IRWD’s DATS (Deep Aquifer Treatment System) facility uses a nanofiltration process to remove color caused by dissolved organics from deep aquifer wells. The concentrate stream from this process is currently disposed of in the sewer at a cost of about $200,000 per year. The Clinic project consists of three preliminary bench-scale screenings of potential treatment options for the recovery of the concentrate. These technologies include magnetic ion exchange, nanofiltration, and ozonation.