This document provides information about the Vista Ridge Panel groundwater project in Texas, including: 1) A brief history of water production permits in the area dating back to 2000 and being transferred between different entities over time, culminating in a 2015 permit transfer to Abengoa-Vista Ridge. 2) Details of the current 50,993 acre-foot per year production permit held by Abengoa-Vista Ridge, which is drawn from the Simsboro and Carrizo aquifers, is effective until 2044, and includes restrictions and requirements to ensure sustainable production. 3) An overview of the POSGCD's management tools and strategies to regulate groundwater production and achieve management goals

1. Vista Ridge Panel
Texas alliance of groundwater districts
2015 Groundwater Summit
August 25, 2015
Gary Westbrook
POSGCD General Manager
Office: 512-455-9900
Cell: 979-571-5761
Email: gwestbrook@posgcd.org
Website: www.posgcd.org

2. history
• 2000- Estimated that 35,000 + Acres leased (Rockdale Reporter)
• 2001 POSGCD Created
• 2004 POSGCD Adopts Management Plan and Rules
• 2004- Layne Water Development of Texas Production &
Transport Permits approved for 15,488 Acre Feet/Year
• 2005- LWDT amends permits to 30,993 AF
• 2007- Blue Water Systems purchases rights to permits and
leases
• 2009- BWS amends permits to 70,993 AF
• 2014- BWS splits permits into 20,000 AF to serve I-130 area,
50,993 AF to BWS-Vista Ridge regional project
• 2015- BWS-VR permit transferred to Abengoa-Vista Ridge

3. Permit specifics
• Production permitted from Simsboro and Carrizo aquifers in
Burleson County (GMA 12) based on correlative rights
approach (currently 2 AF/Acre/Year Max Production)
• Multiple GAM runs and POSGCD Management Strategies
evaluated at each application
• 30 Yr. Transport permit, 40 Yr. production permit
– Effective date of September 14, 2004
– Contingent on water availability based on aquifer conditions
– 5 Year Reviews
– Permits adjustable
– Additional Restrictions and Requirements
– Risks of availability born by permittee
• Advanced POSGCD Monitoring Network

4. Carrizo-Wilcox Aquifer

5. Central Carrizo-Wilcox Area

6. Established tools in place to achieve management
goals
• Well Spacing
• Contiguous Acreage requirements
• Management Zones
• Production per acre limits (currently 2 Acre Feet/Acre/Yr)
• Total permitted
• Permit requirements
• Five year reviews
• DFC Process (GMA and District)
• Thresholds (Section 16 of Rules) and Monitoring
• Improvement of Groundwater Modeling Tools

7. Shallow Deep
Hooper 8 0
Simsboro 13 20
Calvert Bluff 5 0
Carrizo 4 4
Queen City 5 6
Sparta 0 10
Yegua-Jackson N/A 3
Brazos River Alluvium 7 N/A
Management Zone
Aquifer
Posgcd CURRENT MONITOR WELL COUNT

8. POSGCD Monitoring Locations for Wilcox Aquifer