Public water system · CA3910302
ActiveSan Joaquin Fair - 2nd District
At a glance
San Joaquin Fair - 2nd District (PWSID CA3910302) is an active transient non-community water system in San Joaquin County, California. It reports serving 110 people through 48 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a state government. EPA's records list 5 violations for this system; 3 are health-based, and the most recent began in August 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
110
Service connections
48
Primary source
SWP
Purchased surface water
System type
TNCWS
Transient non-community water system
System record
How does San Joaquin Fair - 2nd District compare with other water systems in San Joaquin County?
By EPA's size categories, San Joaquin Fair - 2nd District 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 transient non-community water system reports serving 144 people, so San Joaquin Fair - 2nd District is about 24% 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. 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 San Joaquin Fair - 2nd District?
EPA lists San Joaquin Fair - 2nd District as owned by a state 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 a state government.
Does San Joaquin Fair - 2nd District have drinking water violations?
EPA's records list 5 violations for this system; 3 are health-based, and the most recent began in August 2024. The violations listed here began between November 2002 and August 2024. By type: 2 contaminant level above the legal limit, 1 required treatment not met, 1 monitoring and 1 monitoring and reporting. The contaminant or rule involved most often is Revised Total Coliform Rule (3 of them). EPA lists 5 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2024-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, E. coli (RTCR) · code 1A | Revised Total Coliform Rulecode 8000 | Yes | Resolved |
| 2019-02-01 | Required treatment not metTreatment Technique, Level 1 Assessment (RTCR) · code 2A | Revised Total Coliform Rulecode 8000 | Yes | Resolved |
| 2018-06-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2005-01-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2002-11-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
All 5 violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
San Joaquin Fair - 2nd District: frequently asked questions
Who runs San Joaquin Fair - 2nd District?
San Joaquin Fair - 2nd District (PWSID CA3910302) is a transient non-community water system owned by a state government. It is regulated by the CA state drinking water program.
How many people does San Joaquin Fair - 2nd District serve?
San Joaquin Fair - 2nd District reports serving 110 people through 48 service connections in San Joaquin County, California.
Where does San Joaquin Fair - 2nd District 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 San Joaquin Fair - 2nd District have any drinking water violations?
EPA's records list 5 violations for this system; 3 are health-based, and the most recent began in August 2024. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is San Joaquin Fair - 2nd District'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 records list 5 violations for this system; 3 are health-based, and the most recent began in August 2024. For current results, consult EPA ECHO, or the CA state drinking water program.
Where can I find San Joaquin Fair - 2nd District's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. San Joaquin Fair - 2nd District 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 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, “San Joaquin Fair - 2nd District, PWSID CA3910302, California”, https://aquacensus.com/water-systems/california/san-joaquin-fair-2nd-district-ca3910302 (data as of October 1, 2026).