WaterQ
Texas State Report All States
Official Status: March 2026

Is Denison tap water safe to drink?

⚠ Caution Advised
B

Generally acceptable, but review local hotspots — score 72/100.

Safety Score
72
out of 100

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Denison

Texas

View Texas state report Data updated: Mar 2026

Is Denison tap water safe to drink?

Generally acceptable, but review local hotspots — score 72/100. This report aggregates EPA drinking water data across 4 local systems in Denison. We found 263 total violations (75 unresolved).

Real-Time Environment

Live: 05:15 AM
0mm Precipitation

☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Denison.

Water Quality Impact

✅ Minimal Impact Localized weather conditions may influence test result variability.

🛡️ Home Water Treatment Needs

Should you invest in filtration or softening for your home in Denison?

Requirement Status
Recommended
🟡
💡

Expert Advice

Given the safety margin, a Carbon Block or sediment filter is recommended to improve taste and remove trace particulates.

Buying a Filter?

Filtration technologies matched to Denison contaminant records.

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Baby Formula Safety

Guidance on preparing infant formula using municipal tap water in Denison.

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Homebuyer's Perspective

Municipal water quality in Denison directly influences pipe corrosion rates and home filtration needs. With a score of 72/100, we recommend budgeting for high-quality point-of-entry filtration systems to protect your home's value.

Property Impact: Positive / Stable

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 Denison

263
Violations (5yr)
75
Unresolved
1
Contaminants Tracked
0
Exceeding EPA Limit

Based on EPA SDWIS violation records and contaminant test results for all water systems serving Denison.

Frequently Asked Questions

Is Denison tap water safe to drink?

Generally acceptable, but review local hotspots — score 72/100.

How many water systems serve Denison?

Denison is served by 4 public water systems in our latest EPA-backed dataset.

How can I check water quality for my exact address in Denison?

Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Denison.

What is the water quality score for Denison?

The water quality score for Denison is 72 out of 100, based on EPA contaminant data, violation history, and testing results across the 4 systems serving the city.

What are the top contaminants in Denison?

The top contaminants detected in Denison include Lead (90th percentile). View detailed information on our contaminants page.

Water Quality Score
72/100
Grade
C
Water Systems
4
Population
34,780

Denison Water Quality Summary

Denison, TX receives a water quality score of 72/100 (Grade C) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 4 public water systems serving the area.

Denison's water quality is near the national average. While most systems meet EPA standards, some violations have been recorded. Residents may wish to review their specific water system's report for contaminant details.

Denison's score of 72 is 4 points below the Texas state average of 76, and below the nationwide average of roughly 78/100 across all U.S. states.

Water quality data is sourced from the U.S. EPA SDWIS database and updated quarterly. Learn about our scoring methodology → Read our Texas water quality rankings report →

Key Contaminants

Lead (90th percentile)
0.00182 / 0.015 mg/L
0 mg/L MCL: 0.015 mg/L

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Water Systems Serving Denison (4)

Related

Compare Denison water quality: View all states · Contaminant library · How we score water quality