New regulations throughout King County require builders to ensure they leave sites with good soil when the work is done. There are four soil treatment options that can be used to meet the post-construction soil standard. Cedar Grove can work with you to choose the best options for your site.
Option 1 – Leave native soil undisturbed, and protect from compaction during construction
Option 2 – Amend existing soil in place
Option 3 – Import topsoil mix with 8–13% soil organic matter content
Option 4a – Native Soil: Stockpile site duff and topsoil, and reapply after grading and construction
Option 4b – Disturbed Soil: Stockpile site soil, reapply, and amend in place.
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Support Soils for Salmon by using Cedar Grove Compost. To learn more about Soils for Salmon click here
Compost Filter Berms
Compost Blankets
Compost FilterSoxx TM
Compost blankets, berms and filter socks are now included on the U.S. EPA’s National Menu of Best Management Practices (BMP’s) for storm water management.
Cedar Grove Composting is a proud certified installer of Filtrexx TM systems. To learn more about Filtrexx TM systems click here
