Tour of w and ww systems 3 15-11

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Click on the following power point presentation for a visual tour of the Yountville water and wastewater systems.

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Tour of w and ww systems 3 15-11

  1. 1. Tour of Water and Wastewater Systems Graham Wadsworth Town of Yountville Public Works Department
  2. 2. Introduction <ul><li>Water System </li></ul><ul><li>Wastewater System </li></ul><ul><li>Expenses </li></ul><ul><li>Revenue </li></ul>
  3. 3. Water System <ul><li>Source </li></ul><ul><li>Treatment </li></ul><ul><li>Transmission </li></ul><ul><li>Distribution </li></ul>
  4. 4. Yountville Veterans Home Napa River Highway 29 Silverado Trail Wineries Rector Watershed Rector Watershed Yountville Lake Berryessa Joint Treatment Plant Recycled Water Users Napa River Napa River Highway 29
  5. 5. Water Sources <ul><li>Rector Reservoir </li></ul><ul><li>Lake Hennessey / Conn Dam </li></ul><ul><li>Emergency Well </li></ul>
  6. 6. Rector Reservoir Dam Silverado Trail
  7. 7. Rector Water Treatment Plant
  8. 8. Rector Dam and Treatment Plant
  9. 9. Water Distribution System <ul><li>Fire Hydrant Flushing Program </li></ul><ul><li>Cross Connection Prevention Program </li></ul><ul><li>Water Meter Reading </li></ul>
  10. 10. Water Distribution System <ul><li>Sampling, Testing and Reporting </li></ul><ul><li>Water Conservation and Rebates </li></ul><ul><li>Replace Water Lines and Meters </li></ul>
  11. 12. Water Pipelines
  12. 13. Fire Hydrant Flushing
  13. 14. Back Flow Prevention Device
  14. 15. Wastewater System <ul><li>Collection </li></ul><ul><li>Treatment </li></ul><ul><li>Disposal </li></ul><ul><li>Recycled Water System </li></ul>
  15. 16. Wastewater Collection System <ul><li>Reduce Inflow of Rainwater and Infiltration of Groundwater </li></ul><ul><li>Sewer System Management Plan </li></ul><ul><li>Maintain and Improve Pump Station </li></ul><ul><li>Replace Sewer Pipes </li></ul>
  16. 18. Smoke Testing
  17. 19. Sewer Manhole Coating
  18. 20. Sewer Line Cleaning
  19. 21. Wastewater Pump Station
  20. 22. Pipe Replacement
  21. 23. Levels of Treatment <ul><li>Primary </li></ul><ul><li>Secondary </li></ul><ul><li>Tertiary </li></ul>
  22. 24. Joint Treatment Plant
  23. 25. Joint Treatment Plant Effluent Pond Primary Secondary Final Chlorine Contact
  24. 26. Control Panel
  25. 27. Primary Sedimentation Tank
  26. 28. Sludge Digester
  27. 29. Primary Trickling Filter
  28. 30. Secondary Sedimentation Tank
  29. 31. Secondary Trickling Filter
  30. 32. Solids Contact Chamber
  31. 33. Final Sedimentation Tank
  32. 34. Fuzzy Filter
  33. 35. Chlorine Contact Chamber
  34. 36. Effluent Pond
  35. 37. Effluent Discharge <ul><li>Napa River during Wet Season </li></ul><ul><li>Recycled Water Users during Dry Season </li></ul><ul><li>Recycled 43% of Effluent in 2004 </li></ul><ul><li>Recycled 83% of Effluent in 2009 </li></ul>
  36. 38. Yountville Veterans Home Napa River Highway 29 Silverado Trail Wineries Rector Watershed Views Looking East
  37. 40. Vintner’s Golf Course Joint Treatment Plant Effluent Pond Sludge Drying Ponds Highway 29
  38. 41. Mondavi Recycled Water Pond
  39. 42. Operating Expenses <ul><li>Purchase of Water </li></ul><ul><li>Salaries and Benefits </li></ul><ul><li>Electricity and Gas </li></ul><ul><li>Contract Services </li></ul><ul><li>Chemicals </li></ul><ul><li>Equipment Maintenance </li></ul>
  40. 43. Capital Improvement Expenses <ul><li>Recycled Water Project </li></ul><ul><li>Improvements to Joint Treatment Plant </li></ul><ul><li>Replace Water and Wastewater Pipes </li></ul><ul><li>Replace Water Meters and Blow Offs </li></ul>
  41. 44. Revenues <ul><li>Water Enterprise Fund </li></ul><ul><li>Wastewater Enterprise Fund </li></ul><ul><li>Veterans Home for Joint Treatment Plant </li></ul><ul><li>Recycled Water Sales </li></ul><ul><li>Developer Impact Fees for Capital Improvements </li></ul>
  42. 45. Conclusion <ul><li>Provide Safe, Clean and Reliable Water </li></ul><ul><li>Minimize Pollution to the Napa River </li></ul><ul><li>Minimize Expenses </li></ul>
  43. 46. Questions and Answers

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