Prince George's Organics Composting Facility

Over 50,000 tons of material is processed annually at the Prince George's County Organics Composting Facility. Yard trim is ground up and moved into long narrow piles known as windrows. In the fall, windrows are comprised primarily of leaves. In the spring, grass is added. The active composting phase requires both leaves and grass. Windrow composting is most effective when the carbon to nitrogen ratio is 25 parts carbon to 1 part nitrogen, the temperature ranges between 130 to 140 degrees Fahrenheit, the moisture is between 45% and 55%, and the oxygen is less than 5%.

Windrow Composting

Windrows are turned using a Scarab windrow turner to accelerate the composting process. Frequency of turning depends on environmental conditions. In general, windrows are turned more frequently during the spring and summer (approximately 2 turns per week). Depending on the weather, the rows of yard waste may require manual watering. Normally, our area receives enough rainfall and temperatures are moderate enough to avoid manual watering. However, in drought conditions or extremely hot weather, watering becomes necessary. The windrow composting process takes approximately 9 months to complete.

The material is then moved to a curing pile where it will continue to decompose for approximately 3 months. Once this process is complete, the compost is spread in a thin layer on the pad to dry
Next, the material is screened to remove all particles larger than 3/8 inch.


The final product is a dark humus-like material, which is marketed as Leafgro® by MES. It is produced in accordance with the Maryland Department of Agriculture regulations and is a great soil amendment. A network of retailers sells the Leafgro®. Revenue from the sale of this material is returned to the county to offset the cost of the composting operation.

Food Scrap Composting
Prince George’s County piloted food scrap composting during 2013 utilizing the Gore Cover technology which is an in-vessel aerated pile system with oxygen and temperature monitoring devices.  This technology is designed to create ideal composting conditions within the pile while efficiently trapping odors and other emissions such as dust and volatile organic compounds (VOCs).  This system allows for the processing of a greater volume of yard trim and the inclusion of food scraps on a smaller footprint of area with little energy consumption and creates finished compost within a 30 days.  Utilizing the GORE covered system enables the County to divert food scraps from the landfill increasing the overall recycling rate within the County.

The final product from this process is known as Leafgro GOLD®, a nutrient rich dark humus-like material, marketed by the County’s contractor, the Maryland Environmental Service (MES).  The compost is produced in accordance with the Maryland Department of Agriculture regulations and is a top quality soil amendment.  A network of retailers, found on MES’s website, sells the Leafgro GOLD®.  Revenue from the sale of this material is returned to the County to offset the cost of the composting operation.

During 2014, the County increased the Gore Cover system from a three heap pilot project, to a four heap continuous process. The composting of food scraps and yard trim mixed together in the Gore System has been so successful, another expansion to an eight heap system is in process.  Food scraps are accepted from pre and post-consumer entities, including residential, commercial and institutional sectors.

Curbside Collection

Residents must place containers curbside by 6 a.m. on the day of collection. Collections begin as early as 6 a.m. and continue until 8 p.m.


**All trash must be tied and bagged securely.**

Latex paint is NOT hazardous and should NOT be delivered to the Household Hazardous Waste (HHW) site. Learn how to dispose of properly by clicking here. 


** Plastic bags are NOT accepted. Place recyclables loose and un-bagged in your recycling cart or bin. **

The County provides single-stream recycling, which means items should be placed in the same container, without the need to sort or separate.

Overflow of recyclables can be placed on any receptacle or cardboard box marked with an X or the word “Recycling." Cardboard boxes will be collected with contents.


Residents who have County-provided collections should continue to place their yard trim at the curb by 6 a.m. on Mondays for regular collections. 

Residents who do not have curbside collection, may drop-off yard trim at the County’s Convenience Drop-off Centers during regular hours of operation, free of charge.

Convenience Centers

Residents who do not have County-provided curbside collection should use the Residential Convenience Drop-Off Centers for disposal of regular household bagged trash and un-bagged recyclables. 

Organics Composting FacilityOpen to commercial and business customers. The site is not conducive to small vehicular traffic. Residents with very large loads of yard trim may utilize the facility, however, be advised there is a tipping fee that will be charged.