPENDED MEASUREMENT GRAB <br />00530 1 0 0 PERMIT '" "*' ' ••,••• ...."' 35 70 MG/L ONCE/ <br />EFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG -DAILY MAX PER MO" GRAB' <br />SOLIDS, SETTLEABLE SAMPLE "^" <br />(25) <br /> MEASUREMENT NA NA NA NA NA <br />00545 0 0 0 PERMIT ` -REPORT REPORT MUUhr OTRLY <br />SEE COMMENTS BELOW REQUIREMENT - 30 DA AVG DAILY MX <br />GRAB <br />LID E LEAB SAMPLE ...... "'"' **"** (25) <br /> MEASUREMENT < 0.1 < 0,1 0 1/91 GRAB <br />00545 1 0 0 PERMIT ..«,.. <br />REPORT <br />0,5 <br />MUUhr <br />_ OTRLY `- <br />EFFLUENT GROSS VALUE REQUIREMENT 30 DA AVG DAILY MX GRAB . <br />IRON SAMPLE ••,•,• ",•" ••,'•' <br />(28) <br />TOTAL RECOVERABLE MEASUREMENT GRAB <br />00980 1 0 0 PERMIT <br />1000 <br />REPORT ° <br />UG / L <br />ONCE/ <br />EFFLUENT GROSS VALUE REQUIREMENT - 30DA AVG ,, ;.. DAILY MX PER MO : GRAB <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 property gather and evaluate the information submitted. Based on my inquiry of <br />1 16 970 870-2750 <br />Geologist the person or persons who manage the system, or those persons directly responsible for 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 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 />VVIVIIVICIV I J n??v ?nr ?ni?r?? iv?v v? r+iv ? v?v?n? ?v?.J tnc?ci c?n.c a?? o??a?.i ii??c?iw i?c? <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 I.B.1.D, PG. 11. <br />EPA Form 3320.1 (REV 3/99) Previous editions may be used <br />PAGE 1 07 3, <br />00273/010320-1132 Z.