Sonoita, Arizona Water Violations

7 water systems serve Sonoita, Arizona, providing drinking water to an estimated 797 people. These systems have 49 health-based violations on record, meaning contaminant levels exceeded EPA maximum contaminant levels (MCLs) or required treatment standards were not met.

Select a water system below to see its full violation history, lead and copper testing results, and compliance status.

Water SystemPopulation ServedSourceViolationsHealth-Based
Adot Border Patrol 100 Groundwater 75 29
Sonoita Mercantile Water System 125 Groundwater 46 15
Casas Arroyo Association Inc 27 Groundwater 47 4
Sonoita Valley (South) Water Company 169 Groundwater 72 1
Sonoita Valley (North) Water Company 49 Groundwater 25 0
Santa Cruz County Fairgrounds 297 Groundwater 17 0
Sonoita Springs Water Company 30 Groundwater 10 0