Clarion Water Supply
EPA ID: IA9909031 · 2,810 people served · 1 ZIP code
ZipCheckup's reading of EPA records for Clarion Water Supply (IA9909031): no drinking-water violations recorded since 2021. Across the reporting cycles included in federal data, Clarion Water Supply has no EPA violation entries - the file covers a service population of approximately 2,810 residents and says nothing about individual household plumbing.
Data: EPA SDWIS
Service Area Map
Coverage area for Clarion Water Supply Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Clarion Water Supply have a median household income of $59,875 and about 3,196 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 75% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: On average, 40% of census tracts in the counties mapped to this service area are designated disadvantaged by the federal Climate and Economic Justice Screening Tool (CEJST, 2022 version). Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.
💧 Where Does Your Water Come From?
Clarion Water Supply's water is classified in EPA records as a groundwater source. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in Iowa
System Overview
Clarion Water Supply (EPA ID: IA9909031) is a community water system in Iowa that serves approximately 2,810 people from groundwater sources.
This system serves ZIP code 50525 in Clarion.
Violation History
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.006 mg/L | No | 2024-12-31 |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
Radon Risk in Service Area
1 of 1 ZIP records with known zones is in EPA Radon Zone 1.
The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.
ZIP Codes Served
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by IA or modeled from parcel and building-footprint data.
- 50525 - Clarion
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Clarion Water Supply (IA9909031) on EPA.gov.
Frequently Asked Questions
Is Clarion Water Supply water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Clarion Water Supply in the inclusive 2021-2026 record-year window. This is a compliance-record finding, not a guarantee about water at a specific tap.
How many people does Clarion Water Supply serve?
Clarion Water Supply serves approximately 2,810 people across 1 ZIP code in Iowa.
Where does Clarion Water Supply get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Clarion Water Supply Water Quality Report, IA. https://zipcheckup.com/water-system/ia9909031/
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title = {{Clarion Water Supply Water Quality Report, IA}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/ia9909031/}
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