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PQ~y <br />• PEABODY COAL COMPANY <br />W~~torn Dlvl~lon <br />T~ 13 <br />February 12, 1988 <br />Mr. Peter O'Connor <br />Colorado Mined Land Reclamation Division <br />423 Centennial Building <br />1313 Sherman Street <br />Denver, CO 80203-2273 <br />RE: Permit C-80-005, Technical Revision No. 13, Revised <br />Hydrology Mon itoring <br />Dear Mr. O'Connor: <br /> <br />1300 Soulh Yale <br />Flagalell, Arizona 66001 <br />(602( T7e~5253 <br />On August 28, 1987 the Division sent Peabody the results of <br />its review of the Seneca II 1986 Annual Hydrology Report <br />(AHR). In the AHR Peabody had requested three revisions to <br />the hydrology monitoring program. Attached please find <br />three copies of the following: <br />1) Responses to Questions 1 and 2 from CMLRD's letter of <br />August 28, 1987 which are designed to be inserted into <br />• the front of the 1986 AHR. <br />2) Revised Pages 7-77, 7-157, 7-174 for Tab 7, Volume 4, <br />of the Seneca II Permit Application Package in <br />response to Items 1 and 2. <br />3) An application form and proposed Public Notice for <br />this Technical Revision. <br />4) A new tab for Technical Revision No. 13 be inserted in <br />Volume 13, Tab 15. <br />u <br />The third question, pertaining to a request in the 1986 AHR <br />to modify the frequency of sediment level surveys in <br />sediment ponds, has been tabled until Peabody develops <br />additional information to document the request. Until such <br />time as this data is available, Peabody will conduct the <br />required surveys. <br />If you have any <br />Technical Revision <br />or myself. <br />sk <br />att. <br />questions concerning this request for <br />No. 13, please contact either Ted Smith <br />Sincerely, / ? <br />~_~~, ,.~j~:_: , <br />~ ~ ,: <br />~ James S. Lunan <br />Manager - Permits <br />