Public water system · WI4690345
ActiveManawa Waterworks
At a glance
Manawa Waterworks (PWSID WI4690345) is an active community water system in Waupaca County, Wisconsin. It reports serving 1,300 people through 481 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 11 violations for this system; 2 are health-based, and the most recent began in August 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,300
Service connections
481
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Manawa Waterworks compare with other water systems in Waupaca County?
By EPA's size categories, Manawa Waterworks is a small system (501 to 3,300 people). Waupaca County has 207 active public water systems, and Manawa Waterworks is the 5th-largest of them by population served. Its population served is about 7.4 times the county average of 175 people per system, and accounts for 3.6% of the 36,146 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 Manawa 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 Manawa Waterworks?
EPA lists Manawa 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. 21 of the 207 active systems in Waupaca County (10%) are also owned by a local government.
Does Manawa Waterworks have drinking water violations?
EPA's records list 11 violations for this system; 2 are health-based, and the most recent began in August 2025. The violations listed here began between October 1991 and August 2025. By type: 5 monitoring and reporting, 3 public notice, recordkeeping or other, 2 required treatment not met and 1 monitoring. The contaminant or rule involved most often is Lead and Copper Rule (5 of them). EPA lists 10 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 |
|---|---|---|---|---|
| 2025-08-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2024-01-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2011-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2006-01-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2006-01-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2005-07-01 | Required treatment not metPublic Education · code 65 | Lead and Copper Rulecode 5000 | Yes | Resolved |
| 2005-01-01 | Monitoring and reportingWater Quality Parameter M/R · code 53 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1999-12-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1994-01-01 | Required treatment not metPublic Education · code 65 | Lead and Copper Rulecode 5000 | Yes | Resolved |
| 1994-01-01 | Monitoring and reportingInitial, Follow-up, or Routine Source Water M/R · code 56 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1991-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
All 11 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.
Manawa Waterworks: frequently asked questions
Who runs Manawa Waterworks?
Manawa Waterworks (PWSID WI4690345) is a community water system owned by a local government. It is regulated by the WI state drinking water program.
How many people does Manawa Waterworks serve?
Manawa Waterworks reports serving 1,300 people through 481 service connections in Waupaca County, Wisconsin.
Where does Manawa 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 Manawa Waterworks have any drinking water violations?
EPA's records list 11 violations for this system; 2 are health-based, and the most recent began in August 2025. 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 Manawa 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 11 violations for this system; 2 are health-based, and the most recent began in August 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the WI state drinking water program.
Where can I find Manawa Waterworks' water quality report?
As a community water system, Manawa 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 Waupaca County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| New London Waterworks | Waupaca | 7,187 | Community | Groundwater |
| Waupaca Waterworks | Waupaca | 6,062 | Community | Groundwater |
| Clintonville Utilities | Waupaca | 4,635 | Community | Groundwater |
| Weyauwega Waterworks | Waupaca | 1,820 | Community | Groundwater |
| Marion Waterworks | Waupaca | 1,293 | Community | Groundwater |
| Iola Waterworks | Waupaca | 1,249 | 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, “Manawa Waterworks, PWSID WI4690345, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/manawa-waterworks-wi4690345 (data as of October 1, 2026).