Public water system · WI4600436

Active

Cascade Waterworks

At a glance

Cascade Waterworks (PWSID WI4600436) is an active community water system in Sheboygan County, Wisconsin. It reports serving 719 people through 266 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in January 2026.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

719

Service connections

266

Primary source

Groundwater

System type

CWS

Community water system

System record

PWSIDWI4600436

System typeCommunity water system

Activity statusActive

Population served719

Service connections266

Primary water sourceGroundwater

Owner typeLocal government

Primacy agencyWI state drinking water program

City servedCascade

StateWisconsin

ZIP—

CountySheboygan County

How does Cascade Waterworks compare with other water systems in Sheboygan County?

By EPA's size categories, Cascade Waterworks is a small system (501 to 3,300 people). Sheboygan County has 215 active public water systems. Its population served is about 29% above the county average of 559 people per system, and accounts for 0.6% 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 Cascade 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 Cascade Waterworks?

EPA lists Cascade 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 Cascade Waterworks have drinking water violations?

Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in January 2026. The violations listed here began between July 2005 and January 2026. By type: 8 monitoring and reporting, 3 public notice, recordkeeping or other and 1 required treatment not met. The contaminant or rule involved most often is Radium-228 (2 of them). EPA lists 9 as resolved and 3 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
2026-01-01	Monitoring and reportingMonitoring, Regular · code 03	Radium-226code 4020	No	Archived
2026-01-01	Monitoring and reportingMonitoring, Regular · code 03	Radium-228code 4030	No	Archived
2026-01-01	Monitoring and reportingMonitoring, Regular · code 03	Combined Radium (-226 and -228)code 4010	No	Archived
2010-05-01	Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24	Total coliform bacteria (TCR)code 3100	No	Resolved
2010-04-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2010-01-01	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2009-04-01	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2009-01-01	Monitoring and reportingMonitoring, Regular · code 03	Gross alpha (excluding radon and uranium)code 4000	No	Resolved
2009-01-01	Monitoring and reportingMonitoring, Regular · code 03	Combined Radium (-226 and -228)code 4010	No	Resolved
2009-01-01	Monitoring and reportingMonitoring, Regular · code 03	Radium-228code 4030	No	Resolved
2009-01-01	Required treatment not metPublic Education · code 65	Lead and Copper Rulecode 5000	Yes	Resolved
2005-07-01	Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71	Consumer Confidence Rulecode 7000	No	Resolved

The 12 most recent 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.

Cascade Waterworks: frequently asked questions

Who runs Cascade Waterworks?

Cascade Waterworks (PWSID WI4600436) is a community water system owned by a local government. It is regulated by the WI state drinking water program.

How many people does Cascade Waterworks serve?

Cascade Waterworks reports serving 719 people through 266 service connections in Sheboygan County, Wisconsin.

Where does Cascade 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 Cascade Waterworks have any drinking water violations?

Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in January 2026. 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 Cascade 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. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in January 2026. For current results, consult the system's annual water quality report, EPA ECHO, or the WI state drinking water program.

Where can I find Cascade Waterworks' water quality report?

As a community water system, Cascade 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, “Cascade Waterworks, PWSID WI4600436, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/cascade-waterworks-wi4600436 (data as of October 1, 2026).