122 



43' 34.000' N 



43' 33.800' N 



Portland Disposal Site Royal River Project Area 



Detection of CDM at Postcap REMOTS® 



Survey Stations and Core Locations over 



Postcap Bathymetry Disposal site 



Boundary 



43' 33.600' N 



70' 



01.800" 



W 



70' 01 .600' W 



Postcap REMOTS® Station 



# Cap Thickness (cm) 



^ HP (No Penetration) 

 > Indicates greater than 

 camera penetration 

 Postcap Core Location 





Detection of CDM 



— =- >20 cm depth 

 "~=~ 10-20 cm depth 

 „„„=, 2-10 cm depth 



O NA (Not Available) 



# Cap Thickness (cm) 









70' 01.400' W 



m 200 m 



Figure 5-2. Thickness of CDM measured by REMOTS® and core data overlaid on 

 postcap bathymetric chart of (NAD 27), 1.0 m contour interval (MLLW) 



ne Portland Disposal Site Capping Demonstration Project, 1995-1997 



