
Management of environmental protection measures associated with the construction of the DC Clean Rivers Northeast Boundary Tunnel.
Management of environmental concerns associated with construction of the new WMATA Potomac Yards Metro Station

Transport and disposal of nearly 16,000 tons of hazardous and non-hazardous arsenic contaminated soil and water.

Denature, transport and disposal of medical marijuana and related waste products.

Transport and disposal of several thousand tons of hazardous PCB contaminated concrete from building demolition

Management of environmental protection measures associated with the construction of the new Poplar Point Pump Station