Water Quality in Boulder, CO (80544)

EPA violation data for public water systems serving ZIP code 80544.

Past Health-Based Violations

2 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 16 monitoring/reporting violations.

More violations than 77% of US ZIP codes.

Based on EPA compliance data. Not a substitute for an official water quality report from your utility.

0

6

Water Systems

18

Violations (5yr)

2

Health-Based

Location

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Water Systems Serving This Area (6)

Boulder City Of

All resolved
Surface water 166,080 people served
2 violations (5yr) · All resolved
Lead tested: 2 ppb (limit: 15 ppb)

Longmont City Of

All resolved
Surface water 102,866 people served
2 violations (5yr) · All resolved
Lead tested: 1.6 ppb (limit: 15 ppb)

Erie Town Of

Surface water 40,061 people served
0 violations
Lead tested: 2.6 ppb (limit: 15 ppb)

Lafayette City Of

All resolved
Surface water 28,700 people served
4 violations (5yr) · All resolved
Lead tested: 2 ppb (limit: 15 ppb)

Left Hand Wd

Surface water 20,280 people served
0 violations
Lead tested: 1 ppb (limit: 15 ppb)

Alpine Brook Ws

2 health-based
Surface water 100 people served
10 violations (5yr) · 2 health-based · All resolved

Contaminants Found

Surface Water Treatment RuleHealth-Based
7 violations
All resolved
Interim Enhanced Surface Water Treatment RuleMonitoring
3 violations
All resolved
Revised Total Coliform RuleMonitoring

Missed testing deadlines — not a detection of bacteria.

2 violations
All resolved
Public NoticeMonitoring
2 violations
All resolved
Total Haloacetic Acids (HAA5)Monitoring
1 violation
All resolved
TTHMMonitoring
1 violation
All resolved
ChlorineMonitoring

Used to disinfect water — generally safe at regulated levels.

1 violation
All resolved
Consumer Confidence RuleMonitoring

Annual water quality report delivery requirement.

1 violation
All resolved

Lead & Copper Levels

Lead (Pb)

Within limit
2.6 ppb measured Action level: 15 ppb

Sampled: Jan 2025

How Does This Compare?

Boulder (80544) has more violations than 77% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 18.

Fewer violations 77th percentile More violations

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.

Whole House Carbon Filter

A solid baseline for improving overall water quality. Reduces chlorine, sediment, and many common contaminants throughout your entire home.

Targets:Chlorine, Sediment, Taste & Odor

Look for:NSF/ANSI 42 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.

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