- Notice of Response to Request (PDF) (17 pp, 228 K, published August 13, 2008 )
- Press Release announcing EPA's response to the request (August 7, 2008)
- Notice of Receipt of Request (PDF) (3 pp, 184 K, published May 22, 2008)
- Press Release announcing that EPA needed additional time to respond to the request (July 22, 2008)
- Letter to EPA Administrator Johnson from Governor Perry (PDF)(3 pp, 138 K, April 2008)