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<br />. <br /> <br />. <br /> <br />SETTING <br /> <br />The PVID is in southeastern California, in Riverside and Imperial <br /> <br /> <br />Counties, adjacent to the Colorado River. A privately developed <br /> <br /> <br />irrigation project, the agricultural lands extend about 30 miles <br /> <br />along the Colorado River with a 10-mile width at the widest point. <br /> <br /> <br />Approximately 92,000 acres are irrigated. <br /> <br />The climate of the area is typical of the deserts of the Southwest <br /> <br />with hot dry summers and moderate to cool winters. The growing <br /> <br />season is year-round. Average annual precipitation at Blythe in the <br /> <br /> <br />north-central part of the district is approximately 4 inches per year, <br /> <br />most of which occurs as thunder showers during the summer, <br /> <br />The principal cities within the irrigation district boundaries are <br /> <br />Blythe, Ripley, and Palo Verde. U.S. Highway 60 (Interstate 10) runs <br /> <br />east-west through Blythe and U.S, Highway 95 provides service north <br /> <br />of Blythe. <br /> <br />Physiography <br /> <br />Irrigated lands in the District are mainly on the valley floor adjacent <br /> <br /> <br />to the river. The topography of the valley floor may be characterized <br /> <br />as flat, with a mild slope to the south of about 2 feet per mile. Its <br /> <br />elevation ranges from 270 feet to 220 feet above sea level. It is bounded <br /> <br /> <br />on the east by the Colorado River and on the west by a steep escarpment <br /> <br />80 to 120 feet high. There are some agricultural lands on Palo Verde <br /> <br />Mesa west of the valley. <br /> <br />(, (> ,., () ~, <br />... ...it;;, uO <br /> <br />4 <br />