Public water system · WI1140150
ActiveIron Ridge Waterworks
At a glance
Iron Ridge Waterworks (PWSID WI1140150) is an active community water system in Dodge County, Wisconsin. It reports serving 937 people through 347 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 2012.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
937
Service connections
347
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Iron Ridge Waterworks compare with other water systems in Dodge County?
By EPA's size categories, Iron Ridge Waterworks is a small system (501 to 3,300 people). Dodge County has 180 active public water systems. Its population served is about 130% above the county average of 408 people per system, and accounts for 1.3% of the 73,453 people reported by systems filed under the county. Across Wisconsin, the 11,056 active systems average 469 people each. Nationally, the average active community water system reports serving 6,703 people, so Iron Ridge Waterworks 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. Wisconsin has 1,053 active community water systems, 9.5% of the state's 11,056 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 10,978 Wisconsin systems (99%) list groundwater as their primary source.
Who owns and regulates Iron Ridge Waterworks?
EPA lists Iron Ridge Waterworks as owned by a local government. The WI state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 38 of the 180 active systems in Dodge County (21%) are also owned by a local government.
Does Iron Ridge Waterworks have drinking water violations?
EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in January 2012. The violations listed here began between December 2004 and January 2012. By type: 1 monitoring and reporting and 1 contaminant level above the legal limit. The contaminants or rules involved are Lead and Copper Rule 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 |
|---|---|---|---|---|
| 2012-01-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2004-12-01 | 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.
Iron Ridge Waterworks: frequently asked questions
Who runs Iron Ridge Waterworks?
Iron Ridge Waterworks (PWSID WI1140150) is a community water system owned by a local government. It is regulated by the WI state drinking water program.
How many people does Iron Ridge Waterworks serve?
Iron Ridge Waterworks reports serving 937 people through 347 service connections in Dodge County, Wisconsin.
Where does Iron Ridge Waterworks 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 Iron Ridge Waterworks 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 2012. 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 Iron Ridge Waterworks' 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 2012. For current results, consult the system's annual water quality report, EPA ECHO, or the WI state drinking water program.
Where can I find Iron Ridge Waterworks' water quality report?
As a community water system, Iron Ridge Waterworks 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 Dodge County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Beaver Dam Water Utility | Dodge | 16,200 | Community | Groundwater |
| Waupun Utilities | Dodge | 8,056 | Community | Groundwater |
| Mayville Waterworks | Dodge | 5,112 | Community | Groundwater |
| Waupun Correctional Inst | Dodge | 3,706 | Community | Groundwater |
| Horicon Waterworks | Dodge | 3,682 | Community | Groundwater |
| Lomira Waterworks | Dodge | 2,701 | 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, “Iron Ridge Waterworks, PWSID WI1140150, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/iron-ridge-waterworks-wi1140150 (data as of October 1, 2026).