Public water system · CA2310312
ActiveCsp-Westport State Beach
At a glance
Csp-Westport State Beach (PWSID CA2310312) is an active transient non-community water system in Mendocino County, California. It reports serving 370 people through 21 service connections. Its primary water source is surface water, and EPA lists it as owned by a state government. EPA's records list 3 violations for this system; 1 is health-based, and the most recent began in August 2020.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
370
Service connections
21
Primary source
SW
Surface water
System type
TNCWS
Transient non-community water system
System record
How does Csp-Westport State Beach compare with other water systems in Mendocino County?
By EPA's size categories, Csp-Westport State Beach is a very small system (500 people or fewer). Mendocino County has 144 active public water systems. Its population served is about 36% below the county average of 576 people per system, and accounts for 0.4% of the 82,868 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-Westport State Beach is about 157% 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. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 609 California systems (8.1%) list surface water as their primary source.
Who owns and regulates Csp-Westport State Beach?
EPA lists Csp-Westport 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. 16 of the 144 active systems in Mendocino County (11%) are also owned by a state government.
Does Csp-Westport State Beach have drinking water violations?
EPA's records list 3 violations for this system; 1 is health-based, and the most recent began in August 2020. The violations listed here began between August 2002 and August 2020. By type: 2 monitoring and reporting and 1 required treatment not met. 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 |
|---|---|---|---|---|
| 2020-08-01 | Required treatment not metSingle Turbidity Exceed (Enhanced SWTR) · code 43 | Interim Enhanced Surface Water Treatment Rulecode 0300 | Yes | Resolved |
| 2010-08-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2002-08-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | 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-Westport State Beach: frequently asked questions
Who runs Csp-Westport State Beach?
Csp-Westport State Beach (PWSID CA2310312) 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-Westport State Beach serve?
Csp-Westport State Beach reports serving 370 people through 21 service connections in Mendocino County, California.
Where does Csp-Westport State Beach get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does Csp-Westport State Beach have any drinking water violations?
EPA's records list 3 violations for this system; 1 is health-based, and the most recent began in August 2020. 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-Westport 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; 1 is health-based, and the most recent began in August 2020. For current results, consult EPA ECHO, or the CA state drinking water program.
Where can I find Csp-Westport State Beach's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Csp-Westport 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 Mendocino County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Ukiah, City of | Mendocino | 16,607 | Community | Surface water |
| Fort Bragg, City of | Mendocino | 6,919 | Community | Surface water |
| Willits, City of | Mendocino | 6,175 | Community | Surface water |
| Millview County Water District | Mendocino | 5,500 | Community | Surface water |
| Redwood Valley County Water District | Mendocino | 5,200 | Community | Surface water |
| Willow County Water District | Mendocino | 3,797 | Community | Purchased surface water |
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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-Westport State Beach, PWSID CA2310312, California”, https://aquacensus.com/water-systems/california/csp-westport-state-beach-ca2310312 (data as of October 1, 2026).