Public water system · CA2310006
ActiveMillview County Water District
At a glance
Millview County Water District (PWSID CA2310006) is an active community water system in Mendocino County, California. It reports serving 5,500 people through 1,715 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. EPA's records list one violation for this system; it is not health-based, and the most recent began in September 1980.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
5,500
Service connections
1,715
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Millview County Water District compare with other water systems in Mendocino County?
By EPA's size categories, Millview County Water District is a medium system (3,301 to 10,000 people). Mendocino County has 144 active public water systems, and Millview County Water District is the 4th-largest of them by population served. Its population served is about 9.6 times the county average of 576 people per system, and accounts for 6.6% 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 community water system reports serving 6,703 people, so Millview County Water District is about 18% below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. California has 2,997 active 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 Millview County Water District?
EPA lists Millview County Water District as owned by a local 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. 26 of the 144 active systems in Mendocino County (18%) are also owned by a local government.
Does Millview County Water District have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in September 1980. By type: 1 public notice, recordkeeping or other. EPA lists 1 as archived. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 1980-09-30 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
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.
Millview County Water District: frequently asked questions
Who runs Millview County Water District?
Millview County Water District (PWSID CA2310006) is a community water system owned by a local government. It is regulated by the CA state drinking water program.
How many people does Millview County Water District serve?
Millview County Water District reports serving 5,500 people through 1,715 service connections in Mendocino County, California.
Where does Millview County Water District 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 Millview County Water District have any drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in September 1980. 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 Millview County Water District'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 not health-based, and the most recent began in September 1980. For current results, consult the system's annual water quality report, EPA ECHO, or the CA state drinking water program.
Where can I find Millview County Water District's water quality report?
As a community water system, Millview County Water District must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
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 |
| Redwood Valley County Water District | Mendocino | 5,200 | Community | Surface water |
| Willow County Water District | Mendocino | 3,797 | Community | Purchased surface water |
| Brooktrails Township Csd | Mendocino | 3,632 | Community | 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, “Millview County Water District, PWSID CA2310006, California”, https://aquacensus.com/water-systems/california/millview-county-water-district-ca2310006 (data as of October 1, 2026).