Pollutant Prioritization Project for Water Reuse

The goal of the Pollutant Prioritization Project for Water Reuse is to develop a prioritized list of pollutants of concern from an initial list of over 500 candidate constituents. The list will serve as the basis for OCSD's Enhanced Source Control Program that is designed to protect the Groundwater Replenishment (GWR) System from potentially harmful pollutants that may impact one of Orange County California's most reliable sources of drinking water supply.The Pollutant Prioritization Project will determine unit process removal rates and action levels necessary to ascertain future Source Control restrictions in regards to the GWR System project and to satisfy the California Regional Water Quality Control Board Order. Pollutants identified will be used to implement various control strategies first, at an operational level and second at a source control level. Source control strategies may include voluntary reductions or local limits for point sources and public outreach or product substitution for non-point sources, etc. Methodology and results are presented herein.