Public water system · CA5610043
ActiveTriunfo Water & Sanitation District
At a glance
Triunfo Water & Sanitation District (PWSID CA5610043) is an active community water system in Ventura County, California. It reports serving 13,898 people through 4,603 service connections. Its primary water source is purchased surface water, and EPA lists it as privately owned. EPA's records list 5 violations for this system; 4 are health-based, and the most recent began in July 2004.
This page covers its drinking water system only; sewer and wastewater service are not part of EPA's drinking water records.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
13,898
Service connections
4,603
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Triunfo Water & Sanitation District compare with other water systems in Ventura County?
By EPA's size categories, Triunfo Water & Sanitation District is a large system (10,001 to 100,000 people). Ventura County has 95 active public water systems. Its population served is about 50% above the county average of 9,293 people per system, and accounts for 1.6% of the 882,799 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 Triunfo Water & Sanitation District is about twice 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 Triunfo Water & Sanitation District?
EPA lists Triunfo Water & Sanitation District 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. 59 of the 95 active systems in Ventura County (62%) are also privately owned.
Does Triunfo Water & Sanitation District have drinking water violations?
EPA's records list 5 violations for this system; 4 are health-based, and the most recent began in July 2004. The violations listed here began between January 1993 and July 2004. By type: 4 contaminant level above the legal limit and 1 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (5 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 |
|---|---|---|---|---|
| 2004-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2002-05-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2000-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1998-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1993-01-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | Total coliform bacteria (TCR)code 3100 | No | 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.
Triunfo Water & Sanitation District: frequently asked questions
Who runs Triunfo Water & Sanitation District?
Triunfo Water & Sanitation District (PWSID CA5610043) is a community water system privately owned. It is regulated by the CA state drinking water program.
How many people does Triunfo Water & Sanitation District serve?
Triunfo Water & Sanitation District reports serving 13,898 people through 4,603 service connections in Ventura County, California.
Where does Triunfo Water & Sanitation 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 Triunfo Water & Sanitation District have any drinking water violations?
EPA's records list 5 violations for this system; 4 are health-based, and the most recent began in July 2004. 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 Triunfo Water & Sanitation 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; 4 are health-based, and the most recent began in July 2004. For current results, consult the system's annual water quality report, EPA ECHO, or the CA state drinking water program.
Where can I find Triunfo Water & Sanitation District's water quality report?
As a community water system, Triunfo Water & Sanitation District 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 Ventura County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Oxnard Water Dept | Ventura | 200,232 | Community | Purchased surface water |
| Ventura Water Department | Ventura | 113,500 | Community | Surface water |
| Ventura Wwd No. 8 - Simi Valley | Ventura | 94,738 | Community | Purchased surface water |
| Cal American Water Co | Ventura | 66,809 | Community | Purchased surface water |
| City of Thousand Oaks Water Department | Ventura | 53,157 | Community | Purchased surface water |
| Camarillo Water Dept | Ventura | 46,824 | 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, “Triunfo Water & Sanitation District, PWSID CA5610043, California”, https://aquacensus.com/water-systems/california/triunfo-water-sanitation-district-ca5610043 (data as of October 1, 2026).