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<br />USBRlMWD SALINITY MANAGEMENT STUDY <br />FINAL REPORT <br /> <br />Table 2-5 lists items sensitive to salinity changes. <br /> <br />T bl 2 5 B <br /> <br />f' II <br /> <br />c <br /> <br />w <br />Ul <br />CD ..- <br />CD <br /> <br />a e - ene It mDact atel!ones <br />RESIDENTIAL COMMERCIAL AGRICULTURE <br />Water pipe Sanitary Nursery products <br />Water heater Cooling Cut Flowers <br />Faucet Irrigation Strawberries <br />Garbage disposal Kitchen Misc. Vegetables <br />Clothes washer Laundry Citrus <br />Dish washer Miscellaneous Avocados <br />Bottled water purchase Pasture/Grain <br />Water softener WATER UTILITIES Vineyard <br /> Water Treatment Deciduous <br /> Water Distribution Field <br />WATER RECYCLING INDUSTRIAL GROUNDWATER <br />Direct Groundwater Process Water Direct Groundwater <br /> Recharge Cooling Towers Recharge <br />Indirect Groundwater Boilers Indirect Groundwater <br /> Recharge (through deep Sanitation Recharge (through deep <br /> percolation) Irrigation percolation) <br />Irrigation Incidental Recharge through <br />Commercial/Industrial Wastewater Discharge <br /> <br />Metropolitan's economic model divides the service area into 15 subareas to reflect the unique <br />water supply conditions and benefit factors of each (see Figure 2-19). <br /> <br />The salinity model is designed to assess the average annual "regional" benefits or impacts <br />based on demographic data, water deliveries, TDS concentration, and costs for a typical <br />household, agricultural, industrial and commercial water use. It uses mathematical functions <br />which define the relationship between TDS and items in each affected category, such as the <br />useful life of appliances, specific crop yields, and costs to industrial and commercial <br />customers. For example, Figure 2-20 shows the relationship between TDS concentration and <br />the useful life of household water heaters. <br /> <br />BOOKMAN-EDMONSTON Section 2 <br />ENGINEERING, INC. 2-20 Salinity Problems, Impacts, & Technology <br />O:\LOCALRES\ANDYS\SALINITY\JUNE98-3\6SECT2.DOC Last printed 08/18/98 9:45 AM <br /> <br />e <br /> <br /> <br /> <br /> <br /> <br /> <br />e <br /> <br />e <br />