Public water system · CA4910308
ActiveCsp-Wrights Beach State Park
At a glance
Csp-Wrights Beach State Park (PWSID CA4910308) is an active transient non-community water system in Sonoma County, California. It reports serving 502 people through 11 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 2 violations for this system; all are health-based, and the most recent began in December 2017.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
502
Service connections
11
Primary source
GU
Groundwater under influence of surface water
System type
TNCWS
Transient non-community water system
System record
How does Csp-Wrights Beach State Park compare with other water systems in Sonoma County?
By EPA's size categories, Csp-Wrights Beach State Park is a small system (501 to 3,300 people). Sonoma County has 441 active public water systems. Its population served is about half of the county average of 1,092 people per system, and accounts for 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-Wrights Beach State Park is about 3.5 times 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-Wrights Beach State Park?
EPA lists Csp-Wrights Beach State Park 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-Wrights Beach State Park have drinking water violations?
EPA's records list 2 violations for this system; all are health-based, and the most recent began in December 2017. The violations listed here began between January 2015 and December 2017. By type: 2 required treatment not met. The contaminants or rules involved are Revised Total Coliform Rule and Interim Enhanced Surface Water Treatment Rule. EPA lists 2 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 |
|---|---|---|---|---|
| 2017-12-01 | Required treatment not metTreatment Technique, Level 1 Assessment (RTCR) · code 2A | Revised Total Coliform Rulecode 8000 | Yes | Resolved |
| 2015-01-01 | Required treatment not metMonthly Turbidity Exceed (Enhanced SWTR) · code 44 | Interim Enhanced Surface Water Treatment Rulecode 0300 | Yes | Resolved |
All 2 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-Wrights Beach State Park: frequently asked questions
Who runs Csp-Wrights Beach State Park?
Csp-Wrights Beach State Park (PWSID CA4910308) 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-Wrights Beach State Park serve?
Csp-Wrights Beach State Park reports serving 502 people through 11 service connections in Sonoma County, California.
Where does Csp-Wrights Beach State Park 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-Wrights Beach State Park have any drinking water violations?
EPA's records list 2 violations for this system; all are health-based, and the most recent began in December 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-Wrights Beach State Park'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 2 violations for this system; all are health-based, and the most recent began in December 2017. For current results, consult EPA ECHO, or the CA state drinking water program.
Where can I find Csp-Wrights Beach State Park's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Csp-Wrights Beach State Park 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-Wrights Beach State Park, PWSID CA4910308, California”, https://aquacensus.com/water-systems/california/csp-wrights-beach-state-park-ca4910308 (data as of October 1, 2026).