Water Quality in Twin Falls, ID (83341)
EPA violation data for public water systems serving ZIP code 83341.
No Health-Based Violations
None of the 11 water systems serving this ZIP have exceeded federal contaminant limits in the past 5 years. There are15 monitoring/reporting violations (missed testing deadlines), all resolved.
Better than 74% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
9,531
Population
11
Water Systems
15
Violations (5yr)
0
Health-Based
Location
Loading map...
Water Systems Serving This Area (11)
Twin Falls City Of
All resolvedKimberly City Of
All resolvedPurity Water Company And Idaho Waters
S&S
Nielsons Country Court
Usda Ars
All resolvedKws Seeds Llc
Pleasant Valley Golf Course
All resolvedBlue Moon Properties
Idaho Power Twin Falls Power Plt & Park
Agri-Service
All resolvedContaminants Found
At high levels, nitrate can cause blue baby syndrome in infants.
Missed testing deadlines — not a detection of bacteria.
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 (83341) has more violations than 74% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 15, most of which are monitoring/reporting issues.
Water Filter Recommendations
No contaminant issues detected. For general protection, a basic carbon filter removes common impurities like chlorine and sediment. Look for NSF/ANSI 42 certified products.