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Flood irrigation is very prolific in these two valleys. Eleven mayor irrigation ditches were identified in the Ward Creek valley, and six mayor ditches were identified in the Williams Creek valley (See Map 8 of Volume 8). In addition to the main ditches identified, numerous lateral ditches exist to distribute the water from the mayor ditches. Water for these irrigation systems is provided, in part, by the Granby Ditch, which transports irrigation water from reservoirs on Grand Mesa. An exact breakdown of how much water comes from each source; the reservoirs or the natural drainages, has not been provided. The applicant has not provided an assessment of the capability of the area for flood irrigation, but such an assessment is not necessary, since the only areas that meet the geomorphic criteria are closely associated with existing flood Irrigation systems. The applicant has examined both vegetation information and the ground water studies with regard to the potential for subirrigation. The vegetation survey indicates that the only vegetation species which appear to take advantage of the alluvial ground water to any extent are the hardwoods (which have no agricultural significance to the area). The subirrigated hardwoods are found 1n areas immediately along Ward and Williams Creek, the first and second terraces, and the lower fan surface near the streams. The ground water data indicate that the alluvial water levels are generally 10 to 15 feet below the land surface. The ground water levels are highest immediately adjacent to the streams and near irrigation ditches due to leakage. The capillary fringe may raise the available water levels, but this was not indicated in the vegetation survey. Based on the information provided by the applicant, the areas designated as Qaf, Q+1, Q+2, and Q+3 along the Ward Creek and Williams Creek valleys are designated as alluvial valley floors because of flood irrigation capability. The applicant has indicated that the agricultural practices along the two valleys are predominantly native pasture and hay for stock. There are also some apple orchards in the area, and some fields in small grains (e.g. wheat, oats, and barley). The applicant has provided no specific information concerning the agricultural significance of the alluvial valley floor to farming. Therefore, the areas designated as alluvial valley floor are assumed to be agriculturally significant, and the Division will make all three alluvial valley floor findings for the Ward Creek - Williams Creek alluvial valley floor. Alluvial Valley Floor Findings Pursuant to Rule 2.06.8, the Division is required to make specific written findings on the effect of mining on all AVF's within the permit and adjacent area. The required findings are presented below. -20-