Public water system · WI4710522
ActiveWinchester, the
At a glance
Winchester, the (PWSID WI4710522) is an active transient non-community water system in Winnebago County, Wisconsin. It reports serving 50 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in October 2009.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
50
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Winchester, the compare with other water systems in Winnebago County?
By EPA's size categories, Winchester, the is a very small system (500 people or fewer). Winnebago County has 145 active public water systems. Its population served is well below the county average of 1,016 people per system, and accounts for less than 0.1% of the 147,267 people reported by systems filed under the county. Across Wisconsin, the 11,056 active systems average 469 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Winchester, the is about 65% below that figure.
What does “transient non-community water system” mean?
A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. Wisconsin has 9,112 active transient non-community water systems, 82% 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 Winchester, the?
EPA lists Winchester, the as privately owned. 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. 123 of the 145 active systems in Winnebago County (85%) are also privately owned.
Does Winchester, the have drinking water violations?
EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in October 2009. The violations listed here began between October 2009 and October 2009. By type: 1 public notice, recordkeeping or other and 1 contaminant level above the legal limit. The contaminants or rules involved are Public Notice and Total coliform bacteria (TCR). EPA lists 2 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 |
|---|---|---|---|---|
| 2009-10-22 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2009-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
All 2 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.
Winchester, the: frequently asked questions
Who runs Winchester, the?
Winchester, the (PWSID WI4710522) is a transient non-community water system privately owned. It is regulated by the WI state drinking water program.
How many people does Winchester, the serve?
Winchester, the reports serving 50 people through 1 service connection in Winnebago County, Wisconsin.
Where does Winchester, the 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 Winchester, the have any drinking water violations?
EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in October 2009. 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 Winchester, the'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 2 violations for this system; 1 is health-based, and the most recent began in October 2009. For current results, consult EPA ECHO, or the WI state drinking water program.
Where can I find Winchester, the's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Winchester, the is a transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Winnebago County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Oshkosh Waterworks | Winnebago | 63,000 | Community | Surface water |
| Neenah Waterworks | Winnebago | 27,506 | Community | Surface water |
| Menasha Elec & Water Util | Winnebago | 15,144 | Community | Surface water |
| Fox Crossing Utilities West | Winnebago | 14,000 | Community | Groundwater |
| Fox Crossing Utilities East | Winnebago | 10,927 | Community | Purchased surface water |
| Algoma Tn Sanitary Dist 1 | Winnebago | 3,935 | 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, “Winchester, the, PWSID WI4710522, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/winchester-the-wi4710522 (data as of October 1, 2026).