James Miertschin & Associates, Inc.; Parsons Water & Infrastructure, Inc.; Institute for Environmental Health; Texas Institute for Applied Environmental Research(Texas Institute for Applied Environmental Research, 2006-07)
Ulery, Randy L.; Shipp, Allison A.; Mahler, Barbara J.; Reutter, David C.; Van Metre, Peter C.; Moring, J. Bruce; Land, Larry F.(U.S. Department of the Interior, 1998)