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and the East Side Division of the Central Valley Project. From the South San Joaquin Valley, the 2.4 million acre-feet of additional water would be pumped over the Tehachapi Mountains and conveyed 80-miles into the Antelope Valley in Southern California through the greatly-enlarged California Aqueduct facilities. From the Antelope Valley, one-half of this additional water would be delivered a distance of 60-miles to Perris Reservoir on the East Branch of the California Aqueduct, presumably to replace the entire 1.2 million acre-feet per year flow of MWD's Colorado River Aqueduct. The remaining 1.2 million acre-feet would be conveyed 200 miles easterly across the Mojave Desert in a new aqueduct to Lake Havasu. These facilities are shown in red on the frontispiece. The attached Table 1 shows the major facilities required to provide the additional 2.4 million acre-feet, together with their individual costs. The total cost of these facilities, including interest during the construction, would be $2.22 billion and the annual cost $104.7 million1. The average unit cost for 2.4 million acre-feet would, therefore, be $43.60 per acre-foot. In arriving at the figure of $2.22 billion, the Pacific Southwest Water Plan Report has included only incremental costs for joint-use of the enlarged facilities of both the 1 Pacific Southwest Water Plan, p. VII - 7. -8-Epson Perfection 4870 Photo, 400 dpi, 8 bit, 16,420,864 byte