Public water system · CA5810003
ActiveOlivehurst Public U.D.
At a glance
Olivehurst Public U.D. (PWSID CA5810003) is an active community water system in Yuba County, California. It reports serving 16,595 people through 4,434 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 9 violations for this system; 2 are health-based, and the most recent began in January 2022.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
16,595
Service connections
4,434
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Olivehurst Public U.D. compare with other water systems in Yuba County?
By EPA's size categories, Olivehurst Public U.D. is a large system (10,001 to 100,000 people). Yuba County has 62 active public water systems, and Olivehurst Public U.D. is the 3rd-largest of them by population served. Its population served is about 9.1 times the county average of 1,823 people per system, and accounts for 15% of the 113,008 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 Olivehurst Public U.D. is about 148% above 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 Olivehurst Public U.D.?
EPA lists Olivehurst Public U.D. as owned by a local 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. 8 of the 62 active systems in Yuba County (13%) are also owned by a local government.
Does Olivehurst Public U.D. have drinking water violations?
EPA's records list 9 violations for this system; 2 are health-based, and the most recent began in January 2022. The violations listed here began between January 2003 and January 2022. By type: 6 monitoring and reporting, 2 contaminant level above the legal limit and 1 monitoring. The contaminant or rule involved most often is Total coliform bacteria (TCR) (6 of them). EPA lists 9 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 |
|---|---|---|---|---|
| 2022-01-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2007-05-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2006-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2006-02-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2006-01-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2005-12-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2005-06-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2004-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2003-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
All 9 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.
Olivehurst Public U.D.: frequently asked questions
Who runs Olivehurst Public U.D.?
Olivehurst Public U.D. (PWSID CA5810003) is a community water system owned by a local government. It is regulated by the CA state drinking water program.
How many people does Olivehurst Public U.D. serve?
Olivehurst Public U.D. reports serving 16,595 people through 4,434 service connections in Yuba County, California.
Where does Olivehurst Public U.D. 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 Olivehurst Public U.D. have any drinking water violations?
EPA's records list 9 violations for this system; 2 are health-based, and the most recent began in January 2022. 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 Olivehurst Public U.D.'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 9 violations for this system; 2 are health-based, and the most recent began in January 2022. For current results, consult the system's annual water quality report, EPA ECHO, or the CA state drinking water program.
Where can I find Olivehurst Public U.D.'s water quality report?
As a community water system, Olivehurst Public U.D. 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 Yuba County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Linda County Water District | Yuba | 21,654 | Community | Groundwater |
| Yuba County Motorplex | Yuba | 18,000 | Transient non-community | Groundwater |
| Cal-Water Service Co.-Marysville | Yuba | 12,419 | Community | Groundwater |
| Plumas Lake | Yuba | 10,464 | Community | Groundwater |
| Beale Air Force Base | Yuba | 6,785 | Community | Groundwater |
| Lake of the Springs | Yuba | 6,500 | Non-transient non-community | Groundwater |
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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, “Olivehurst Public U.D., PWSID CA5810003, California”, https://aquacensus.com/water-systems/california/olivehurst-public-u-d-ca5810003 (data as of October 1, 2026).