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The only other AVF identified in the vicinity of the Trapper Mine is Flume Gulch. JJo mining disturbance covered under the proposed 5-year permit terns is located within the Flume Gulch drainage area. Mining activities will not disturb any portion of the drainage area until the next 5-year permit term. In addition, because of the dip of the strata (see the Geology portion of this document), all ground water flow from the mine area is directed deep beneath all the small drainages in the vicinity of the mine. Therefore, the proposed mining operations in this 5-year permit term should not impact the Flume Gulch AVF. Based on the preceding discussion, the Division makes the following findings regarding AVFs in the vicinity of the Trapper Mine: (1) Surface coal mining and reclamation operations will not interrupt, discontinue, or preclude farming on alluvial valley floors. (2) Surface coal mining and reclamation operations will not cause material damage to the quality or quantity of water in surface or underground water systems that supply alluvial valley floors. (3) Surface coal mining and reclamation operations will be conducted to preserve, throughout the mining and reclamation process, the essential hydrologic functions of alluvial valley floors. AVF Monitori Because the potential for mining-related impacts to occur in the Yampa River and Williams Fork River AVFs is negligible, no hydrologic monitoring is required. However, the applicant has initiated hydrologic monitoring in Flume Gulch. The monitoring plan will be adequate to detect any mining-related impacts if inflicted upon the AYFs. VIII. Water Rights and Replacement (Rules 2.04.7(3), 2.05.6(3)(a)(ii Surface and ground water rights recorded with the State Engineer's office within the general area of the mine are summarized on Map 31 and discussed in Sections 2.7.5.4 (pp. 2-524 to 2-524,0 , 4.8.2.1 (pp. 4-223 to 4-2241, and 4.8.2.2 (pp, 4-224 to 4-2-26b) of the permit application. Trapper Mine holds permit No, 1°872-F for Well GD-1 (see Map 52) to supply domestic and industrial water for the mine's operation. This well is completed in the Twentymile sandstone, Trapper Mine has also permitted their open pits as a well (No. 22140-F) since ground water collects in the pits and dewatering is periodically required. Because some beneficial use is made of this water as well as some evaporative loss occurs, an augmentation plan has also been approved to replace this water from surface water rights owned by the mine. ,y/ During the first permit term, the Division app ed minor revision allowing the mine to employ a series of expendable well~pdip from and on strike with the advancing pits to dewater the bedrock sectfo;? being drained by the pits and to eliminate the need to periodically pump the pits themselves. The locations and completion data for these wells will be supplied to the division -20-