Regional Treatment Plant

DSC_1112 RTP 800 x 300

  • Location: Laguna Niguel
  • Total Capacity:
    • Liquid waste: 12 million gallons per day
    • Solid waste: 20 million gallons per day
  • Average Capacity Used Today: 7.3 million gallons per day
  • Recycled Water Production: Up to 7.3 million gallons per day
  • Year Built: 1982

Interesting Facts:

  • The Regional Plant facility produces its own energy to save energy and costs
  • Approximately 90 percent of the power needs are produced on-site from methane gas that is a byproduct of the treatment process
  • SOCWA was awarded approximately $1.8 million in grant funding for on-site energy production
  • Hundreds of students and interested residents tour the facility each year
  • Some of the biosolids from these plants – also known as residual solids – are trucked off-site to a composting facility. Composted biosolids can be land applied to help grow non-food crops such as cotton and alfalfa.

Treatment Processes

  • Screening
  • Grit removal
  • Primary clarification
  • Secondary treatment
  • Secondary clarification
  • Anaerobic digestion
  • Solids dewatering

Address: 29201 La Paz Rd, Laguna Niguel, CA 92677