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<br /> <br />ELECTRICAL POWER <br />REPLACEMENTS <br /> <br />CHEMICALS/ <br />SUPPLIES <br />12% <br /> <br /> <br />AD M I N 1ST RATIO N / G EN E RAL <br /> <br />PRETREATMENT <br />AND DESALTING <br />EQUIPMENT <br />22% <br /> <br />EVAPORATION PONDS <br />39% <br /> <br /> <br />TOT AL ANNUAL COSTS (1981) - $12,430,000 <br /> <br />Reverse osmosis membrane desalting plant - 70% recovery <br />Feed. 9,470 mg/L TDS <br />Product - 284 mg/L TDS <br />Capacity - 7.7 million gal/day (29.1 x 103 m3d) <br />Cost effectiveness - $1,480,000 per mg/L per year <br /> <br />Figure 9. - Total annual costs for LaVerkin Springs Desalting Facil ity. <br /> <br />16 <br />