El condado de King proporciona soluciones a la contaminacion por agua de lluvia en South Park y Highland Park. Aprenda mas acerca de nuestro trabajo para reducer los desbordes de alcantarillas y promover soluciones verdes.
This project will explore the feasibility of controlling CSOs using Green Stormwater Infrastructure (GSI) or a combination of GSI and storage for sewer overflows. GSI diverts stormwater from the sewer system and allows it to slowly soak into the ground using rain gardens, bioretention swales and/or permeable pavement. Two neighborhoods – South Park and Highland Park – have been identified for exploration based on their relatively flat streets, wide planter strips or roads, and soils data to determine where water soaks in.
An early action in this area is the implementation of the RainWise incentive program that provides rebates to property owners who install rain gardens and cisterns on their property. The program is available now through 2015.
Any remaining stormwater will be controlled with a storage pipe option starting in 2019.
Why does King County need to do this project?
This project is part of a larger Combined Sewer Overflow (CSO) Control Plan that will reduce sewer overflows into local water bodies and protect public health and the environment that began in the 1960s. In this plan, there are nine projects left to complete to control overflows that occur at 14 CSO locations in the regional wastewater system. Duwamish projects, including Terminal 115 and West Michigan green solutions, were prioritized based on what King County heard from the community.
The project timeline is as follows:
Project definition and research
2013 - 2014
2014 - 2016
2016 - 2018
Storage pipe project definition
& research, if needed
WTD will be in the area in fall 2013 doing early exploration of the soils and groundwater levels to better design any GSI options. Based on street layouts and results of soils and groundwater testing, King County will discuss options for streets with the community.
How King County works with the community
This project will protect the investments being made to clean up the Duwamish River and it will continue creating a better, cleaner river for South Park, Highland Park and the region to enjoy.
(Left) Rain garden planting event at Highland Park Improvement Club
(Right) New rain garden at the corner of 12th Avenue South and South Southern Street in South Park
King County works with communities to provide project information, identify potential impacts, and involve the community in project design where possible. Community members can expect:
One on one outreach to directly impacted neighbors
Community group briefings
Project newsletters and fliers
Project web page
View project library for project updates, fact sheets and other information
Controlling combined sewer overflows. This animation explains what is a combined sewer system, what happens when it rains, and how combined sewer overflows can be controlled, including CSO storage and CSO treatment.