Public water system · IA9525047
ActiveForest City Water Supply
At a glance
Forest City Water Supply (PWSID IA9525047) is an active community water system in Winnebago County, Iowa. It reports serving 4,285 people through 1,590 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 3 violations for this system; 2 are health-based, and the most recent began in July 1992.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
4,285
Service connections
1,590
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Forest City Water Supply compare with other water systems in Winnebago County?
By EPA's size categories, Forest City Water Supply is a medium system (3,301 to 10,000 people). Winnebago County has 19 active public water systems, and Forest City Water Supply is the largest of them by population served. Its population served is about 8.6 times the county average of 496 people per system, and accounts for 45% of the 9,425 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 Forest City Water Supply is about 36% 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 Forest City Water Supply?
EPA lists Forest City Water Supply as owned by a local government. 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. 8 of the 19 active systems in Winnebago County (42%) are also owned by a local government.
Does Forest City Water Supply have drinking water violations?
EPA's records list 3 violations for this system; 2 are health-based, and the most recent began in July 1992. The violations listed here began between October 1985 and July 1992. By type: 2 contaminant level above the legal limit and 1 monitoring and reporting. The contaminant or rule involved most often is Combined Radium (-226 and -228) (2 of them). EPA lists 2 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 |
|---|---|---|---|---|
| 1992-07-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1986-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01 | Combined Radium (-226 and -228)code 4010 | Yes | Resolved |
| 1985-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Combined Radium (-226 and -228)code 4010 | Yes | Archived |
All 3 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.
Forest City Water Supply: frequently asked questions
Who runs Forest City Water Supply?
Forest City Water Supply (PWSID IA9525047) is a community water system owned by a local government. It is regulated by the IA state drinking water program.
How many people does Forest City Water Supply serve?
Forest City Water Supply reports serving 4,285 people through 1,590 service connections in Winnebago County, Iowa.
Where does Forest City Water Supply 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 Forest City Water Supply have any drinking water violations?
EPA's records list 3 violations for this system; 2 are health-based, and the most recent began in July 1992. 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 Forest City Water Supply'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 3 violations for this system; 2 are health-based, and the most recent began in July 1992. For current results, consult the system's annual water quality report, EPA ECHO, or the IA state drinking water program.
Where can I find Forest City Water Supply's water quality report?
As a community water system, Forest City Water Supply 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 Winnebago County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Lake Mills Municipal Water Dept-South | Winnebago | 2,158 | Community | Groundwater |
| Buffalo Center Muni Water Dept | Winnebago | 857 | Community | Groundwater |
| Thompson Water Works | Winnebago | 499 | Community | Groundwater |
| Three Fingers Campground | Winnebago | 252 | Transient non-community | Groundwater |
| Leland Water Supply | Winnebago | 249 | Community | Groundwater |
| Rake Water Supply | Winnebago | 186 | 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, “Forest City Water Supply, PWSID IA9525047, Iowa”, https://aquacensus.com/water-systems/iowa/forest-city-water-supply-ia9525047 (data as of October 1, 2026).