OCR Text |
Show J Ashley Springs trilled 63S CU WCO tfrecitfmenfl sitfe In a meeting last Thursday the irectors of the Central Utah Water onservancy District (CUWCD) T iminated the Ashley Springs site from I ' 5 plan to build a Ashley Valley Water J urification Plant for the Vernal area. The building of a treatment plant by ie CUWCD at the proposed Doc's each site was met by disapproval last londay at a CUWCD hearing in Ver- 1. Persons protesting the Doc's i 'yeach site suggested the treatment ant be built at Ashley Springs to in-gravity in-gravity flow of water to all areas 1 Ashley Valley. "We didn't definitely vote to build the ' ant at the site nearest Vernal, but we d vote not to build it at the site near shley Springs," Robert Hilbert, lairman of the engineering and operations committee, said. The resolution passed by the board of directors said that the district would not build or participate in the building of a water treatment plant at or near the Ashley Springs to treat only Ashley Springs water. Vernal City and the Uintah Water Conservancy District have favored building the water treatment plant at Doc's Beach, but engineers for the Ashley Valley Water and Sewer Im-Drovement Im-Drovement District contend that unless there are substantial changes in the distribution system, over 50 percent of the water would have to pumped. "As the supply system to reservoir tanks now exist," says Nelson Marshall, Mar-shall, consulting engineer for the AVWSID and Maeser Improvement District and local engineering firm president, "all of the treated water from the 'Vernal Treatment Plant Site' will have to be pumped to an elevation high enough to fill the highest tank and to overcome friction losses. Because the distribution system to the tanks is all connected together and there is no way to put two or more pressures in one pipe, therefore, the pressure in the reservoir distribution pipe must always be high enough to make water flow to the highest point of delivery, or the highest tank." The water tanks lower than the Vernal Plant Site are the Maeser Tank, Ashley Tank and Davis Tank. Tanks that are higher are the Asphalt Tank, (Continued on page 9) Treatment site - - - 'Continued from Page 1) now completed, the Chocolate Rock Tank and a new Davis Tank, both of which are to constructed by Maeser and the AVWSID. Vernal City is considering con-sidering lower tanks at the Vernal Treatment Site and below in the Ashley area. Because of these factors, Marshall proposed that two treatment plants be constructed to reap the advantages of both sites. "A single plant with all the advantages ad-vantages of both plants would be much better however, if only one plant is built right now, today, it should be the upper plant," Marshall says. According to Russ Vernon, engineer for Uintah Engineering, the cost of constructing a more costly treatment plant at Ashley Springs and implementing im-plementing gravity flow, would out weigh the initial advantage of a less costly treatment plant at the Doc's Beach site and having to pump the water. Another resolution passed by the CUWCD provided that the firm of Horrocks and Corollo do the engineering for the treatment plant's design. The directors approved the resolution, but to assure immediate work to be done for pilot studies required for the plant's design, did so without designating a location for the plant. The pilot studies will determine if direct-filtration can be used to treat Red Fleet and Steinaker water in that direct-filtration eliminates much of the cost of conventional treatment required at certain times of the year for Ashley Springs. Culinary water supply from Ashley Springs does not meet standards of the state or federal government, says Alvin Kay, president of the Uintah Water Conservancy District's board of trustees. Location of the treatment plant at Doc's Beach would provide flexibility for three sources of water from Ashley Springs. Red Fleet Reservoir and Steinaker Reservoir, to be treated possibly with a direct-filtration direct-filtration plant, saving several million dollars for construction, Kay said. CUWCD director asked that the Uintah district office to ascertain as soon as possible which cities and other areas in the district desire treated water from the new plant. |