Water Quality in Twin Falls, ID (83328)
EPA violation data for public water systems serving ZIP code 83328.
Active Health Violations
4 health-based violations found in the past 5 years, with at least one still unresolved. Contaminant levels have exceeded federal safety limits. Consider testing your tap water independently.
More violations than 96% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
6,320
Population
12
Water Systems
95
Violations (5yr)
4
Health-Based
Location
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Water Systems Serving This Area (12)
Twin Falls City Of
All resolvedFiler Water Works
1 health-basedCasa Grande Apartments
Community Christian Church
All resolvedCountry Vu Park
Curry Junction
Legacy Fields
Pebble Ponds Golf Course
All resolvedCurry Trailer Park
Cedar Lanes Bowling Alley
Bayer R&D
3 health-basedEvaqua Farms Llc
Contaminants Found
A naturally occurring element that can cause cancer and other health effects at high levels.
Missed testing deadlines — not a detection of bacteria.
At high levels, nitrate can cause blue baby syndrome in infants.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Used to disinfect water — generally safe at regulated levels.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jul 2025
How Does This Compare?
Twin Falls (83328) has more violations than 96% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 95.
Recommended Water Filters
Based on health-based violations detected in your area, these filter types are commonly used to address similar contaminants. Consult your water utility's Consumer Confidence Report for the most current data.
Reverse Osmosis System
Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.
Targets:Lead, Copper, Arsenic, Mercury, Cadmium
Look for:NSF/ANSI 58 certified
Always look for filters certified by NSF International for the specific contaminants you want to remove. This is general educational information, not an endorsement of any specific product.