Public water system · CA0103041
ActiveTrailer Haven Mobile Home Park
At a glance
Trailer Haven Mobile Home Park (PWSID CA0103041) is an active community water system in Alameda County, California. It reports serving 459 people through 191 service connections. Its primary water source is purchased surface water, and EPA lists it as privately owned. EPA's records list 3 violations for this system; none is health-based, and the most recent began in September 1994.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
459
Service connections
191
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Trailer Haven Mobile Home Park compare with other water systems in Alameda County?
By EPA's size categories, Trailer Haven Mobile Home Park is a very small system (500 people or fewer). Alameda County has 27 active public water systems. Its population served is well below the county average of 83,320 people per system, and accounts for less than 0.1% of the 2,249,634 people reported by systems filed under the county. Across California, the 7,479 active systems average 5,706 people each. Nationally, the average active community water system reports serving 6,703 people, so Trailer Haven Mobile Home Park is well below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. California has 2,997 active 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 Trailer Haven Mobile Home Park?
EPA lists Trailer Haven Mobile Home Park 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. 8 of the 27 active systems in Alameda County (30%) are also privately owned.
Does Trailer Haven Mobile Home Park have drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in September 1994. The violations listed here began between October 1981 and September 1994. By type: 3 monitoring and reporting. The contaminants or rules involved are Total coliform bacteria (TCR), Lead and Copper Rule and Gross alpha (excluding radon and uranium). EPA lists 2 as resolved and 1 as archived. 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. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 1994-09-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1993-07-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1981-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Archived |
All 3 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.
Trailer Haven Mobile Home Park: frequently asked questions
Who runs Trailer Haven Mobile Home Park?
Trailer Haven Mobile Home Park (PWSID CA0103041) is a community water system privately owned. It is regulated by the CA state drinking water program.
How many people does Trailer Haven Mobile Home Park serve?
Trailer Haven Mobile Home Park reports serving 459 people through 191 service connections in Alameda County, California.
Where does Trailer Haven Mobile Home Park 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 Trailer Haven Mobile Home Park have any drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in September 1994. 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 Trailer Haven Mobile Home Park'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 3 violations for this system; none is health-based, and the most recent began in September 1994. For current results, consult the system's annual water quality report, EPA ECHO, or the CA state drinking water program.
Where can I find Trailer Haven Mobile Home Park's water quality report?
As a community water system, Trailer Haven Mobile Home Park must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Alameda County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| East Bay MUD | Alameda | 1,442,800 | Community | Surface water |
| Alameda County Water District | Alameda | 344,000 | Community | Surface water |
| City of Hayward | Alameda | 162,954 | Community | Purchased surface water |
| Dublin San Ramon Services District | Alameda | 98,776 | Community | Purchased surface water |
| City of Pleasanton | Alameda | 76,689 | Community | Purchased surface water |
| California Water Service - Livermore | Alameda | 60,414 | 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, “Trailer Haven Mobile Home Park, PWSID CA0103041, California”, https://aquacensus.com/water-systems/california/trailer-haven-mobile-home-park-ca0103041 (data as of October 1, 2026).