Seguin
Is Seguin tap water safe to drink?
Use extra caution — Seguin scores 39/100. This report aggregates EPA drinking water data across 2 local systems in Seguin. We found 380 total violations (73 unresolved).
Real-Time Environment
Live: 01:30 PM☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Seguin.
Water Quality Impact
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in Seguin?
Expert Advice
Given the safety margin, a Carbon Block or sediment filter is recommended to improve taste and remove trace particulates.
Buying a Filter?
Should you buy a water purifier in Seguin? See our analysis.
Baby Formula Safety
Is Seguin tap water safe for infants? Critical safety guide.
Homebuyer's Perspective
For those looking to relocate to Seguin, water quality is a key factor in long-term property maintenance. With a score of 39/100, we recommend budgeting for high-quality point-of-entry filtration systems to protect your home's value.
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 Seguin
Based on EPA SDWIS violation records and contaminant test results for all water systems serving Seguin.
Frequently Asked Questions
Is Seguin tap water safe to drink?
Use extra caution — Seguin scores 39/100.
How many water systems serve Seguin?
Seguin is served by 2 public water systems in our latest EPA-backed dataset.
How can I check water quality for my exact address in Seguin?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Seguin.
What is the water quality score for Seguin?
The water quality score for Seguin is 39 out of 100, based on EPA contaminant data, violation history, and testing results across the 2 systems serving the city.
What are the top contaminants in Seguin?
The top contaminants detected in Seguin include Lead (90th percentile). View detailed information on our contaminants page.
Seguin Water Quality Summary
Seguin, TX receives a water quality score of 39/100 (Grade F) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 2 public water systems serving the area.
Seguin's water quality score is below the national average, indicating a history of EPA violations or elevated contaminant levels. Residents are encouraged to check their specific water system report and consider additional filtration.
Seguin's score of 39 is 37 points below the Texas state average of 76, and below the nationwide average of roughly 78/100 across all U.S. states.
Situated in a South-central Texas region characterized by large urban centers, the oil and gas industry, and varied geology, the mid-size city of Seguin faces notable challenges with its municipal water systems. These local systems have received a failing evaluation, suggesting that tap water quality is significantly compromised. For current residents and prospective homebuyers, this means relying on municipal water may require extra caution and the consideration of household treatment systems. Prospective residents are encouraged to look closely at local water system reports when evaluating properties in the area.
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
Get notified if Seguin's water quality changes
Free email alert when the EPA reports a new violation or boil-water advisory for your water system. No spam — just the alerts you asked for.
By subscribing you agree to receive occasional water-quality alert emails. Unsubscribe anytime. See our Privacy Policy.
Water Systems Serving Seguin (2)
Check Your Specific Address
Water quality can vary by neighborhood in Seguin.
Related
Quick compare in Texas
Compare Seguin water quality: View all states · Contaminant library · How we score water quality