Public water system · CA4900912
ActiveSalt & Stone Restaurant
At a glance
Salt & Stone Restaurant (PWSID CA4900912) is an active transient non-community water system in Sonoma County, California. It reports serving 80 people through 2 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list one violation for this system; it is not health-based, and the most recent began in August 1984.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
80
Service connections
2
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Salt & Stone Restaurant compare with other water systems in Sonoma County?
By EPA's size categories, Salt & Stone Restaurant is a very small system (500 people or fewer). Sonoma County has 441 active public water systems. Its population served is well below the county average of 1,092 people per system, and accounts for less than 0.1% of the 481,435 people reported by systems filed under the county. Across California, the 7,479 active systems average 5,706 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Salt & Stone Restaurant is about 44% below that figure.
What does “transient non-community water system” mean?
A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. California has 3,016 active transient non-community water systems, 40% of the state's 7,479 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 6,179 California systems (83%) list groundwater as their primary source.
Who owns and regulates Salt & Stone Restaurant?
EPA lists Salt & Stone Restaurant as privately owned. The CA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 371 of the 441 active systems in Sonoma County (84%) are also privately owned.
Does Salt & Stone Restaurant have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in August 1984. By type: 1 public notice, recordkeeping or other. EPA lists 1 as archived. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 1984-08-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
The one violation in EPA's records.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Salt & Stone Restaurant: frequently asked questions
Who runs Salt & Stone Restaurant?
Salt & Stone Restaurant (PWSID CA4900912) is a transient non-community water system privately owned. It is regulated by the CA state drinking water program.
How many people does Salt & Stone Restaurant serve?
Salt & Stone Restaurant reports serving 80 people through 2 service connections in Sonoma County, California.
Where does Salt & Stone Restaurant get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Salt & Stone Restaurant have any drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in August 1984. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Salt & Stone Restaurant's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. EPA's records list one violation for this system; it is not health-based, and the most recent began in August 1984. For current results, consult EPA ECHO, or the CA state drinking water program.
Where can I find Salt & Stone Restaurant's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Salt & Stone Restaurant is a transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
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 |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Salt & Stone Restaurant, PWSID CA4900912, California”, https://aquacensus.com/water-systems/california/salt-stone-restaurant-ca4900912 (data as of October 1, 2026).