Public water system · CA3310006

Active

Banning, City of

At a glance

City of Banning (PWSID CA3310006) is an active community water system in Riverside County, California. It reports serving 31,680 people through 12,818 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 10 violations for this system; 7 are health-based, and the most recent began in January 2021.

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

Population served

31,680

Service connections

12,818

Primary source

Groundwater

System type

CWS

Community water system

System record

PWSIDCA3310006

System typeCommunity water system

Activity statusActive

Population served31,680

Service connections12,818

Primary water sourceGroundwater

Owner typeLocal government

Primacy agencyCA state drinking water program

City servedBanning

StateCalifornia

ZIP—

CountyRiverside County

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

By EPA's size categories, City of Banning is a large system (10,001 to 100,000 people). Riverside County has 197 active public water systems. Its population served is about twice the county average of 14,435 people per system, and accounts for 1.1% 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 Banning is about 4.7 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. 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 Banning?

EPA lists City of Banning 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 Banning have drinking water violations?

EPA's records list 10 violations for this system; 7 are health-based, and the most recent began in January 2021. The violations listed here began between April 1993 and January 2021. By type: 7 contaminant level above the legal limit and 3 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (8 of them). EPA lists 10 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
2021-01-01	Monitoring and reportingMonitoring, Regular · code 03	Nitratecode 1040	No	Resolved
2011-05-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2005-10-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Total trihalomethanes (TTHM)code 2950	No	Resolved
2004-08-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
2003-12-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
2000-06-01	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
1993-12-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
1993-05-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
1993-04-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved

All 10 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 Banning: frequently asked questions

Who runs City of Banning?

City of Banning (PWSID CA3310006) 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 Banning serve?

City of Banning reports serving 31,680 people through 12,818 service connections in Riverside County, California.

Where does City of Banning 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 Banning have any drinking water violations?

EPA's records list 10 violations for this system; 7 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 Banning'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 10 violations for this system; 7 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 Banning's water quality report?

As a community water system, City of Banning 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, “Banning, City of, PWSID CA3310006, California”, https://aquacensus.com/water-systems/california/banning-city-of-ca3310006 (data as of October 1, 2026).