Harris-Galveston Subsidence District

Public Policy OfficesTexas, United States11-50 Employees

The Harris-Galveston Subsidence District (HGSD) was established by the Texas Legislature in 1975 to protect people and property in Harris and Galveston counties from subsidence caused by groundwater withdrawal. It pursues its mission through regulatory planning, advanced science and research, regional collaboration, and water conservation programs. The district is based in Friendswood, Texas, and operates as a public policy organization focused on groundwater management.

Its work is aimed at supporting growth along the Gulf Coast by protecting groundwater resources through reasonable, science-based regulations and a pathway toward a sustainable water future free from subsidence impacts. Recent recognition includes the 2026 Watermark Award in Communication Excellence and an Outstanding Safety Record in Liability, along with a prior Sustained Excellence Award for water conservation and WaterSense promotion. The district also engages the public through processes like a public hearing for the 2024 Annual Groundwater Report in 2025 and has partnered with entities such as WaterSense and the City of Houston to share water-saving information.

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