Iona Water Department
EPA ID: ID7100041 · 2,717 people served · 2 ZIP codes
ZipCheckup's reading of EPA records for Iona Water Department (ID7100041): no drinking-water violations recorded since 2021. EPA monitoring records reviewed for Iona Water Department list no violations. That describes the federal file only, not a test of the water at any tap, for a utility that reports serving approximately 2,717 people.
Data: EPA SDWIS
Service Area Map
Coverage area for Iona Water Department Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Iona Water Department have a median household income of $79,144 and about 49,989 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 46% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Iona Water Department'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 Idaho
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
Iona Water Department (EPA ID: ID7100041) is a community water system in Idaho that serves approximately 2,717 people from groundwater sources.
This system provides water to 2 ZIP codes across 2 communities.
Violation History
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| Below the reporting limit | No | 2023-12-31 |
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
2 of 2 ZIP records with known zones are in EPA Radon Zone 2.
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 ID or modeled from parcel and building-footprint data.
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Iona Water Department (ID7100041) on EPA.gov.
Frequently Asked Questions
Is Iona Water Department water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Iona Water Department 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 Iona Water Department serve?
Iona Water Department serves approximately 2,717 people across 2 ZIP codes in Idaho.
Where does Iona Water Department get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Iona Water Department Water Quality Report, ID. https://zipcheckup.com/water-system/id7100041/
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title = {{Iona Water Department Water Quality Report, ID}},
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url = {https://zipcheckup.com/water-system/id7100041/}
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