We will perform a total of 2 soil borings on the proposed site. The borings will be advanced to a depth of feet below the existing site grades. The borings will be located within the bounds of public property. The borings will be drilled utilizing 3. 25-inch hollow stem, continuous flight augers. The borings will be performed using an atv-mounted drill rig and will generate an apporximate 6-inch annulus. After drilling is complete, the borings will be backfilled in accordance with doee requirements with a bentonite slurry, which has a consistency of 2lbs bentonite powder to 1 gallon water.

Phase ii environmental site assessment. Installation of two 3-inch diameter geoprobe direct-push soil borings to approximate depths of 25 feet below ground surface on property identified as ssl 1043 0851, addressed 1317 e street se. Each of the borings will be completed as temporary piezometers using 1-inch diameter pvc pipe. Borings temporary piezometers will be open no longer than 24 hours and will be abandoned on the same as drilling by tremi-grouting, using a 2 pounds bentonite to 1 gallon of water slurry, per doee regulations. Idw will be properly managed.

This supplemental permit was issued online. Use the online permit view application on dcra intranet to view the details and print a copy of the permit. Alternatively, you can copy and paste the following url into an internet browser. Https:/ospi. Dcra. Dc. Gov/ospi/printpermit. Aspx? Param=zi8iggjeilf9r5ngrtfwvjsxj8zdrj3d