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Land Use and Urban Recharge in the Brushy Creek Watershed

Land Use and Urban Recharge in the Brushy Creek Watershed. Jonathan Snatic. Urban Recharge. Urban Recharge. Leaking water mains and sewers. Infiltration of excess irrigation. Brushy Creek Basin. Land Use 1992. Land Use 2001. Contributing Zone . LCRA- municipal supply. Llano Uplift.

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Land Use and Urban Recharge in the Brushy Creek Watershed

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  1. Land Use and Urban Recharge in the Brushy Creek Watershed Jonathan Snatic

  2. Urban Recharge

  3. Urban Recharge Leaking water mains and sewers Infiltration of excess irrigation

  4. Brushy Creek Basin

  5. Land Use 1992

  6. Land Use 2001

  7. Contributing Zone

  8. LCRA- municipal supply

  9. Llano Uplift

  10. Llano Uplift Llano River Pedernales River

  11. (87Sr/86Sr)MIX = (87Sr/86Sr)A (fA)(SrA/ SrM) + (87Sr/86Sr)B (1-fA) (SrB/SrA)

  12. Brushy Creek Basin Lake Creek Mason Creek

  13. Can determine the urban recharge component to base flow in the Brushy Creek Basin. • Sampling • 2 component mixing model • Is there a correlation between urban recharge and land use in the sampled watersheds? • Delineate sampled watersheds • Compare land use in watersheds

  14. 30m DEM

  15. NHD Flowlines

  16. Flow Accumulation

  17. World Map

  18. Sample Locations- Point Delineation

  19. Watersheds

  20. Land Use

  21. Urban vs. Rural Land Use Urban Rural 900- Undeveloped 160- Large Lot Single Family 910- Agricultural 710- Parks • 100- Single Family Res. • 300- Commercial • 400- Office • 530- Misc. Industrial

  22. Questions?

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