Collaborative Development of Methods to Set Environmental Flow Needs in Okanagan Streams
Clients: Okanagan Basin Water Board, Okanagan Nation Alliance, and BC Ministry of Forests, Lands, and Natural Resource Operations.
Based on the need to better understand environmental flow needs (EFNs) to inform water allocation decisions, Associated was engaged to lead a collaborative study to develop methods to determine EFNs for streams within the Okanagan Basin. The study involved the development of an EFN-setting approach that uses a desktop assessment appropriate for low risk situations, and a desktop assessment followed by a field-based assessment for higher risk situations. The methods are now being successfully implemented on 19 high priority streams in the Okanagan Basin.