Public water system · IA5107089

Active

Batavia Water Works

At a glance

Batavia Water Works (PWSID IA5107089) is an active community water system in Jefferson County, Iowa. It reports serving 430 people through 278 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's records list 11 violations for this system; 1 is health-based, and the most recent began in January 2025.

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

Population served

430

Service connections

278

Primary source

SWP

Purchased surface water

System type

CWS

Community water system

System record

PWSIDIA5107089

System typeCommunity water system

Activity statusActive

Population served430

Service connections278

Primary water sourcePurchased surface water

Owner typeLocal government

Primacy agencyIA state drinking water program

City servedBatavia

StateIowa

ZIP—

CountyJefferson County

How does Batavia Water Works compare with other water systems in Jefferson County?

By EPA's size categories, Batavia Water Works is a very small system (500 people or fewer). Jefferson County has 8 active public water systems, and Batavia Water Works is the 3rd-largest of them by population served. Its population served is well below the county average of 1,442 people per system, and accounts for 3.7% of the 11,535 people reported by systems filed under the county. Across Iowa, the 1,828 active systems average 1,718 people each. Nationally, the average active community water system reports serving 6,703 people, so Batavia Water Works is well below 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. Iowa has 1,084 active community water systems, 59% of the state's 1,828 active systems. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 119 Iowa systems (6.5%) list purchased surface water as their primary source.

Who owns and regulates Batavia Water Works?

EPA lists Batavia Water Works as owned by a local government. The IA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 5 of the 8 active systems in Jefferson County (63%) are also owned by a local government.

Does Batavia Water Works have drinking water violations?

EPA's records list 11 violations for this system; 1 is health-based, and the most recent began in January 2025. The violations listed here began between October 1991 and January 2025. By type: 9 monitoring and reporting, 1 monitoring and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (6 of them). EPA lists 11 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
2025-01-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2019-10-01	Monitoring and reportingMonitoring, Regular · code 03	Nitritecode 1041	No	Resolved
2018-10-01	Monitoring and reportingMonitoring, Regular · code 03	Nitritecode 1041	No	Resolved
2012-09-01	Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24	Total coliform bacteria (TCR)code 3100	No	Resolved
2011-07-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Total trihalomethanes (TTHM)code 2950	No	Resolved
2011-07-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Haloacetic acids (HAA5)code 2456	No	Resolved
2007-08-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2004-12-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
2004-10-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
1992-05-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
1991-10-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved

All 11 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.

Batavia Water Works: frequently asked questions

Who runs Batavia Water Works?

Batavia Water Works (PWSID IA5107089) is a community water system owned by a local government. It is regulated by the IA state drinking water program.

How many people does Batavia Water Works serve?

Batavia Water Works reports serving 430 people through 278 service connections in Jefferson County, Iowa.

Where does Batavia Water Works get its water?

EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.

Does Batavia Water Works have any drinking water violations?

EPA's records list 11 violations for this system; 1 is health-based, and the most recent began in January 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 Batavia Water Works' 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 11 violations for this system; 1 is health-based, and the most recent began in January 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the IA state drinking water program.

Where can I find Batavia Water Works' water quality report?

As a community water system, Batavia Water Works 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 Jefferson County

Water system	County	Population served	Type	Source
Fairfield Water Supply	Jefferson	9,821	Community	Groundwater
Jefferson County Rural Water District	Jefferson	468	Community	Purchased surface water
Libertyville Water Works	Jefferson	304	Community	Purchased groundwater
Lockridge Muni Water Supply	Jefferson	244	Community	Purchased groundwater
Fairfield Estates Mobile Home Park	Jefferson	140	Community	Purchased groundwater
Ila Campus LLC	Jefferson	68	Community	Purchased 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, “Batavia Water Works, PWSID IA5107089, Iowa”, https://aquacensus.com/water-systems/iowa/batavia-water-works-ia5107089 (data as of October 1, 2026).