Water Quality in Boulder, CO (80510)
EPA violation data for public water systems serving ZIP code 80510.
Past Health-Based Violations
10 health-based violations were found in the past 5 years, meaning contaminant levels exceeded federal safety limits. All have since been resolved. There are also 35 monitoring/reporting violations.
More violations than 90% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
663
Population
20
Water Systems
45
Violations (5yr)
10
Health-Based
Location
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Water Systems Serving This Area (20)
Boulder City Of
All resolvedLongmont City Of
All resolvedErie Town Of
Lafayette City Of
All resolvedAllenspark Wsd
All resolvedMeeker Park Lodge
10 health-basedMeeker Park Wtr
Jackman Pine Grove Cabins
Crystal Spring Water
Meadow Mtn Water Supply
All resolvedLazy H Guest Ranch
Lazy H Guest Ranch
Ferncliff Food N Fuel
All resolvedMeadow Mtn Wtr Supply Co
Wild Basin Lodge
Meadow Mtn W&S Dist
St Malos Retreat
Camp St Malo
Indian Peaks Restraunt Cottage
Allanspark Crystal Spring Wc
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
Used to disinfect water — generally safe at regulated levels.
Annual water quality report delivery requirement.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jul 2025
How Does This Compare?
Boulder (80510) has more violations than 90% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 45.
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.
UV Water Purifier
Uses ultraviolet light to neutralize bacteria, viruses, and parasites without chemicals. Ideal for homes with microbial contamination concerns.
Targets:E. coli, Coliform, Giardia, Cryptosporidium
Look for:NSF/ANSI 55 (Class A) 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.