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ELLIS CREEK WATER RECYCLING FACILITY, PETALUMA, CA

ELLIS CREEK WATER RECYCLING FACILITY, PETALUMA, CA. North Bay Watershed Association December 7, 2007. Existing Wastewater Treatment Facility. Two treatment plants 950 Hopper Street First built 1938 Preliminary, Primary, Secondary 4400 Lakeville Highway Built 1972 Secondary, Disinfection

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ELLIS CREEK WATER RECYCLING FACILITY, PETALUMA, CA

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  1. ELLIS CREEK WATER RECYCLING FACILITY, PETALUMA, CA North Bay Watershed Association December 7, 2007 CouncilUpdateJan702pet104i2-6069.ppt

  2. Existing Wastewater Treatment Facility • Two treatment plants • 950 Hopper Street • First built 1938 • Preliminary, Primary, Secondary • 4400 Lakeville Highway • Built 1972 • Secondary, Disinfection • Capacity ADWF = 5.2 mgd • Current flow = 4.5 mgd (86%)

  3. Ox. Ponds 36” Force Main Hopper Street 3 Pet600xi1

  4. Hopper Street WWTP Trickling Filter (1937) Trickling Filter (1953) Sedimentation Tank (1937) Pet600xi1

  5. Recycled Water • Treated water released to Petaluma River November – April • Recycle May – October • 2 golf courses, vineyard, 700 acres agricultural land • Recycle 700 mg/year (35% of influent)

  6. Need for New Facility • Increase capacity to 6.7 mgd • Meet increasingly strict regulatory requirements • Improve reliability • Produce tertiary recycled water • Irrigate areas dependent on potable water • Locally controlled water supply

  7. Existing Lakeville Site

  8. Environmental Features Farmhouse and Outbuildings Non-Tidal Portion, Potential for CRLF Cypress Entrance Rookery Tree Ellis Creek Riparian Corridor Trees Between “Mouse Head” and “Mouse Body” Ponds-Potential for Nesting Raptors Pond 8 Pond 10 Pond 9 Salt Marsh Harvest Mouse, Mud Flats, Rail Habitat and Wetlands Exclusion Clapper Rail Habitat

  9. Farmhouse

  10. Jurisdictional Wetlands

  11. Design Flow Schematic

  12. Wetlands Flow Schematic De Cl2 AG Reuse Cl2 Cl2 From Pond 7 River Discharge Pond 10 Treatment Wetlands Pond 9 Treatment Wetlands Chlorine Contact (during reuse periods) Polishing Wetland Cell A Polishing Wetland Cell B Polishing Wetland Cell C Note: Wetlands are treatment units, not waters of the state

  13. Overall Site Plan

  14. WRF Site Plan

  15. Overall Landscape Plan

  16. Site - Trails

  17. Landscaping as Art

  18. WetlandCell D

  19. Construction Costs

  20. Funding • Line of credit – jump start project • State Revolving Fund loan - $125 million (program was dormant for 2 years!) • State Coastal Conservancy - $2 million • Sonoma County Agricultural Preservation & Open Space District - $2 million

  21. Utility Investment Program • January ’07 Council adopted 5-year investment program for water & wastewater utility • Rates are competitive with other Sonoma County communities

  22. Outreach • Notices to all property owners & utility customers • Hotline for rate questions • 4 public meetings • Advertisement in local newspaper • Mailer to all customers

  23. Construction Update • Contractor NTP October 2005 (Corps permit rec’d day before) • Start Up Scheduled September 2008 • Completion June 2009

  24. Construction Team • Engineer – Carollo Engineers • Construction Manager – The Covello Group • Environmental – ESA • Programming – ArcSine Engineering • Contractor – Kiewit Pacific

  25. Overall Site - October 2007

  26. Operations, Lab, Maintenance and Administration Building • LEED Silver Rating • Daylighting • Sun Shading

  27. Operations, Lab, Maintenance and Administration Building

  28. Administration Building – Green Roof

  29. Headworks-Oxidation Ditch- Secondary Clarifiers-Solids Handling

  30. Oxidation Ditch

  31. Secondary Clarifier

  32. Tertiary Treatment / Administration

  33. Tertiary Treatment / UV Disinfection

  34. Recycled Water Reservoir

  35. Architectural Features – Filter Support Building

  36. Architectural Features – Main Electrical Building

  37. Polishing Wetlands

  38. Polishing Wetlands

  39. Polishing Wetland Cell B

  40. Ellis Creek Marsh / Wildlife Sanctuary

  41. Shollenberger Trail

  42. Questions

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