Public water system · WI4690394
ActiveIola Waterworks
At a glance
Iola Waterworks (PWSID WI4690394) is an active community water system in Waupaca County, Wisconsin. It reports serving 1,249 people through 462 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 6 violations for this system; 2 are health-based, and the most recent began in October 2011.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,249
Service connections
462
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Iola Waterworks compare with other water systems in Waupaca County?
By EPA's size categories, Iola Waterworks is a small system (501 to 3,300 people). Waupaca County has 207 active public water systems. Its population served is about 7.2 times the county average of 175 people per system, and accounts for 3.5% 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 Iola 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 Iola Waterworks?
EPA lists Iola 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 Iola Waterworks have drinking water violations?
EPA's records list 6 violations for this system; 2 are health-based, and the most recent began in October 2011. The violations listed here began between July 1993 and October 2011. By type: 4 monitoring and reporting and 2 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (3 of them). EPA lists 6 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 |
|---|---|---|---|---|
| 2011-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2011-10-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2001-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1999-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1993-07-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1993-07-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
All 6 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.
Iola Waterworks: frequently asked questions
Who runs Iola Waterworks?
Iola Waterworks (PWSID WI4690394) is a community water system owned by a local government. It is regulated by the WI state drinking water program.
How many people does Iola Waterworks serve?
Iola Waterworks reports serving 1,249 people through 462 service connections in Waupaca County, Wisconsin.
Where does Iola 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 Iola Waterworks have any drinking water violations?
EPA's records list 6 violations for this system; 2 are health-based, and the most recent began in October 2011. 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 Iola 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 6 violations for this system; 2 are health-based, and the most recent began in October 2011. For current results, consult the system's annual water quality report, EPA ECHO, or the WI state drinking water program.
Where can I find Iola Waterworks' water quality report?
As a community water system, Iola 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 |
| Manawa Waterworks | Waupaca | 1,300 | Community | Groundwater |
| Marion Waterworks | Waupaca | 1,293 | 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, “Iola Waterworks, PWSID WI4690394, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/iola-waterworks-wi4690394 (data as of October 1, 2026).