Texas Groundwater Summit 2015

1. Texas Groundwater Summit
The Role of Modeled Available Groundwater in
Local Regulation and State Planning
Steve Box, Executive Director
Environmental Stewardship
August 27, 2015

2. Precision & Accuracy

3. 2060 MAG from 2012 Management Plan
Precision or Accuracy?
(MAG in acre-feet/year)
Lost Pines GCD
• Simsboro: 37,249
• Total: 58,888
• +/- 10%
• Simsboro: 33,524 - 40,974
• Total: 52,999 - 64,777
Post Oak Savannah GCD
• Simsboro: 48,501
• Total: 106,605
• +/- 10%
• Simsboro: 43,651 – 53,351
• Total: 95,944 – 117,266
What if accuracy is +/- 50%, or 75%, or more?

4. Steve Box, Executive Director
Environmental Stewardship
Steve.Box@att.net
512-300-6609
www.environstewardship.org