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GCWA Office Locations

Administration Building

  • Hours of Operation: Monday-Thursday 8:00 AM – 4:30 PM, Friday By Appointment Only
  • Physical and Postal Address: 4243 Emmett F. Lowry Expressway, Texas City, Texas 77591
  • Telephone: 409.935.2438 (Office Hours)
  • Emergency Telephone: 409.797.4917 or 409.682.0883 (After Hours)

Thomas S. Mackey Water Treatment Plant 

  • Hours of Operation: Office Monday - Friday 7:30 AM – 4:00 PM, Operations 24-7
  • Physical Address: 4001 5th Avenue North, Texas City, Texas 77591
  • Postal Address:  4243 Emmett F Lowry Expressway, Texas City, Texas 77591
  • Telephone: 409.935.2438 (Office Hours)
  • Emergency Telephone: 409.797.4917 or 409.682.0883 (After Hours)

David A. Sauer Operations Center 

  • Hours of Operation: Monday - Thursday 6:30 AM – 5:00 PM
  • Physical Address: 4351 East Highway 6, Alvin, Texas 77511
  • Postal Address:  4243 Emmett F Lowry Expressway, Texas City, Texas 77591
  • Telephone: 409.935.2438 (Office Hours)
  • Emergency Telephone: 409.797.4917 or 409.682.0883 (After Hours)