Public water system · IA3405012
ActiveCharles City Water Supply
At a glance
Charles City Water Supply (PWSID IA3405012) is an active community water system in Floyd County, Iowa. It reports serving 7,446 people through 3,450 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; none is health-based, and the most recent began in August 2022.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
7,446
Service connections
3,450
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Charles City Water Supply compare with other water systems in Floyd County?
By EPA's size categories, Charles City Water Supply is a medium system (3,301 to 10,000 people). Floyd County has 18 active public water systems, and Charles City Water Supply is the largest of them by population served. Its population served is about 11 times the county average of 685 people per system, and accounts for 60% of the 12,330 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 Charles City Water Supply is about 11% 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. 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 Charles City Water Supply?
EPA lists Charles 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. 9 of the 18 active systems in Floyd County (50%) are also owned by a local government.
Does Charles City Water Supply have drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in August 2022. The violations listed here began between July 2005 and August 2022. By type: 3 monitoring and reporting. The contaminant or rule involved most often is Haloacetic acids (HAA5) (2 of them). EPA lists 3 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 |
|---|---|---|---|---|
| 2022-08-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2022-08-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2005-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
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.
Charles City Water Supply: frequently asked questions
Who runs Charles City Water Supply?
Charles City Water Supply (PWSID IA3405012) is a community water system owned by a local government. It is regulated by the IA state drinking water program.
How many people does Charles City Water Supply serve?
Charles City Water Supply reports serving 7,446 people through 3,450 service connections in Floyd County, Iowa.
Where does Charles 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 Charles City Water Supply have any drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in August 2022. 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 Charles 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; none is health-based, and the most recent began in August 2022. For current results, consult the system's annual water quality report, EPA ECHO, or the IA state drinking water program.
Where can I find Charles City Water Supply's water quality report?
As a community water system, Charles 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 Floyd County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Nora Springs Water Supply | Floyd | 1,369 | Community | Groundwater |
| 218 Fuel Express | Floyd | 914 | Transient non-community | Groundwater |
| Rockford Water Supply | Floyd | 762 | Community | Groundwater |
| Rudd Waterworks | Floyd | 358 | Community | Groundwater |
| Cedar Ridge Golf Course | Floyd | 316 | Transient non-community | Groundwater |
| Floyd Muni Water Supply | Floyd | 313 | 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, “Charles City Water Supply, PWSID IA3405012, Iowa”, https://aquacensus.com/water-systems/iowa/charles-city-water-supply-ia3405012 (data as of October 1, 2026).