University of Iowa Flood RecoveryGeolocation: 41.6611, -91.5302

In June 2008, five feet of water flowed over the emergency spillway of the Iowa River. A few miles downstream, 22 buildings at the University of Iowa (UI) were inundated with floodwater. After buildings were cleaned by the cleanup contractors, Terracon's field staff collected air and surface samples to assess whether the cleanup contractors had mitigated the bacterial and fungal hazards left behind by the floodwaters. Utilizing a team of more than 60 staff from 15 different offices across the country, Terracon was able to cover multiple building sites simultaneously. Terracon then observed the cleanup contractors as they cleaned and re-stored the heating, ventilating, and air-conditioning (HVAC) systems in the remaining flood-affected buildings. To ensure a building was ready for permanent occupancy, Terracon collected random air samples and surface tape-lift samples throughout a building after the HVAC systems had run for at least 48 hours. As a final step, Terracon conducted formaldehyde testing of the ambient air in some of the new trailers that were used as temporary classrooms and offices to address concerns of formaldehyde out-gassing from the building materials.

Iowa City, IA


Associated Office

Cedar RapidsGeolocation: 41.9517, -91.6882
Terracon's Cedar Rapids office was the first office opened in 1965 as Soils Testing Services of Iowa, Inc. In 1980, Soils Testing Services of Iowa, Inc. had grown to six other offices and changed its name to Terracon. The Cedar Rapids office has a support staff of more than 40 engineers, scientists, engineering technicians, and administrative staff providing geotechnical, environmental, and materials engineering and testing. The Cedar Rapids office also owns and operates a barge and track-mounted drill rig that are capable of completing river borings.