Rob, Here you go - sorry but took me longer than I thought. I have responded to John's comments but have not received any from Clay? Bill William A. Parsons, PE Project Manager ARS Engineers, Inc. 5910 North Central Expressway, Suite 1000 Dallas, Texas 75206 214-739-3152 Phone 214-739-3169 Fax This e-mail and any files transmitted with it are confidential and are intended solely for the use of the individual or entity to whom they are addressed. If you are NOT the intended recipient or the person responsible for delivering the e-mail to the intended recipient, be advised that you have received this e-mail in error and that any use, dissemination, forwarding, printing or copying this e-mail is strictly prohibited