Public water system · IA2220002
ActiveEdgewood Water Supply
At a glance
Edgewood Water Supply (PWSID IA2220002) is an active community water system in Clayton County, Iowa. It reports serving 939 people through 490 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in January 2014.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
939
Service connections
490
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Edgewood Water Supply compare with other water systems in Clayton County?
By EPA's size categories, Edgewood Water Supply is a small system (501 to 3,300 people). Clayton County has 45 active public water systems, and Edgewood Water Supply is the 5th-largest of them by population served. Its population served is about 3.2 times the county average of 298 people per system, and accounts for 7% of the 13,403 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 Edgewood 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 Edgewood Water Supply?
EPA lists Edgewood 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. 14 of the 45 active systems in Clayton County (31%) are also owned by a local government.
Does Edgewood Water Supply have drinking water violations?
EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in January 2014. The violations listed here began between August 2009 and January 2014. By type: 1 monitoring and reporting and 1 contaminant level above the legal limit. The contaminants or rules involved are Combined Radium (-226 and -228) and Total coliform bacteria (TCR). EPA lists 2 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 |
|---|---|---|---|---|
| 2014-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Combined Radium (-226 and -228)code 4010 | No | Resolved |
| 2009-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
All 2 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.
Edgewood Water Supply: frequently asked questions
Who runs Edgewood Water Supply?
Edgewood Water Supply (PWSID IA2220002) is a community water system owned by a local government. It is regulated by the IA state drinking water program.
How many people does Edgewood Water Supply serve?
Edgewood Water Supply reports serving 939 people through 490 service connections in Clayton County, Iowa.
Where does Edgewood 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 Edgewood Water Supply have any drinking water violations?
EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in January 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 Edgewood 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 2 violations for this system; 1 is health-based, and the most recent began in January 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 Edgewood Water Supply's water quality report?
As a community water system, Edgewood 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 Clayton County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Guttenberg Water Utility | Clayton | 1,817 | Community | Groundwater |
| Monona Municipal Water Dept | Clayton | 1,471 | Community | Groundwater |
| Elkader Muni Water Dept | Clayton | 1,219 | Community | Groundwater |
| Strawberry Point Water Supply | Clayton | 1,155 | Community | Groundwater |
| Garnavillo Water Supply | Clayton | 763 | Community | Groundwater |
| Mcgregor Water Dept | Clayton | 747 | 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, “Edgewood Water Supply, PWSID IA2220002, Iowa”, https://aquacensus.com/water-systems/iowa/edgewood-water-supply-ia2220002 (data as of October 1, 2026).