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2.04.7 (1) (a) the trarLSmissivity of this material, where the. saturated thickness •is 100 feet, would be on the order of 1000 to 10,000 gallons per day per foot. The variance in transmissivity would be dependent upon the amount of clay and other fine material within the formation. A properly designed and constructed well fully penetrating l00 feet of this glacial material, could be expected to yield between 25 to 250 gallons per minute. Water quality in this glacial alluvial aquifer is not fully k~{own. The aquifer is, however, recharged directly by perennial, spring fed streams, specifically Williams Creek, P:ard Creek and Cottonwood Creek. All of these supply good quality water as recharged to the aquifer, indicating that the aquifer should also contain good quality water. It is known that a number of wells penetrate this aquifer and the water is utilized directly for domestic potable supply. The only accurate quality data from the shallow aquifer in the area is an analysis from the Hodges Well located in Section 1. The analysis is included in Figure 2.04.5-6, and was obtained .from records of the U.S. Geological survey. The shallow alluvial water is acceptable for direct potable consumption, and meets all recommended health standards, Specific well log completion information from wells in the Red Canyon #1 Mine and proposed #2 tfine area is not available. A complete list of all registered wells in the area of the mine permit area is given in Figure 2.04.5-1. The Geology Map, 2.04.5-1, and the Bedrock Configuration D1ap, 2.04.5-2, give the total depth and location of other wells in the area, but no logs are available to determine precisely which. aquifer these wells penetrate, except for the Hodges well and the Lasater well. Refer to Figures 2.04.5-6, 2.04.5-7, 2.04.5-8, 2.04.5-9, 2.04.5-10, and 2.04.5-10a. ~ The only wcll~ which appear to penetrate and utilize aquifers which would be affected by mining the "D" and "E" coal seams are limited to the t•7att and Rodgers wells in Section 12 and the Laster ~nd Cargill well located in Section 11. These wells, may in fac4, produce water from the two coal seams. However, effects of mining REVIS°D Hay 8, 1981 5g `" •, ~.