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'14 f III IIIIII'11111I~II 999 STATE OF COLORADO DIVISION OF MINERALS AND GEOLOGY Department of Natural Resources 1311 Sherman 51 ,Room 21 S Denver, CO 80207 Phone. (3071 866-3567 FA%.1303)872-8106 February 15, 1994 Mr. Marcus Middleton Cyprus Empire Corporation P.O. Box 68 Craig, CO 81625 RE: Eagle 5 & 9 Mines, (C-81-044); Permit Renewal No. 2. Division's Replies to Adequacy Responses. Dear Mr. Middleton: oe cow ,~~ 4 '~ ~" Ruy Rnmr~ Guvemo~ Mlrhael8 Long Dinsion Dbeaar It was nice to meet you on January 21, 1994 during our discussion of plans for the Okie Plaza Well and other outstanding issues involved with the Eagle No. 5 and 9 permit. Our groundwater hydrologist has been able to review the partial responses Cyprus Empire Corp. (CEC) provided in response to the Division's adequacy letter dated September 10, 1993. The Division's reply to CEC in regards to these responses are as follows: (The numbering is consistent with the Division's adequacy letter of September 10, 1993 and CEC's response received January 21, 1994.) II. Annual Hydrology Review B. The response to this concern is adequate and will be relevant only until the Okie Plaza is mined through in 1994. III. Renewal Application Review B. 6. The response to this concern is adequate. Please be reminded that the Division still needs to receive the revised pages 2.05.6-14 and 2.05.6-13. 11. The fourth paragraph on page 2.04.7-2 of the PAP needs to be clarified so that the reader understands that the source of the drainage to the mine workings is only the Middle Sandstone. The statement that currently appears in the PAP, "This decline is probably related to drainage of the sandstones to the No. 5 mine workings", which immediately follows a statement that "Ground water levels have declined in both the Middle and Trout Creek Sandstones", implies that the drainage to the mine workings is from both of the sandstone units.