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;i <br />• <br />s <br />LJ <br />7'NIBNTYMI6B <br />CoAI. COMPANY <br />A Cyprus Amax Company <br />March 6, 1998 <br />1111{IIINIIIIIII III <br />999 <br />Janet Binns <br />Environmental Protection Specialist <br />Division of Minerals and Geology <br />1313 Sherman Street, Room 215 <br />Denver, Colorado 80203 <br />RE: PR04 Adequacy Responses to the DMG letter of February 27, 1998 <br />Permit No. C-82-056 <br />Dear Ms. Binns: <br />RECEIVED <br />MAR p g 1898 <br />Division of Minerals & Geology <br />The following present TCC's responses to the concerns presented in the above referenced <br />adequacy letter. The response numbering follows that presented in the Division's letter. <br />Concern i 5 -The text has been revised to reflect that the railroad will be not be undermined by <br />Panel 5 Right. <br />Concerns 19 and 21 -The text has been modified to explain the relationship of the residences to <br />the proposed mine plan. <br />Concern 28 -The text has been modified to reflect the language proposed by the Division. <br />Concern 33 - A wpy of the transect data is attached for the Division to review and it can be <br />inserted into Exhibit 7j. <br />Concern 34 -The text, page 2.06-25.4, has been modified to show that TCC will continue to use <br />its existing surface and alluvial monitoring stations along Fish Creek to determine downstream <br />impacts on the Fish Creek AVF. <br />Concern 43 -The text has been revised to show that the mine, and its laboratories, follow the <br />methodologies presented in "Standard Methods for the Examination Of Water and Wastewater" <br />or the methodology in 40 CFR 136 and 434. <br />Concern 44 <br />(a) -The dates of collection and analysis of the samples are provided on page 2.03-3.3 of <br />the text. <br />(b) -The dates of collection and analysis of the samples are provided on page 2.03-3.3 of <br />the text. <br />(c) -The dates of collection and analysis of the samples are provided on page 2.03-3.3 of <br />the test. <br />Twentymile Coal Company <br />29515 Routt County Road N27 <br />Oak Creek, Colorado 80467 <br />970-879-3800 <br /> <br />