Penmar Water Quality Improvement Project

Penmar Water Quality Improvement Project

The City of Los Angeles is proposing to construct a stormwater diversion structures at the Rose Avenue storm drain, primary and secondary pump station systems, a pretreatment system to screen trash, sediment, oil and grease; an underground detention reservoir, and three force mains for flow conveyance. As sewer capacity allows, a portion of the flow, including dry weather flow, would be diverted to the sanitary sewer and ultimately to the Hyperion Treatment Plant. Another portion of the wet weather flow would be diverted to the underground reservoir where it would be held for ~72 hrs after a storm event passes and then discharged at a controlled rate to the sanitary sewer. The project also includes minor sanitary sewer upgrades southwest or Penmar Recreation Center. Phase II of the project would provide further treatment for beneficial use for landscape irrigation at Penmar Golf Course, Penmar Recreation Center and/or Marine Park.

Los Angeles, Los Angeles, City of

Los Angeles

California Department of Fish and Wildlife, South Coast Region 5 (CDFW), California Department of Parks and Recreation, California Department of Transportation, District 7 (DOT), California Highway Patrol, California Native American Heritage Commission (NAHC), California Regional Water Quality Control Board, Los Angeles Region 4 (RWQCB), Caltrans, Division of Aeronautics, Department of Toxic Substances Control, Department of Water Resources, Resources Agency, State Water Resources Control Board, Division of Water Rights, State Water Resources Control Board, Divison of Financial Assistance

Other (storm drain system-stormwater BMPs)

Coastal Permit

Aesthetics, Air Quality, Cultural Resources, Cumulative Effects, Geology/Soils, Hydrology/Water Quality, Noise, Public Services, Recreation, Transportation