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Montgomery County Yard Trim Composting Facility

aerial view of Montgomery County Compost Facility in Dickerson, MD

We began composting yard trim at the Montgomery County Yard Trim Composting Facility in 1983. The program originated with the composting of leaves collected by the Department of Public Works and Transportation's curbside leaf vacuuming program.

Between 1989 and 1994, the program gradually expanded to include grass. Today, material is collected from all single family residences in the County. We also receive it from commercial and multi-family facilities. The finished product is marketed as Leafgro.

The 118-acre site includes

  • a 49-acre asphalt pad
  • three stormwater management ponds
  • an 80,000 square foot pavilion for drying and screening of finished compost
  • an office/scalehouse
  • a maintenance building
  • a storage building
  • a pump house for the on-site well.

The facility is owned by Montgomery County, and is operated by the Maryland Environmental Service (MES), with nine employees on site.

The site is located adjacent to the Montgomery County Resource Recovery Facility. It has an estimated annual processing capacity of 77,000 tons of material.

Silver Composting AwardOn July 16, 2016, this facility became the first composting center in the nation to earn International Organization for Standardization Certification for its Environmental Management System (ISO14001:2015), and was the second such facility to meet the ISO14001:2004 standard in 2013. Read our article about the certification process in the January 2014 issue of Biocycle magazine.

On June 17, 2014, the Solid Waste Association of North America (SWANA) named Montgomery County, Maryland, as the winner of the SWANA Silver Excellence Award in the Composting category.  SWANA recognized the County’s Yard Trim Composting Facility as state-of-the-art and cost effective. Learn more about the Silver Excellence Award.

The facility also received a 2014 National Association of Counties Achievement Award for its Environmental Management System and the development of this system.

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