Signed Change Order #3. Andrew Harper Cell (214) 886-6666 From: Christiansen, Eric [mailto:echristiansen@halff.com] Sent: Monday, June 06, 2011 5:51 PM To: Barnett, Clay; Eric T. Little; Andrew Harper Cc: Nick Jacob Subject: Vitruvian - Change Order No. 3 Importance: High Gentlemen, Please review the attached copy of CO#3. I believe you’ll find the numbers to be correct, although we’re showing a penny difference from those provided by Austin. You’ll also notice that I haven’t changed the contract days from the previous version. If something needs to change, please let me know immediately. Thanks, Eric Eric S. Christiansen, P.E., SECB Senior Structural Engineer HALFF ASSOCIATES, INC. 1201 North Bowser Road Richardson, Texas 75081 Office 214-346-6284 Cell 972-955-2996 Fax 214-739-0095 www.halff.com