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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

ELLIS CREEK WATER RECYCLING FACILITY PETALUMA, CA

North Bay Watershed Association Conference

April 9, 2010

CouncilUpdateJan702pet104i2-6069.ppt

wetlands
Wetlands
  • Treated water is sent to Petaluma River or recycled for irrigation
tertiary treatment
Tertiary Treatment

Sand Filtration

Ultraviolet Disinfection

petaluma s recycled water program
Petaluma’s Recycled Water Program
  • Began 1984 (discharge prohibition May 1 – Oct. 20)
  • Two types of water:
    • Secondary
    • Tertiary
secondary recycled water
Secondary Recycled Water
  • Agricultural irrigation
    • 500 acres irrigated pasture
secondary recycled water1
Secondary Recycled Water
  • 35 acre vineyard

Two 18 hole golf courses

tertiary recycled water fire protection
Tertiary Recycled Water – Fire Protection

Sand Filtration

  • Reserve 500,000 gallons in storage for fire protection
tertiary recycled water landscape irrigation
Tertiary Recycled Water – Landscape Irrigation
  • (…and toilet flushing, construction water…)
summary use of recycled water
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
future use of recycled water1
Future Use of Recycled Water
  • High School Fields
  • Parks
need for ellis creek water recycling facility
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