Public water system · IA3383014
ActiveWest Union Water Supply
At a glance
West Union Water Supply (PWSID IA3383014) is an active community water system in Fayette County, Iowa. It reports serving 2,540 people through 1,152 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; all are health-based, and the most recent began in April 1991.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
2,540
Service connections
1,152
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does West Union Water Supply compare with other water systems in Fayette County?
By EPA's size categories, West Union Water Supply is a small system (501 to 3,300 people). Fayette County has 23 active public water systems, and West Union Water Supply is the 2nd-largest of them by population served. Its population served is about 4 times the county average of 634 people per system, and accounts for 17% of the 14,592 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 West Union Water Supply is about 62% 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 West Union Water Supply?
EPA lists West Union 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 23 active systems in Fayette County (52%) are also owned by a local government.
Does West Union Water Supply have drinking water violations?
EPA's records list 3 violations for this system; all are health-based, and the most recent began in April 1991. The violations listed here began between September 1979 and April 1991. By type: 3 contaminant level above the legal limit. The contaminant or rule involved most often is Nitrate (3 of them). EPA lists 2 as archived and 1 as resolved. 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. 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 |
|---|---|---|---|---|
| 1991-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Nitratecode 1040 | Yes | Resolved |
| 1981-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Nitratecode 1040 | Yes | Archived |
| 1979-09-21 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Nitratecode 1040 | Yes | Archived |
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.
West Union Water Supply: frequently asked questions
Who runs West Union Water Supply?
West Union Water Supply (PWSID IA3383014) is a community water system owned by a local government. It is regulated by the IA state drinking water program.
How many people does West Union Water Supply serve?
West Union Water Supply reports serving 2,540 people through 1,152 service connections in Fayette County, Iowa.
Where does West Union 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 West Union Water Supply have any drinking water violations?
EPA's records list 3 violations for this system; all are health-based, and the most recent began in April 1991. 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 West Union 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; all are health-based, and the most recent began in April 1991. For current results, consult the system's annual water quality report, EPA ECHO, or the IA state drinking water program.
Where can I find West Union Water Supply's water quality report?
As a community water system, West Union 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 Fayette County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Oelwein Municipal Water Works | Fayette | 5,920 | Community | Groundwater |
| Fayette Water Supply | Fayette | 1,256 | Community | Groundwater |
| Elgin Municipal Water Supply | Fayette | 685 | Community | Groundwater |
| Clermont Water Supply | Fayette | 586 | Community | Groundwater |
| North Fayette Valley Community School | Fayette | 552 | Non-transient non-community | Groundwater |
| Maynard Water Supply | Fayette | 476 | 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, “West Union Water Supply, PWSID IA3383014, Iowa”, https://aquacensus.com/water-systems/iowa/west-union-water-supply-ia3383014 (data as of October 1, 2026).