Gobernadora Multipurpose Basin Project: Integrated Stormwater Management
Through its funding programs, the state requires agencies to integrate flood and water resources management. Santa Margarita Water District (SMWD)'s Gobernadora Multipurpose Basin Project (Project) in Orange County, CA demonstrates how integrated stormwater planning can result in integrated funding with multiple benefits. The Project will manage runoff and storm flows, improve water quality, reclaim water supply for non-potable purposes, and establish a recreational trail. Two basins will be constructed adjacent to Canada Gobernadora Creek on approximately 32 acres. The upper basin will be subdivided into a series of smaller, vegetated wetland cells to treat urban runoff and low flows. The lower basin will capture and store larger storm flows. The Project will protect the downstream Gobernadora Ecological Restoration Area (GERA) by reducing erosion and sedimentation.
This presentation will highlight this $20 million Project as a supreme example of the state’s goal to integrate project funding, planning, and implementation. In 2005, the Project was included in the South Orange County Integrated Regional Watershed Management (IRWM) Plan and awarded $2.5 million in Prop 50 funding. In 2012, an additional $5million was recommended for funding by Prop 1E. The Project is a result of partnerships with Rancho Mission Viejo, LLC (RMV), the County of Orange (OC Watersheds), and Orange County Parks (OC Parks), among others. Local funds were provided by the stakeholders for the following components: RMV-land, Orange County Parks-regional bridge and trails, and SMWD’s General fund and Community Facilities District bond.
The presenter will describe the multi-faceted project and the benefits of integrated planning. The intent is to share this success story as an example of true integrated stormwater management.