States › Texas › Galveston County

Galveston County, TX Water Quality

Water quality data for 15 public water systems serving Galveston County, Texas — based on EPA SDWIS enforcement records, lead testing results, and health-based violation history.

📅 2026 Report 🔄 Data updated 2026 Q2 📍 15 water systems · 16 cities
✅
Excellent — All Systems Performing Well

Water quality across the county is outstanding with minimal violations and very low lead levels.

A

Galveston County Earns a A

Galveston County: 16 communities across 15 water systems. 93.8% have no open violations.

  • Median lead where detected: 1.60 ppb
  • 8 communities with a lead detection, 8 reporting none detected
  • 0 communities with PFAS above the federal limit
  • 1 with significant inspection deficiencies
  • 93.8% of communities have no open violations
1.6 ppb
Median Lead Level
County-wide, 90th percentile
15
Water Systems
Active CWS & NTNCWS
93%
Violation-Free
No active violations on record
How we grade counties: MyWaterIQ uses EPA SDWIS enforcement data — actual MCL violations and lead test results — not the aspirational MCLG targets used by some sites. A grade reflects real compliance history, not theoretical risk. Learn more →

Cities by Water Quality

⭐ Best Performing
  • League City
    3.00 ppb
    No federal limits exceeded on record
    A
  • Galveston
    3.13 ppb
    No federal limits exceeded on record
    A
  • Friendswood
    4.61 ppb
    No federal limits exceeded on record
    A
  • Dickinson
    Not detected
    No federal limits exceeded on record
    A
  • Bacliff
    Not detected
    No federal limits exceeded on record
    B
⚠ Needs Attention
  • Hitchcock
    0.78 ppb
    Copper above the 1,300 ppb action level
    D
  • La Marque
    0.58 ppb
    1 significant inspection deficiency
    A
  • Texas City
    0.60 ppb
    1 health-based violation since 2015
    A
  • Bayou Vista
    Not detected
    1 health-based violation since 2015
    B
  • Jamaica Beach
    Not detected
    1 health-based violation since 2015
    B
County Lead Level — Median 1.6 ppb
Based on most recent 90th percentile lead tests across all reporting systems
0 ppb5 ppb10 ppb15 ppb
County median: 1.6 ppb — 10.7% of the federal action level
Systems by Lead Level
Under 5 ppb
8
No Data
8

All Cities in Galveston County

League City 3.00 ppb A
Galveston 3.13 ppb A
Texas City 0.60 ppb A
Friendswood 4.61 ppb A
Dickinson Not detected A
La Marque 0.58 ppb A
Bacliff Not detected B
Hitchcock 0.78 ppb D
San Leon Not detected A
Santa Fe Not detected A
Bolivar Peninsula Not detected A
Bayou Vista Not detected B
Kemah 1.60 ppb A
Jamaica Beach Not detected B
Tiki Island Not detected B
Clear Lake Shores 1.60 ppb A
Showing 16 cities
No active violations Active violations

About Galveston County Drinking Water

Galveston County is served by 15 water systems covering 16 communities. 94% have no open violations.

Of the communities reporting lead results, 8 recorded a detection, with a median of 1.60 ppb — 11% of the federal action level. 8 reported none detected, which means below the laboratory limit rather than an absence of lead.

No community here has PFAS above the federal limit on record. State inspectors recorded significant deficiencies at 1 of them.

Frequently Asked Questions

Is Galveston County tap water safe to drink?▼
94% of communities have no open violation. No community has PFAS above the federal limit on record.
What is the lead level in Galveston County?▼
Among communities with a detection the median is 1.60 ppb, 11% of the 15 ppb action level. 8 reported none detected and 0 reported no result.
How many water systems serve Galveston County?▼
15 community water systems serve 16 communities here.
← Back to Texas water quality overview