Bodies8,11 Seepage pits 5 feet (1.52m) 5 feet (1.52m) 12 feet (3.66m) Disposal field 5 feet (1.52m) 4 feet4 (1.22m) 5 feet (1.52m) On site domestic water service line 5 feet (1.52m) 5 feet (1.52m) 5 feet (1.52m) Distribution box — 5 feet (1.52m) 5 feet (1.52m) Pressure public water main 10 feet (3.05m) 10 feet (3.05m) 10 feet (3.05m) Private Water Wells8 100 feet (30.5m) 100 feet (30.5m) 150 feet (45.72 m) Monitoring wells12 100 feet (30.5m) 100 feet (30.5m) 100 feet (30.5m) Unstable Land Mass or Areas Subject to Earth Slides13 100 feet (30.5m) 100 feet (30.5m) 100 feet (30.5m) High Water Mark of Reservoir, Lake, or Flowing Water Body, Type I14 400 (122m) 400 (122m) 400 (122m) High Water Mark of Reservoir, Lake, or Flowing Water Body, Type II15 200 (61m) 200 (61m) 200 (61m) Trunk of any tree16 10 feet (3.05m) 10 feet (3.05m) 10 feet (3.05m) Notes: See Table 3-4 for the detailed notes 1-16 regarding horizontal setbacks in this table. The Los Angeles Regional Water Quality Control Board (LARWQCB), the Lahontan Regional Water Quality Control Board (LRWQCB) and the SWRCB acknowledge that the County of Los Angeles, its elected officials, officers, employees, and agents (County) shall not be liable for any harm, loss, injury, death, or other damages arising out of County's administration of the program.
Activity Code or Professional Guide Inspections Monitoring Maintenance & Repairs Permit Required NOWTS Construction Plumbing Code and Professional Guide Site Evaluation for setbacks Leak Test Start up and telemetry test N/A N/A Building and Safety and EH approvals required NOWTS Operation Title 11 and Professional Guide Annual Inspection by a qualified septic technician Telemetry monitoring by service provider. Tier 3 for effluent testing Service contract required. Maintenance schedule as specified by manufacturer Public Health Permit OWTS Construction Plumbing Code and Professional Guide Site evaluation for setbacks N/A N/A Building and Safety and EH approvals required OWTS Operation N/A None None Maintenance, including pumping of sludge every 3-5 years None
Building Additions & Remodels Plumbing Code and Professional Guide Performance inspection required by QC prior to application for building addition or remodel; evaluation procedures specified in Professional Guide. EH conducts inspection of setbacks after submission of application. May involve water sampling, dye testing or other monitoring Maintenance, repair, system upgrade, and designation of future expansion area may be required as per Professional Guide Building and Safety and EH approvals required Point of Sale Inspections N/A Inspection of OWTS conducted by independent maintenance provider or professional in conjunction with sale of a property or re-financing. May involve water sampling, dye testing or other monitoring Maintenance and/or repair/system upgrade work may be or required as a result of inspection findings. N/A Complaint (Abatement) Title 11 Inspections of by EH staff in response to complaints or observed violation(s). May involve water sampling, dye testing or other monitoring Maintenance and/or repair work/system upgrade may be required as a result of inspection findings. N/A