Public water system · CA2000370
ActiveTom Pistachio Water System
At a glance
Tom Pistachio Water System (PWSID CA2000370) is an active non-transient non-community water system in Madera County, California. It reports serving 2,100 people through 14 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
2,100
Service connections
14
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Tom Pistachio Water System compare with other water systems in Madera County?
By EPA's size categories, Tom Pistachio Water System is a small system (501 to 3,300 people). Madera County has 202 active public water systems. Its population served is about 130% above the county average of 915 people per system, and accounts for 1.1% 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 non-transient non-community water system reports serving 430 people, so Tom Pistachio Water System is about 4.9 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 Tom Pistachio Water System?
EPA lists Tom Pistachio Water System 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 Tom Pistachio Water System 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 Tom Pistachio Water System. For the latest compliance status, check EPA ECHO for current compliance history.
Tom Pistachio Water System: frequently asked questions
Who runs Tom Pistachio Water System?
Tom Pistachio Water System (PWSID CA2000370) is a non-transient non-community water system privately owned. It is regulated by the CA state drinking water program.
How many people does Tom Pistachio Water System serve?
Tom Pistachio Water System reports serving 2,100 people through 14 service connections in Madera County, California.
Where does Tom Pistachio Water System 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 Tom Pistachio Water System have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Tom Pistachio Water System'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 Tom Pistachio Water System's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Tom Pistachio Water System 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 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, “Tom Pistachio Water System, PWSID CA2000370, California”, https://aquacensus.com/water-systems/california/tom-pistachio-water-system-ca2000370 (data as of October 1, 2026).