B
74

US Water Score: B

Webster, TX 77598

Harris County · Population served: 2,970,543 · Data updated July 2026

Service-area evidence: EPA service-area records associate the listed system with this ZIP. Boundaries may still overlap or change.

Water Systems Serving This Area

🏔
CITY OF HOUSTON
Surface water · Pop. 2,970,543
PWSID: TX1010013
🏔
CITY OF LEAGUE CITY
Surface water · Pop. 128,412
PWSID: TX0840007
🏔
CLEAR LAKE CITY WATER AUTHORITY
Surface water · Pop. 89,702
PWSID: TX1010056
🏔
CITY OF WEBSTER
Surface water · Pop. 13,710
PWSID: TX1010226

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
5.0
15 ppb 1 ppb Warning

PFAS / Forever Chemicals

9 detected 1 above comparison value

UCMR5 occurrence results are screening information, not a finding of regulatory compliance or noncompliance. PFAS rules and compliance dates are evolving.

CompoundLevelEPA MCLHealth GuidelineStatus
PFPeA102.0 pptNo standardNo federal MCL shown
6:2 FTS42.6 pptNo standardNo federal MCL shown
PFBA31.9 pptNo standard500 pptNo federal MCL shown
PFHxA9.5 pptNo standard400 pptNo federal MCL shown
PFOS6.7 ppt4 ppt4 pptAbove comparison value
PFHxS6.0 ppt10 ppt10 pptBelow comparison value
PFBS5.7 ppt2000 ppt100 pptBelow comparison value
PFOA4.0 ppt4 ppt4 pptBelow comparison value

Violation History (Last 5 Years)

2Total (5yr)
1Health-Based
1Major

Water Quality Summary

Understanding Your Water in Webster

Tap water quality in Webster, Texas (77598) receives an overall grade of B (Good) with a score of 74 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 6 points below the Texas state average of 80. The area is served by 4 water systems providing water to approximately 2,970,543 people, using surface water sources. Testing has found elevated levels of Lead that warrant attention. Notably, 1 PFAS compound exceeds the EPA final MCL value used for comparison — a significant concern given the persistent nature of these chemicals. Over the past 5 years, water systems here have accumulated 2 violations, including 1 health-based violations.

Your Score 74/100 B
vs State 6 pts below Texas avg (80)
vs National 1 pts below national avg (75)

What a Grade B Means

A score of 74/100 means Webster, TX performs well in the US Water Score model, with only minor system-level concerns. Residents should still review their utility's Consumer Confidence Report for official compliance information and household-specific context.

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

Based on public water-system records, Webster, Texas receives an internal US Water Score grade of B (Good) with a score of 74/100. This indicates relatively few system-level concerns in our model, but it is not an EPA safety rating and does not guarantee tap conditions inside individual homes.

ZIP code 77598 is served by 4 water systems using surface water sources, providing water to approximately 2,970,543 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 reported at 5.0 ppb in public-system records for Webster, Texas. This is below the currently applicable EPA action level of 15 ppb, but may be above more protective health guidance; EPA's future LCRI action level is 10 ppb. Household plumbing can materially change tap-level exposure, so consider certified filtration and individual tap testing, especially where children are present.

Yes — 9 PFAS compounds were detected in records associated with water serving Webster, Texas, and 1 result exceeded the numerical EPA MCL value used for comparison. UCMR5 occurrence results alone are not a regulatory compliance determination. PFAS rules and compliance timelines are evolving; verify current information with the utility and EPA.

Water systems serving Webster, Texas have received 2 violations in the last 5 years, including 1 health-based violation. 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 Webster, 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.

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