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piezometric surface over and immediately adjacent to the subsided area is a well known and expected consequence. Quality: As stated in the permit, °In summary, the impact of mining on the groundwater hydrologic system (flow, TDS, TSS, total iron, pH and total manganese) will be minimal, primarily because of the limited amount of groundwater which is naturally found in the area." This statement is further supported by the monitoring results from monitoring well 32-7M (attached). Hydrologic Classification: As discussed by 5 CCR 1002-41, regulation No. 41, The Basic Standards for Ground Water the bedrock groundwater in the vicinity of the Deserado Mine should be classified as "Limited Use and Quality". This classification is derived from the description of "specified area" contained in Section 41.3(C) and Section 41.4(B)5.c. 'The criteria specified in sections 41.4(8)1, 2, 3, or 4 are not met." Interpretation of Section 41.4(8) is driven by the definition of "specified area" found in Section 41.4(C) which relies heavily on the presence, extent, and nature of existing and reasonably expected future uses of ground water. Section 41.4(6)1 pertains to the "Domestic Use -Quality' classification. The bedrock groundwater is not used for domestic purposes and future use for domestic purposes is not reasonably probable. Factors limiting potential domestic use include the depth to groundwater, poor water yield, marginal untreated quality, low population density, lack of private land upon which to develop residence creating a demand, and the availability of water from an alternate water source (White River). Section 41.4(6)2 pertains to the "Agricultural Use -Quality' classification. Again, depth to groundwater, poor water yield, and marginal quality limit this use. Fluoride standards for agricultural use are frequently exceeded. In addition, the climate of the area is very dry limiting the agricultural use of the lands. Except for small amounts of irrigated croplands next to the White River the only other agricultural use is limited livestock grazing. Considering the low carrying capacity of the rangelands it would not be economical to drill bedrock wells to supply water to livestock. It would be more economical to haul water from the White River or artesian wells at the base of Blue Mountain or rely on surface water impoundments to supply water for the livestock. Section 41.4(8)3 pertains to the "Surface Water Quality Protection" classification. The underground mining activities at the Deserado Mine will not adversely impact surface water quality. Thus, this classification does not pertain to the issue at hand.