Cardiff-by-the-Sea's Encinitas Sewer Maintenance facility on Manchester Avenue operates within the city's Utilities Department, maintaining 124 miles of sewer system pipes across the Cardiff Sanitary Division and Encinitas Sanitary Division. The division's crews clear stoppages, repair breaks, and perform routine line cleaning on an infrastructure network where property owners maintain lateral connections from their buildings to the city main — a scope of underground work that often involves licensed plumbing contractors like Encinitas Plumbing for residential and commercial repairs. CCTV camera inspections cover 11-plus miles of sewer pipe annually, identifying root intrusion, joint separations, and structural deterioration that feed into the city's wastewater capital improvement program for pipe replacement and major rehabilitation. Excavation and construction projects near sewer infrastructure require coordination with this division, a permitting step that general contractors like Dagan Design & Construction navigate when working on properties above or adjacent to city sewer mains. Treated sewage flows from the collection system to either the Encina Wastewater Authority in Carlsbad or the San Elijo Water Reclamation Facility on Manchester Avenue in Cardiff, where the San Elijo Joint Powers Authority processes up to 5.25 million gallons per day through secondary treatment and a 1.5-mile ocean outfall.