TCAUG Members Curtis Carter AEP Service Corp 502 N. Allen Ave. Shreveport, LA 71101 (318) 673-3824 Greg Keenan AEP Service Corp 502 N. Allen Ave. Shreveport, LA 71101 Jim Hodson Alcoa P.O. Box 472 Rockdale, TX 76567 Betty Brown Bickerstaff, Heath, Pollan & Caroom 816 Congress Avenue Suite 1700 Austin, TX 78701 Rick Hoelscher Boral Material Tech 45 NE Loop 410 Suite 700 San Antonio, TX 78216 E. R. Olson CPS Energy – San Antonio P.O. Box 1771 San Antonio, TX 78296-1771 Jeff Kruse CPS Energy – San Antonio JKS Plant 9599 Gardner Rd. San Antonio, TX 78263-9701 Abe Gallegos CPS Energy – San Antonio P.O. Box 1771 San Antonio, TX 78296-1771 Rick Johnson Entergy Services, Inc. Parkwood Two Bldg. Suite 400 10055 Grogans Mill Road The Woodlands, TX 77380 Jerry Smith Headwaters Resources, Inc. 157 W. Shadowpoint Cir The Woodlands, TX 77381   Jimmy Lambert Headwaters Resources, Inc. P.O. Box 704 Marquez, TX 77865 (979) 229-4772 John Ward Headwaters, Inc. Mike Mings Lafarge NA 1949 E. Sunshine Suite 2-220 Springfield, M0 65804 Anne Tierce LCRA Ken Koehler LCRA Nancy Overesch LCRA P.O. Box 220, MS H403 Austin, TX 78767-0220 Danny Gray MRT (281) 362-1060 Hugh Shannonhouse MRT (281) 362-1060 Jim Hicks Mineral Resource Technology 2700 Research Forest Drive Suite 150 The Woodlands, TX 77381 (281) 362-1060 Mike Silvertooth Mineral Resource Technology 2700 Research Forest Drive Suite 150 The Woodlands, TX 77381 (281) 362-1060 Jeffrey Davis NRG of Texas 1301 McKinney Suite 2300 Houston, TX 77010   Tracy Wandell Sphere Services 123 Leinart Street Suite 205 Clinton, TN 37716 Ed Bauer Texas MPS Gibbons Creek P.O. Box 7000 Bryan, TX 77805 (936) 873-1129 Eddy Young Twin Oaks Power P.O. Box 37 Bremond, TX 76629 (254) 746-7604 ext.378 Don Saylak TTI College Station, Texas 77843 (979) 845-9962 Greg Karlik TXU Energy 1601 Bryan Street EP-28 Dallas, TX 75201 (214) 812-8586 Jeff Jones TXU Energy 1601 Bryan Street EP-28 Dallas, TX 75201 (214) 812-8586 Stephanie Strother TXU Energy 1601 Bryan Street EP-28 Dallas, TX 75201 (214) 812-8586 Steve Read Xcel Energy 4653 Table Mountain Dr. Golden, CO 80403 (214) 812-8586 Don Callaway DWCA Consulting 9 Park Lane Bedford, TX 76021 (817) 312-4657 Walter LeMaire Mineral Resource Technologies 2700 Research Forest Drive, Suite 150 The Woodlands, Texas 77381 (281) 362-1060