Public water system · WI4600456
ActiveWaldo Waterworks
At a glance
Waldo Waterworks (PWSID WI4600456) is an active community water system in Sheboygan County, Wisconsin. It reports serving 500 people through 185 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list one violation for this system; it is health-based, and the most recent began in July 2010.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
500
Service connections
185
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Waldo Waterworks compare with other water systems in Sheboygan County?
By EPA's size categories, Waldo Waterworks is a very small system (500 people or fewer). Sheboygan County has 215 active public water systems. Its population served is about 11% below the county average of 559 people per system, and accounts for 0.4% of the 120,200 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 Waldo 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 Waldo Waterworks?
EPA lists Waldo 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. 31 of the 215 active systems in Sheboygan County (14%) are also owned by a local government.
Does Waldo Waterworks have drinking water violations?
EPA's records list one violation for this system; it is health-based, and the most recent began in July 2010. By type: 1 contaminant level above the legal limit. The contaminant or rule involved is Total coliform bacteria (TCR). EPA lists 1 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 |
|---|---|---|---|---|
| 2010-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
The one violation in EPA's records.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.
Waldo Waterworks: frequently asked questions
Who runs Waldo Waterworks?
Waldo Waterworks (PWSID WI4600456) is a community water system owned by a local government. It is regulated by the WI state drinking water program.
How many people does Waldo Waterworks serve?
Waldo Waterworks reports serving 500 people through 185 service connections in Sheboygan County, Wisconsin.
Where does Waldo 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 Waldo Waterworks have any drinking water violations?
EPA's records list one violation for this system; it is health-based, and the most recent began in July 2010. 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 Waldo 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 one violation for this system; it is health-based, and the most recent began in July 2010. For current results, consult the system's annual water quality report, EPA ECHO, or the WI state drinking water program.
Where can I find Waldo Waterworks' water quality report?
As a community water system, Waldo 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 Sheboygan County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Sheboygan Water Utilities | Sheboygan | 49,931 | Community | Surface water |
| Plymouth Utilities | Sheboygan | 8,964 | Community | Groundwater |
| Sheboygan Falls Utilities | Sheboygan | 8,687 | Community | Purchased surface water |
| Sheboygan Tn Waterworks | Sheboygan | 4,596 | Community | Groundwater |
| Oostburg Waterworks | Sheboygan | 3,110 | Community | Groundwater |
| Kohler Waterworks | Sheboygan | 2,271 | Community | Purchased surface water |
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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, “Waldo Waterworks, PWSID WI4600456, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/waldo-waterworks-wi4600456 (data as of October 1, 2026).