Public water system · WI4450117
ActiveDarboy Sanitary Dist 1
At a glance
Darboy Sanitary Dist 1 (PWSID WI4450117) is an active community water system in Outagamie County, Wisconsin. It reports serving 13,024 people through 4,823 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; 2 are health-based, and the most recent began in October 2024.
This page covers its drinking water system only; sewer and wastewater service are not part of EPA's drinking water records.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
13,024
Service connections
4,823
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Darboy Sanitary Dist 1 compare with other water systems in Outagamie County?
By EPA's size categories, Darboy Sanitary Dist 1 is a large system (10,001 to 100,000 people). Outagamie County has 107 active public water systems, and Darboy Sanitary Dist 1 is the 4th-largest of them by population served. Its population served is about 7.8 times the county average of 1,679 people per system, and accounts for 7.3% of the 179,613 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 Darboy Sanitary Dist 1 is about twice 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 Darboy Sanitary Dist 1?
EPA lists Darboy Sanitary Dist 1 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 107 active systems in Outagamie County (20%) are also owned by a local government.
Does Darboy Sanitary Dist 1 have drinking water violations?
EPA's records list 4 violations for this system; 2 are health-based, and the most recent began in October 2024. The violations listed here began between June 1986 and October 2024. By type: 2 contaminant level above the legal limit, 1 public notice, recordkeeping or other and 1 monitoring and reporting. The contaminant or rule involved most often is Combined Radium (-226 and -228) (2 of them). EPA lists 3 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 |
|---|---|---|---|---|
| 2024-10-17 | Public notice, recordkeeping or otherPublic Notification Violation without NPDWR Violation · code 76 | Public Noticecode 7500 | No | Resolved |
| 1995-07-01 | Monitoring and reportingWater Quality Parameter M/R · code 53 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1988-07-07 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Combined Radium (-226 and -228)code 4010 | Yes | Archived |
| 1986-06-06 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Combined Radium (-226 and -228)code 4010 | Yes | 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.
Darboy Sanitary Dist 1: frequently asked questions
Who runs Darboy Sanitary Dist 1?
Darboy Sanitary Dist 1 (PWSID WI4450117) is a community water system owned by a local government. It is regulated by the WI state drinking water program.
How many people does Darboy Sanitary Dist 1 serve?
Darboy Sanitary Dist 1 reports serving 13,024 people through 4,823 service connections in Outagamie County, Wisconsin.
Where does Darboy Sanitary Dist 1 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 Darboy Sanitary Dist 1 have any drinking water violations?
EPA's records list 4 violations for this system; 2 are 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 Darboy Sanitary Dist 1'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; 2 are 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 Darboy Sanitary Dist 1's water quality report?
As a community water system, Darboy Sanitary Dist 1 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 Outagamie County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Appleton Waterworks | Outagamie | 74,511 | Community | Surface water |
| Grand Chute Tn San Dist 1 | Outagamie | 21,583 | Community | Purchased surface water |
| Kaukauna Utilities | Outagamie | 17,493 | Community | Groundwater |
| Little Chute Waterworks | Outagamie | 12,168 | Community | Groundwater |
| Greenville Utilities Vil of | Outagamie | 11,340 | Community | Groundwater |
| Kimberly Waterworks | Outagamie | 7,608 | 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, “Darboy Sanitary Dist 1, PWSID WI4450117, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/darboy-sanitary-dist-1-wi4450117 (data as of October 1, 2026).