D
40

Poor Water Quality

Baytown, TX 77521

Harris County · Population served: 111,348 · Data updated March 2026

Water Systems Serving This Area

🌊
CITY OF MONT BELVIEU
Groundwater · Pop. 12,864
PWSID: TX0360017
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CITY OF BAYTOWN
Surface water · Pop. 86,004
PWSID: TX1010003
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HARRIS COUNTY FWSD 27
Surface water · Pop. 2,190
PWSID: TX1010261
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LAKE MUD
Surface water · Pop. 6,048
PWSID: TX1011741
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BARKALOO HOMEOWNERS ASSOCIATION
Groundwater · Pop. 42
PWSID: TX1012240

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
4.7
15 ppb 1 ppb Warning

PFAS / Forever Chemicals

15 detected 1 above EPA limits
CompoundLevelEPA MCLHealth GuidelineStatus
PFBA14.6 pptNo standard500 pptUnregulated
PFPeA10.2 pptNo standardUnregulated
PFHxA9.8 pptNo standard400 pptUnregulated
PFBA7.3 pptNo standard500 pptUnregulated
PFBA7.2 pptNo standard500 pptUnregulated
PFOS6.0 ppt4 ppt4 pptExceeded
PFBS5.7 ppt2000 ppt100 pptBelow limit
PFHxS5.1 ppt10 ppt10 pptBelow limit

Violation History (Last 5 Years)

78Total (5yr)
11Health-Based
56Major

Water Quality Summary

Understanding Your Water in Baytown

Tap water quality in Baytown, Texas (77521) receives an overall grade of D (Poor) with a score of 40 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 28 points below the Texas state average of 68. Compared to the national average (75), this area scores significantly lower. The area is served by 6 water systems providing water to approximately 111,348 people, using surface water and groundwater sources. Testing has found elevated levels of Lead that warrant attention. Notably, 1 PFAS compound exceeds EPA limits — a significant concern given the persistent nature of these chemicals. Over the past 5 years, water systems here have accumulated 78 violations, including 11 health-based violations.

Your Score 40/100 D
vs State 28 pts below Texas avg (68)
vs National 35 pts below national avg (75)

What a Grade D Means

A score of 40/100 signals poor water quality in Baytown, TX. Significant issues have been identified, which may include multiple violations, contaminant levels near or above regulatory limits, or PFAS contamination. We recommend reviewing the detailed contaminant data below, considering a certified water filter, and checking your utility's Consumer Confidence Report for the latest information.

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

Tap water in Baytown, Texas receives a grade of D (Poor) with a score of 40/100. 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 77521 is served by 6 water systems using surface water, groundwater sources, providing water to approximately 111,348 people. Multiple source types mean your water may come from a blend of surface and underground sources.

Lead was detected at 4.7 ppb in Baytown, 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 — 15 PFAS compounds were detected in water serving Baytown, Texas, and 1 exceeds 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 Baytown, Texas have received 78 violations in the last 5 years, including 11 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 Baytown, 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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