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5731 State Highway 13 <br />Meeker, Colorado 81641 <br />(970)824-1572. <br />(970)82434591=AX <br />~~•. <br />James A. Kigec, . <br />Senior Environmental Engineer <br />July 19, 1996 <br />Ms. Erica Crosby <br />Environmental Protection Specialist <br />Colorado Division of Minerals and Geology <br />215 Centenslial Building ' <br />1313 3hernan Street <br />Denver, Colorado 80203 <br />RE: Colowyo Coal Company L.P. <br />Permit C-81-019 <br />Supplemental Taylor Creek Sprang and Seep Survey <br />Dear Ms. Crosby: <br />nrnCil/~~ <br />~u~ z z teas <br />Divislpr of ral„rra~,~ 4 .. <br />..~.` f <br />As you are aware Lolowyo had agreed to conduct a supplemental spring and seep survey on the west <br />facing hillside east of the Segment of Taylor Creek located between the West Pit Pond and East Taylor Pond. <br />The area aieo happens to 6e located west of the West Pii Fill and north of the initial West Pit development iow <br />~~ wall. <br />The results of the'survey would have supplemented the information currently contained ip the Permit <br />(see the Leonard Rice report and Map 32 Surface Water and Groundwater Quantity and Quality. Sample Sites by <br />Investigaticn Near Colo~.vyo Mine,1.975 - 1981, for additional information). These earlier studies had found no <br />springs or seeps occurring in the subject area. <br />On June 12, 1996, Colowyo conducted the spring and seep survey. • We found no spring or seeps iq the <br />subject area. The naturally occurring hillside slump (approximately 6 acres in size) above Taylor Creek was <br />also investigated. This hillside slump' occurred in 1984 during abnormally high regional precipitation patterns. <br />We found no surficial evidence of spring and seeps in or azound .the slump area. Minor ponding of water may <br />now occur in low, depressed areas of this natural slump area, dependent on local moisture conditions, but such <br />an occurrence appears to be a function of surface runoff collection rather than a function of a spring or seep: <br />Please contact me if.you require any additional information regarding this matter. <br />Sincerely, <br />~'~ <br />J mes A. Kiger <br />Sr. Environmental Engineer <br />xc: R.G. Atkinson <br />K.A. Wolf <br />Files <br />