Municipal Composting
Yard Waste
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Royal Organics - Royal City, Washington
Royal Organics has been composting mint waste using the turned
windrow method since 2002 and has recently converted over
to an extended aerated static pile system in 2007. Virtually
all of the mint compost is sold for use in organic orchards
in Eastern Washington. Also beginning in 2007, Royal Organics
began composting all of the municipal yard waste that is generated
in the Spokane, Washington, region - an estimated 50,000 tons
per year. The fine fraction of this compost is sold to nurseries,
landscaping companies, and homeowners. The coarse (1"
to 2" material) is sold for erosion control purposes
for Washington Department of Transportation projects. O2Compost
provided the equipment for aerated composting along with operator
training and third-party review. |
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North Mason Fibers – Belfair, Washington
Green waste from curbside collection
With assistance provided by O2Compost, North Mason Fiber is
the newest permitted compost facility in western Washington.
They have recently expanded their system to an EASP method,
and currently could sell twice what they produce. They plan
on doubling their capacity by the end of 2005. |
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Signature Landscape – Redmond,
Washington
Grass clippings, leaves and prunings
Signature was paying in excess of $50,000 a year in disposal
costs. With changes in state regulations, they were allowed
to compost up to 250 cubic yards at a time. This resulted
in a savings of nearly $30,000 the first year. They use the
finished compost on their projects. |
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Rich Landscape – Fall City, Washington
Grass clippings, leaves and prunings
Rich Landscape was under a compliance order with the county
to clean up their waste piles behind their nursery. This system
incorporates aeration in the concrete slab, and the hoop house
covers prevent over-wetting. They sell and use their finished
compost on new installations. |
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Old Ranch Country Club – Seal Beach, California
Green waste from trees, greens and landscaped areas
They utilized an existing set of masonry block commodity bays
to conduct a successful trial. A new compost system, with
aeration incorporated in the slab, is currently being designed.
The finished compost is used in landscape areas around the
18-hole course. |
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