Public water system · IA0505077
ActiveAudubon Water Supply
At a glance
Audubon Water Supply (PWSID IA0505077) is an active community water system in Audubon County, Iowa. It reports serving 2,053 people through 1,200 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 3 violations for this system; 2 are health-based, and the most recent began in October 2007.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
2,053
Service connections
1,200
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Audubon Water Supply compare with other water systems in Audubon County?
By EPA's size categories, Audubon Water Supply is a small system (501 to 3,300 people). Audubon County has 5 active public water systems, and Audubon Water Supply is the largest of them by population served. Its population served is about 3.1 times the county average of 654 people per system, and accounts for 63% of the 3,272 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 Audubon Water Supply 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 Audubon Water Supply?
EPA lists Audubon Water Supply 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 5 active systems in Audubon County (100%) are also owned by a local government.
Does Audubon Water Supply have drinking water violations?
EPA's records list 3 violations for this system; 2 are health-based, and the most recent began in October 2007. The violations listed here began between March 1992 and October 2007. By type: 2 contaminant level above the legal limit and 1 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (2 of them). EPA lists 3 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 |
|---|---|---|---|---|
| 2007-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2001-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1992-03-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Acute (TCR) · code 21 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
All 3 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.
Audubon Water Supply: frequently asked questions
Who runs Audubon Water Supply?
Audubon Water Supply (PWSID IA0505077) is a community water system owned by a local government. It is regulated by the IA state drinking water program.
How many people does Audubon Water Supply serve?
Audubon Water Supply reports serving 2,053 people through 1,200 service connections in Audubon County, Iowa.
Where does Audubon Water Supply 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 Audubon Water Supply have any drinking water violations?
EPA's records list 3 violations for this system; 2 are health-based, and the most recent began in October 2007. 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 Audubon Water Supply'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 3 violations for this system; 2 are health-based, and the most recent began in October 2007. For current results, consult the system's annual water quality report, EPA ECHO, or the IA state drinking water program.
Where can I find Audubon Water Supply's water quality report?
As a community water system, Audubon Water Supply 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 Audubon County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Exira Water Dept | Audubon | 764 | Community | Purchased groundwater |
| Kimballton Utilities | Audubon | 287 | Community | Groundwater |
| Brayton Water System | Audubon | 143 | Community | Purchased groundwater |
| Littlefield Rec Area | Audubon | 25 | Transient non-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, “Audubon Water Supply, PWSID IA0505077, Iowa”, https://aquacensus.com/water-systems/iowa/audubon-water-supply-ia0505077 (data as of October 1, 2026).