Tap Water Quality in Lewiston, Idaho (ZIP 83501)
Serving Lewiston, Idaho
Is the Tap Water Safe in Lewiston, Idaho?
Tap water in Lewiston, Idaho (ZIP 83501) has 21 contaminants above EPA health-based guidelines (MCLGs) in at least one of the 1 city served. We recommend reviewing detailed city reports below and considering a certified water filter for additional protection.
ZIP 83501 is served by 7 water utilities providing water to Lewiston. Water quality varies by utility and city. Click on the cities below to see detailed reports for your specific area.
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Water Quality Report for ZIP 83501
9 contaminants above EPA health guidelines
These levels represent the worst case across all cities in this ZIP code. Check individual city reports for specific details.
Found in Lewiston
Found in Lewiston
Found in Lewiston
Found in Lewiston
Found in Lewiston
Found in Lewiston
Found in Lewiston
Found in Lewiston
Found in Lewiston
Water Utilities Serving ZIP 83501
PUD #1 OF ASOTIN COUNTY
22,583
Not available
Water Source:
Groundwater
Contaminants Tested:
114
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Best Water Filters for Lewiston (ZIP 83501)
Based on the contaminants found in your area, we recommend NSF-certified water filters that can remove the specific contaminants above health guidelines.
Filter guides for the contaminants detected here:
Browse filters certified to remove Arsenic
See every filter in our database independently certified to reduce Arsenic, with the NSF/ANSI standard behind each listing — consumer brands shown first, no marketing spin.
Browse filters certified for ArsenicBrowse filters certified to remove Lead
See every filter in our database independently certified to reduce Lead, with the NSF/ANSI standard behind each listing — consumer brands shown first, no marketing spin.
Browse filters certified for LeadFrequently Asked Questions about Lewiston Tap Water
Is the tap water safe in Lewiston, Idaho (ZIP 83501)?
Which water utilities serve ZIP code 83501?
How do I pay my water bill in Lewiston (ZIP 83501)?
What contaminants are in Lewiston water (ZIP 83501)?
Should I use a water filter in Lewiston (ZIP 83501)?
What cities are in ZIP code 83501?
How we built this page
Water-quality data on this page comes from public federal and state records for the 7 utilityies serving ZIP 83501. We refresh each utility's record whenever its underlying source publishes new data.
- Contaminants & violations: EPA Safe Drinking Water Information System (SDWIS) plus the Unregulated Contaminant Monitoring Rule (UCMR-5) for PFAS and emerging contaminants.
- Annual reports: the most recent published Consumer Confidence Report (CCR) from each utility serving this ZIP, where available.
- Service area & contact: EPA SDWIS plus the Idaho Department of Environmental Protection / Drinking Water program.
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