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Recycled Product Experience:

Compost-Amended Topsoil at the West Point Treatment Plant

Product and recycled content Compost-Amended Topsoil
40% composted biosolids 60% sand (mix by volume)
Application Used as topsoil; replaces topsoil with peat or other organics
Location/Date West Point Treatment Plant
1995-1996
Project manager/user Landscape Contract Manager
West Point Treatment Plant, (206)263-3322
Architect/Engineer CH2M Hill
General Contractor Ohno Construction Company
Background, history A perfect fit using composted biosolids to landscape a waste treatment facility
Performance Great, due to a high level of quality control
Source of material Sawdust Supply (supplies Groco), Seattle, Washington
Contact: Curley Winebrenner (206)622-5141
Quantity Approximately 40,000 cubic yards of blended topsoil
Cost $25.00 per cubic yard, including delivery by barge and incorporation into subsoil
Cost savings or increase N/A
Installation, costs/savings Same
Source of extra funds None
Would you buy this product again? Yes.
Why or why not? The organic material retains water, even though the soil is sandy (as the site requires)

For more information:

Compost-Amended Topsoil

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Updated: June 25, 1998


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