Montgomery County Yard Trim Compost Facility Dickerson, MD

Dickerson Compost Facility

Operation of Facility Facility is owned by County Operation is by contract with MES Site sits on 117 acres Composting is done on 48-acre asphalt pad Composting began in 1984 with leaves only Now composting leaves & grass Cycle begins in Nov. with leaves, grass is added in Spring, process is completed in Sept. Material is screened sold in bags or bulk

Grinding of Material at Transfer Station

Windrow composting system is used

Making of Windrows

Scarabs are used to turn windrowed material at 140° F

Screening of Material

Bagging of Material

Incoming Yard Trim

Leafgro Bulk sales

Bagged Leafgro to Distributors

Reintroduction of ComPRO for lawns

Environmental Controls National Pollutant Discharge Elimination (NPDES) Permit: –Parameters - Biochemical Oxygen Demand (BOD) 100 mg/l – Total Suspended Solid (TSS)100 mg/l –pH 6-9 mg/l Permit allows discharge into streams when parameters are met The Water is usually used to irrigate rows in the summer

Legal Controls SCA Agreement of Settlement & Compromise Places restrictions on facility Limits materials to site to 77,000 tons per year Prohibits expansion of facility Limits days and hours of operation- M-F 7:30-4:30PM County has to meet with SCA periodically and prepare two reports a year

County Facilities in Dickerson