Public water system · CA2000957
ActiveWestern Sierra Charter Schools
At a glance
Western Sierra Charter Schools (PWSID CA2000957) is an active transient non-community water system in Madera County, California. It reports serving 113 people through 3 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's Safe Drinking Water Act records list no violations for this system.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
113
Service connections
3
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Western Sierra Charter Schools compare with other water systems in Madera County?
By EPA's size categories, Western Sierra Charter Schools is a very small system (500 people or fewer). Madera County has 202 active public water systems. Its population served is well below the county average of 915 people per system, and accounts for less than 0.1% of the 184,760 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 Western Sierra Charter Schools is about 21% 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. 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 Western Sierra Charter Schools?
EPA lists Western Sierra Charter Schools as privately owned. 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. 139 of the 202 active systems in Madera County (69%) are also privately owned.
Does Western Sierra Charter Schools have drinking water violations?
No SDWA violations on record.
EPA's SDWA violation and enforcement data (via EPA ECHO, updated quarterly) lists no violations for Western Sierra Charter Schools. For the latest compliance status, check EPA ECHO for current compliance history.
Western Sierra Charter Schools: frequently asked questions
Who runs Western Sierra Charter Schools?
Western Sierra Charter Schools (PWSID CA2000957) is a transient non-community water system privately owned. It is regulated by the CA state drinking water program.
How many people does Western Sierra Charter Schools serve?
Western Sierra Charter Schools reports serving 113 people through 3 service connections in Madera County, California.
Where does Western Sierra Charter Schools 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 Western Sierra Charter Schools have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Western Sierra Charter Schools' 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 Safe Drinking Water Act records list no violations for this system. For current results, consult EPA ECHO, or the CA state drinking water program.
Where can I find Western Sierra Charter Schools' water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Western Sierra Charter Schools 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 Madera County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Madera | Madera | 66,560 | Community | Groundwater |
| Chowchilla City Water Dept | Madera | 13,916 | Community | Groundwater |
| Lupine Bass Lake | Madera | 11,930 | Transient non-community | Groundwater |
| Madera Valley Water Company | Madera | 6,494 | Community | Groundwater |
| Riverstone/Rootcreek Water District | Madera | 5,507 | Community | Groundwater |
| Yosemite Spring Park Util Co | Madera | 5,300 | Community | Groundwater |
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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, “Western Sierra Charter Schools, PWSID CA2000957, California”, https://aquacensus.com/water-systems/california/western-sierra-charter-schools-ca2000957 (data as of October 1, 2026).