Public water system · IA7078026
ActiveWilton Water Supply
At a glance
Wilton Water Supply (PWSID IA7078026) is an active community water system in Muscatine County, Iowa. It reports serving 2,924 people through 1,300 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 August 2014.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
2,924
Service connections
1,300
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Wilton Water Supply compare with other water systems in Muscatine County?
By EPA's size categories, Wilton Water Supply is a small system (501 to 3,300 people). Muscatine County has 40 active public water systems, and Wilton Water Supply is the 3rd-largest of them by population served. Its population served is about 3 times the county average of 974 people per system, and accounts for 7.5% of the 38,948 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 Wilton Water Supply is about 56% 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 Wilton Water Supply?
EPA lists Wilton 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. 8 of the 40 active systems in Muscatine County (20%) are also owned by a local government.
Does Wilton 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 August 2014. The violations listed here began between January 1988 and August 2014. By type: 3 monitoring and reporting. The contaminants or rules involved are Total trihalomethanes (TTHM), Haloacetic acids (HAA5) and Nitrate. 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 |
|---|---|---|---|---|
| 2014-08-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2014-08-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 1988-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | 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.
Wilton Water Supply: frequently asked questions
Who runs Wilton Water Supply?
Wilton Water Supply (PWSID IA7078026) is a community water system owned by a local government. It is regulated by the IA state drinking water program.
How many people does Wilton Water Supply serve?
Wilton Water Supply reports serving 2,924 people through 1,300 service connections in Muscatine County, Iowa.
Where does Wilton 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 Wilton 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 August 2014. 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 Wilton 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 August 2014. For current results, consult the system's annual water quality report, EPA ECHO, or the IA state drinking water program.
Where can I find Wilton Water Supply's water quality report?
As a community water system, Wilton 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 Muscatine County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Muscatine Power & Water | Muscatine | 25,516 | Community | Groundwater |
| West Liberty Water Utility | Muscatine | 3,938 | Community | Groundwater |
| West Liberty Foods | Muscatine | 925 | Non-transient non-community | Groundwater |
| Ssab Iowa Inc. | Muscatine | 760 | Non-transient non-community | Groundwater |
| Caseys Store (Nichols) #2472 | Muscatine | 603 | Transient non-community | Groundwater |
| Bayer Crop Science Lp | Muscatine | 575 | Non-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, “Wilton Water Supply, PWSID IA7078026, Iowa”, https://aquacensus.com/water-systems/iowa/wilton-water-supply-ia7078026 (data as of October 1, 2026).