William A. Hazel, Inc. is currently working on phase 2 of the Arden Development in McLean, VA for Toll Brothers. The project includes 200,000 CY of earthwork, 6,000 LF of both gravity and force main sanitary, six underground detention structures, 5,300 LF of watermain, 6,700 LF of storm sewer and associated roadway grading and stone.