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  • Delta Diablo operates 24 hours a day, seven days a week, 365 days per year.
  • Serves over 200,000 residents in Antioch, Bay Point, and Pittsburg (wastewater treatment).
  • 54 square mile service area.
  • Average daily wastewater flow is 12.4 million gallons.
  • 2016 "Platinum 13" National Association of Clean Water Agencies Award, recognizing 13 years of perfect compliance of the National Pollutant Discharge Elimination System (NPDES).
  • 2016 Governor’s Environmental and Economic Leadership Award (GEELA).
  • 2016, 2012 and 2008 Best Medium-Sized Wastewater Treatment Plant in California Award from the California Water Environment Association. 
  • 2016 Community Engagement & Outreach Person of the Year Award from California Water Environment Association. 
  • 2016 East Bay Innovation Award received from the East Bay Economic Development Alliance.
  • Beneficial reuse of over 90% of biosolids.
  • Operates one of the largest industrial recycled water plants in California, providing 6.4 million gallons a day of recycled water for industrial and irrigation uses.
  • Performs street sweeping functions.
  • Conducts storm water inspections.
  • Undertakes Pretreatment/Pollution Prevention Program for industrial customers.
  • Manages the Delta Household Hazardous Waste Collection Facility for 338,158 East Contra Costa County residents.
  •  Actively exploring new renewable energy sources: biosolids-to-energy, solar, grease-to-energy, and food-to-energy. 
  • Lead agency for four regional Coalitions:Western Recycled Water Coalition (22 agencies)East County Household Hazardous Waste (6 agencies)East County Integrated Regional Water Management (11 agencies).