82 



Table 4-3 (continued) 



Precap Survey 

 Station 



Replicate 



Camera Penetration (cm) 

 Min Max Average 



Station 

 Average 



Pseudo-UDM 

 (cm) >pen* 



Thickness 

 Average 



Historic DM Thickness 

 (cm) >pen* Average 



11.5 



13.5 >pen 



14.8 >pen 



16.( 



>pen 



0.0 



9.4 >pen 



5.8 



10.5 >pen 



>pen 



NA 



0.0 



16.8 >pen 



18.6 >pen 



16.3 >pen 



17.3 >pen 



lO.S >pen 



lO.f 



>pen 



16.5 >pen 



11 



15 >pen 



17.5 >pen 



10.6 



16 >pen 



18 >pen 



18.9 >pen 



16.3 >pen 



">pen" indicates thickness greater than the camera penetration; where not specified, ambient sediments were below the measured dredged matenal. 



The Portland Disposal Site Capping Demonstration Project, 1995-1997 



