Public water system · AZ0414024
ActiveCity of Yuma
At a glance
City of Yuma (PWSID AZ0414024) is an active community water system in Yuma County, Arizona. It reports serving 103,264 people through 32,641 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, 3 are health-based, and the most recent began in June 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
103,264
Service connections
32,641
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does City of Yuma compare with other water systems in Yuma County?
By EPA's size categories, City of Yuma is a very large system (more than 100,000 people). Yuma County has 50 active public water systems, and City of Yuma is the largest of them by population served. Its population served is about 24 times the county average of 4,392 people per system, and accounts for 47% of the 219,583 people reported by systems filed under the county. Across Arizona, the 1,769 active systems average 4,369 people each. Nationally, the average active community water system reports serving 6,703 people, so City of Yuma is about 15 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. Arizona has 936 active community water systems, 53% of the state's 1,769 active systems. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 61 Arizona systems (3.4%) list surface water as their primary source.
Who owns and regulates City of Yuma?
EPA lists City of Yuma as owned by a local government. The AZ state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 9 of the 50 active systems in Yuma County (18%) are also owned by a local government.
Does City of Yuma have drinking water violations?
Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in June 2025. The violations listed here began between December 2021 and June 2025. By type: 5 monitoring and reporting, 4 public notice, recordkeeping or other and 3 disinfectant level above the legal limit. The contaminant or rule involved most often is Chlorine dioxide (6 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 |
|---|---|---|---|---|
| 2025-06-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorine dioxidecode 1008 | No | Resolved |
| 2024-12-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorine dioxidecode 1008 | No | Resolved |
| 2024-12-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chloritecode 1009 | No | Resolved |
| 2022-03-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2022-03-01 | Disinfectant level above the legal limitAcute Maximum Residual Disinfectant Level · code 13 | Chlorine dioxidecode 1008 | Yes | Resolved |
| 2022-02-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorine dioxidecode 1008 | No | Resolved |
| 2022-02-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chloritecode 1009 | No | Resolved |
| 2022-02-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2022-02-01 | Disinfectant level above the legal limitAcute Maximum Residual Disinfectant Level · code 13 | Chlorine dioxidecode 1008 | Yes | Resolved |
| 2022-01-01 | Disinfectant level above the legal limitAcute Maximum Residual Disinfectant Level · code 13 | Chlorine dioxidecode 1008 | Yes | Resolved |
| 2022-01-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2021-12-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | 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 Yuma: frequently asked questions
Who runs City of Yuma?
City of Yuma (PWSID AZ0414024) is a community water system owned by a local government. It is regulated by the AZ state drinking water program.
How many people does City of Yuma serve?
City of Yuma reports serving 103,264 people through 32,641 service connections in Yuma County, Arizona.
Where does City of Yuma 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 Yuma have any drinking water violations?
Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in June 2025. 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 Yuma'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, 3 are health-based, and the most recent began in June 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the AZ state drinking water program.
Where can I find City of Yuma's water quality report?
As a community water system, City of Yuma 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 Yuma County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| San Luis City of | Yuma | 39,705 | Community | Groundwater |
| Foothills Water and Sewer LLC | Yuma | 32,425 | Community | Surface water |
| Somerton City of | Yuma | 14,197 | Community | Groundwater |
| Usmc Yuma Main System | Yuma | 8,353 | Community | Surface water |
| Aspc Yuma | Yuma | 4,197 | Community | Groundwater |
| Wellton Town of | Yuma | 3,000 | Community | 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, “City of Yuma, PWSID AZ0414024, Arizona”, https://aquacensus.com/water-systems/arizona/city-of-yuma-az0414024 (data as of October 1, 2026).