OCR Text |
Show of Delta, and Roosevelt Hot Springs, Beaver County, 12 miles northeast of Milford ( Fig. H- 6). A detailed investigation to determine the potential of these KGRA's would be justified. The areas classified as PVGA's by the U. S. Geological Survey would merit a reconnaissance study, particularly those in areas of tertiary and quaternary volcanic activity in western Utah's desert area. These areas include the vicinity of Nells south of Delta, Thermo Springs and Minersville Springs in Beaver County, Monroe Springs in the Sevier- Sanpete area, and Midway Hot Pots in the Wasatch Range area, and the southern part of the Tintic Mining District in the Eureka area. The least attractive prospects are the Snake Valley area, the Hurricane area, the Panguitch area, and most of the Wasatch area. Thermal spring waters in the Wasatch area, with the exception of the Midway Hot Pots area, are associated solely with fault zones and their waters are heated by the normal geothermal gradient. Since the two KGRA's are located outside the Bonneville Unit area and because very little is known of this potential, a geothermal source is not considered to be a viable alternative source of water within the time frame of the needs. The estimated cost of product water associated with a geothermal source would be similar to cost by desaliniza- tion or about $ 150 to $ 200 per acre- foot, not including Bonneville Unit incurred costs. ( 6) Other Water- Saving Measures In water planning and use, numerous conservation and reuse measures could be implemented. Some of these might be considered as alternatives to importation of water from the Uinta Basin. In all water- resource planning consideration should be given to such things as phreatophyte control, control of evaporation resulting from water impoundment, increased efficiency of present and future water systems, pricing of water to restrict wasteful uses, recycling and reuse of sewage effluents including tertiary treatment, and better management techniques. The potential for development of some of these possibilities is discussed in the following paragraphs. ( a) Phreatophyte Control Phreatophytes are plants that generally obtain their water supply from the zone of saturation. This is done either directly or through the capillary fringe. Phreatophytes in the Bonneville Unit area include wet meadows, nonrotated pasture, salt cedar, cottonwood trees, 522 |