Water Quality in Boulder, CO (80516)

EPA violation data for public water systems serving ZIP code 80516.

Past Health-Based Violations

1 health-based violation was found in the past 5 years, meaning contaminant levels exceeded federal safety limits. All have since been resolved. There are also 27 monitoring/reporting violations.

More violations than 84% of US ZIP codes.

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

39,048

Population

12

Water Systems

28

Violations (5yr)

1

Health-Based

Location

Loading map...

Water Systems Serving This Area (12)

Boulder City Of

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

Greeley City Of

All resolved
Surface water 132,310 people served
5 violations (5yr) · All resolved
Lead tested: 3 ppb (limit: 15 ppb)

Broomfield City And County Of

1 health-based
Surface water 106,153 people served
2 violations (5yr) · 1 health-based · All resolved
Lead tested: 2.5 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)

Mcdonald Farms Enterprises Inc

All resolved
Purchased surface water 772 people served
13 violations (5yr) · All resolved

Leisure Living

Groundwater 101 people served
0 violations

Erie Meadows

Purchased surface water 41 people served
0 violations
Lead tested: 1 ppb (limit: 15 ppb)

Dollar General #18895

Groundwater 25 people served
0 violations

North Huron Wd

Groundwater 0
0 violations

Parkland Estates Re D Mcfeeters

Groundwater 0
0 violations

Contaminants Found

Lead and Copper RuleHealth-Based

Lead and copper testing requirement. Lead exposure can cause developmental harm in children.

2 violations
All resolved
Surface Water Treatment RuleMonitoring
9 violations
All resolved
Revised Total Coliform RuleMonitoring

Missed testing deadlines — not a detection of bacteria.

4 violations
All resolved
ChloramineMonitoring
4 violations
All resolved
ChloriteMonitoring
3 violations
All resolved
Interim Enhanced Surface Water Treatment RuleMonitoring
1 violation
All resolved
Chlorine dioxideMonitoring
1 violation
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
3 ppb measured Action level: 15 ppb

Sampled: Jan 2025

How Does This Compare?

Boulder (80516) has more violations than 84% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 28.

Fewer violations 84th 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.

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

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.

Nearby ZIP Codes

Check Another ZIP Code