N A ELLISDALE CONSTRUCTION

48 Georgia Ave Nw, Washington, Dc 20011
To determine the potential for soil vapor intrusion, two temporary soil vapor points will be installed at the northwest corner of the property. The locations of the proposed soil vapor sample locations are depicted on figure 1. Temporary soil gas sample implants will be installed at eat location using direct push drilling methods, geoprobe. The geoprobe creates little disturbance, leaving only a 1. 25 inch diameter hole and generates little to no soil cuttings. The implants, consisting of six inch long stainless steel screen attached to a 0. 25 inch diameter polyethylene tubing, will be installed at a target depth of 15 feet bgs. Each soil gas point will be flush mounted using a four inch diameter vault cover with a galvanized steel sleeve.