Public water system · CA4901275
ActiveCornerstone Sonoma
Transient non-community water system in Sonoma County, California, drawing primarily on groundwater.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
175
Service connections
6
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
Violations & enforcement
| Began | Violation | Contaminant | Health-based | Status |
|---|---|---|---|---|
| 2017-11-01 | 31 | 0700 | No | Resolved |
| 2016-10-01 | 3A | 8000 | No | Resolved |
| 2012-01-01 | 22 | 3100 | Yes | Resolved |
Cornerstone Sonoma: frequently asked questions
Is Cornerstone Sonoma's water safe to drink?
Cornerstone Sonoma is an active transient non-community water system regulated under the Safe Drinking Water Act, overseen by the CA state drinking water program. EPA SDWA violation and enforcement records for this system are being added to AquaCensus from EPA ECHO; consult EPA ECHO or your annual Consumer Confidence Report for its current compliance status.
Who runs Cornerstone Sonoma?
Cornerstone Sonoma (PWSID CA4901275) is a private-owned transient non-community water system, regulated by the CA state drinking water program.
How many people does Cornerstone Sonoma serve?
Cornerstone Sonoma reports serving 175 people through 6 service connections in Sonoma County, California.
Where does Cornerstone Sonoma get its water?
EPA SDWIS lists this system's primary water source as groundwater.
Other water systems in Sonoma County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Santa Rosa, City of | Sonoma | 175,396 | Community | Groundwater |
| Petaluma, City of | Sonoma | 60,781 | Community | Groundwater |
| Rohnert Park, City of | Sonoma | 43,821 | Community | Groundwater |
| Windsor, Town of | Sonoma | 25,561 | Community | Groundwater |
| Valley of the Moon Water District | Sonoma | 23,107 | Community | Groundwater |
| Sonoma, City of | Sonoma | 11,725 | Community | Groundwater |