Frank, Could you have a look at this? Thanks, Clay Barnett, P.E. Town Engineer Town of Addison 16801 Westgrove Drive Addison, TX 75001-2818 Office: (972) 450-2857 From: John Johnston [mailto:jwjohnston-hja@sbcglobal.net] Sent: Wednesday, June 30, 2010 5:02 PM To: Dan Claassen; Jim Albertson; Joe Helmberger; Corey Van Trease; Clay Barnett; Frank McIllwain Subject: Additional Base Material Attached is a letter recommending that any additional base material needed to make final grade meet the requirements of FAA Item P-209, Crushed Aggregate Base Course. Thanks, John John W. Johnston, P.E. Henley-Johnston & Associates, Inc. 235 Morgan Avenue Dallas, Texas 75203-1025 Texas Firm Registration No. F-1238 Phone: 214-941-3808 Fax: 214-943-7645 e-mail: jwjohnston-hja@sbcglobal.net