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Dickinson Bayou Supporting Data #2

Dickinson Bayou Supporting Data #2. CIVE 4312 Spring 2010. Contact Recreation Standards. Dickinson Bayou Map. Dickinson Bayou , Segments. Segment 1103A. Segment 1103B. Segment 1103D. Segment 1103C. Segment 1103. Segment 1104. Summary of Land Use in Watershed.

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Dickinson Bayou Supporting Data #2

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  1. Dickinson Bayou Supporting Data #2 CIVE 4312 Spring 2010

  2. Contact Recreation Standards

  3. Dickinson Bayou Map

  4. Dickinson Bayou, Segments Segment 1103A Segment 1103B Segment 1103D Segment 1103C Segment 1103 Segment 1104

  5. Summary of Land Use in Watershed Data source: HGAC, 2002

  6. Land Use Map Data source: HGAC, 2002

  7. Exceedances of the Single Sample Standard * Data from GCHD could not be fully validated because of insufficient QA/QC data Criteria used for TCEQ’s WQ assessment:: 1104 = E. coli 1103 = Enterococci Blank histograms indicate compliance with the Geometric Mean Standard

  8. Exceedances of the Geometric Mean Standard * Data from GCHD could not be fully validated because of insufficient QA/QC data Criteria used for TCEQ’s WQ assessment:: 1104 = E. coli 1103 = Enterococci Blank histograms indicate compliance with the Geometric Mean Standard

  9. Enterococci vs. Time, Upper Region Station Geometric mean of data = 272 MPN/dL % Exceedance of single sample standard (394 MPN/dL) = 34%

  10. Enterococci vs. Time, Mid Region Station Geometric mean of data = 128 MPN/dL % Exceedance of single sample standard (89 MPN/dL) = 61%

  11. Enterococci vs. Time, Lower Region Station Geometric mean of data = 272 MPN/dL % Exceedance of single sample standard (89 MPN/dL) = 34%

  12. E. Coli Geometric Mean Concentrations Segment ID 1104 * Data from GCHD could not be fully validated because of insufficient QA/QC data

  13. E. Coli Concentrations at TCEQ Stations LEGEND E. coli Geometric Mean

  14. Enterococci Geometric Mean Concentrations * Data from GCHD could not be fully validated because of insufficient QA/QC data

  15. Enterococci Concentrations at TCEQ Stations LEGEND Enterococci Geometric Mean

  16. Outfalls Analyzed by Galveston County Health District * Data from GCHD could not be fully validated because of insufficient QA/QC data

  17. Summary Outfall Data from GCHD * Data from GCHD could not be fully validated because of insufficient QA/QC data

  18. GCHD Sampling Locations LEGEND E. coli Geometric Mean * Data from GCHD could not be fully validated because of insufficient QA/QC data

  19. Surface Temperature and Bacteria

  20. Surface Salinity and Bacteria

  21. NPDES Discharge Information

  22. WWTP Map, Permitted Flows LEGEND

  23. Eagle Point Tide Elevations

  24. Tributary Stations 2008 Data Collection 20477 20475 20476 Sampling Locations

  25. Tributary Station Data 2008 n = 7 dL – deciliter, DO – dissolved oxygen, L – Liter, mg- milligrams, MPN – most probable number, ppt – part per thousand

  26. Tributary Wet/Dry Data 2008 dL – deciliter, L – Liter, mg- milligrams, MPN – most probable number

  27. Bayou Wildlife Park Bayou Wildlife Park

  28. Wildlife Park Characteristics • 81-acre wildlife park with more 35,000 visitors/year houses 400 exotic animals • Most on-site drainage controlled by small ponds, vegetated drainage swales, and berms around some pastures • Some denuded areas present near tributary running through facility and near Dickinson Bayou

  29. Data Near Wildlife Park 2008 dL – deciliter, DO – dissolved oxygen, L – Liter, mg- milligrams, MPN – most probable number, ppt – part per thousand

  30. Wildlife Park Wet/Dry Data 2008 (MPN/dL) Station 11466 n = 3 n = 7 Station 11467 (MPN/dL) n = 3,1 n = 7, 2

  31. WWTP Locations

  32. WWTP Data 2008 dL – deciliter, L – Liter, mg- milligrams, MPN – most probable number

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