Public water system · IA0625078
ActiveGarrison Water Supply
At a glance
Garrison Water Supply (PWSID IA0625078) is an active community water system in Benton County, Iowa. It reports serving 344 people through 171 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's Safe Drinking Water Act records list no violations for this system.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
344
Service connections
171
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Garrison Water Supply compare with other water systems in Benton County?
By EPA's size categories, Garrison Water Supply is a very small system (500 people or fewer). Benton County has 23 active public water systems. Its population served is about 58% below the county average of 826 people per system, and accounts for 1.8% of the 19,007 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 Garrison 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 Garrison Water Supply?
EPA lists Garrison 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. 14 of the 23 active systems in Benton County (61%) are also owned by a local government.
Does Garrison Water Supply have drinking water violations?
No SDWA violations on record.
EPA's SDWA violation and enforcement data (via EPA ECHO, updated quarterly) lists no violations for Garrison Water Supply. For the latest compliance status, check EPA ECHO for current compliance history.
Garrison Water Supply: frequently asked questions
Who runs Garrison Water Supply?
Garrison Water Supply (PWSID IA0625078) is a community water system owned by a local government. It is regulated by the IA state drinking water program.
How many people does Garrison Water Supply serve?
Garrison Water Supply reports serving 344 people through 171 service connections in Benton County, Iowa.
Where does Garrison 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 Garrison Water Supply have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Garrison 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 Safe Drinking Water Act records list no violations for this system. For current results, consult the system's annual water quality report, EPA ECHO, or the IA state drinking water program.
Where can I find Garrison Water Supply's water quality report?
As a community water system, Garrison 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 Benton County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Vinton Municipal Water Dept | Benton | 4,938 | Community | Groundwater |
| Belle Plaine Water Dept | Benton | 2,380 | Community | Groundwater |
| Atkins Municipal Water Works | Benton | 2,056 | Community | Groundwater |
| Poweshiek Water Association (Cr) | Benton | 2,000 | Community | Purchased groundwater under influence |
| Urbana Water Supply | Benton | 1,554 | Community | Groundwater |
| Shellsburg Water Supply | Benton | 961 | 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, “Garrison Water Supply, PWSID IA0625078, Iowa”, https://aquacensus.com/water-systems/iowa/garrison-water-supply-ia0625078 (data as of October 1, 2026).