Water Systems Serving Zip Code 94931
Not sure which system is yours? Most residents in ZIP 94931 are likely served by City of Cotati (population served: 7,303). Check your water bill for your provider name if you're unsure.
Direct EPA ZIP Matches
3 active water systems have this ZIP in EPA records.
| Water System | Population Served | Source | Violations | Health-Based |
|---|---|---|---|---|
| Karah Estate Winery | 27 | Groundwater | 21 | 2 |
| City of Cotati | 7,303 | Groundwater | 0 | 0 |
| Madrone Mutual Water Company | 76 | Groundwater | 0 | 0 |