Public water system · CA3310003

Active

Blythe - City of

At a glance

City of Blythe - (PWSID CA3310003) is an active community water system in Riverside County, California. It reports serving 9,798 people through 3,399 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; 6 are health-based, and the most recent began in January 2021.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

9,798

Service connections

3,399

Primary source

Groundwater

System type

CWS

Community water system

System record

PWSIDCA3310003

System typeCommunity water system

Activity statusActive

Population served9,798

Service connections3,399

Primary water sourceGroundwater

Owner typeLocal government

Primacy agencyCA state drinking water program

City servedBlythe

StateCalifornia

ZIP—

CountyRiverside County

How does City of Blythe - compare with other water systems in Riverside County?

By EPA's size categories, City of Blythe - is a medium system (3,301 to 10,000 people). Riverside County has 197 active public water systems. Its population served is about 32% below the county average of 14,435 people per system, and accounts for 0.3% 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 City of Blythe - is about 46% 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 City of Blythe -?

EPA lists City of Blythe - 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. 50 of the 197 active systems in Riverside County (25%) are also owned by a local government.

Does City of Blythe - have drinking water violations?

EPA's records list 9 violations for this system; 6 are health-based, and the most recent began in January 2021. The violations listed here began between January 1989 and January 2021. By type: 6 contaminant level above the legal limit, 2 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Total coliform bacteria (TCR) (5 of them). EPA lists 8 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
2021-01-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Total trihalomethanes (TTHM)code 2950	No	Resolved
2021-01-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Haloacetic acids (HAA5)code 2456	No	Resolved
2016-01-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Haloacetic acids (HAA5)code 2456	Yes	Resolved
2011-09-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
2002-07-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
1996-08-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
1996-04-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
1992-12-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
1989-01-01	Public notice, recordkeeping or otherNotification, Public · code 06	Not reported	No	Archived

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.

City of Blythe -: frequently asked questions

Who runs City of Blythe -?

City of Blythe - (PWSID CA3310003) 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 Blythe - serve?

City of Blythe - reports serving 9,798 people through 3,399 service connections in Riverside County, California.

Where does City of Blythe - 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 City of Blythe - have any drinking water violations?

EPA's records list 9 violations for this system; 6 are health-based, and the most recent began in January 2021. 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 Blythe -'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; 6 are health-based, and the most recent began in January 2021. 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 Blythe -'s water quality report?

As a community water system, City of Blythe - 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, “Blythe - City of, PWSID CA3310003, California”, https://aquacensus.com/water-systems/california/blythe-city-of-ca3310003 (data as of October 1, 2026).