Public water system · CA4910313
ActiveCsp-Goat Rock State Beach
At a glance
Csp-Goat Rock State Beach (PWSID CA4910313) is an active transient non-community water system in Sonoma County, California. It reports serving 402 people through 4 service connections. Its primary water source is groundwater under influence of surface water, and EPA lists it as owned by a state government. EPA's records list 3 violations for this system; 2 are health-based, and the most recent began in August 2017.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
402
Service connections
4
Primary source
GU
Groundwater under influence of surface water
System type
TNCWS
Transient non-community water system
System record
How does Csp-Goat Rock State Beach compare with other water systems in Sonoma County?
By EPA's size categories, Csp-Goat Rock State Beach is a very small system (500 people or fewer). Sonoma County has 441 active public water systems. Its population served is about 63% 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 Csp-Goat Rock State Beach is about 179% above 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 under the influence of surface water is well or spring water that the regulator has found to be affected by nearby surface water, so it is regulated under the surface-water treatment rules. 105 California systems (1.4%) list groundwater under influence of surface water as their primary source.
Who owns and regulates Csp-Goat Rock State Beach?
EPA lists Csp-Goat Rock State Beach as owned by a state government. 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. 10 of the 441 active systems in Sonoma County (2.3%) are also owned by a state government.
Does Csp-Goat Rock State Beach have drinking water violations?
EPA's records list 3 violations for this system; 2 are health-based, and the most recent began in August 2017. The violations listed here began between August 2006 and August 2017. By type: 1 required treatment not met, 1 monitoring and reporting and 1 contaminant level above the legal limit. The contaminants or rules involved are Interim Enhanced Surface Water Treatment Rule, Surface Water Treatment Rule and Total coliform bacteria (TCR). EPA lists 3 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2017-08-01 | Required treatment not metMonthly Turbidity Exceed (Enhanced SWTR) · code 44 | Interim Enhanced Surface Water Treatment Rulecode 0300 | Yes | Resolved |
| 2011-03-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2006-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
All 3 violations in EPA's records, newest first.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.
Csp-Goat Rock State Beach: frequently asked questions
Who runs Csp-Goat Rock State Beach?
Csp-Goat Rock State Beach (PWSID CA4910313) is a transient non-community water system owned by a state government. It is regulated by the CA state drinking water program.
How many people does Csp-Goat Rock State Beach serve?
Csp-Goat Rock State Beach reports serving 402 people through 4 service connections in Sonoma County, California.
Where does Csp-Goat Rock State Beach get its water?
EPA SDWIS lists this system's primary water source as groundwater under influence of surface water. Groundwater under the influence of surface water is well or spring water that the regulator has found to be affected by nearby surface water, so it is regulated under the surface-water treatment rules.
Does Csp-Goat Rock State Beach have any drinking water violations?
EPA's records list 3 violations for this system; 2 are health-based, and the most recent began in August 2017. 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 Csp-Goat Rock State Beach'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 3 violations for this system; 2 are health-based, and the most recent began in August 2017. For current results, consult EPA ECHO, or the CA state drinking water program.
Where can I find Csp-Goat Rock State Beach's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Csp-Goat Rock State Beach 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, “Csp-Goat Rock State Beach, PWSID CA4910313, California”, https://aquacensus.com/water-systems/california/csp-goat-rock-state-beach-ca4910313 (data as of October 1, 2026).