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VII-5 . lhe present source of springs supply very high qual ity water with no exces- sive concentration of any chemical and a hardness in the 85 ppm range. Field investigation from a geological viewpoint indicates that additional water can not be collected in the Nettle Creek Basin from new springs or galleries. Additional supply from the basin would have to be taken from <iurface water in Nettle Creek and would require treatment. It is estimated that with 0.4 mgd taken from the surface, total Nettle Creek supply would be increased to the 1.6 mgd range, which would be approximately 80 percent of the water in Nettle Creek in a dry year. The transmission line which trans- ports Nettle Creek water into the Town system has a capacity, if converted to a one gradient line, of approximately 1.6 mgd, very near the estimated production capacity of NEttle Creek. Nettle Creek is a significant and important water resource basin for Carbon- dale, but it is too limited for long range purposes which encompass growth and increased water use by Carbondale and environs. . There is 1 ittle recorded information with regard to actual water available in Nettle Creek; therefore, estimates based on a hydrological analysis of the basin have been used here. A monitoring program should be instituted by the Town to record actual production capabil ities of Nettle Creek in order to determine more precisely the 1 imits of this important supply. SURFACE WATER Thompson Creek The surface water in Thompson Creek is of relatively high quality, but in a dry year, the quantity of water available is too small to be considered a potential future water supply source. Prince Creek Prince Creek produces high qual ity water in <,ufficient quantities to be a good possible municipal supply. There are high capacity springs on Prince Creek that could be captured and put into the Carbondale system without .