Public water system · IA8938026
ActiveKeosauqua Water Works
At a glance
Keosauqua Water Works (PWSID IA8938026) is an active community water system in Van Buren County, Iowa. It reports serving 961 people through 583 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's records list 10 violations for this system; 5 are health-based, and the most recent began in April 2023.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
961
Service connections
583
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Keosauqua Water Works compare with other water systems in Van Buren County?
By EPA's size categories, Keosauqua Water Works is a small system (501 to 3,300 people). Van Buren County has 7 active public water systems, and Keosauqua Water Works is the largest of them by population served. Its population served is about twice the county average of 456 people per system, and accounts for 30% of the 3,195 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 Keosauqua 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 Keosauqua Water Works?
EPA lists Keosauqua 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. 7 of the 7 active systems in Van Buren County (100%) are also owned by a local government.
Does Keosauqua Water Works have drinking water violations?
EPA's records list 10 violations for this system; 5 are health-based, and the most recent began in April 2023. The violations listed here began between October 1978 and April 2023. By type: 5 contaminant level above the legal limit, 4 monitoring and reporting and 1 monitoring. The contaminant or rule involved most often is Fluoride (5 of them). EPA lists 5 as resolved and 5 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 |
|---|---|---|---|---|
| 2023-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2023-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2017-03-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 1996-02-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1991-12-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1984-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01 | Fluoridecode 1025 | Yes | Archived |
| 1983-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01 | Fluoridecode 1025 | Yes | Archived |
| 1978-12-19 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Fluoridecode 1025 | Yes | Archived |
| 1978-10-23 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Fluoridecode 1025 | Yes | Archived |
| 1978-10-23 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Fluoridecode 1025 | Yes | Archived |
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.
Keosauqua Water Works: frequently asked questions
Who runs Keosauqua Water Works?
Keosauqua Water Works (PWSID IA8938026) is a community water system owned by a local government. It is regulated by the IA state drinking water program.
How many people does Keosauqua Water Works serve?
Keosauqua Water Works reports serving 961 people through 583 service connections in Van Buren County, Iowa.
Where does Keosauqua 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 Keosauqua Water Works have any drinking water violations?
EPA's records list 10 violations for this system; 5 are health-based, and the most recent began in April 2023. 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 Keosauqua 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 10 violations for this system; 5 are health-based, and the most recent began in April 2023. For current results, consult the system's annual water quality report, EPA ECHO, or the IA state drinking water program.
Where can I find Keosauqua Water Works' water quality report?
As a community water system, Keosauqua 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 Van Buren County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Farmington Water Supply | Van Buren | 601 | Community | Purchased groundwater |
| Bonaparte Water Supply | Van Buren | 390 | Community | Purchased surface water |
| Milton Water Supply | Van Buren | 380 | Community | Purchased surface water |
| Birmingham Water Supply | Van Buren | 367 | Community | Purchased surface water |
| Stockport Water Supply | Van Buren | 272 | Community | Purchased surface water |
| Cantril Water Supply | Van Buren | 224 | 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, “Keosauqua Water Works, PWSID IA8938026, Iowa”, https://aquacensus.com/water-systems/iowa/keosauqua-water-works-ia8938026 (data as of October 1, 2026).