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characterize water quality and environmental problems associated with water development and supply facilities. 2. UTAH a. Sevier River Water Management Studies This study will continue in Fiscal Year 1991. A status report was completed in 1990. Included in the study is the installation of a system to accelerate data collection and the distribution of data to water manag- ers, the development of a system of computer graphics to facilitate data interpretation, and the evaluation or development of real-time models to assist decision-makers with water accounting and operation. The operat- ing models would be useful for water deliveries, minimizing flood damage, protecting aquatic habitat, improving water quality, and maximizing power generation. b. Utah Area Water Demand Model This study will continue in Fiscal Year 1991. A status report will be completed in early 1990, The study will develop an interactive computer model to be used by water managers and planners to forecast changing municipal and industrial water demands, to evaluate water conservation implementation strategies and to develop drought contingency plans. The model will be a critical element in developing long-term forecasts and prioritizing future water resource strategies involving system optimiza- tion and water conservation options and impacts, It also will assist in evaluating the short-term options necessary to operate better the existing urban infrastructure. H. RESERVOIR OPERATIONS Water supply conditions during water year 1990 have continued to be much below normal, the result of below-normal precipitation for the last four years. Stream flows are currently below normal in the northern portion of the basin but considerably above normal in the San Juan drainage. The soil moisture is still quite low and is expected to affect the quantity of next spring's runoff. Releases at each mainstem dam are currently near mini- mum levels. The conditions change from what is expected, adjustments will be made in operations to insure that mainstem reservoirs are kept at appropriate levels. 56