Oak Park Green Streets Urban Retrofit

 Oak Park Green Streets Urban Retrofit

The Oak Park Green Streets Urban Retrofit project is located in the unincorporated community of Oak Park in the County of Ventura, California, and within the Malibu Creek Watershed. This urban retrofit project includes 20 subsurface filtration systems, proprietary modular wetlands® installed within the County’s right-of-way to treat nuisance flows from residential areas. Phase I of the project, including installation of 10 modular wetlands®, was completed in November 2017, and Phase II, including installation of an additional 10 units, was completed in February 2021. The total project will treat an estimated 35 acre-feet of dry weather runoff per year from a combined tributary drainage area of approximately 114 acres.

 What is a Modular Wetland®?

A Modular Wetland® is a pollutant removal system for solids, bacteria, oil/grease, nitrate, copper, zinc, and other common urban pollutants. The horizontal flowing biofilter efficiently utilizes a combination of physical, chemical, and biological filtration processes to capture and treat nuisance flows.


Modular Wetland® #1 – Tamarind Street

Modular Wetland® #6 – Parkview Drive and Conifer Street


Please do your part to pick up pet waste, prevent litter and
dispose of hazardous liquids properly to keep our watershed clean!


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Funding for this project has been provided in part through an agreement with the State Water Resources Control Board.