B
75

Good Water Quality

Humble, TX 77396

Harris County · Population served: 3,023,383 · Data updated March 2026

Water Systems Serving This Area

🏔
CITY OF HOUSTON
Surface water · Pop. 2,970,543
PWSID: TX1010013
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CITY OF HUMBLE
Surface water · Pop. 15,616
PWSID: TX1010014
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HARRIS COUNTY MUD 49
Surface water · Pop. 10,893
PWSID: TX1011462
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HARRIS COUNTY MUD 278
Surface water · Pop. 10,584
PWSID: TX1012835
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HARRIS COUNTY WCID 96
Groundwater · Pop. 10,530
PWSID: TX1013175

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
5.6
15 ppb 1 ppb Warning

PFAS / Forever Chemicals

17 detected All below limits
CompoundLevelEPA MCLHealth GuidelineStatus
6:2 FTS42.6 pptNo standardUnregulated
PFBA10.6 pptNo standard500 pptUnregulated
PFPeA8.8 pptNo standardUnregulated
PFPeA6.7 pptNo standardUnregulated
PFBA6.5 pptNo standard500 pptUnregulated
PFBA6.4 pptNo standard500 pptUnregulated
PFBA6.0 pptNo standard500 pptUnregulated
PFHxA5.9 pptNo standard400 pptUnregulated

Violation History (Last 5 Years)

2Total (5yr)
2Health-Based
0Major

Water Quality Summary

Understanding Your Water in Humble

Tap water quality in Humble, Texas (77396) receives an overall grade of B (Good) with a score of 75 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 6 points above the Texas state average of 68. The area is served by 6 water systems providing water to approximately 3,023,383 people, using surface water and groundwater sources. Testing has found elevated levels of Lead that warrant attention. PFAS testing detected 17 compounds, all currently below EPA limits. Over the past 5 years, water systems here have accumulated 2 violations, including 2 health-based violations.

Your Score 75/100 B
vs State 6 pts above Texas avg (68)
vs National Equal to national average (75)

What a Grade B Means

A score of 75/100 means the water in Humble, TX is generally good and meets EPA standards, with only minor areas of concern. There may be low levels of detectable contaminants or a small number of non-critical violations. Most residents can feel comfortable with their tap water quality, though basic filtration can provide an extra layer of protection.

Surface water: sourced from rivers, lakes, or reservoirs
Groundwater: drawn from underground aquifers via wells

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 EPA data, tap water in Humble, Texas receives a grade of B (Good) with a score of 75/100. This indicates the water meets federal standards and has relatively few concerns. However, individual homes may still have localized issues such as lead from old plumbing.

ZIP code 77396 is served by 6 water systems using surface water, groundwater sources, providing water to approximately 3,023,383 people. Multiple source types mean your water may come from a blend of surface and underground sources.

Lead was detected at 5.6 ppb in Humble, 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.

17 PFAS compounds were detected in water serving Humble, Texas, but all are currently below EPA limits. While levels are within regulatory standards, some health organizations recommend minimizing any PFAS exposure. Activated carbon or reverse osmosis filters can reduce PFAS levels.

Water systems serving Humble, Texas have received 2 violations in the last 5 years, including 2 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 Humble, 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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