TOLLESON CITY OF Water Quality Report
Population
9,300
people served
Water Source
🌊 Surface
rivers, lakes, reservoirs
National Rank
Top 90%
of 49,184 US systems
5-Year Record
⚠️ 15
violations recorded
C
Fair
Safety Grade
15 violations in the past 5 years
System Details
- PWSID
- AZ0407101
- Population Served
- 9,300
- Water Source
- Surface Water
- Owner
- Local Government
- State
- Arizona
- EPA Region
- 9
Contaminants of Concern
| Contaminant | Status | Violations |
|---|---|---|
| Contaminant 7000 | ⚠ Monitoring/Reporting | 6 |
| Total Trihalomethanes (TTHMs) | ⚠ Monitoring/Reporting | 6 |
| Haloacetic Acids (HAA5) | ⚠ Monitoring/Reporting | 6 |
| Contaminant 0200 | ⚠ Monitoring/Reporting | 7 |
| Contaminant 8000 | ⚠ Monitoring/Reporting | 1 |
| Total Coliform | ⚠ Monitoring/Reporting | 1 |
Violation History
2025
6
2023
3
2022
6
2018
6
2013
1
2011
1
2005
1
2004
1
2003
1
2002
1
Total violations on record: 27
Service Area
Cities Served
ZIP Codes Served
Recommended Water Filters
Based on contaminants detected in this water system:
Activated Carbon Filter
Effective for chlorine, THMs, pesticides, and taste/odor improvement
Removes: Total Trihalomethanes (TTHMs), Haloacetic Acids (HAA5)
UV Water Purifier
Kills bacteria and viruses without chemicals
Removes: Total Coliform
How does this compare?
This systemNational average
Grade C
Avg: B-C
27violations total
96% of national average
National avg: ~28 per system
📍 Average-sized water system.