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Show Table 17- 1 PRESENT AND PROJECTED MUNICIPAL AND INDUSTRIAL WATER USE Water- use 1995 ( acre- feet) 2020 ( acre- feet) Residential Commercial/ Institutional Industrial Private Domestic Self- Supplied Industrial Secondary: Municipal Industrial Total M& I 164,600 77,200 15,400 24,600 26,500 10,000 13.200 331,500 Source: Wasatch Front Demand and Supply Model a: Includes unmetered public use and losses ( ie. watering parks and firefighting) 261,500 135,000 25,300 20,000 26,500 15,000 13.200 496,500 estimates it saves 75 acre- feet of water annually. For West Jordan parks, that represents a water savings of about 20 percent over the past few years. Consequently, programs that improve efficiency of large landscaping systems can have a positive impact on water consumption. Residential Water Conservation - Residential water in Salt Lake Valley can be conserved in a number of ways. Water- efficient appliances such as low flow toilets and shower heads are only required in new construction. And most wholesale and retail price structuring provide little incentive for water conservation. The most inefficient use of residential water is over- watering of lawns and gardens. Education coupled with price incentives could accomplish a lot in terms of conserving residential water. Commercial Water Conservation - Opportunity for water conservation in the commercial sector is limited. Studies suggest that commercial users are no less efficient than other industrial water users. In fact, some commercial endeavors, such as laundries, have already implemented water conservation to reduce energy costs. It is likely, however, water pricing incentives and pretreatment wastewater requirements would further motivate commercial businesses ( users) to re- evaluate their water conservation efforts. Industrial Water Conservation - Approximately half of the basin's industrial water is taken from public water systems with the balance coming from private sources. This is primarily because the largest industrial water user, Kennecott Utah Copper, has a self- supplied water system and an extensive water recycling program. Water pricing incentives will likely have a positive impact upon industries which receive water from public water systems. 17.4 Conservation Methods and Strategies A wide range of water conservation methods have been employed in various regions of the country. The lessons learned in other states can be useful to Utah. However, it should be kept in mind the expected outcome can be affected by differing circumstances. Wasteful municipal water use is costly The following paragraphs provide a brief description and discussion of the conservation methods and 17- 3 |
