Aspen prepared a Biological Resources Technical Report and Preliminary Jurisdictional Waters and Wetlands Delineation Report for the proposed project. The project site is located within the foothills northeast of the City of Burbank, within Los Angeles County.

Aspen is supporting the County with the environmental review and permitting of this sediment removal project. The County anticipates removing approximately 2.5 million cubic yards of sediment from Cogswell Reservoir, which is in the south-central portion of the Angeles National Forest along the West Fork of the San Gabriel River (WFSGR)

Aspen prepared emergency work permits for the project, which involved emergency repairs to four flood control structures in and adjacent to the Triunfo Canyon Open Space Area, near the city of Westlake California, northwest Los Angeles County.

Aspen is preparing an initial site-specific environmental analysis following the current State CEQA Guidelines Appendix G Checklist to determine if an Addendum to the 2015 Los Angeles County Flood Control District Enhanced Watershed Management Programs (EWMP) Final Environmental Impact Report (Program EIR) is the appropriate CEQA document for the Alondra Park Multi-benefit Stormwater Capture Project.

Aspen prepared an Addendum to the 2015 Los Angeles County Flood Control District Enhanced Watershed Management Programs Final Environmental Impact Report (Program EIR).