Public water system · WI1140145
ActiveFox Lake Waterworks
At a glance
Fox Lake Waterworks (PWSID WI1140145) is an active community water system in Dodge County, Wisconsin. It reports serving 1,610 people through 596 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 8 violations for this system; 1 is health-based, and the most recent began in June 2011.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,610
Service connections
596
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Fox Lake Waterworks compare with other water systems in Dodge County?
By EPA's size categories, Fox Lake Waterworks is a small system (501 to 3,300 people). Dodge County has 180 active public water systems. Its population served is about 3.9 times the county average of 408 people per system, and accounts for 2.2% 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 Fox Lake 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 Fox Lake Waterworks?
EPA lists Fox Lake 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 Fox Lake Waterworks have drinking water violations?
EPA's records list 8 violations for this system; 1 is health-based, and the most recent began in June 2011. The violations listed here began between January 1993 and June 2011. By type: 5 monitoring and reporting, 2 public notice, recordkeeping or other and 1 required treatment not met. The contaminant or rule involved most often is Total coliform bacteria (TCR) (2 of them). EPA lists 7 as resolved and 1 as archived. 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. 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2011-06-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2011-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2009-02-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2009-01-01 | Required treatment not metPublic Education · code 65 | Lead and Copper Rulecode 5000 | Yes | Resolved |
| 2009-01-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2008-01-01 | Monitoring and reportingWater Quality Parameter M/R · code 53 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1996-09-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1993-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Archived |
All 8 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.
Fox Lake Waterworks: frequently asked questions
Who runs Fox Lake Waterworks?
Fox Lake Waterworks (PWSID WI1140145) is a community water system owned by a local government. It is regulated by the WI state drinking water program.
How many people does Fox Lake Waterworks serve?
Fox Lake Waterworks reports serving 1,610 people through 596 service connections in Dodge County, Wisconsin.
Where does Fox Lake 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 Fox Lake Waterworks have any drinking water violations?
EPA's records list 8 violations for this system; 1 is health-based, and the most recent began in June 2011. 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 Fox Lake 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 8 violations for this system; 1 is health-based, and the most recent began in June 2011. For current results, consult the system's annual water quality report, EPA ECHO, or the WI state drinking water program.
Where can I find Fox Lake Waterworks' water quality report?
As a community water system, Fox Lake 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, “Fox Lake Waterworks, PWSID WI1140145, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/fox-lake-waterworks-wi1140145 (data as of October 1, 2026).