Public water system · CA3910025
ActiveLawrence Livermore National Lab-Site 300
At a glance
Lawrence Livermore National Lab-Site 300 (PWSID CA3910025) is an active non-transient non-community water system in San Joaquin County, California. It reports serving 261 people through 109 service connections. Its primary water source is purchased 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
261
Service connections
109
Primary source
SWP
Purchased surface water
System type
NTNCWS
Non-transient non-community water system
System record
How does Lawrence Livermore National Lab-Site 300 compare with other water systems in San Joaquin County?
By EPA's size categories, Lawrence Livermore National Lab-Site 300 is a very small system (500 people or fewer). San Joaquin County has 302 active public water systems. Its population served is well below the county average of 2,571 people per system, and accounts for less than 0.1% of the 776,334 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 Lawrence Livermore National Lab-Site 300 is about 39% 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. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 506 California systems (6.8%) list purchased surface water as their primary source.
Who owns and regulates Lawrence Livermore National Lab-Site 300?
EPA lists Lawrence Livermore National Lab-Site 300 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. 4 of the 302 active systems in San Joaquin County (1.3%) are also owned by the federal government.
Does Lawrence Livermore National Lab-Site 300 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 Lawrence Livermore National Lab-Site 300. For the latest compliance status, check EPA ECHO for current compliance history.
Lawrence Livermore National Lab-Site 300: frequently asked questions
Who runs Lawrence Livermore National Lab-Site 300?
Lawrence Livermore National Lab-Site 300 (PWSID CA3910025) is a non-transient non-community water system owned by the federal government. It is regulated by the CA state drinking water program.
How many people does Lawrence Livermore National Lab-Site 300 serve?
Lawrence Livermore National Lab-Site 300 reports serving 261 people through 109 service connections in San Joaquin County, California.
Where does Lawrence Livermore National Lab-Site 300 get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Lawrence Livermore National Lab-Site 300 have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Lawrence Livermore National Lab-Site 300'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 Lawrence Livermore National Lab-Site 300's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Lawrence Livermore National Lab-Site 300 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 San Joaquin County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Stockton | San Joaquin | 191,302 | Community | Surface water |
| California Water Service - Stockton | San Joaquin | 176,266 | Community | Purchased surface water |
| Tracy, City of | San Joaquin | 96,609 | Community | Surface water |
| Manteca, City of | San Joaquin | 84,928 | Community | Purchased surface water |
| Lodi, City of | San Joaquin | 68,272 | Community | Surface water |
| City of Lathrop | San Joaquin | 35,080 | Community | Purchased surface 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, “Lawrence Livermore National Lab-Site 300, PWSID CA3910025, California”, https://aquacensus.com/water-systems/california/lawrence-livermore-national-lab-site-300-ca3910025 (data as of October 1, 2026).