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WaterSafeCheck

Iona, ID Tap Water Quality

Water safety reports for all 1 ZIP code in Iona, Idaho

Average Score

72/100

Health Violations

3

ZIP Codes

1

High Lead Risk

0

of 1 ZIP codes

B

About Tap Water in Iona, ID

The drinking water in Iona, ID generally meets all federal health standards, earning a solid B grade with a composite safety score of 72/100 across 1 ZIP code. While the primary water utility, Iona Water Department, maintains adequate compliance with EPA regulations, there have been minor or administrative violations on record. Overall, residents receive safe tap water that is actively monitored by Idaho Department of Environmental Quality.

Over the past 5 years, Iona has recorded 3 health-based violations. While occasional violations can occur due to seasonal changes or temporary infrastructure issues, Iona Water Department is legally required to resolve these quickly and notify the public via their annual Consumer Confidence Report. The city's water supply, primarily drawn from ground water, is treated to address these specific contaminants.

Fortunately, the modeled risk for widespread lead exposure in Iona's municipal water is relatively low compared to national averages. However, because lead typically enters drinking water through the corrosion of older, individual home plumbing rather than the main supply lines, residents in homes built before 1986 should still exercise caution by running the tap before use.

Health-Based Contaminant Violations in Iona

EPA records indicate that the following contaminants have exceeded Safe Drinking Water Act Maximum Contaminant Levels (MCLs) in Iona water systems over the past 5 years.

Consumer Confidence Report Rule

Note: The presence of a past violation does not necessarily mean current water is unsafe. Utilities are required to take corrective action. Review your Consumer Confidence Report for the latest status.

Water Quality by ZIP Code — Iona, ID

Click any ZIP code for the full water quality report

B
83427

Iona, ID

Score: 72/1003 violations

Frequently Asked Questions — Iona Water Quality

Is tap water safe to drink in Iona, ID?+
Yes — tap water in Iona meets all federal EPA standards and earns a B grade. It is generally safe for healthy adults. As always, running your tap for 30 seconds before use and using a filter adds extra protection for vulnerable populations.
What is the water quality score for Iona?+
The average water quality score across 1 ZIP code in Iona, ID is 72/100. Scores are derived from EPA violation history, lead levels, enforcement actions, and infrastructure risk indicators. Individual ZIP codes may vary — search your specific ZIP above for a personalized report.
Does Iona have lead in its tap water?+
Lead risk ratings in Iona are relatively low based on EPA monitoring data. However, lead in home plumbing is a separate concern — if your home was built before 1986, individual tap testing is recommended.
How do I get the water quality report for Iona?+
Each ZIP code in Iona has a full water quality report on this site — click any ZIP code below. You can also get the annual Consumer Confidence Report (CCR) from your local water utility. The CCR is required to be published every year by July 1 and contains actual contaminant measurements and violation history.
Where does Iona's tap water come from?+
Tap water in Iona, ID primarily comes from ground water. Groundwater systems pump water from underground aquifers, which is naturally filtered through soil and rock but can still contain naturally occurring contaminants.

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