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M1V-VVN I INtN I n1tbLPUKUtb9 ING. <br /> PRODUCERS OF THE FAMOUS COAL BASIN COKING COAL <br /> BOX 158 <br /> CARBONDALE, COLORADO 81623 <br /> MID-CONTINENT RESOURCES INC TELEPHONE <br /> 245 PIAINFIELD ROAD-SUITE 220 (303)963-2MI <br /> WILL BROOK ILLINOIS W521 TW>< <br /> October 29, 1984 910°�6�x <br /> 4"72. <br /> Mr . Jim Herron <br /> Mined Land Reclamation Division <br /> 423 Centennial Building <br /> 1313 Sherman Street <br /> Denver, Colorado 80203 <br /> Re: Minor Revision - Catchment Basins Nos. 1 and 4 Mines <br /> Dear Jim, <br /> Enclosed are some maps and descriptions of the catchment basins <br /> constructed this fall--three at No. 1 Mine and one at No. 4 <br /> Mine. . <br /> The three basins at No. 1 Mine range from 1. 0 A.F. to 1 . 3 acre <br /> feet (80' x 120' x 61 ) and are designed to discharge in series <br /> (see Arrows on map) . We think these catchment basins will be <br /> of benefit in the reduction of probable sediment from the old <br /> road and pad fills adjacent to No. 1 Mine. <br /> One basin (80' x 120' x 61 ) was constructed at the toe of the <br /> old north fill slope at No. 4 Mine. This location is also at <br /> the toe .of one of the newly constructed test sections for mine <br /> pads. We feel that this basin will fill a twofold purpose : <br /> that is , reduce probable sediment from the old fill section and <br /> reduce sediment from the newly constructed pad fill test <br /> section. See enclosed map. <br /> If you have any questions, please call me. <br /> Sincerely, <br /> J-,Environmental Coordinator <br /> Coordinator <br /> DWBowman:ms <br /> Enclosures: Two maps <br />