Public water system · CA4500180
ActiveMillville Elementary School
At a glance
Millville Elementary School (PWSID CA4500180) is an active non-transient non-community water system in Shasta County, California. It reports serving 240 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 6 violations for this system; 2 are health-based, and the most recent began in October 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
240
Service connections
1
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Millville Elementary School compare with other water systems in Shasta County?
By EPA's size categories, Millville Elementary School is a very small system (500 people or fewer). Shasta County has 174 active public water systems. Its population served is well below the county average of 1,208 people per system, and accounts for 0.1% of the 210,209 people reported by systems filed under the county. Across California, the 7,479 active systems average 5,706 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Millville Elementary School is about 44% below that figure.
What does “non-transient non-community water system” mean?
A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. California has 1,466 active non-transient non-community water systems, 20% of the state's 7,479 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 6,179 California systems (83%) list groundwater as their primary source.
Who owns and regulates Millville Elementary School?
EPA lists Millville Elementary School 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. 31 of the 174 active systems in Shasta County (18%) are also owned by a local government.
Does Millville Elementary School have drinking water violations?
EPA's records list 6 violations for this system; 2 are health-based, and the most recent began in October 2024. The violations listed here began between October 1982 and October 2024. By type: 3 public notice, recordkeeping or other, 1 required treatment not met, 1 reporting and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Lead and Copper Rule Revisions (2 of them). EPA lists 3 as archived, 2 as addressed and 1 as resolved. 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. Addressed means the violation is not resolved or archived and is covered by formal enforcement. 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 |
|---|---|---|---|---|
| 2024-10-17 | Required treatment not metLSL Inventory · code 2E | Lead and Copper Rule Revisionscode 5200 | Yes | Addressed |
| 2024-10-17 | ReportingLSL Reporting · code 4G | Lead and Copper Rule Revisionscode 5200 | No | Addressed |
| 2012-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1983-01-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1982-11-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1982-10-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
All 6 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.
Millville Elementary School: frequently asked questions
Who runs Millville Elementary School?
Millville Elementary School (PWSID CA4500180) is a non-transient non-community water system owned by a local government. It is regulated by the CA state drinking water program.
How many people does Millville Elementary School serve?
Millville Elementary School reports serving 240 people through 1 service connection in Shasta County, California.
Where does Millville Elementary School get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Millville Elementary School have any drinking water violations?
EPA's records list 6 violations for this system; 2 are health-based, and the most recent began in October 2024. 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 Millville Elementary School'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 6 violations for this system; 2 are health-based, and the most recent began in October 2024. For current results, consult EPA ECHO, or the CA state drinking water program.
Where can I find Millville Elementary School's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Millville Elementary School is a non-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 Shasta County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Redding | Shasta | 89,628 | Community | Surface water |
| Bella Vista Water District | Shasta | 18,612 | Community | Surface water |
| City of Anderson | Shasta | 11,147 | Community | Groundwater |
| City of Shasta Lake | Shasta | 10,657 | Community | Surface water |
| Shasta District Fair | Shasta | 10,200 | Transient non-community | Groundwater |
| Clear Creek Csd-Anderson | Shasta | 8,900 | 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, “Millville Elementary School, PWSID CA4500180, California”, https://aquacensus.com/water-systems/california/millville-elementary-school-ca4500180 (data as of October 1, 2026).