| OCR Text |
Show declines in artesian pressures after 20 years of pumping. A 50 percent increase would cause pressure declines of nearly 30 feet after 20 years of pumping. Chemical quality degradation has not been a problem in most of Utah County. Goshen Valley is an exception. Serious salinity and nitrate problems, as well as declines in water levels, are being encountered there. A few wells have also had taste and odor problems. Juab Valley Water levels in Juab Valley are continually declining with the present level of development. Additional development would cause further declines which would drastically reduce the discharge from flowing wells and Burraston Pond Springs. Burraston Pond Springs supply a major portion of the inflow to Mona Reservoir. Any reduction of this inflow would be opposed by the water users. Sevier River Area Because of the complex interrelationship between the groundwater and surface water systems in the Sevier River area, any increase in groundwater withdrawals causes a proportional decrease in streamflow. These effects on downstream users have caused legal restrictions to major groundwater development. To lower the groundwater table and reduce phreatophyte waste, various proposals have recently been made to increase the water supply by increasing groundwater pumping. Because of the uncertainties associated with such salvage schemes, these proposals may not achieve the desired salvage, but may only reduce river flows. Uinta Basin The small size of the aquifers in the Uinta Basin is the greatest restriction to future well development; their ability to accept recharge and transmit it to wells is limited. Some water has been developed from bedrock aquifers, but well yields have been extremely small, with high concentrations of dissolved salts. 498 |
