The scope of this work is the construction of a stormwater management system that processes site drainage and surface water run-off from the Ridley Terminals Inc coal handling processing facility. When in operation the system will treat site water to remove coal solid contaminates prior to discharge into the ocean and surrounding habitat. The scope of work includes the installation of the pond basin HDPE liner, rebar installation and concrete slab pouring, installation of water and irrigation lines, decommissioning and removal of existing manhole, utilities and sump, and installation of dewatering platform. During construction DENT operated, maintained, and monitored a temporary water treatment center installed to handle site water until the systems functional completion. DENT will also facilitate the commissioning and testing phases of this treatment system, which will monitor the systems effluent output to ensure compliance with the owners permitting requirements.