Dociunent and delineate any changes in seafloor topography over the NL-9 1 and D/S 

 Mound Complex since September 1997 and over the Seawolf Mound since July 1998; 

 and 



Assess the benthic recolonization status of the NL-91 and D/S Mound Complex, the 

 Seawolf Mound, and the USCGA Mound relative to the three reference areas 

 surrounding the NLDS. 



The August 2000 field effort tested the following predictions: 



Dependent upon the disposal pattem over the NL-91 and D/S Mound Complex, the 

 deposition of nearly 30,000 m^ of additional CDM since 1997 will result in 

 accumulations of supplemental cap material on the seafloor having a thickness on the 

 order of 0.5 m. 



The sediments over the NL-91 and D/S Mound Complex, the Seawolf Mound, and 

 the USCGA Mound will be supporting a stable benthic conununity, with Stage II and 

 Stage in organisms abundant and OSI values comparable to those at the adjacent 

 NLDS reference areas. 



Monitoring Cruise at the New London Disposal Site, August 2000 



