Public water system · CA5000568
ActiveGregori High School
At a glance
Gregori High School (PWSID CA5000568) is an active non-transient non-community water system in Stanislaus County, California. It reports serving 2,000 people through 9 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's Safe Drinking Water Act records list no violations for this system.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
2,000
Service connections
9
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Gregori High School compare with other water systems in Stanislaus County?
By EPA's size categories, Gregori High School is a small system (501 to 3,300 people). Stanislaus County has 191 active public water systems. Its population served is about 25% below the county average of 2,684 people per system, and accounts for 0.4% of the 512,656 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 Gregori High School is about 4.7 times 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 Gregori High School?
EPA lists Gregori High 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. 57 of the 191 active systems in Stanislaus County (30%) are also owned by a local government.
Does Gregori High School 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 Gregori High School. For the latest compliance status, check EPA ECHO for current compliance history.
Gregori High School: frequently asked questions
Who runs Gregori High School?
Gregori High School (PWSID CA5000568) 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 Gregori High School serve?
Gregori High School reports serving 2,000 people through 9 service connections in Stanislaus County, California.
Where does Gregori High 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 Gregori High School have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Gregori High 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 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 Gregori High School's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Gregori High 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 Stanislaus County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Modesto, City of | Stanislaus | 218,771 | Community | Purchased surface water |
| Turlock, City of | Stanislaus | 72,682 | Community | Purchased surface water |
| Ceres, City of | Stanislaus | 54,513 | Community | Purchased surface water |
| Patterson, City of | Stanislaus | 24,977 | Community | Groundwater |
| Riverbank, City of | Stanislaus | 24,834 | Community | Groundwater |
| Oakdale, City of | Stanislaus | 23,235 | 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, “Gregori High School, PWSID CA5000568, California”, https://aquacensus.com/water-systems/california/gregori-high-school-ca5000568 (data as of October 1, 2026).