Water Quality in Boulder, CO (80304)
EPA violation data for public water systems serving ZIP code 80304.
No Health-Based Violations
None of the 8 water systems serving this ZIP have exceeded federal contaminant limits in the past 5 years. There are9 monitoring/reporting violations (missed testing deadlines), all resolved.
Better than 65% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
25,383
Population
8
Water Systems
9
Violations (5yr)
0
Health-Based
Location
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Water Systems Serving This Area (8)
Boulder City Of
All resolvedLongmont City Of
All resolvedErie Town Of
Lafayette City Of
All resolvedPine Brook Hills Wd
Spring Valley Mutual Wa
All resolvedSundance Cafe And Lodge
New Horizons Coop Preschool
Contaminants Found
Annual water quality report delivery requirement.
Used to disinfect water — generally safe at regulated levels.
Missed testing deadlines — not a detection of bacteria.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jan 2025
How Does This Compare?
Boulder (80304) has more violations than 65% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 9, 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.