GEI CONSULTANTS INC

809 Channing Pl Ne, Washington, Dc 20018
Drill and sample four soil borings on site using hollow stem augers on a truck mounted or track mounted drill rig. The estimated depth of the borings is approximately 25 feet. Sampling will be collected every 5 feet by either standard penetration test, spt, split spoon sampler. Each borehole will be backfilled after drilling and sampling is completed by using bentonite powder and water slurry from the bottom using tremie pipe with positive displacement pump, as described below. All drill cuttings generated by the borehole activities will be containerized and appropriately disposed of in accordance with the generators waste profile information. All borings and probe holes will be grouted to the ground surface immediately upon completion. Boreholes will be backfilled using a grout mixture of bentonite and potable water. Once the borehole is completed, the bentonite slurry will be poured directly into the borehole to an elevation of one foot from the top and then capped with portland ceme