Water Systems Serving Zip Code 94561
Not sure which system is yours? Most residents in ZIP 94561 are likely served by Diablo Water District (population served: 43,357). Check your water bill for your provider name if you're unsure.
Direct EPA ZIP Matches
13 active water systems have this ZIP in EPA records.
| Water system | Serves | Source | Violations | What kind |
|---|---|---|---|---|
| Delta Mutual Water Company | 333 | Groundwater | 18 | 17 over limit |
| Willow Park Marina | 380 | Groundwater | 16 | 16 over limit |
| Oakley Mutual Water Company | 170 | Groundwater | 15 | 13 over limit |
| Gas N Save | 120 | Groundwater | 6 | |
| Dutch Slough Water Works | 49 | Groundwater | 2 | |
| Camino Mobilehome | 210 | Groundwater | 1 | |
| Sherman Lake Marina | 34 | Groundwater | 1 | |
| Mountain House Bar | 25 | Groundwater | 1 | |
| Diablo Water District | 43,357 | Surface Water Purchased | 0 | none on record |
| Big Oak Mobile Home Park Water | 156 | Groundwater | 0 | none on record |
| Bethel Baptist Church | 75 | Groundwater | 0 | none on record |
| Knightsen Community Water System | 73 | Groundwater | 0 | none on record |
| Bethel Missionary Baptist | 54 | Groundwater | 0 | none on record |