Public water system · CA2310313
ActiveCsp-Mendocino Woodlands
At a glance
Csp-Mendocino Woodlands (PWSID CA2310313) is an active transient non-community water system in Mendocino County, California. It reports serving 400 people through 7 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; 1 is health-based, and the most recent began in May 2009.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
400
Service connections
7
Primary source
GU
Groundwater under influence of surface water
System type
TNCWS
Transient non-community water system
System record
How does Csp-Mendocino Woodlands compare with other water systems in Mendocino County?
By EPA's size categories, Csp-Mendocino Woodlands is a very small system (500 people or fewer). Mendocino County has 144 active public water systems. Its population served is about 30% 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-Mendocino Woodlands is about 178% 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-Mendocino Woodlands?
EPA lists Csp-Mendocino Woodlands 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-Mendocino Woodlands have drinking water violations?
EPA's records list 3 violations for this system; 1 is health-based, and the most recent began in May 2009. The violations listed here began between August 1995 and May 2009. By type: 1 monitoring and reporting, 1 public notice, recordkeeping or other and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (2 of them). 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 |
|---|---|---|---|---|
| 2009-05-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2003-03-01 | Public notice, recordkeeping or otherVariance/Exemption/Other Compliance · code 08 | Not reported | No | Resolved |
| 1995-08-01 | 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-Mendocino Woodlands: frequently asked questions
Who runs Csp-Mendocino Woodlands?
Csp-Mendocino Woodlands (PWSID CA2310313) 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-Mendocino Woodlands serve?
Csp-Mendocino Woodlands reports serving 400 people through 7 service connections in Mendocino County, California.
Where does Csp-Mendocino Woodlands 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-Mendocino Woodlands have any drinking water violations?
EPA's records list 3 violations for this system; 1 is health-based, and the most recent began in May 2009. 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-Mendocino Woodlands' 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 May 2009. For current results, consult EPA ECHO, or the CA state drinking water program.
Where can I find Csp-Mendocino Woodlands' water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Csp-Mendocino Woodlands 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-Mendocino Woodlands, PWSID CA2310313, California”, https://aquacensus.com/water-systems/california/csp-mendocino-woodlands-ca2310313 (data as of October 1, 2026).