Littleton
Is Littleton tap water safe to drink?
Mostly yes — Littleton scores 93/100. This report aggregates EPA drinking water data across 9 local systems in Littleton. We found 257 total violations (18 unresolved).
Real-Time Environment
Live: 04:15 PM☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Littleton.
Water Quality Impact
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in Littleton?
Expert Advice
Your water quality is excellent. Standard filtration is optional but can further enhance taste.
Buying a Filter?
Wondering if Littleton tap water needs filtering? We break it down.
Baby Formula Safety
Mixing baby formula with Littleton tap water? Read this first.
Homebuyer's Perspective
If you're house-hunting in Littleton, water quality belongs on your due-diligence checklist alongside schools and crime data. The high safety score (93/100) suggests lower risk for plumbing corrosion and appliance scaling.
Health & Family Safety
Residents should monitor Lead (90th percentile) levels. Pregnant women and families with young children should consult the specific EPA health goals listed below.
View Health Risk Glossary →Compliance Record for Littleton
Based on EPA SDWIS violation records and contaminant test results for all water systems serving Littleton.
Frequently Asked Questions
Is Littleton tap water safe to drink?
Mostly yes — Littleton scores 93/100.
How many water systems serve Littleton?
Littleton is served by 9 public water systems in our latest EPA-backed dataset.
How can I check water quality for my exact address in Littleton?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Littleton.
What is the water quality score for Littleton?
The water quality score for Littleton is 93 out of 100, based on EPA contaminant data, violation history, and testing results across the 9 systems serving the city.
What are the top contaminants in Littleton?
The top contaminants detected in Littleton include Lead (90th percentile). View detailed information on our contaminants page.
Littleton Water Quality Summary
Littleton, CO receives a water quality score of 93/100 (Grade A) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 9 public water systems serving the area.
Littleton's water quality is above the national average, with strong compliance records and low contaminant levels. Residents generally receive clean, safe tap water that meets EPA standards.
Littleton's score of 93 is 11 points above the Colorado state average of 82, and above the nationwide average of roughly 78/100 across all U.S. states.
Littleton, a mid-size Colorado city, benefits from high-elevation source water typical of the Mountain West, which provides a clean foundation for the area's drinking supply. Although the surrounding region's historic hardrock mining legacy requires vigilant treatment to address potential mineral runoff, local water networks consistently deliver outstanding quality. For residents and prospective homebuyers, this high level of safety across the community's multiple distribution systems offers reliable assurance for daily household use.
Water quality data is sourced from the U.S. EPA SDWIS database and updated quarterly. Learn about our scoring methodology → Read our Colorado water quality rankings report →
Key Contaminants
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Water Systems Serving Littleton (9)
Sterling Ranch Cab
APlatte Canyon Wsd
ASouthwest Metropolitan Wsd
ALakehurst Wsd
ARoxborough Wsd
AKen Caryl Wsd
AEagle River Village Mhp
BNorthbrook Villas Mhc
AFoxridge Farms Mhp
CCheck Your Specific Address
Water quality can vary by neighborhood in Littleton.
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Compare Littleton water quality: View all states · Contaminant library · How we score water quality