1 / 25

DEEP GROUNDWATER DRILLING

DEEP GROUNDWATER DRILLING. CENTRAL TEXAS BY WILLIAM FEATHERGAIL WILSON, PG #21 STRATA GEOLOGICAL SERVICES GSA - 2008. TEXAS HILL COUNTRY. Regional Cross-Section. KERR COUNTY. RESEARCH WELLS (12). 8. 4. 9. 6. 5. 7. 11. 3. 2. 1. RESEARCH WELLS (12).

landon
Download Presentation

DEEP GROUNDWATER DRILLING

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. DEEP GROUNDWATER DRILLING CENTRAL TEXAS BY WILLIAM FEATHERGAIL WILSON, PG #21 STRATA GEOLOGICAL SERVICES GSA - 2008

  2. TEXAS HILL COUNTRY

  3. Regional Cross-Section

  4. KERR COUNTY

  5. RESEARCH WELLS (12) 8 4 9 6 5 7 11 3 2 1

  6. RESEARCH WELLS (12) • Drilled through the entire Cretaceous System • Depths ranges: 610’-1330’ (~ 11,000’) • Lithologic logs – stereo microscope @ 10’ intervals • Geophysical logs • Drilled 12 wells – 8 years – HGCD Conservation district

  7. RESEARCH WELL RESULTS • MAPS • ISOPACH • FACIES • ISOTOPE AGES • FLOW DIRECTIONS • RECHARGE CONCEPTS • CROSS-SECTIONS • ANALYTICAL MODELING • AQUIFER AGE DATES – ISOTOPES • PUMP TESTS • DEMAND –SUPPLY PREDICTIONS

  8. Cretaceous Stratigraphy Fm/Group Members Trinity Period Age 99 Edwards Albian Upper Lower Upper Glen Rose 112 Hensel Bexar Cow Creek Hammett Cretaceous Middle Pearsall Aptian 121 Sligo Neocomian Lower Hosston 144

  9. Kerr Co Geology

  10. HENSEL FACIES TIME SLICE

  11. HENSEL FLOW DIRECTIONS

  12. CROSS-SECTION -SE-NNE

  13. CROSS-SECTION – S-N

  14. CROSS-SECTION – W-E

  15. CROSS-SECTION 5-12

  16. EDWARDS FLOW DIRECTIONS

  17. C-14 Aquifer Age Dates (uncorrected) 1000-40,000 years <10,000 >20,000

  18. % Modern Carbon High Low

  19. RECHARGE & ISOPACH MAP

  20. GROUNDWATER STORAGE The Hammett clay wedge separates the Hensel South from the Hensel North via facies change 11,986 ac ft recoverable sans annual recharge 15,981 ac ft using 20% recovery Mean aquifer thickness

  21. PALEOZOIC SUBCROP

  22. Structural Elements

  23. SUMMARY • REPRESENTS A SNAPSHOT OF DEEP GROUNDWATER DRILLING IN CENTRAL TEXAS • ADDITIONAL PRIVATE AND PUBLIC DEEP DRILLING HAS BEEN CARRIED OUT ACROSS THE TEXAS HILL COUNTRY UTILIZING THE SAME TECHNIQUES • RESEARCH CONTINUES IN COOPERATION WITH WATER DISTRICTS, DEVELOPERS, AND PUBLIC WATER SYSTEMS

  24. SUMMARY • KERR COUNTY DETAILED REPORT (BOOK) BEING PREPARED (~120 PAGES), MAPS, CROSS-SECTIONS, ETC. • RESEARCH WILL BE EXPANDED TO INCORPORATE DEEP GROUNDWATER DRILLING DATA AND INTERPRETATION ACROSS ADJACENT COUNTIES

  25. CONTACT INFORMATION • WILLIAM FEATHERGAIL WILSON, PG #21 • Strata Geological Services • 13505 FM 462 • Bandera (Tarpley), Texas 78003 • E-mail <featherg@hctc.net> • Office – 830-562-3680 • Thank You!

More Related