Public water system · IA5285302
ActiveWinchester Heights Subdivision
At a glance
Winchester Heights Subdivision (PWSID IA5285302) is an active community water system in Johnson County, Iowa. It reports serving 67 people through 23 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 2 violations for this system; none is health-based, and the most recent began in September 2012.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
67
Service connections
23
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Winchester Heights Subdivision compare with other water systems in Johnson County?
By EPA's size categories, Winchester Heights Subdivision is a very small system (500 people or fewer). Johnson County has 125 active public water systems. Its population served is well below the county average of 1,384 people per system, and accounts for less than 0.1% of the 172,955 people reported by systems filed under the county. Across Iowa, the 1,828 active systems average 1,718 people each. Nationally, the average active community water system reports serving 6,703 people, so Winchester Heights Subdivision 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. Iowa has 1,084 active community water systems, 59% of the state's 1,828 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 1,502 Iowa systems (82%) list groundwater as their primary source.
Who owns and regulates Winchester Heights Subdivision?
EPA lists Winchester Heights Subdivision as privately owned. The IA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 102 of the 125 active systems in Johnson County (82%) are also privately owned.
Does Winchester Heights Subdivision have drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in September 2012. The violations listed here began between July 2001 and September 2012. By type: 2 monitoring and reporting. The contaminants or rules involved are Total coliform bacteria (TCR) and Combined Radium (-226 and -228). 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 |
|---|---|---|---|---|
| 2012-09-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2001-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Combined Radium (-226 and -228)code 4010 | No | 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 Heights Subdivision: frequently asked questions
Who runs Winchester Heights Subdivision?
Winchester Heights Subdivision (PWSID IA5285302) is a community water system privately owned. It is regulated by the IA state drinking water program.
How many people does Winchester Heights Subdivision serve?
Winchester Heights Subdivision reports serving 67 people through 23 service connections in Johnson County, Iowa.
Where does Winchester Heights Subdivision 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 Heights Subdivision have any drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in September 2012. 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 Heights Subdivision'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; none is health-based, and the most recent began in September 2012. For current results, consult the system's annual water quality report, EPA ECHO, or the IA state drinking water program.
Where can I find Winchester Heights Subdivision's water quality report?
As a community water system, Winchester Heights Subdivision 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 Johnson County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Iowa City Water Department | Johnson | 68,753 | Community | Surface water |
| University Water System | Johnson | 26,684 | Community | Surface water |
| North Liberty Water Supply | Johnson | 23,276 | Community | Groundwater |
| Coralville Muni Water System | Johnson | 22,318 | Community | Groundwater |
| Tiffin Water Supply | Johnson | 7,577 | Community | Groundwater |
| Solon Water Dept | Johnson | 3,018 | 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 Heights Subdivision, PWSID IA5285302, Iowa”, https://aquacensus.com/water-systems/iowa/winchester-heights-subdivision-ia5285302 (data as of October 1, 2026).