Public water system · CA3310033
ActiveSanta Ana River Water Company
At a glance
Santa Ana River Water Company (PWSID CA3310033) is an active community water system in Riverside County, California. It reports serving 5,848 people through 1,772 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, 2 are health-based, and the most recent began in May 2017.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
5,848
Service connections
1,772
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Santa Ana River Water Company compare with other water systems in Riverside County?
By EPA's size categories, Santa Ana River Water Company is a medium system (3,301 to 10,000 people). Riverside County has 197 active public water systems. Its population served is about 59% below the county average of 14,435 people per system, and accounts for 0.2% of the 2,843,721 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 Santa Ana River Water Company is about 13% 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 Santa Ana River Water Company?
EPA lists Santa Ana River Water Company 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. 130 of the 197 active systems in Riverside County (66%) are also privately owned.
Does Santa Ana River Water Company have drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in May 2017. The violations listed here began between April 1989 and May 2017. By type: 8 monitoring and reporting, 2 public notice, recordkeeping or other and 2 contaminant level above the legal limit. The contaminant or rule involved most often is Haloacetic acids (HAA5) (3 of them). EPA lists 11 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 |
|---|---|---|---|---|
| 2017-05-10 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2016-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2008-06-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2008-06-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2005-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2005-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2004-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2004-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 1997-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1995-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1993-06-30 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1989-04-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | 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.
Santa Ana River Water Company: frequently asked questions
Who runs Santa Ana River Water Company?
Santa Ana River Water Company (PWSID CA3310033) is a community water system privately owned. It is regulated by the CA state drinking water program.
How many people does Santa Ana River Water Company serve?
Santa Ana River Water Company reports serving 5,848 people through 1,772 service connections in Riverside County, California.
Where does Santa Ana River Water Company 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 Santa Ana River Water Company have any drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in May 2017. 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 Santa Ana River Water Company'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, 2 are health-based, and the most recent began in May 2017. For current results, consult the system's annual water quality report, EPA ECHO, or the CA state drinking water program.
Where can I find Santa Ana River Water Company's water quality report?
As a community water system, Santa Ana River Water Company 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 Riverside County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Eastern Municipal Wd | Riverside | 666,581 | Community | Purchased surface water |
| Riverside, City of | Riverside | 298,398 | Community | Groundwater under influence of surface water |
| Coachella Vwd: Cove Community | Riverside | 270,000 | Community | Groundwater |
| Elsinore Valley Mwd | Riverside | 169,455 | Community | Surface water |
| Corona, City of | Riverside | 168,575 | Community | Purchased surface water |
| Rancho California Water District | Riverside | 146,147 | 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, “Santa Ana River Water Company, PWSID CA3310033, California”, https://aquacensus.com/water-systems/california/santa-ana-river-water-company-ca3310033 (data as of October 1, 2026).