American Ground Water Trust

Barton Springs water quality testing 2002/2003

Edwards Aquifer Authority

Edwards Aquifer Research & Data Center

Edwards Aquifer (personal page)

Groundwater Guardians

National Groundwater Association

The Groundwater Foundation

Hays Trinity Groundwater Conservation District

TX Dept. of Licensing and Regulation: Water Well Drillers and Pump Installers

TX Dept. of Licensing and Regulation: Water Well Drillers and Pump Installers Administrative Rules

TX Dept. of Licensing and Regulation: Well Construction and Plugging Specifications

Texas Groundwater Conservation Districts - Texas Cooperative Extension

Texas Groundwater Conservation Districts - TWDB

Well Owner