B
82

US Water Score: B

Dickinson, TX 77539

Galveston County · Population served: 30,399 · 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

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GALVESTON COUNTY WCID 1
Surface water · Pop. 30,399
PWSID: TX0840001
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SAN LEON MUD
Surface water · Pop. 11,622
PWSID: TX0840063
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WINDSONG PARK
Groundwater · Pop. 78
PWSID: TX0840046

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
0.6
15 ppb 1 ppb Passed
Copper
2350.0
1300 ppb 300 ppb

PFAS / Forever Chemicals

4 detected Below comparison values

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

CompoundLevelEPA MCLHealth GuidelineStatus
PFPeA157.0 pptNo standardNo federal MCL shown
PFBA30.8 pptNo standard500 pptNo federal MCL shown
PFHxA5.4 pptNo standard400 pptNo federal MCL shown
PFBS3.8 ppt2000 ppt100 pptBelow comparison value

Violation History (Last 5 Years)

18Total (5yr)
2Health-Based
4Major

Water Quality Summary

Understanding Your Water in Dickinson

Tap water quality in Dickinson, Texas (77539) receives an overall grade of B (Good) with a score of 82 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is roughly in line with the Texas state average of 80. The area is served by 3 water systems providing water to approximately 30,399 people, using groundwater and surface water sources. PFAS testing detected 4 compounds, all below the EPA final MCL values used for comparison. Over the past 5 years, water systems here have accumulated 18 violations, including 2 health-based violations.

Your Score 82/100 B
vs State 2 pts above Texas avg (80)
vs National 7 pts above national avg (75)

What a Grade B Means

A score of 82/100 means Dickinson, 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.

Groundwater: drawn from underground aquifers via wells
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.

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Copper in Your Water

Copper can leach into water from copper plumbing, especially in newer homes or when water is acidic.

Health Effects

Short-term exposure above 1,300 ppb can cause gastrointestinal distress. Long-term exposure may cause liver or kidney damage. People with Wilson's disease are especially vulnerable.

Common Sources

Copper pipes, fittings, and faucets are the most common source. Corrosive (low-pH) water accelerates copper leaching.

What You Can Do

If copper levels are elevated, flush pipes by running water for 15–30 seconds before use. Reverse osmosis and distillation systems effectively remove copper.

Common Questions

Frequently Asked Questions

Based on public water-system records, Dickinson, Texas receives an internal US Water Score grade of B (Good) with a score of 82/100. 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 77539 is served by 3 water systems using groundwater, surface water sources, providing water to approximately 30,399 people. Multiple source types mean your water may come from a blend of surface and underground sources.

Lead levels in Dickinson, Texas are 0.6 ppb, which is at or below the health guideline of 1 ppb. This is a positive result, though periodic testing is still recommended.

4 PFAS compounds were detected in water serving Dickinson, Texas, with reported values below the EPA final MCL values used by this site. This comparison is informational: federal compliance timelines and the status of some PFAS standards are still evolving. Activated carbon or reverse osmosis filters can reduce some PFAS when appropriately certified and maintained.

Water systems serving Dickinson, Texas have received 18 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 (PFAS, copper), residents in Dickinson, 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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