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Case Studies

Imperial Hwy Median Biofiltration


City of Los Angeles Dpt. of Public Works
El Segundo
Stormwater retention system

Job Type:

Site work & landscaping
Parks & landscraping
Park West Landscape Inc.

Project Information:
Bio-filtration fits snugly between lanes of traffic and the industrial runoff from a major highway, sanitation processing plant, residential communities & the ocean. This urban street median storm water project is located on Imperial Highway between Pershing Drive and Main Street in El Segundo, CA. It is in a highly traveled street that divides LAX Airport and the residential neighborhoods of El Segundo. It also leads directly to Santa Monica Bay and the Pacific Ocean just down the street. The EcoRain solution help keep pollution out of the ocean.

The City of Los Angeles Department of Public Works, Bureau Of Sanitation conceptualized this project as one of 32 stormwater Best Management Practice projects funded by Proposition O. Project was completed November 2009.

The storm water runoff project is a bio-filtration system comprised of vegetated swales and an infiltration trench containing approximately 13,000 cubic feet (97,240 gallos) of EcoRain America TanksTM that will collect runoff from a 7.5-acre area.

It is removing bacteria, oil, trash and suspended solids from stormwater that would otherwise be discharged to SantaMonica Bay and the Pacific Ocean.

Shrubs and trees were planted in the project area, and an automated irrigation system that uses recycled water was installed.

used this installation as a trail for assessment and found through bidding that the EcoRain America TanksTM were the most cost effective to install. EcoRain America TanksTM have a 95% void space, and each unit takes only minutes to assemble.

The EcoRain America TankTM underground storm water detention system used at this school has a 23,000 cubic feet (172,040 gallons) capacity.

The goal of the system is to collect stormwater runoff, keeping it out of the Los Angeles River system and exfiltrate the water into the aquifers. Residents of the Los Angeles area use water from the aquifers for daily needs.

EcoRain America TanksTM use up to 80% less aggregate fill than other pipe and pipe arch systems.

ParkUSA is a multistage representative for EcoRAin America.