OCR Text |
Show 57 supply of water for the District as a distributor of water, however, is the Colorado River, and most irrigation is done with water from this source.29 The Coachella District is served by the Coachella Branch of the All-American Canal. The Coachella Canal, which was completed in 1947 and 1948, runs in a generally northwesterly direction to the end of Improvement District No. 1 where it swings around the north end of the Valley and follows a southwesterly direction for a short distance.30 It turns out of the All-American Canal at Drop No. 1, and between Drop No. 1 and Check 6-A the canal is un-lined and is shared by both Coachella and Imperial. At Check 6-A complete responsibility for operation and maintenance is assumed by Coachella.81 For 37 miles after Check 6-A the canal remains unlined but the final 37 miles have been lined with concrete.82 A settling basin for the removal of debris that accumulates in the unlined portion has been constructed where the canal enters Improvement District No. I.33 Beyond this point, on the east side of the canal, levees and detention basins protect the canal from intrusion of storm water.34 Distribution of water from the canal is made by an underground closed system of pipelines of which there are 470 miles in Improvement District No. 1. In addition, a high pressure lateral takes water from the canal and traverses the Valley to deliver water to the Oasis Area, 29Tr. 8516-8517 (Rowe); Calif. Ex. 318, Table 4. 30Tr. 83S7 (Weeks); see Calif. Ex. 306. 31Tr. 8422 (Weeks). 32Tr. 8424 (Weeks). The capacity of the canal at various points is as follows: Drop No. 1, 2500 c.f.s., 1500 c.f.s. for Coachella and 1,000 c.f.s. for Imperial; Check 6-A, 1500 c.f.s.; beginning of lined portion, 1300 c.f.s.; end of canal, 425 c.f.s. Tr. 8422, 8426, 8443 (Weeks). 33Tr. 8388 (Weeks). 34See Calif. Ex. 306. |
Source |
Original Report: State of Arizona, complainant v. State of California, Palo Verde Irrigation District, Imperial Irrigation District, Coachella Valley County Water District, Metropolitan Water District of Southern California, City of Los Angeles, California, City of San Diego, California, and County of San Diego, California |