A truck-mounted drill rig will be used to drill 5 borings -depths of 1 ft- to collect soil and groundwater data for the design of a new building. All borings will be abandoned using a grout with a mix ratio consisting of 2 pounds of bentonite powder to 1 gallon of water. The soil borings diameter will be 3. 25 inches. Bentonite slurry with 2. 1 ratio bentonite power and water, as per site plans, work plan report, dc well construction and schematic application. All work will be conducted under ddoe regulation, between potomac ave, r and 2nd street sw.