WaterQ
Texas State Report All States
Official Status: March 2026

Is South Houston tap water safe to drink?

✓ Generally Safe
A

Mostly yes — South Houston scores 91/100.

Safety Score
91
out of 100

Still not sure if you need a filter in South Houston?

Read Decision Guide →
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South Houston

Texas

View Texas state report Data updated: Mar 2026

Is South Houston tap water safe to drink?

Mostly yes — South Houston scores 91/100. This report aggregates EPA drinking water data across 1 local system in South Houston. We found 29 total violations (8 unresolved).

Real-Time Environment

Live: 07:30 PM
0mm Precipitation

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

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 South Houston?

Requirement Status
Optional
🟢
💡

Expert Advice

Your water quality is excellent. Standard filtration is optional but can further enhance taste.

Buying a Filter?

Filter or no filter for South Houston water? Here's what the data says.

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Baby Formula Safety

What new parents in South Houston should know about tap water safety.

→

Homebuyer's Perspective

Water quality is easy to overlook when evaluating a move to South Houston, but it can affect plumbing longevity and appliance lifespan. The high safety score (91/100) suggests lower risk for plumbing corrosion and appliance scaling.

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 South Houston

29
Violations (5yr)
8
Unresolved
1
Contaminants Tracked
0
Exceeding EPA Limit

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

Frequently Asked Questions

Is South Houston tap water safe to drink?

Mostly yes — South Houston scores 91/100.

How many water systems serve South Houston?

South Houston is served by 1 public water system in our latest EPA-backed dataset.

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

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

What is the water quality score for South Houston?

The water quality score for South Houston is 91 out of 100, based on EPA contaminant data, violation history, and testing results across the 1 system serving the city.

What are the top contaminants in South Houston?

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

Water Quality Score
91/100
Grade
A
Water Systems
1
Population
17,397

South Houston Water Quality Summary

South Houston, TX receives a water quality score of 91/100 (Grade A) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 1 public water system serving the area.

South Houston'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.

South Houston's score of 91 is 15 points above the Texas state average of 76, and above 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)
0.0012 / 0.015 mg/L
0 mg/L MCL: 0.015 mg/L

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Water Systems Serving South Houston (1)

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Related

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