Water Quality: Sonoma, CA
4 water systems • 13,206 people served
Some Concerns17
Total Violations
1
Health-Based Violations
4
Water Systems
13,206
Population Served
Water Quality Summary
Sonoma has 1 health-based violation on record, meaning one or more contaminants were found above EPA-established safe levels. Contaminants involved: Stage 2 DBP. In total, 17 violations are on record for 4 water systems serving 13,206 people.
Contaminants Found
Stage 2 DBP
Water Systems Serving Sonoma
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| SONOMA, CITY OF | CA4910012 | Groundwater | 11,725 | 10 |
| MOON VALLEY WATER SYSTEM | CA4900871 | Groundwater | 691 | 0 |
| DIAMOND A MUTUAL WATER COMPANY | CA4900562 | Groundwater | 640 | 2 |
| MISSION HIGHLANDS MUTUAL WATER CO. | CA4900563 | Groundwater | 150 | 5 |
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.
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.