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STATE OF CC)LORADO <br />DIVISION OF MINERALS AND GEOLOGY <br />Department of Natural Resources <br />1313 Sherman S[., Room 215 <br />Denver, Colorado 80203 <br />Phone: (303) 866-3567 <br />FAX: (303) 832-8706 <br />Inter-office Memorandum <br />COLORADO <br />D I V I S I O N O F <br />MIN & LS <br />GEOLOGY <br />RECLANgTION•NINING <br />SAFE?Y•SU ENCE <br /> Bill Owens <br /> Governor <br />to: File, 2004 Annual Hydrology Report, C-1980-001, The Pittsburg & Midu~~ <br /> Mining Co. execwve Director <br />from: Byron G. Walker Ronald W. Cattany <br /> <br />subject: <br />Review of 2004 Annual Hydrology Report, C-1980-001 Division Director <br />Natural Resource Trustee <br />date: July 11, 2005 <br />A 2004 Annual Hydrology Monitoring Report (Annual Hydrologic Report, AHR) for the Edna <br />Mine CDMG Permit No. C-001-80 was dated February 2005. It was submitted to the Colorado <br />Division of Minerals and Geology (Division), and was prepared for The Pittsburg & Midway <br />Coal Mining Company, by W WC Engineering. A number of items as identified below have been <br />brought to the attention of the operator in a review letter of adequacy. <br />Table of Contents <br />Rule 4.05.1(1) ............................................................................ <br />Rule 4.05.1(2) ............................................................................ <br />Rule 4.05.1(3) ............................................................................ <br />Rule 4.05.12 ............................................................................... <br />Rule 4.05.12(1) .......................................................................... <br />Rule 4.05.12(2) .......................................................................... <br />Rule 4.05.12(3) .......................................................................... <br />Rule 4.05.13(4) .......................................................................... <br />Rule 4.05.13(4)(a) ...................................................................... <br />Rule 4.05.13(4)(b) ...................................................................... <br />Rule 4.05.13(4)(c) ...................................................................... <br />Rule 4.05.13(4)(c)(i) .................................................................. <br />Rule 4.05.13(4)(c)(ii) ................................................................. <br />Rule 4.05.13(4)(c)(iii) ................................................................ <br />Review of Predicted Probable Hydrologic Consequences.,....... <br />CWQCCR 31 ............................................................................. <br />CWQCCR 31.11 ........................................................................ <br />CWQCCR 33.0 .......................................................................... <br />CWQCCR 41 ............................................................................. <br />Colorado Discharge Permit System ........................................... <br />................................................ <br />................................................ ..... i <br />.....2 <br />................................................ ..... 2 <br />............................................... ..... 2 <br />............................................... .....2 <br />............................................... .....3 <br />............................................... .....3 <br />............................................... .....3 <br />............................................... ..... 3 <br />............................................... ..... 3 <br />............................................... ..... 3 <br />............................................... ..... 3 <br />............................................... ..... 4 <br />............................................... .....4 <br />............................................... ..... 5 <br />............................................... ..... 6 <br /> 7 <br />............................................... ..... <br />............................................... ..... 7 <br />............................................... ..... 7 <br />............................................... ..... 8 <br />Rule 4.05.1(1) Surface and underground mining activities shall be planned and conducted to <br />Page 1 <br />Office of Office of Colorado <br />Mined Land Reclamation Active and InaRive Mines Geological Survey <br />