Talbert Lake Diversion Project

Talbert Lake Diversion Project

The proposed project is a Santa Ana Regional Water Quality Control Broad-approved Supplemental Environmental Project (SEP) involving the construction of a natural treatment system in the northeastern corner of Central Park in Huntington Beach, on the eastern side of Goldenwest Street. The proposed project would divert up to 3 million gallons per day (mgd) of dry weather flows from the East Garden Grove Wintersburg Channel (EGGWC) into a newly constructed treatment wetlands system for water quality improvement purposes. The constructed wetlands would be located in the northeastern corner of Central Park (between Slater Avenue and Talbert Avenue to the north and south, and Goldenwest Street and Gothard Street to the west and east.) Project components include the construction of a diversion structure such as a rubber dam within the EGGWC to divert dry weather flows either into an existing water line in Goldenwest Street, or the existing storm drain system within Gothard Street, for transport to the newly constructed treatment wetlands within Central Park. These treatment wetlands would consist of three linear wetland features encompassing open water and channel areas and channels through which diverted channel flows would move and be subjected to a series of natural treatment processes improving overall water quality. These improved flows would move downstream into a restored and reconfigured Talbert Lake, which would provide additional water quality refinement and recreational/environmental enhancement benefits. These improved flows could be used for park irrigation purposes, if sufficient water is available, or pass back into Slater Channel under period of higher flow.

Huntington Beach

Orange

California Department of Fish and Wildlife, South Coast Region 5 (CDFW), California Department of Parks and Recreation, California Highway Patrol, Department of Toxic Substances Control, Department of Water Resources, Office of Emergency Services, California, Resources Agency, State Water Resources Control Board, Divison of Financial Assistance, California Native American Heritage Commission (NAHC), California Regional Water Quality Control Board, Santa Ana Region 8 (RWQCB), California Department of Transportation, District 12 (DOT)

California Native American Heritage Commission (NAHC), California Regional Water Quality Control Board, Santa Ana Region 8 (RWQCB), California Department of Transportation, District 12 (DOT)

Water Facilities , Other (Water quality improvement project)

Air Quality, Biological Resources, Cultural Resources, Geology/Soils, Hazards & Hazardous Materials, Transportation