Classifications of contaminated sediment sites as applied to the Trenton Channel Project sediment survey results (1993-1996). (from Ostaszewski, 1997). _______________________________________________________________________________________________ Not Impacted Summed Toxic ERM/SEL(1) and Bioaccumulative QL(2) exeedances less than one, (<1) Impacted Summed Toxic ERM/SEL and Bioaccumulative QL exeedances between 1 and 15 Moderately Impacted Summed Toxic ERM/SEL and Bioaccumulative QL exeedances between 15 and 30 Severely Contaminated Summed Toxic ERM/SEL and Bioaccumulative QL exeedances between 30 and 60 Extremely Contaminated Summed Toxic ERM/SEL and Bioaccumulative QL exeedances greater than sixty, (>60) _______________________________________________________________________________________________ 1. ERM/SEL - Effects Range Median/Severe Effects Level 2. QL - Quantification Limit