Water Quality in Herndon, VA (20120)
EPA violation data for public water systems serving ZIP code 20120.
No Health-Based Violations
None of the 7 water systems serving this ZIP have exceeded federal contaminant limits in the past 5 years. There are2 monitoring/reporting violations (missed testing deadlines), all resolved.
Better than 36% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
42,896
Population
7
Water Systems
2
Violations (5yr)
0
Health-Based
Location
Loading map...
Water Systems Serving This Area (7)
Fairfax County Water Authority
Fcwa - Lorton Wtp Old, New, & River Sta
Loudoun Water - Central System
All resolvedDulles Airport
All resolvedLeesburg, Town Of
Nokesville Square
Old Farm Winery At Hartland
Contaminants Found
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jan 2024
How Does This Compare?
Herndon (20120) has more violations than 36% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 2, 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.