F
18

Failing Water Quality

Clyde, TX 79510

Callahan County · Population served: 18,898 · Data updated March 2026

Water Systems Serving This Area

🏔
CITY OF CLYDE
Surface water · Pop. 3,820
PWSID: TX0300002
🏔
EULA WSC
Surface water · Pop. 3,918
PWSID: TX0300005
🏔
CALLAHAN COUNTY WSC
Surface water · Pop. 3,747
PWSID: TX0300015
🏔
POTOSI WSC
Surface water · Pop. 7,413
PWSID: TX2210008

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
8.3
15 ppb 1 ppb Warning

PFAS / Forever Chemicals

25 detected 9 above EPA limits
CompoundLevelEPA MCLHealth GuidelineStatus
PFBA31.0 pptNo standard500 pptUnregulated
PFHxS22.5 ppt10 ppt10 pptExceeded
PFBA22.0 pptNo standard500 pptUnregulated
PFHxS21.3 ppt10 ppt10 pptExceeded
PFOS21.0 ppt4 ppt4 pptExceeded
PFOS20.0 ppt4 ppt4 pptExceeded
PFHxS19.9 ppt10 ppt10 pptExceeded
PFHxA16.4 pptNo standard400 pptUnregulated

Violation History (Last 5 Years)

188Total (5yr)
140Health-Based
11Major

Water Quality Summary

Understanding Your Water in Clyde

Tap water quality in Clyde, Texas (79510) receives an overall grade of F (Failing) with a score of 18 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 50 points below the Texas state average of 68. Compared to the national average (75), this area scores significantly lower. The area is served by 4 water systems providing water to approximately 18,898 people, using surface water sources. Testing has found elevated levels of Lead that warrant attention. Notably, 9 PFAS compounds exceed EPA limits — a significant concern given the persistent nature of these chemicals. Over the past 5 years, water systems here have accumulated 188 violations, including 140 health-based violations.

Your Score 18/100 F
vs State 50 pts below Texas avg (68)
vs National 57 pts below national avg (75)

What a Grade F Means

A score of 18/100 indicates serious water quality failures in Clyde, TX. The water system has significant violations, contaminant exceedances, or enforcement actions. Residents should strongly consider using a certified water filtration system for drinking and cooking water, requesting their utility's latest test results, and potentially having their water independently tested.

Surface water: sourced from rivers, lakes, or reservoirs

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 Clyde, Texas receives a grade of F (Failing) with a score of 18/100. This indicates significant water quality concerns based on violation history, contaminant levels, or enforcement actions. We recommend reviewing the specific contaminants detected below and considering a certified water filter.

ZIP code 79510 is served by 4 water systems using surface water sources, providing water to approximately 18,898 people. Surface water systems are more susceptible to contamination from agricultural runoff, industrial discharge, and weather events, but typically undergo more extensive treatment including filtration and disinfection.

Lead was detected at 8.3 ppb in Clyde, Texas. 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.

Yes — 25 PFAS compounds were detected in water serving Clyde, Texas, and 9 exceed EPA maximum contaminant levels. PFAS are persistent chemicals linked to cancer, immune system effects, and developmental issues. A reverse osmosis or activated carbon filter certified for PFAS removal is recommended.

Water systems serving Clyde, Texas have received 188 violations in the last 5 years, including 140 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, PFAS), residents in Clyde, Texas should consider: Reverse osmosis (RO) system — most effective for PFAS, lead, and other contaminants. Always look for filters with NSF/ANSI certification for the specific contaminants you want to remove.

Explore Nearby

Water Quality in Nearby ZIP Codes