C
55

Fair Water Quality

Broomfield, CO 80021

Jefferson County · Population served: 1,596,481 · Data updated March 2026

Water Systems Serving This Area

🌊
GREATROCK NORTH WSD
Groundwater · Pop. 1,250
PWSID: CO0101063
🏔
WESTMINSTER CITY OF
Surface water · Pop. 202,078
PWSID: CO0101170
🏔
BROOMFIELD CITY AND COUNTY OF
Surface water · Pop. 106,153
PWSID: CO0107155
🏔
DENVER WATER BOARD
Surface water · Pop. 1,287,000
PWSID: CO0116001

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
10.0
15 ppb 1 ppb Warning

Violation History (Last 5 Years)

26Total (5yr)
4Health-Based
22Major

Water Quality Summary

Understanding Your Water in Broomfield

Tap water quality in Broomfield, Colorado (80021) receives an overall grade of C (Fair) with a score of 55 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 10 points below the Colorado state average of 65. Compared to the national average (75), this area scores significantly lower. The area is served by 4 water systems providing water to approximately 1,596,481 people, using surface water and groundwater sources. Testing has found elevated levels of Lead that warrant attention. Over the past 5 years, water systems here have accumulated 26 violations, including 4 health-based violations.

Your Score 55/100 C
vs State 10 pts below Colorado avg (65)
vs National 20 pts below national avg (75)

What a Grade C Means

A score of 55/100 indicates fair water quality in Broomfield, CO. While the water meets minimum federal standards, there are noteworthy concerns — either elevated contaminant levels approaching regulatory limits, a moderate violation history, or both. Residents may want to review specific contaminant data and consider targeted filtration, especially for sensitive groups like children and pregnant women.

Surface water: sourced from rivers, lakes, or reservoirs
Groundwater: drawn from underground aquifers via wells

Health Information

What These Contaminants Mean for You

⚠️

Lead in Your Water

Lead is a toxic metal that can leach from aging pipes and plumbing fixtures.

Health Effects

Even low levels of lead exposure can cause developmental delays in children, kidney damage, and cardiovascular effects in adults. The EPA action level is 15 ppb, but health experts recommend no safe level of lead in drinking water.

Common Sources

Lead enters water primarily through corrosion of lead service lines, lead solder, and brass fixtures — especially in homes built before 1986.

What You Can Do

If lead is detected above 1 ppb, consider using a certified lead-removal filter (NSF/ANSI 53) for drinking and cooking water. Run cold water for 30 seconds before use if water has been sitting in pipes.

Common Questions

Frequently Asked Questions

Tap water in Broomfield, Colorado receives a grade of C (Fair) with a score of 55/100. While it generally meets minimum federal standards, there are some areas of concern including violation history or elevated contaminant levels. Sensitive populations (children, pregnant women, elderly) may want to consider additional filtration.

ZIP code 80021 is served by 4 water systems using surface water, groundwater sources, providing water to approximately 1,596,481 people. Multiple source types mean your water may come from a blend of surface and underground sources.

Lead was detected at 10.0 ppb in Broomfield, Colorado. While this is below the EPA action level of 15 ppb, it exceeds the health guideline of 1 ppb recommended by health organizations. Consider a certified lead filter, especially if you have young children.

No PFAS ("forever chemicals") were detected in water systems serving Broomfield, Colorado during the most recent EPA monitoring period (UCMR5). However, not all water systems have been tested for all PFAS compounds, and new contamination can occur over time.

Water systems serving Broomfield, Colorado have received 26 violations in the last 5 years, including 4 health-based violations. Violations can range from paperwork issues (monitoring & reporting) to serious health-based violations where contaminant levels exceeded safe limits. Review the violation details above for specifics.

Based on detected contaminants (lead), residents in Broomfield, Colorado should consider: NSF/ANSI 53 certified filter — specifically rated for lead reduction. Pitcher filters (like Brita Longlast or PUR) and under-sink systems both work. Always look for filters with NSF/ANSI certification for the specific contaminants you want to remove.

Explore Nearby

Water Quality in Nearby ZIP Codes