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Public water system · CA4500181

Active

Whitmore Union Elem School

At a glance

Whitmore Union Elem School (PWSID CA4500181) is an active non-transient non-community water system in Shasta County, California. It reports serving 35 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in October 2024.

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

Population served

35

Service connections

1

Primary source

GW

Groundwater

System type

NTNCWS

Non-transient non-community water system

System record

PWSIDCA4500181
System typeNon-transient non-community water system
Activity statusActive
Population served35
Service connections1
Primary water sourceGroundwater
Owner typeLocal government
Primacy agencyCA state drinking water program
City served—
StateCalifornia
ZIP—
CountyShasta County

How does Whitmore Union Elem School compare with other water systems in Shasta County?

By EPA's size categories, Whitmore Union Elem 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 less than 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 Whitmore Union Elem School is well 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 Whitmore Union Elem School?

EPA lists Whitmore Union Elem 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 Whitmore Union Elem School have drinking water violations?

Of the 12 most recent violations in EPA's records, 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 monitoring, 3 monitoring and reporting, 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 Total coliform bacteria (TCR) (4 of them). EPA lists 7 as resolved, 3 as archived and 2 as unaddressed. 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. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.

BeganViolationContaminant or ruleHealth-basedStatus
2024-10-17Required treatment not metLSL Inventory · code 2ELead and Copper Rule Revisionscode 5200YesUnaddressed
2024-10-17ReportingLSL Reporting · code 4GLead and Copper Rule Revisionscode 5200NoUnaddressed
2023-01-01MonitoringMonitoring, Routine (RTCR) · code 3ARevised Total Coliform Rulecode 8000NoResolved
2022-09-01MonitoringMonitoring, Routine (RTCR) · code 3ARevised Total Coliform Rulecode 8000NoResolved
2020-05-01MonitoringMonitoring, Routine (RTCR) · code 3ARevised Total Coliform Rulecode 8000NoResolved
2013-10-01Monitoring and reportingMonitoring, Routine Major (TCR) · code 23Total coliform bacteria (TCR)code 3100NoResolved
2009-01-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22Total coliform bacteria (TCR)code 3100YesResolved
2008-11-01Monitoring and reportingMonitoring, Routine Major (TCR) · code 23Total coliform bacteria (TCR)code 3100NoResolved
2007-10-01Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24Total coliform bacteria (TCR)code 3100NoResolved
1983-01-01Public notice, recordkeeping or otherNotification, Public · code 06Not reportedNoArchived
1982-11-01Public notice, recordkeeping or otherNotification, Public · code 06Not reportedNoArchived
1982-10-01Public notice, recordkeeping or otherNotification, Public · code 06Not reportedNoArchived

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.

Whitmore Union Elem School: frequently asked questions

Who runs Whitmore Union Elem School?

Whitmore Union Elem School (PWSID CA4500181) 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 Whitmore Union Elem School serve?

Whitmore Union Elem School reports serving 35 people through 1 service connection in Shasta County, California.

Where does Whitmore Union Elem 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 Whitmore Union Elem School have any drinking water violations?

Of the 12 most recent violations in EPA's records, 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 Whitmore Union Elem 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. Of the 12 most recent violations in EPA's records, 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 Whitmore Union Elem School's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Whitmore Union Elem 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 systemCountyPopulation servedTypeSource
City of ReddingShasta89,628CommunitySurface water
Bella Vista Water DistrictShasta18,612CommunitySurface water
City of AndersonShasta11,147CommunityGroundwater
City of Shasta LakeShasta10,657CommunitySurface water
Shasta District FairShasta10,200Transient non-communityGroundwater
Clear Creek Csd-AndersonShasta8,900CommunitySurface 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, “Whitmore Union Elem School, PWSID CA4500181, California”, https://aquacensus.com/water-systems/california/whitmore-union-elem-school-ca4500181 (data as of October 1, 2026).