NA WESTBROOK PARTNERS LLC; ECS MIDATLANTIC LLC

923 16th St Nw, Washington, Dc 20006
We plan to perform a total of one geotechnical boring on the proposed site. The one soil boring will be drilled in the northern part of the proposed hotel building additions footprint. The one soil boring will be located within the bounds of private property, and will be drilled to a depth of feet below existing site grades. The boring will be drilled utilizing 4. 25 hollow stem continuous flight augers and/or mud rotary drilling. The borings will be performed utilizing a truck-mounted drill rig and will generate an approximate 6 inch annulus. After geotechnical exploration is completed, the boring/auger probe will be backfilled with bentonite slurry, which has a consistency of two pounds of bentonite powder to one gallon of water. Borehole/auger probe abandonment will be performed by tremie-grouting via a positive displacement pump from the bottom of the borehole/auger probe.