Water Quality: Ontario, CA
3 water systems • 185,010 people served
No Health Violations0
Total Violations
0
Health-Based Violations
3
Water Systems
185,010
Population Served
Water Quality Summary
Ontario is served by 3 public water systems with a combined service population of 185,010 people, and has 0 EPA Safe Drinking Water Act violations on record. No violations of any kind are on record for Ontario, indicating a clean compliance history. Ontario's violation count is 100% below the national average for California.
Water Systems Serving Ontario
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| ONTARIO MUNICIPAL UTILITIES COMPANY | CA3610034 | Surface Water | 185,010 | 0 |
| CHINO BASIN DESALTER AUTH. - DESALTER 2 | CA3310083 | Groundwater | 0 | 0 |
| CHINO BASIN DESALTER AUTH. - DESALTER 1 | CA3610075 | Groundwater | 0 | 0 |
Concerned About Your Water?
A home water filter can remove common contaminants. NSF-certified filters are tested against EPA standards.
Consider a reverse osmosis system for comprehensive filtration or a carbon filter for basic improvement.
Other Cities in California
Data Sources
Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). Data includes all recorded violations for active community water systems.