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ELLIS CREEK WATER RECYCLING FACILITY PETALUMA, CA

ELLIS CREEK WATER RECYCLING FACILITY PETALUMA, CA. North Bay Watershed Association Conference April 9, 2010. Ellis Creek Water Recycling Facility. Headworks. Oxidation Ditches. Secondary Clarifiers. Ellis Creek Water Recycling Facility. Wetlands.

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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 Conference April 9, 2010 CouncilUpdateJan702pet104i2-6069.ppt

  2. Ellis Creek Water Recycling Facility

  3. Headworks

  4. Oxidation Ditches

  5. Secondary Clarifiers

  6. Ellis Creek Water Recycling Facility

  7. Wetlands • Treated water is sent to Petaluma River or recycled for irrigation

  8. Treatment/Habitat/Recreation

  9. Ellis Creek Water Recycling Facility

  10. Tertiary Treatment Sand Filtration Ultraviolet Disinfection

  11. Petaluma’s Recycled Water Program • Began 1984 (discharge prohibition May 1 – Oct. 20) • Two types of water: • Secondary • Tertiary

  12. Secondary Recycled Water • Agricultural irrigation • 500 acres irrigated pasture

  13. Secondary Recycled Water • 35 acre vineyard Two 18 hole golf courses

  14. Tertiary Recycled Water – Fire Protection Sand Filtration • Reserve 500,000 gallons in storage for fire protection

  15. Tertiary Recycled Water – Plant Process Water

  16. Tertiary Recycled Water – Landscape Irrigation • (…and toilet flushing, construction water…)

  17. Summary Use of Recycled Water • Agricultural irrigation = 470 mg/year • Urban irrigation = 260 mg/year • On-site use = 130 mg/year • Total use = 860 mg/year (50% of wastewater treated) • Potable water savings • 390 mg/year • Equivalent to 3,500 homes

  18. Future Use of Recycled Water

  19. Future Use of Recycled Water • High School Fields • Parks

  20. Questions

  21. Need for Ellis Creek Water Recycling 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

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