Public water system · CA3400331
ActiveWesterner Mobile Home Park
At a glance
Westerner Mobile Home Park (PWSID CA3400331) is an active community water system in Sacramento County, California. It reports serving 65 people through 49 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2011.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
65
Service connections
49
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Westerner Mobile Home Park compare with other water systems in Sacramento County?
By EPA's size categories, Westerner Mobile Home Park is a very small system (500 people or fewer). Sacramento County has 164 active public water systems. Its population served is well below the county average of 10,325 people per system, and accounts for less than 0.1% of the 1,693,284 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 Westerner 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. 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 Westerner Mobile Home Park?
EPA lists Westerner 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. 115 of the 164 active systems in Sacramento County (70%) are also privately owned.
Does Westerner Mobile Home Park have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2011. The violations listed here began between December 2003 and July 2011. By type: 11 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminants or rules involved are Consumer Confidence Rule, Total coliform bacteria (TCR), Nitrite and Vinyl chloride. EPA lists 9 as archived and 3 as resolved. 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. 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 |
|---|---|---|---|---|
| 2011-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2006-12-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2005-08-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitritecode 1041 | No | Resolved |
| 2003-12-01 | Monitoring and reportingMonitoring, Regular · code 03 | Vinyl chloridecode 2976 | No | Archived |
| 2003-12-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1-Dichloroethylenecode 2977 | No | Archived |
| 2003-12-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1,1-Trichloroethanecode 2981 | No | Archived |
| 2003-12-01 | Monitoring and reportingMonitoring, Regular · code 03 | Methoxychlorcode 2015 | No | Archived |
| 2003-12-01 | Monitoring and reportingMonitoring, Regular · code 03 | Carbon tetrachloridecode 2982 | No | Archived |
| 2003-12-01 | Monitoring and reportingMonitoring, Regular · code 03 | Atrazinecode 2050 | No | Archived |
| 2003-12-01 | Monitoring and reportingMonitoring, Regular · code 03 | 2,4-Dcode 2105 | No | Archived |
| 2003-12-01 | Monitoring and reportingMonitoring, Regular · code 03 | cis-1,2-Dichloroethylenecode 2380 | No | Archived |
| 2003-12-01 | Monitoring and reportingMonitoring, Regular · code 03 | 2,4,5-TP (Silvex)code 2110 | No | Archived |
The 12 most recent 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.
Westerner Mobile Home Park: frequently asked questions
Who runs Westerner Mobile Home Park?
Westerner Mobile Home Park (PWSID CA3400331) is a community water system privately owned. It is regulated by the CA state drinking water program.
How many people does Westerner Mobile Home Park serve?
Westerner Mobile Home Park reports serving 65 people through 49 service connections in Sacramento County, California.
Where does Westerner Mobile Home Park 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 Westerner Mobile Home Park have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2011. 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 Westerner 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. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2011. For current results, consult the system's annual water quality report, EPA ECHO, or the CA state drinking water program.
Where can I find Westerner Mobile Home Park's water quality report?
As a community water system, Westerner 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 Sacramento County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Sacramento Main | Sacramento | 527,979 | Community | Surface water |
| Sacramento Suburban Water District | Sacramento | 194,444 | Community | Purchased surface water |
| Scwa - Laguna/Vineyard | Sacramento | 184,896 | Community | Surface water |
| Folsom, City of - Main | Sacramento | 80,969 | Community | Surface water |
| Citrus Heights Water District | Sacramento | 67,818 | Community | Purchased surface water |
| Cal Am - Suburban Rosemont | Sacramento | 54,793 | Community | Purchased surface water |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Westerner Mobile Home Park, PWSID CA3400331, California”, https://aquacensus.com/water-systems/california/westerner-mobile-home-park-ca3400331 (data as of October 1, 2026).