Public water system · IA3430091
ActiveRockford Water Supply
At a glance
Rockford Water Supply (PWSID IA3430091) is an active community water system in Floyd County, Iowa. It reports serving 762 people through 400 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; 1 is health-based, and the most recent began in September 1996.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
762
Service connections
400
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Rockford Water Supply compare with other water systems in Floyd County?
By EPA's size categories, Rockford Water Supply is a small system (501 to 3,300 people). Floyd County has 18 active public water systems, and Rockford Water Supply is the 4th-largest of them by population served. Its population served is about 11% above the county average of 685 people per system, and accounts for 6.2% 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 Rockford Water Supply 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 Rockford Water Supply?
EPA lists Rockford 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 Rockford Water Supply have drinking water violations?
EPA's records list 4 violations for this system; 1 is health-based, and the most recent began in September 1996. The violations listed here began between May 1993 and September 1996. By type: 3 monitoring and reporting and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (4 of them). EPA lists 4 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 |
|---|---|---|---|---|
| 1996-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1996-08-01 | Monitoring and reportingMonitoring, Repeat Minor (TCR) · code 26 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1996-05-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1993-05-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | 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.
Rockford Water Supply: frequently asked questions
Who runs Rockford Water Supply?
Rockford Water Supply (PWSID IA3430091) is a community water system owned by a local government. It is regulated by the IA state drinking water program.
How many people does Rockford Water Supply serve?
Rockford Water Supply reports serving 762 people through 400 service connections in Floyd County, Iowa.
Where does Rockford 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 Rockford Water Supply have any drinking water violations?
EPA's records list 4 violations for this system; 1 is health-based, and the most recent began in September 1996. 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 Rockford 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 4 violations for this system; 1 is health-based, and the most recent began in September 1996. For current results, consult the system's annual water quality report, EPA ECHO, or the IA state drinking water program.
Where can I find Rockford Water Supply's water quality report?
As a community water system, Rockford 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 |
|---|---|---|---|---|
| Charles City Water Supply | Floyd | 7,446 | Community | Groundwater |
| Nora Springs Water Supply | Floyd | 1,369 | Community | Groundwater |
| 218 Fuel Express | Floyd | 914 | Transient non-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, “Rockford Water Supply, PWSID IA3430091, Iowa”, https://aquacensus.com/water-systems/iowa/rockford-water-supply-ia3430091 (data as of October 1, 2026).