photographs were collected at each of twelve stations, while six replicate photographs were 

 taken at Station B34. 



Following field operations, REMOTS® biological and physical parameters were 

 measured directly from color transparencies using a video digitizer and computer image 

 analysis system. Sediment-profile analysis and interpretation are formal and standardized 

 techniques (Rhoads and Germano 1982, 1986). Customized software allows the measurement 

 and storage of data from as many as 21 different variables for each REMOTS® photograph. 

 All data were edited and verified by a senior-level scientist before being approved for final 

 interpretation. REMOTS® parameters measured in this survey included sediment type, prism 

 penetration depth, surface boundary roughness, presence of mud clasts, apparent redox 

 potential discontinuity (RPD) depth, infaunal successional stage, presence of sedimentary 

 methane, organism-sediment index (OSI), and bedforms. REMOTS® data for each photograph 

 are included in the Appendix. A more detailed description of these parameters and the image 

 analysis methods are available in SAIC Report No. 240 (SAIC 1990b). 



Reconnaissance Survey of the Historical Bridgeport Disposal Site, August 1992 



