Furthering efforts to improve resilience and protect drinking water supplies threatened by climate change impacts, the San Diego Regional Water Quality Control Board for the first time has authorized the use of advanced treated recycled wastewater to replenish groundwater.
The permit approved by the San Diego Water Board allows Pure Water Oceanside to inject up to 3 mgd of highly treated water from its Advanced Water Purification Facility into the San Luis Rey Hydrologic Unit, where the recycled water will commingle with naturally occurring groundwater. Six months later, the water will be extracted from the aquifer and undergo final treatment at
