6 Conestoga-Rovers & Associates 7 ACZ Laboratories, Inc. 8 Weston Solutions 9 Chartis 10 Terracon 11 McAfee & Taft, P.C. 12 Enercon 13 Lochner 14 Crowe & Dunlevy, P.C. 15 SAIC 19 DEQ 20 Ryan Whaley Coldiron Shandy PLLC | 21 C.H. Guernsey & Company 22 Brownfields Program, Oklahoma Corporation Commission 23 Burns & McDonnell Engineering Company, Inc. 24 ESC Lab Science 25 Basin Environmental & Safety Technologies 26 Conference Resources |