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I I I I I I I I I I I I I I I I I I I 2. Future Status of Water Supply Source The previous section has described the existing conditions in the Nunn area in relation to the quantity of water supplied by the two shallow wells and one deep well which supply the Town's water. Also, the water quality, specifically the nitrate concentration for numerous water sources in 'the Nunn area, have been identified. There are several possible solutions to solving the water quality problem which exists in the Town of Nunn. They are as follows: a. Locate another source of low nitrate water, preferably a shallow well, which can supply the needed water supply, b. Treat the groundwater from the existing shallow wells to remove the nitrate, Two possible treatment alternatives to remove the nitrates are (1) a reverse osmosis system, or (2) an ion exchange system. c. Locate a source of surface water supply for the Town. Initially a fourth possibility existed and that was the assumption that the existing deep well could be improved or repaired to enable a greater production capacity. However, this alternative has already been discounted as viable due to the low transmissibility or permeability of the Laramie/ Fox Hills formation which would produce only 5 to 15 gpm of water which is insufficient for the Town's needs. In analyzing the results of the water quality tests on nitrate concentration throughout the area, it has been found that there appears to be two separate shallow aquifers in the vicinity of Nunn, ,one of which contains less in-situ nitrates than the other, In,the data collection phase of the project, a considerable amount of test hole data was found for the area near Nunn, In the early 1960's, the U.S.G.S. (Reference 7) drilled a number 17