WSP08006

• File Number: 8221.112.A
• Description: Central Arizona Project
• State: AZ
• Basin: Colorado Mainstem
• Date: 6/7/1963
• Title: Supplemental Report: Central Arizona Project
• Water Supply Pro - Doc Type: Report/Study

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population of Phoenix grew from 106,818 in 1950 to 439,170 in 1960, and

that, in the same years, the population of Tucson grew from 45,454 to

212,892. Recent estimates place the mid-1963 population of the cities

of Phoenix and Tucson at about 505,000 and 220,000, respectively. The

municipal and industrial water supply requirements of these and other

cities in the project area have increased proportionately with the

population growth, and these needs are expected to accelerate in fUture

years. Present projections indicate that the population of the area

may be expected to double in the next 10 to 15 years.

The pumpage of ground water, which exceeded the natural recharge of

the basin in 1947 and which was discussed in the 1947 report, has more

than doubled since that time to supply the expanding demands of the

area, and ground-water levels have been declining at an accelerated

rate. The needs for flood control, sediment control, recreation, and

fish and wildlife enhancement have increased in magnitude and urgency

in proportion to the general population growth of the area. Likewise,

,land values and crop returns have increased with a resultant increase

in potential benefits and payment capacity of the lands. Paradoxically,

within this region of dynamic growth, distressed economic conditions

exist on the extensive Indian reservations and in certain rural counties

which qualify the areaS for assistance under the Area Redevelopment Act

of 1961.

Purpose Or Scope of this Report

The purpose of this report is to reevaluate and supplement the

1947 Central Arizona Project report in the light of present-dEW

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