2/9/10 - L-R Vice Mayor Val Lerch and Anthony G. Arevalo acting division officer Storm Water/Environmental Compliance Division for the city of Long Beach look a the graphic explaining VSS at the groundbreaking celebration for 3 pump stations to reduce trash in the LA River. All 3 stations located within the LA River Watershed in the city of LB. Each station drains directly into the LA River. The trash capturing devices will significantly reduce the amount of trash entering the river.
The stormwater pump station 11 background. The project consists of installing a Vortex Separation System )VSS) unit on a large storm drain leading to the pump station. The VSS works like a spin cycle of a washing machine. Storm water enters a cylindrical chamber then spins through a cylindrical perforated screen which traps and draws trash, sediment and green waste to the bottom of a little sump. It's then vacuumed out later during the normal scheduled maintenance cleaning. The filtered storm water continues its path through thte VSS unit and into the LA River.
Photo by Brittany Murray / Press Telegram