San Juan Creek Ocean Outfall

Aliso Creek

  • Year Built: 1978
  • Length: 2.2 Miles off Doheny State Beach
  • Capacity Used Today: 11.3 million gallons per day
  • Water Quality Monitoring Sites: 18
  • Monitoring Frequency: Twice per week in dry season; one per week in wet season
  • Annual Water Quality Samples: Nearly 1,490

Purpose: The San Juan Creek Ocean Outfall discharges highly treated wastewater 2.2 miles off the Orange County coast in accordance to strict state and federal laws. The Regional Water Quality Control Board governs this discharge process. SOCWA holds a National Pollution Discharge Elimination System (NPDES) permit, which must be renewed by application to the Regional Board filed every five years.