C
55

Fair Water Quality

Mountain Home A F B, ID 83648

Elmore County · Population served: 7,500 · Data updated March 2026

Water Systems Serving This Area

🌊
MOUNTAIN HOME AIR FORCE BASE
Groundwater · Pop. 7,500
PWSID: ID4200054

PFAS / Forever Chemicals

4 detected All below limits
CompoundLevelEPA MCLHealth GuidelineStatus
PFHxA13.0 pptNo standard400 pptUnregulated
PFHxS10.0 ppt10 ppt10 pptBelow limit
PFPeA6.7 pptNo standardUnregulated
PFBS4.8 ppt2000 ppt100 pptBelow limit

Violation History (Last 5 Years)

209Total (5yr)
2Health-Based
202Major

Water Quality Summary

Understanding Your Water in Mountain Home A F B

Tap water quality in Mountain Home A F B, Idaho (83648) receives an overall grade of C (Fair) with a score of 55 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 14 points below the Idaho state average of 69. Compared to the national average (75), this area scores significantly lower. The area is served by Mountain Home Air Force Base, a groundwater system providing water to approximately 7,500 people. PFAS testing detected 4 compounds, all currently below EPA limits. Over the past 5 years, water systems here have accumulated 209 violations, including 2 health-based violations.

Your Score 55/100 C
vs State 14 pts below Idaho avg (69)
vs National 20 pts below national avg (75)

What a Grade C Means

A score of 55/100 indicates fair water quality in Mountain Home A F B, ID. While the water meets minimum federal standards, there are noteworthy concerns — either elevated contaminant levels approaching regulatory limits, a moderate violation history, or both. Residents may want to review specific contaminant data and consider targeted filtration, especially for sensitive groups like children and pregnant women.

Groundwater: drawn from underground aquifers via wells

Common Questions

Frequently Asked Questions

Tap water in Mountain Home A F B, Idaho receives a grade of C (Fair) with a score of 55/100. While it generally meets minimum federal standards, there are some areas of concern including violation history or elevated contaminant levels. Sensitive populations (children, pregnant women, elderly) may want to consider additional filtration.

ZIP code 83648 is served by 1 water system using groundwater sources, providing water to approximately 7,500 people. Groundwater is naturally filtered through rock and soil, often requiring less treatment. However, it can be vulnerable to contamination from underground sources like naturally occurring arsenic, nitrates from agriculture, or PFAS from industrial sites.

No lead data is currently available for ZIP code 83648. This may mean lead testing results haven't been reported recently, or the serving water system uses monitoring waivers. You can request a free lead test kit from most water utilities or purchase a certified home testing kit.

4 PFAS compounds were detected in water serving Mountain Home A F B, Idaho, but all are currently below EPA limits. While levels are within regulatory standards, some health organizations recommend minimizing any PFAS exposure. Activated carbon or reverse osmosis filters can reduce PFAS levels.

Water systems serving Mountain Home A F B, Idaho have received 209 violations in the last 5 years, including 2 health-based violations. Violations can range from paperwork issues (monitoring & reporting) to serious health-based violations where contaminant levels exceeded safe limits. Review the violation details above for specifics.

Based on detected contaminants (PFAS), residents in Mountain Home A F B, Idaho should consider: Reverse osmosis (RO) system — most effective for PFAS, lead, and other contaminants. Always look for filters with NSF/ANSI certification for the specific contaminants you want to remove.

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