Public water system · CA5210501
ActiveLassen Vnp - Southwest/Chalet
At a glance
Lassen Vnp - Southwest/Chalet (PWSID CA5210501) is an active transient non-community water system in Tehama County, California. It reports serving 145 people through 6 service connections. Its primary water source is surface water, and EPA lists it as owned by the federal government. EPA's Safe Drinking Water Act records list no violations for this system.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
145
Service connections
6
Primary source
SW
Surface water
System type
TNCWS
Transient non-community water system
System record
How does Lassen Vnp - Southwest/Chalet compare with other water systems in Tehama County?
By EPA's size categories, Lassen Vnp - Southwest/Chalet is a very small system (500 people or fewer). Tehama County has 109 active public water systems. Its population served is well below the county average of 474 people per system, and accounts for 0.3% of the 51,627 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 Lassen Vnp - Southwest/Chalet is roughly in line with 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. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 609 California systems (8.1%) list surface water as their primary source.
Who owns and regulates Lassen Vnp - Southwest/Chalet?
EPA lists Lassen Vnp - Southwest/Chalet as owned by the federal 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. 11 of the 109 active systems in Tehama County (10%) are also owned by the federal government.
Does Lassen Vnp - Southwest/Chalet 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 Lassen Vnp - Southwest/Chalet. For the latest compliance status, check EPA ECHO for current compliance history.
Lassen Vnp - Southwest/Chalet: frequently asked questions
Who runs Lassen Vnp - Southwest/Chalet?
Lassen Vnp - Southwest/Chalet (PWSID CA5210501) is a transient non-community water system owned by the federal government. It is regulated by the CA state drinking water program.
How many people does Lassen Vnp - Southwest/Chalet serve?
Lassen Vnp - Southwest/Chalet reports serving 145 people through 6 service connections in Tehama County, California.
Where does Lassen Vnp - Southwest/Chalet get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does Lassen Vnp - Southwest/Chalet have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Lassen Vnp - Southwest/Chalet'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 Lassen Vnp - Southwest/Chalet's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Lassen Vnp - Southwest/Chalet 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 Tehama County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Red Bluff | Tehama | 14,710 | Community | Groundwater |
| City of Corning | Tehama | 8,244 | Community | Groundwater |
| Rio Alto Water District | Tehama | 3,329 | Community | Groundwater |
| Caltrans-Red Bluff Rest-Nb | Tehama | 2,600 | Transient non-community | Groundwater |
| Caltrans-Red Bluff Rest-Sb | Tehama | 2,500 | Transient non-community | Groundwater |
| Los Molinos Comm. Services Dist. | Tehama | 1,450 | 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, “Lassen Vnp - Southwest/Chalet, PWSID CA5210501, California”, https://aquacensus.com/water-systems/california/lassen-vnp-southwest-chalet-ca5210501 (data as of October 1, 2026).