Public water system · WI4200476
ActiveRipon Water Utility
At a glance
Ripon Water Utility (PWSID WI4200476) is an active community water system in Fond du Lac County, Wisconsin. It reports serving 7,716 people through 3,075 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 4 violations for this system; 1 is health-based, and the most recent began in October 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
7,716
Service connections
3,075
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Ripon Water Utility compare with other water systems in Fond du Lac County?
By EPA's size categories, Ripon Water Utility is a medium system (3,301 to 10,000 people). Fond du Lac County has 207 active public water systems, and Ripon Water Utility is the 2nd-largest of them by population served. Its population served is about 18 times the county average of 421 people per system, and accounts for 8.9% of the 87,145 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 Ripon Water Utility is about 15% above 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 Ripon Water Utility?
EPA lists Ripon Water Utility 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. 26 of the 207 active systems in Fond du Lac County (13%) are also owned by a local government.
Does Ripon Water Utility have drinking water violations?
EPA's records list 4 violations for this system; 1 is health-based, and the most recent began in October 2024. The violations listed here began between January 1993 and October 2024. By type: 1 public notice, recordkeeping or other, 1 required treatment not met, 1 monitoring and 1 monitoring and reporting. The contaminants or rules involved are Public Notice, Lead and Copper Rule Revisions, Revised Total Coliform Rule and Lead and Copper Rule. EPA lists 3 as resolved and 1 as unaddressed. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2024-10-17 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2024-10-17 | Required treatment not metLSL Inventory · code 2E | Lead and Copper Rule Revisionscode 5200 | Yes | Resolved |
| 2019-01-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 1993-01-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
All 4 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.
Ripon Water Utility: frequently asked questions
Who runs Ripon Water Utility?
Ripon Water Utility (PWSID WI4200476) is a community water system owned by a local government. It is regulated by the WI state drinking water program.
How many people does Ripon Water Utility serve?
Ripon Water Utility reports serving 7,716 people through 3,075 service connections in Fond du Lac County, Wisconsin.
Where does Ripon Water Utility 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 Ripon Water Utility have any drinking water violations?
EPA's records list 4 violations for this system; 1 is health-based, and the most recent began in October 2024. 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 Ripon Water Utility's 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 4 violations for this system; 1 is health-based, and the most recent began in October 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the WI state drinking water program.
Where can I find Ripon Water Utility's water quality report?
As a community water system, Ripon Water Utility 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 Fond du Lac County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Fond Du Lac Waterworks | Fond du Lac | 44,678 | Community | Groundwater |
| North Fond Du Lac Waterworks | Fond du Lac | 5,414 | Community | Groundwater |
| Campbellsport Waterworks | Fond du Lac | 1,825 | Community | Groundwater |
| Oakfield Waterworks | Fond du Lac | 1,058 | Community | Groundwater |
| Ashwood Grove Edgewater | Fond du Lac | 1,046 | Community | Groundwater |
| Fond Du Lac Tn Water Utility | Fond du Lac | 980 | Community | Purchased 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, “Ripon Water Utility, PWSID WI4200476, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/ripon-water-utility-wi4200476 (data as of October 1, 2026).