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  • Charles A. Warsinske posted an update in the group Group logo of The Sustainable Sites InitiativeThe Sustainable Sites Initiative 11 years, 5 months ago

    My civil engineer handed me a brochure on the Filterra Bioretention System which appears to be a vault, filled with gravel, sand and a little peat moss that takes in and filters storm water. The vault is topped with a tree grate where you plant a plant from the recommended list provided by Filterra. Has anyone used this system? They recommend that you use Blue Palo Verde here in Seattle. Clearly they need some help with their plant selection. Chuck

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