| Table 5-1 Selected water providers in the Tucson Metropolitan area. 45 |
 |
| Table 5-2 Summary of water use in major irrigation areas in the Tucson AMA. 56 |
 |
| Table 5-3 Water delivered to Groundwater Savings Facilities (acre-feet). 58 |
 |
| Table 6-1 Identified groundwater contamination sites in Pima County 67 |
 |
| Table 6-2 A summary comparison of ways of treating drinking water. 70 |
 |
| Table 6-3 Comparison of source water quality to federal standards. The figures are averages. Actual quality may vary at different times and places. 74 |
 |
| Table 6-4 Factors which affect corrosion in water systems. 76 |
 |
