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111 IIIIIIf II1111I11` <br />ass <br />Mountain Coal Company <br />West EIk Mlne <br />Post Office Banc 597 <br />Somerset, Colorado 81434 <br />Telephae 970 929.5015 <br />Fex 9709295595 <br />April 8, 1997 <br />Mr. Michael Boulay <br />Colorado Division of Minerals and Geology <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />REC~~vFo <br />'a'k ®g ~, <br />t)fvision o(Minerals a laeolo9Y <br />RE: 1993,1994, 1995 Annual Hydrology Reports; West Elk Mine; PerTrtit No. C-80-007 <br />Dear Mr. Boulay: <br />Please find enclosed laboratory data sheets which were requested by the Division during the <br />review of the 1994 and 1995 Annual Hydrology Reports (AHR) and noted on the Division's <br />memo to file dated March 6, 1997. Also enclosed are revised tables to be inserted into the AHRs. <br />As Mountain Coal Company (MCC) was gathering this information, a few additional errors <br />(primarily decimal placement), were discovered in the tables, and the tables were revised. <br />The Chain-of-Custody forms provided note a "long list", which refers to the baseline list and a <br />"short list", which refers to the required analyses following collection of one year of data. The lab <br />has copies of both lists and is familiaz with this reference. <br />In regards to the Division's memo to file dated March 6, 1997, MCC would like to clarify a few <br />statements made in the memo. <br />• Please note that there was no flow in Sylvester Gulch, Upper Dry Fork, or Lick Creek during <br />the third sample window of 1994 to collect field parameters or laboratory parameters. The <br />memo incorrectly states that field parameters were collected during the third sampling period. <br />• Please note that field pH, specific conductance, and TSS were provided for the North Fork <br />Upper and Lower stations for all three sampling periods in 1994. These analyses were not <br />provided by the laboratory. <br />• TSS is not considered an appropriate analyte for ground water and has been removed from the <br />momtonng program. <br />• All of the laboratory data sheets are available at the mine office. <br />