Water Quality in Boulder, CO (80026)
EPA violation data for public water systems serving ZIP code 80026.
Active Health Violations
3 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.
32,701
Population
22
Water Systems
106
Violations (5yr)
3
Health-Based
Location
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Water Systems Serving This Area (22)
Boulder City Of
All resolvedBroomfield City And County Of
1 health-basedLongmont City Of
All resolvedErie Town Of
Lafayette City Of
All resolvedArbordale Acres Mhp
1 health-basedBoulder Ridge Mhp
San Lazaro Mfctd Housing Community
1 health-basedBrownsville Water & San. Dist.
Cheyenne Mountain Estates Mhp
Skylark Mobile Home Community
All resolvedAlexander Dawson School
2069 Carver Water System
Ymca Camp Tumbleson Lake
All resolvedFortune Branch Village Mhp
All resolvedLark Meadows Wa
Alex Dawson School
St Columba Church
Alexander Dawson Fndtn Camp
Maple Grove Wd
Boulder Iq
Alexander Dawson School
Contaminants Found
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Missed testing deadlines — not a detection of bacteria.
Used to disinfect water — generally safe at regulated levels.
Annual water quality report delivery requirement.
At high levels, nitrate can cause blue baby syndrome in infants.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jul 2025
How Does This Compare?
Boulder (80026) has more violations than 96% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 106.
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
Activated Carbon Filter
Excellent for removing chlorine, chloramine, and disinfection byproducts like THMs and HAAs. Available as pitcher filters, countertop, or under-sink units.
Targets:THMs, HAAs, Chlorine, Chloramine, Taste & Odor
Look for:NSF/ANSI 42 & 53 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.