In July 2008, the Southeast Coast Network and the University of Georgia conducted an assessment of water and sediment quality at Timucuan Ecological and Historic Preserve (TIMU) as a part of the Network's Vital Signs Monitoring program (DeVivo et al., 2009). The monitoring was conducted in estuarine and tidal creek waters following the methods developed by the Environmental Protection Agency's National Coastal Assessment Program (U.S. EPA 2001). Descriptions of the water quality parameters and the assessment criteria are from EPA's National Coastal Assessment II Report (2005).