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iiiiiiiiiiiiiiiiiii 999 STATE OF COLORADO MINED LAND RECLAMATION DIVISION Department of Natural Resources 1313 Sherman St., Room 215 Denver, CO 80203 303 866-3567 FA%:303 832-8106 DATE: March 20, 1990 T0: Berhan Keffelew of ~°~o ~~ es ~~~~s+ .~ ~. ~ ra 76 ~ Roy Romer, Governor Fretl R. Banta, Division Director FROM: Tony Waldron RE: Rimrock Adequacy Requirements for Permit Application (C-89-074) The following comments refer to the adequacy responses submitted by Rimrock Coal Company. In conjunction with these responses, there may be additional adequacy questions which will require supplemental information from the operator. Section 2.04.9(1)(c) - Soil Resource Information The information provided is a major improvement over the original information and will be suitable for determining the extent of the soil available for reclamation. However, for the purpose of a complete and comprehensive permit application with adequate baseline date and maps, the operator should provide a map which delineates the extent of the ayon and capulin soils. The map submitted uses range site descriptions which apparently correlate with the soil types. I think it would be more appropriate to show the soil delineations with soil unit names attached instead of range site descriptions. Also, the SCS in Trinidad has informed me that the "Basalt Breaks" range site should be "Cobbly Foothills" instead. Therefore, on the soils map the "Basalt Breaks" alias "Cobbly Foothills" should be ayon soil type and the "Loamy Plans" should be the capulin soil type. The SCS also submitted additional description information concerning the soil type, and range sites which probably should be inserted into the permit as baseline information. Section 2.04.12 -Prime Farmland Investigation The operator submitted the required documentation for this section.