Public water system · IA4201001
ActiveAckley Municipal Water Works
At a glance
Ackley Municipal Water Works (PWSID IA4201001) is an active community water system in Hardin County, Iowa. It reports serving 1,599 people through 820 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 7 violations for this system; 1 is health-based, and the most recent began in October 2022.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,599
Service connections
820
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Ackley Municipal Water Works compare with other water systems in Hardin County?
By EPA's size categories, Ackley Municipal Water Works is a small system (501 to 3,300 people). Hardin County has 22 active public water systems, and Ackley Municipal Water Works is the 3rd-largest of them by population served. Its population served is about 153% above the county average of 633 people per system, and accounts for 11% of the 13,920 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 Ackley Municipal 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. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 1,502 Iowa systems (82%) list groundwater as their primary source.
Who owns and regulates Ackley Municipal Water Works?
EPA lists Ackley Municipal 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. 12 of the 22 active systems in Hardin County (55%) are also owned by a local government.
Does Ackley Municipal Water Works have drinking water violations?
EPA's records list 7 violations for this system; 1 is health-based, and the most recent began in October 2022. The violations listed here began between January 1988 and October 2022. By type: 5 monitoring and reporting, 1 public notice, recordkeeping or other and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Nitrate (2 of them). EPA lists 7 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 |
|---|---|---|---|---|
| 2022-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2020-08-07 | Public notice, recordkeeping or otherFailure to Consult with State · code 20 | Groundwater Rulecode 0700 | No | Resolved |
| 2019-08-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2019-08-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2009-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Asbestoscode 1094 | No | Resolved |
| 1997-05-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1988-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
All 7 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.
Ackley Municipal Water Works: frequently asked questions
Who runs Ackley Municipal Water Works?
Ackley Municipal Water Works (PWSID IA4201001) is a community water system owned by a local government. It is regulated by the IA state drinking water program.
How many people does Ackley Municipal Water Works serve?
Ackley Municipal Water Works reports serving 1,599 people through 820 service connections in Hardin County, Iowa.
Where does Ackley Municipal Water Works 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 Ackley Municipal Water Works have any drinking water violations?
EPA's records list 7 violations for this system; 1 is health-based, and the most recent began in October 2022. 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 Ackley Municipal 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 7 violations for this system; 1 is health-based, and the most recent began in October 2022. For current results, consult the system's annual water quality report, EPA ECHO, or the IA state drinking water program.
Where can I find Ackley Municipal Water Works' water quality report?
As a community water system, Ackley Municipal 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 Hardin County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Iowa Falls Water Department | Hardin | 5,146 | Community | Groundwater |
| Eldora Water Supply | Hardin | 2,664 | Community | Groundwater |
| Hubbard Water Supply | Hardin | 860 | Community | Groundwater |
| Alden Water Supply | Hardin | 763 | Community | Groundwater |
| Radcliffe Municipal Water | Hardin | 561 | Community | Groundwater |
| Union Water Supply | Hardin | 399 | Community | 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, “Ackley Municipal Water Works, PWSID IA4201001, Iowa”, https://aquacensus.com/water-systems/iowa/ackley-municipal-water-works-ia4201001 (data as of October 1, 2026).