Table 5-2 Summary of water use in major irrigation areas in the Tucson AMA.

IRRIGATION AREA

IRRIGATED ACREAGE

1987-1995 AVERAGE WATER USE (acre-feet)

WATER SOURCES

Cortaro Marana Irrigation District

10,543

33,439

Groundwater, CAP, Effluent

Avra Valley Irrigation District

11,360

26,240

Groundwater, CAP

Farmers’ Investment Co.

5,909

28,026

Groundwater

Red Rock Area

3,843

n/a

Groundwater, CAP

Source: Arizona Department of Water Resources, Draft Third Management Plan, Tucson Active Management Area, 1998.