Public water system · WI1140854
ActiveSunnyside Estates
At a glance
Sunnyside Estates (PWSID WI1140854) is an active community water system in Dodge County, Wisconsin. It reports serving 135 people through 88 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in October 2013.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
135
Service connections
88
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Sunnyside Estates compare with other water systems in Dodge County?
By EPA's size categories, Sunnyside Estates is a very small system (500 people or fewer). Dodge County has 180 active public water systems. Its population served is well below the county average of 408 people per system, and accounts for 0.2% 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 Sunnyside Estates 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 Sunnyside Estates?
EPA lists Sunnyside Estates as privately owned. 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. 134 of the 180 active systems in Dodge County (74%) are also privately owned.
Does Sunnyside Estates have drinking water violations?
EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in October 2013. The violations listed here began between September 2011 and October 2013. By type: 1 public notice, recordkeeping or other and 1 contaminant level above the legal limit. The contaminants or rules involved are Consumer Confidence 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 |
|---|---|---|---|---|
| 2013-10-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2011-09-01 | 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.
Sunnyside Estates: frequently asked questions
Who runs Sunnyside Estates?
Sunnyside Estates (PWSID WI1140854) is a community water system privately owned. It is regulated by the WI state drinking water program.
How many people does Sunnyside Estates serve?
Sunnyside Estates reports serving 135 people through 88 service connections in Dodge County, Wisconsin.
Where does Sunnyside Estates 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 Sunnyside Estates have any drinking water violations?
EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in October 2013. 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 Sunnyside Estates' 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 October 2013. For current results, consult the system's annual water quality report, EPA ECHO, or the WI state drinking water program.
Where can I find Sunnyside Estates' water quality report?
As a community water system, Sunnyside Estates 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, “Sunnyside Estates, PWSID WI1140854, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/sunnyside-estates-wi1140854 (data as of October 1, 2026).