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<br />t <br /> <br />I <br /> <br />. <br /> <br />1 <br /> <br />CONSTRUCTION Of . <br />ADDITIONAL fACILITIES --; <br />REGARDLESS Of WOSA ' <br /> <br />I <br />MEXICAN WATER TREATY' <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />I <br />I <br />.1 1_ <br /> <br />BENEFITS <br /> <br />14. Costs and benefits (Thousands of Dollars) <br /> <br />nually could be generated within the Colorado River Basin, and <br />$5.0 million annually by the out-of-basin runoff. Of the $12.8 <br />million total annual benefits, $6.2 million is accounted for by <br />electrical power generation. <br />If Congress appropriates money for P.L. 90-537 projects, <br />a situation could arise where WOSA could "rescue" anticipated <br /> <br />ECONOMIC EFFECTS <br /> <br />BENEFITS <br /> <br /> <br />IN- BASIN WATER USE <br /> <br />WATER SUPPLY. GENERAL <br /> <br />INTERMOUNTAIN <br />DIVERSION <br /> <br />MUNICIPAL AND <br />INDUSTRIAL <br /> <br />AGRICULTURE <br /> <br />t>jJf/ WOSA EXISTING FACILITIES <br />_ ADDITIONAL FACILITIES <br /> <br />WATER QUALITY <br /> <br />O_UT-Of- RASIN WA <br />HYDROPOWER <br />GENERATION <br /> <br />AGRICULTURE <br /> <br />MUNICIPAL AND <br />INDUSTRIAL <br /> <br />HYDROPOWER <br />GENERATION <br /> <br /> <br />Fig. <br /> <br />AVALANCHE <br /> 84 <br />WOSA SYSTE sn <br />fLOOO fORECASTING <br />'ENVIRONMENTAL MONITORI~~. <br />IN-BASIN ECONOMIC <br />OETRIMENTS <br />OUT-Of-BASIN ECONOMIC <br />OETRIMENTS <br /> <br />I <br /> <br />SNOWPACK, CLOUD-SEEDING, AND THE COLORADO RIVER <br /> <br />projects in the Upper Basin. Congress has not yet authorized <br />any augmentation project, but it has appropriated money to <br />begin some of the authorized projects. If the authorized projects <br />were built, they would increase the consumption of the Colo- <br />rado River water to the point where the WOSA water would be <br />used. <br />The water to be added by WOSA is roughly equal to the <br />U.S. commitment to Mexico under the Treaty of 1944. If the <br />WOSA water were allocated to Mexico, it would relieve the <br />Basin states of any obligation they have to Mexico under the <br />Colorado River Compact. An equivalent amount of water <br />would therefore become available for the water-short P.L. 90- <br />537 projects. The benefit of WOSA water in this case would be <br />equal to the cost of the cheapest alternative way of providing <br />water to Mexico. Since the cheapest alternative way would be to <br />withhold water from the Imperial Valley, this cost is estimated <br />to equal the benefits foregone by 1.5 million acre-feetper year in <br />agriculture in the Imperial Valley, or some $30 million per year. <br />A more realistic way of viewing the benefits of WOSA is <br />that augmentation is necessary to make the P.L. 90-537 proj- <br />ects feasible. Then, WOSA creates no new benefits outside those <br />already claimed for the P.L. 90-537 projects. All that it does is <br />to add to the costs, and the costs of the P.L. 90-537 projects <br />already exceed the benefits. <br />The amount of runoff that will be produced outside the <br />Colorado River Basin by a full-scale WOSA program in the <br />basin is about 1.2 million acre~feet. With the existing facilities, <br />this water would create some $900,000 per year in benefits <br />from hydropower production; $2.0 million per year in benefits <br />from the use of water in agriculture; and $2.1 million per year <br />in benefits from the use of water in urban areas. <br /> <br />Summary <br /> <br />If only existing facilities are used to store and distribute WOSA <br />water and generate power, benefits of at least $7.8 million an- <br /> <br />I <br /> <br />I <br /> <br />I., <br />,...1.1.'.....' <br />:1 <br /> <br />55 <br /> <br />54 <br /> <br />Ii" <br />.-w <br />