Summary
The Water Research Foundation (WRF), in partnership with the California State Water Resources Control Board (SWB), is soliciting research proposals for Project 5404 to develop a framework for managing Reverse Osmosis Concentrate (ROC) discharges to California receiving bodies. The $100,000 research project aims to identify viable ROC management strategies and summarize approaches such as source control or pre-treatment that minimize contaminant concentrations in ROC discharge. Proposals must be submitted through the WRF portal by 3:00 PM Mountain Time on September 2, 2026, and the program is open only to WRF member organizations such as the City of San Diego, Metropolitan Water District of Southern California, and Valley Water.