Public water system · IA3914081
ActiveCasey Water Supply
At a glance
Casey Water Supply (PWSID IA3914081) is an active community water system in Guthrie County, Iowa. It reports serving 387 people through 426 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 2 violations for this system; none is health-based, and the most recent began in April 1993.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
387
Service connections
426
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Casey Water Supply compare with other water systems in Guthrie County?
By EPA's size categories, Casey Water Supply is a very small system (500 people or fewer). Guthrie County has 10 active public water systems, and Casey Water Supply is the 6th-largest of them by population served. Its population served is about half of the county average of 775 people per system, and accounts for 5% of the 7,748 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 Casey 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 Casey Water Supply?
EPA lists Casey 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. 6 of the 10 active systems in Guthrie County (60%) are also owned by a local government.
Does Casey Water Supply have drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in April 1993. The violations listed here began between February 1993 and April 1993. By type: 2 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (2 of them). EPA lists 2 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 |
|---|---|---|---|---|
| 1993-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1993-02-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 2 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.
Casey Water Supply: frequently asked questions
Who runs Casey Water Supply?
Casey Water Supply (PWSID IA3914081) is a community water system owned by a local government. It is regulated by the IA state drinking water program.
How many people does Casey Water Supply serve?
Casey Water Supply reports serving 387 people through 426 service connections in Guthrie County, Iowa.
Where does Casey 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 Casey Water Supply have any drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in April 1993. 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 Casey 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 2 violations for this system; none is health-based, and the most recent began in April 1993. For current results, consult the system's annual water quality report, EPA ECHO, or the IA state drinking water program.
Where can I find Casey Water Supply's water quality report?
As a community water system, Casey 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 Guthrie County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Lake Panorama Water Company | Guthrie | 2,900 | Community | Groundwater |
| Guthrie Center Muni Water Work | Guthrie | 1,593 | Community | Groundwater |
| Panora Water Works | Guthrie | 1,142 | Community | Surface water |
| Springbrook State Park-Main System | Guthrie | 450 | Transient non-community | Groundwater |
| Bayard Water Supply | Guthrie | 405 | Community | Groundwater |
| Guthrie Grove Retreat Center | Guthrie | 352 | Transient non-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, “Casey Water Supply, PWSID IA3914081, Iowa”, https://aquacensus.com/water-systems/iowa/casey-water-supply-ia3914081 (data as of October 1, 2026).