Public water system · IA0737062
ActiveHudson Water Supply
At a glance
Hudson Water Supply (PWSID IA0737062) is an active community water system in Black Hawk County, Iowa. It reports serving 2,546 people through 1,239 service connections. Its primary water source is purchased groundwater, and EPA lists it as owned by a local government. EPA's records list 4 violations for this system; none is health-based, and the most recent began in December 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
2,546
Service connections
1,239
Primary source
GWP
Purchased groundwater
System type
CWS
Community water system
System record
How does Hudson Water Supply compare with other water systems in Black Hawk County?
By EPA's size categories, Hudson Water Supply is a small system (501 to 3,300 people). Black Hawk County has 18 active public water systems, and Hudson Water Supply is the 4th-largest of them by population served. Its population served is about 63% below the county average of 6,856 people per system, and accounts for 2.1% of the 123,407 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 Hudson Water Supply is about 62% 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. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own. 156 Iowa systems (8.5%) list purchased groundwater as their primary source.
Who owns and regulates Hudson Water Supply?
EPA lists Hudson 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. 10 of the 18 active systems in Black Hawk County (56%) are also owned by a local government.
Does Hudson Water Supply have drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in December 2025. The violations listed here began between September 1993 and December 2025. By type: 3 monitoring and reporting and 1 monitoring. The contaminants or rules involved are Revised Total Coliform Rule, Ethylbenzene, Xylenes, Total and Total coliform bacteria (TCR). 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 |
|---|---|---|---|---|
| 2025-12-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2007-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Ethylbenzenecode 2992 | No | Resolved |
| 2007-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Xylenes, Totalcode 2955 | No | Resolved |
| 1993-09-01 | 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.
Hudson Water Supply: frequently asked questions
Who runs Hudson Water Supply?
Hudson Water Supply (PWSID IA0737062) is a community water system owned by a local government. It is regulated by the IA state drinking water program.
How many people does Hudson Water Supply serve?
Hudson Water Supply reports serving 2,546 people through 1,239 service connections in Black Hawk County, Iowa.
Where does Hudson Water Supply get its water?
EPA SDWIS lists this system's primary water source as purchased groundwater. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own.
Does Hudson Water Supply have any drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in December 2025. 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 Hudson 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; none is health-based, and the most recent began in December 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the IA state drinking water program.
Where can I find Hudson Water Supply's water quality report?
As a community water system, Hudson 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 Black Hawk County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Waterloo Water Works | Black Hawk | 69,504 | Community | Groundwater |
| Cedar Falls Municipal Water Utilities | Black Hawk | 40,713 | Community | Groundwater |
| Evansdale Water Works | Black Hawk | 4,561 | Community | Groundwater |
| La Porte City Utilities | Black Hawk | 2,284 | Community | Groundwater |
| Elk Run Heights Water Supply | Black Hawk | 1,069 | Community | Purchased groundwater |
| Dunkerton Muni Water Supply | Black Hawk | 842 | 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, “Hudson Water Supply, PWSID IA0737062, Iowa”, https://aquacensus.com/water-systems/iowa/hudson-water-supply-ia0737062 (data as of October 1, 2026).