Water Quality in Nephi, UT (84628)
EPA violation data for public water systems serving ZIP code 84628.
No Health-Based Violations
None of the 5 water systems serving this ZIP have exceeded federal contaminant limits in the past 5 years. There are34 monitoring/reporting violations (missed testing deadlines), all resolved.
Better than 86% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
871
Population
5
Water Systems
34
Violations (5yr)
0
Health-Based
Location
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Water Systems Serving This Area (5)
Nephi City
All resolvedEureka Town
All resolvedTintic Consolidated Water System
All resolvedMammoth Water Users
West Desert School
Contaminants Found
Annual water quality report delivery requirement.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
At high levels, nitrate can cause blue baby syndrome in infants.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jul 2025
How Does This Compare?
Nephi (84628) has more violations than 86% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 34, 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.