OCR Text |
Show increase erosion somewhat, except during low flow when no additional erosion is anticipated. The amount of erosion which should be ascribed to the additional streamflow cannot be readily determined, but it is expected that it would be small compared to that resulting from the natural flow. § .' Snow Removal Since seeding of winter orographic storms affects the duration of such storms, some increase in snow removal costs can be anticipated. The magnitude of the increase cannot be estimated, but officials of the Colorado Highway Department indicated that the additional cost would be insignificant for clearing highways in Colorado. In small mountain towns in the project area or downwind of it, the cost of removing additional snow could be a matter of some concern, since these towns usually have limited snow- removal budgets. ( h) Desalting of Brackish Waters ( a) Description of the Alternative Desalting of brackish water is a potential source of municipal water. The Bear, Weber, and Jordan Rivers are brackish entering the Great Salt Lake and represent a suitable source of water for a desalting plant. The cost of producing fresh water from brackish water in large quantities is being reduced with improved technology, but it is not yet competitive with the cost of water from surface or groundwater sources. A desalting alternative would consist of a 100- million- gallons- per- day electrodialysis desalting plant located at Little Mountain on a 30- acre site. Feed waters would be provided by transporting flows from the Weber and Bear Rivers through a channel along the lake edge to a 230 c. f. s. pumping plant and a 500- foot- long discharge line, 6 feet in diameter. A h" J. 3- mile- long pipeline from the plant to western Salt Lake County, with a 155 c. f. s. capacity booster pumping plant, would be required to deliver the product water to the existing distribution lines. 516 |