update on wastewater reclamation research and development in Los Angeles County

The Sanitation Districts of Los Angeles County have actively conducted over 25 years of research associated with wastewater reclamation and reuse. Projects have included treatment process evaluations for removal of total dissolved solids, nitrogen, phosphate, heavy metals, organics, bacteria and viruses. Additional research has evaluated the health significance of using treated wastewater for replenishment of potable groundwater aquifers. Results of these various research projects are presented along with recommendations by the State of California Scientific Advisory Panel on Groundwater Recharge regarding research needs in the area of potable reuse.