Cleaner Environment
Healthier Horses

Municipal Composting

Yard Waste


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.

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.

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.

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.

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.