Public water system · CA5110002
ActiveCity of Yuba City
At a glance
City of Yuba City (PWSID CA5110002) is an active community water system in Sutter County, California. It reports serving 70,256 people through 19,116 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 10 are health-based, and the most recent began in January 2007.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
70,256
Service connections
19,116
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does City of Yuba City compare with other water systems in Sutter County?
By EPA's size categories, City of Yuba City is a large system (10,001 to 100,000 people). Sutter County has 35 active public water systems, and City of Yuba City is the largest of them by population served. Its population served is about 28 times the county average of 2,514 people per system, and accounts for 80% of the 87,991 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 City of Yuba City is about 10 times 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. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 609 California systems (8.1%) list surface water as their primary source.
Who owns and regulates City of Yuba City?
EPA lists City of Yuba City 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. 11 of the 35 active systems in Sutter County (31%) are also owned by a local government.
Does City of Yuba City have drinking water violations?
Of the 12 most recent violations in EPA's records, 10 are health-based, and the most recent began in January 2007. The violations listed here began between January 2005 and January 2007. By type: 9 required treatment not met, 2 monitoring and reporting and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Carbon, total (9 of them). EPA lists 12 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 |
|---|---|---|---|---|
| 2007-01-01 | Required treatment not metTreatment Technique Precursor Removal · code 46 | Carbon, totalcode 2920 | Yes | Resolved |
| 2006-10-01 | Required treatment not metTreatment Technique Precursor Removal · code 46 | Carbon, totalcode 2920 | Yes | Resolved |
| 2006-07-01 | Required treatment not metTreatment Technique Precursor Removal · code 46 | Carbon, totalcode 2920 | Yes | Resolved |
| 2006-04-01 | Required treatment not metTreatment Technique Precursor Removal · code 46 | Carbon, totalcode 2920 | Yes | Resolved |
| 2006-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2006-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2006-01-01 | Required treatment not metTreatment Technique Precursor Removal · code 46 | Carbon, totalcode 2920 | Yes | Resolved |
| 2005-10-01 | Required treatment not metTreatment Technique Precursor Removal · code 46 | Carbon, totalcode 2920 | Yes | Resolved |
| 2005-07-01 | Required treatment not metTreatment Technique Precursor Removal · code 46 | Carbon, totalcode 2920 | Yes | Resolved |
| 2005-04-01 | Required treatment not metTreatment Technique Precursor Removal · code 46 | Carbon, totalcode 2920 | Yes | Resolved |
| 2005-02-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2005-01-01 | Required treatment not metTreatment Technique Precursor Removal · code 46 | Carbon, totalcode 2920 | Yes | Resolved |
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.
City of Yuba City: frequently asked questions
Who runs City of Yuba City?
City of Yuba City (PWSID CA5110002) is a community water system owned by a local government. It is regulated by the CA state drinking water program.
How many people does City of Yuba City serve?
City of Yuba City reports serving 70,256 people through 19,116 service connections in Sutter County, California.
Where does City of Yuba City get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does City of Yuba City have any drinking water violations?
Of the 12 most recent violations in EPA's records, 10 are health-based, and the most recent began in January 2007. 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 City of Yuba City'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, 10 are health-based, and the most recent began in January 2007. For current results, consult the system's annual water quality report, EPA ECHO, or the CA state drinking water program.
Where can I find City of Yuba City's water quality report?
As a community water system, City of Yuba City 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 Sutter County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Live Oak | Sutter | 9,285 | Community | Groundwater |
| Sutter Community S.D. | Sutter | 2,904 | Community | Groundwater |
| National American Corp. Lp-Lake Minden | Sutter | 1,065 | Transient non-community | Groundwater |
| Church of Glad Tidings | Sutter | 878 | Non-transient non-community | Groundwater |
| Wildewood East Mutual | Sutter | 350 | Community | Groundwater |
| East Nicolaus Joint Union High School | Sutter | 330 | 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, “City of Yuba City, PWSID CA5110002, California”, https://aquacensus.com/water-systems/california/city-of-yuba-city-ca5110002 (data as of October 1, 2026).