Public water system · IA9909031
ActiveClarion Water Supply
At a glance
Clarion Water Supply (PWSID IA9909031) is an active community water system in Wright County, Iowa. It reports serving 2,810 people through 1,284 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; 1 is health-based, and the most recent began in August 2020.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
2,810
Service connections
1,284
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Clarion Water Supply compare with other water systems in Wright County?
By EPA's size categories, Clarion Water Supply is a small system (501 to 3,300 people). Wright County has 22 active public water systems, and Clarion Water Supply is the 2nd-largest of them by population served. Its population served is about 5.1 times the county average of 552 people per system, and accounts for 23% of the 12,136 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 Clarion Water Supply is about 58% 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 Clarion Water Supply?
EPA lists Clarion 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 22 active systems in Wright County (41%) are also owned by a local government.
Does Clarion Water Supply have drinking water violations?
EPA's records list 3 violations for this system; 1 is health-based, and the most recent began in August 2020. The violations listed here began between May 2006 and August 2020. By type: 2 monitoring and reporting and 1 contaminant level above the legal limit. The contaminants or rules involved are Haloacetic acids (HAA5), Total trihalomethanes (TTHM) and Total coliform bacteria (TCR). 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 |
|---|---|---|---|---|
| 2020-08-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2020-08-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2006-05-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | 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.
Clarion Water Supply: frequently asked questions
Who runs Clarion Water Supply?
Clarion Water Supply (PWSID IA9909031) is a community water system owned by a local government. It is regulated by the IA state drinking water program.
How many people does Clarion Water Supply serve?
Clarion Water Supply reports serving 2,810 people through 1,284 service connections in Wright County, Iowa.
Where does Clarion 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 Clarion Water Supply have any drinking water violations?
EPA's records list 3 violations for this system; 1 is health-based, and the most recent began in August 2020. 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 Clarion 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; 1 is health-based, and the most recent began in August 2020. For current results, consult the system's annual water quality report, EPA ECHO, or the IA state drinking water program.
Where can I find Clarion Water Supply's water quality report?
As a community water system, Clarion 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 Wright County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Eagle Grove Water Supply | Wright | 3,601 | Community | Groundwater |
| Belmond Water Supply | Wright | 2,463 | Community | Groundwater |
| Prestage Foods of Iowa | Wright | 800 | Non-transient non-community | Groundwater |
| Goldfield Water Supply | Wright | 634 | Community | Groundwater |
| Dows Water Supply | Wright | 526 | Community | Groundwater |
| Daybreak Foods Eagle Grove Complex | Wright | 210 | Non-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, “Clarion Water Supply, PWSID IA9909031, Iowa”, https://aquacensus.com/water-systems/iowa/clarion-water-supply-ia9909031 (data as of October 1, 2026).