Public water system · CA2310304

Active

Csp-Russian Gulch State Park

At a glance

Csp-Russian Gulch State Park (PWSID CA2310304) is an active transient non-community water system in Mendocino County, California. It reports serving 30 people through 24 service connections. Its primary water source is surface water, and EPA lists it as owned by a state government. Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in January 2018.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

Service connections

Primary source

Surface water

System type

TNCWS

Transient non-community water system

System record

PWSIDCA2310304

System typeTransient non-community water system

Activity statusActive

Population served30

Service connections24

Primary water sourceSurface water

Owner typeState government

Primacy agencyCA state drinking water program

City served—

StateCalifornia

ZIP—

CountyMendocino County

How does Csp-Russian Gulch State Park compare with other water systems in Mendocino County?

By EPA's size categories, Csp-Russian Gulch State Park is a very small system (500 people or fewer). Mendocino County has 144 active public water systems. Its population served is well below the county average of 576 people per system, and accounts for less than 0.1% 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-Russian Gulch State Park is well 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. 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-Russian Gulch State Park?

EPA lists Csp-Russian Gulch 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. 16 of the 144 active systems in Mendocino County (11%) are also owned by a state government.

Does Csp-Russian Gulch State Park have drinking water violations?

Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in January 2018. The violations listed here began between January 2009 and January 2018. By type: 6 monitoring and reporting and 6 contaminant level above the legal limit. The contaminant or rule involved most often is Total trihalomethanes (TTHM) (9 of them). EPA lists 12 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
2018-01-01	Monitoring and reportingMonitoring, Regular · code 03	Nitritecode 1041	No	Resolved
2016-10-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Total trihalomethanes (TTHM)code 2950	Yes	Resolved
2013-07-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Total trihalomethanes (TTHM)code 2950	Yes	Resolved
2013-04-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Total trihalomethanes (TTHM)code 2950	Yes	Resolved
2013-01-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Total trihalomethanes (TTHM)code 2950	Yes	Resolved
2012-10-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Total trihalomethanes (TTHM)code 2950	Yes	Resolved
2012-07-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Total trihalomethanes (TTHM)code 2950	Yes	Resolved
2011-09-01	Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51	Lead and Copper Rulecode 5000	No	Resolved
2011-04-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Haloacetic acids (HAA5)code 2456	No	Resolved
2011-04-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Total trihalomethanes (TTHM)code 2950	No	Resolved
2010-10-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Total trihalomethanes (TTHM)code 2950	No	Resolved
2009-01-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Total trihalomethanes (TTHM)code 2950	No	Resolved

The 12 most recent 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-Russian Gulch State Park: frequently asked questions

Who runs Csp-Russian Gulch State Park?

Csp-Russian Gulch State Park (PWSID CA2310304) 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-Russian Gulch State Park serve?

Csp-Russian Gulch State Park reports serving 30 people through 24 service connections in Mendocino County, California.

Where does Csp-Russian Gulch State Park 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-Russian Gulch State Park have any drinking water violations?

Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in January 2018. 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-Russian Gulch 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. Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in January 2018. For current results, consult EPA ECHO, or the CA state drinking water program.

Where can I find Csp-Russian Gulch State Park's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Csp-Russian Gulch 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 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-Russian Gulch State Park, PWSID CA2310304, California”, https://aquacensus.com/water-systems/california/csp-russian-gulch-state-park-ca2310304 (data as of October 1, 2026).