PlainWater

TONTO BASIN SCHOOL DISTRICT 33

PWS ID: AZ0404055 · TONTO BASIN, Arizona 85553

Population Served
90
Total Violations
194
Health-Based Violations
16
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Local
Connections
1
County
Gila
School/Daycare
Yes
MCL Violations
2
Monitoring Violations
160
Treatment Tech Violations
14

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Chlorine MR 50 2025
Coliform (TCR) MR 27 2015
Revised Total Coliform Rule TT 11 2025
Lead and Copper Rule MR 6 2023
E. COLI MR 6 2023
Total Haloacetic Acids (HAA5) MR 5 2007
TTHM MR 5 2007
Public Notice Other 5 2024
LEAD AND COPPER RULE REVISIONS RPT 3 2024
LEAD AND COPPER RULE REVISIONS TT 3 2024
Coliform (TCR) MCL 2 2006
Revised Total Coliform Rule RPT 2 2020
Antimony, Total MR 1 1998
Beryllium, Total MR 1 1998
Thallium, Total MR 1 1998
Xylenes, Total MR 1 1998
DICHLOROMETHANE MR 1 1998
p-Dichlorobenzene MR 1 1998
1,1-Dichloroethylene MR 1 1998
trans-1,2-Dichloroethylene MR 1 1998
1,1,1-Trichloroethane MR 1 1998
1,1,2-Trichloroethane MR 1 1998
Tetrachloroethylene MR 1 1998
Arsenic MR 1 1998
Benzene MR 1 1998
Toluene MR 1 1998
Ethylbenzene MR 1 1998
BHC-GAMMA MR 1 1998
Diquat MR 1 1998
Barium MR 1 1998
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.