Public water system · WI4050464
ActiveWrightstown Waterworks
At a glance
Wrightstown Waterworks (PWSID WI4050464) is an active community water system in Brown County, Wisconsin. It reports serving 3,815 people through 1,412 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's records list 7 violations for this system; 4 are health-based, and the most recent began in October 2023.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
3,815
Service connections
1,412
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Wrightstown Waterworks compare with other water systems in Brown County?
By EPA's size categories, Wrightstown Waterworks is a medium system (3,301 to 10,000 people). Brown County has 148 active public water systems. Its population served is about 129% above the county average of 1,666 people per system, and accounts for 1.5% of the 246,537 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 Wrightstown Waterworks is about 43% 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. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 43 Wisconsin systems (0.4%) list purchased surface water as their primary source.
Who owns and regulates Wrightstown Waterworks?
EPA lists Wrightstown 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. 41 of the 148 active systems in Brown County (28%) are also owned by a local government.
Does Wrightstown Waterworks have drinking water violations?
EPA's records list 7 violations for this system; 4 are health-based, and the most recent began in October 2023. The violations listed here began between October 1978 and October 2023. By type: 2 required treatment not met, 2 monitoring and reporting, 2 contaminant level above the legal limit and 1 monitoring. The contaminant or rule involved most often is Lead and Copper Rule (3 of them). EPA lists 5 as resolved and 2 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 |
|---|---|---|---|---|
| 2023-10-01 | Required treatment not metPublic Education · code 65 | Lead and Copper Rulecode 5000 | Yes | Resolved |
| 2019-01-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2019-01-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 1998-06-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1997-01-01 | Required treatment not metOCCT/SOWT Study/Recommendation · code 57 | Lead and Copper Rulecode 5000 | Yes | Resolved |
| 1983-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Fluoridecode 1025 | Yes | Archived |
| 1978-10-31 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Fluoridecode 1025 | Yes | Archived |
All 7 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.
Wrightstown Waterworks: frequently asked questions
Who runs Wrightstown Waterworks?
Wrightstown Waterworks (PWSID WI4050464) is a community water system owned by a local government. It is regulated by the WI state drinking water program.
How many people does Wrightstown Waterworks serve?
Wrightstown Waterworks reports serving 3,815 people through 1,412 service connections in Brown County, Wisconsin.
Where does Wrightstown Waterworks get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Wrightstown Waterworks have any drinking water violations?
EPA's records list 7 violations for this system; 4 are health-based, and the most recent began in October 2023. 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 Wrightstown 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 7 violations for this system; 4 are health-based, and the most recent began in October 2023. For current results, consult the system's annual water quality report, EPA ECHO, or the WI state drinking water program.
Where can I find Wrightstown Waterworks' water quality report?
As a community water system, Wrightstown 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 Brown County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Green Bay Waterworks | Brown | 107,369 | Community | Surface water |
| De Pere Waterworks Sa 1 | Brown | 25,660 | Community | Purchased surface water |
| Howard Waterworks | Brown | 21,133 | Community | Purchased surface water |
| Ashwaubenon Waterworks | Brown | 17,730 | Community | Purchased surface water |
| Bellevue Waterworks | Brown | 16,715 | Community | Purchased surface water |
| Allouez Waterworks | Brown | 13,923 | 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, “Wrightstown Waterworks, PWSID WI4050464, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/wrightstown-waterworks-wi4050464 (data as of October 1, 2026).