REBECCA RUSCHMA ECS MIDATLANTIC

11 5th St Se, Washington, Dc 20003
We will perform a total of two soil borings on the proposed site and one auger probe boring for infiltration testing. One boring will extend to a depth of 1 feet, and the another will extend to a depth of 15 feet below existing site grades, and will be located within the bounds of the private property. We will also drill one probe boring, offset from the 15 foot boring, to a depth of approximately feet below existing site grades for the infiltration testing and will be located within the bounds of the private property. The borings will be drilled utilizing 3. 25-inch hollow stem, continuous flight augers. The borings will be performed utilizing an atv-mounted drill rig and will generate an approximate 6-inch annulus. After geotechnical exploration is completed, the borings will be backfilled with bentonite slurry, which has a consistency of two pounds bentonite powder to one gallon water. Borehole abandonment will be performed by tremie-grouting via a positive-displacement pump from the