TCEQ 2015 Water Quality/Stormwater Annual Seminar Calendar When: September 23, 2015 – September 24, 2015 all-day 2015-09-23T00:00:00-05:00 2015-09-25T00:00:00-05:00 Where: DoubleTree by Hilton Hotel Austin 6505 North Interstate 35 Austin, TX 78752 USA Contact: Texas Commission on Environmental Quality Event website