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TR9PPSR MINING INC. ~~ March 15, 1991 CERTIFIED #P568141616 Mr. David Berry Colorado Mined Land Reclamation Division ~~~~d~~ 215 Centennial Bldg. ~~ 1313 Sherman St. Denver, CO 80203 MaR l ~ gat Dear David: tutined Land Subject: Technical Revision 54 (TR-54). Reclamation Division 1990 Annual Report, Appendix W, Sections 1-7 Trapper Mine's Annual Report for 1990 is composed of seven sections. Section 1.0 reports 1990 reclamation activity as specified in Section 2.04.13 of the Colorado Mined Land Reclamation Board Regulations for Coal Mining. All appropriate maps are enclosed. Section 2.0 ~_t .~u~a1 HydrologyRerpo ~a~nd~composed of nine subsections.~S~;~sel„¢ +~ ~„t~n"~??_9Ktsr~a_`, ~opo ' 11to,mocTtfy"~I;apper~s?groundwaier~'s"arn~ling4fre~que_ cy. 2.1 Climatological Data 2.2 Pit Dewatering 2.3 Mining Advancement and Ash Disposal 2.4 Monitoring Paints 2.5 Hydrological Data (Hydro-Engineering Inc. report) 2.6 Hydrological Trends 2.7 Spoil Spring Sampling 2.8 Motti~ne~ell_~bandonment Section 3.0 is a report on Trapper's drainageway reconstruction efforts 1987-90. It consists of a narrative segment describing our reconstruction methods and results as well as a map showing the locations of our drainageway reconstruction efforts minewide. In 1990, approximately 1,250 feet of drainage reconstruction was performed in a tributary to Johnson Gulch. Peak flow data from the 10-year, 24-hour parshall flume located in Coyote drainage are included. Section 4.0 is the recontoured spoil sampling section. This section includes site specific spoil analysis data and a map showing spoil texture and sample identification numbers for Ashmore pit only. / Section 5.0 is a narrative and map showing topsoil stockpiles constructed in 1990 and pro- posed 1991 topsoil stockpile locations. Additionally, the map has been updated to show all existing topsoil stockpiles minewide with appropriate identification numbers. The narra- P.0. Box 187 Crai Colorado 81626 g. (303) 824-4401