Sun Valley Watershed Management Plan

The Sun Valley Watershed Management Plan (SVWMP) Program Environmental Impact Report (2004 PEIR) was certified by the Los Angeles County Board of Supervisors as governing body of the District on June 29, 2004, and outlined multiple projects including the Park project (previously named the Strathern Pit Multiuse Project) and Drain project, each designed to manage stormwater runoff and reduce flooding. The Addendum to the 2004 PEIR evaluates proposed updates to these two projects and concludes that the two projects did not constitute a substantial change or result in new significant impacts or an increase in the severity of a previously identified impact or substantial new information pursuant to State CEQA Guidelines section 15162. The Park project includes conversion of a 46-acre, non-operating inert construction debris landfill into a constructed wetlands park that would provide flood control, habitat, recreation, and water quality enhancements to the Sun Valley community, including a 21-acre detention pond, 10 acres of wetlands, and 15 acres of recreational space. The Park project was also analyzed in a previously certified 2013 Addendum to the SVWMP EIR The Drain project includes installation of storm drain lines below existing roads in the Sun Valley area. Phases 2 through 4 involve installation of approximately 28,200 linear feet of storm drain lines below existing roads in the Sun Valley area as well as installation of catch basins, connector pipes, and other drainage structures. The Drain project was also analyzed in previously certified Addenda to the SVWMP EIR in 2013 and 2020.