Public water system · IA4236005
ActiveEldora Water Supply
At a glance
Eldora Water Supply (PWSID IA4236005) is an active community water system in Hardin County, Iowa. It reports serving 2,664 people through 1,266 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; none is health-based, and the most recent began in October 1992.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
2,664
Service connections
1,266
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Eldora Water Supply compare with other water systems in Hardin County?
By EPA's size categories, Eldora Water Supply is a small system (501 to 3,300 people). Hardin County has 22 active public water systems, and Eldora Water Supply is the 2nd-largest of them by population served. Its population served is about 4.2 times the county average of 633 people per system, and accounts for 19% 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 Eldora Water Supply is about 60% 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 Eldora Water Supply?
EPA lists Eldora 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. 12 of the 22 active systems in Hardin County (55%) are also owned by a local government.
Does Eldora Water Supply have drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in October 1992. The violations listed here began between January 1992 and October 1992. By type: 3 monitoring and reporting. The contaminants or rules involved are Benzene, Toluene and Xylenes, Total. 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 |
|---|---|---|---|---|
| 1992-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Benzenecode 2990 | No | Resolved |
| 1992-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Toluenecode 2991 | No | Resolved |
| 1992-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Xylenes, Totalcode 2955 | No | 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.
Eldora Water Supply: frequently asked questions
Who runs Eldora Water Supply?
Eldora Water Supply (PWSID IA4236005) is a community water system owned by a local government. It is regulated by the IA state drinking water program.
How many people does Eldora Water Supply serve?
Eldora Water Supply reports serving 2,664 people through 1,266 service connections in Hardin County, Iowa.
Where does Eldora 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 Eldora Water Supply have any drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in October 1992. 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 Eldora 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; none is health-based, and the most recent began in October 1992. For current results, consult the system's annual water quality report, EPA ECHO, or the IA state drinking water program.
Where can I find Eldora Water Supply's water quality report?
As a community water system, Eldora 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 Hardin County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Iowa Falls Water Department | Hardin | 5,146 | Community | Groundwater |
| Ackley Municipal Water Works | Hardin | 1,599 | 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, “Eldora Water Supply, PWSID IA4236005, Iowa”, https://aquacensus.com/water-systems/iowa/eldora-water-supply-ia4236005 (data as of October 1, 2026).