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Public water system · CA2310317

Active

Csp-Pt. Cabrillo Light Station Shp

At a glance

Csp-Pt. Cabrillo Light Station Shp (PWSID CA2310317) is an active transient non-community water system in Mendocino County, California. It reports serving 430 people through 5 service connections. Its primary water source is surface water, and EPA lists it as owned by a state government. EPA's records list one violation for this system; it is health-based, and the most recent began in September 2006.

Dataset updated . Source: EPA SDWIS/ECHO public records.

Population served

430

Service connections

5

Primary source

SW

Surface water

System type

TNCWS

Transient non-community water system

System record

PWSIDCA2310317
System typeTransient non-community water system
Activity statusActive
Population served430
Service connections5
Primary water sourceSurface water
Owner typeState government
Primacy agencyCA state drinking water program
City served—
StateCalifornia
ZIP—
CountyMendocino County

How does Csp-Pt. Cabrillo Light Station Shp compare with other water systems in Mendocino County?

By EPA's size categories, Csp-Pt. Cabrillo Light Station Shp is a very small system (500 people or fewer). Mendocino County has 144 active public water systems. Its population served is about 25% below the county average of 576 people per system, and accounts for 0.5% 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-Pt. Cabrillo Light Station Shp is about 199% 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-Pt. Cabrillo Light Station Shp?

EPA lists Csp-Pt. Cabrillo Light Station Shp 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-Pt. Cabrillo Light Station Shp have drinking water violations?

EPA's records list one violation for this system; it is health-based, and the most recent began in September 2006. By type: 1 contaminant level above the legal limit. The contaminant or rule involved is Total coliform bacteria (TCR). EPA lists 1 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.

BeganViolationContaminant or ruleHealth-basedStatus
2006-09-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22Total coliform bacteria (TCR)code 3100YesResolved

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.

Csp-Pt. Cabrillo Light Station Shp: frequently asked questions

Who runs Csp-Pt. Cabrillo Light Station Shp?

Csp-Pt. Cabrillo Light Station Shp (PWSID CA2310317) 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-Pt. Cabrillo Light Station Shp serve?

Csp-Pt. Cabrillo Light Station Shp reports serving 430 people through 5 service connections in Mendocino County, California.

Where does Csp-Pt. Cabrillo Light Station Shp 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-Pt. Cabrillo Light Station Shp have any drinking water violations?

EPA's records list one violation for this system; it is health-based, and the most recent began in September 2006. 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-Pt. Cabrillo Light Station Shp'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 health-based, and the most recent began in September 2006. For current results, consult EPA ECHO, or the CA state drinking water program.

Where can I find Csp-Pt. Cabrillo Light Station Shp's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Csp-Pt. Cabrillo Light Station Shp 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 systemCountyPopulation servedTypeSource
Ukiah, City ofMendocino16,607CommunitySurface water
Fort Bragg, City ofMendocino6,919CommunitySurface water
Willits, City ofMendocino6,175CommunitySurface water
Millview County Water DistrictMendocino5,500CommunitySurface water
Redwood Valley County Water DistrictMendocino5,200CommunitySurface water
Willow County Water DistrictMendocino3,797CommunityPurchased 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-Pt. Cabrillo Light Station Shp, PWSID CA2310317, California”, https://aquacensus.com/water-systems/california/csp-pt-cabrillo-light-station-shp-ca2310317 (data as of October 1, 2026).