80 



Table 4-3 



November 1996 Precap REMOTS® Sediment-Profile Photography Survey Results Showing 

 Detection of Fresh Pseudo-UDM and Historic Dredged Material 



Precap Survey 

 Station 



Replicate 



Camera Penetration 

 Min Max 



(cm) 

 Average 



Station 

 Average 



Pseudo-UDM Thicliness 

 (cm) >pen* Average 



Historic DM Thickness 

 (cm) >pen* Average 



CTR 



A 



15 15.5 



15.25 



16.C9 



14.8 1S.7 







0.0 1 



CTR 



B 



17 17.5 



17.25 





16.8 







CTR 



C 



15 15.75 



15.38 





14.8 







CTR 



D 



16 17 



16.50 





16.5 >pen 







SON 



A 



18.75 19.25 



19.00 



14.69 



18 13.7 







0.0 1 



SON 



B 



18.5 18.75 



18.63 





17 







SON 



C 



10 10.25 



10.13 





8.8 







SON 



D 



8.25 13.75 



11.00 





1 1 >pen 







lOON 



A 



OVER PEN 



NA 



16.03 



NA 1S.8 



NA 



0.0 1 



lOON 



B 



OVER PEN 



NA 





NA 



NA 



lOON 



C 



OVER PEN 



NA 





NA 



NA 



lOON 



D 



16 16.75 



16.38 





15.5 







lOON 



E 



10.25 12.75 



11.50 





11.5 >pen 







lOON 



F 



16.5 17 



16.75 





168 >pen 







lOON 



G 



19 20 



19.50 





19.5 >pen 







200N 



A 



NO PEN 



NA 



NA 



NA NA 



NA 



NA 1 



200N 



B 



NO PEN 



NA 





NA 



NA 



200N 



C 



NO PEN 



NA 





NA 



NA 



200N 



D 



NO PEN 



NA 





NA 



NA 



50NE 



A 



17.25 19.75 



18.50 



14.13 



19.25 >pen 14.2 







0.0 1 



50NE 



B 



12.5 13.75 



13.13 





12.5 







SONE 



C 



8.5 9.75 



9.13 





9.1 >pen 







SONE 



D 



13.5 18 



15.75 





15.8 >pen 







lOONE 



A 



15.25 17.5 



16.38 



17.38 



16.4 >pen 17.4 







0.0 1 



lOONE 



B 



OVER PEN 



NA 





NA 



NA 



lOONE 



C 



17.75 19 



18.38 





18.4 >pen 







200NE 



A 



NO PEN 



NA 



1C.38 



NA 9.2 



NA 



0.0 1 



200NE 



B 



NO PEN 



NA 





NA 



NA 



200NE 



C 



5.5 7 



6.25 





6.3 >pen 







200NE 



D 



NO PEN 



NA 





NA 



NA 



200NE 



E 



NO PEN 



NA 





NA 



NA 



200NE 



F 



9 10.5 



9.75 





9.8 







200NE 



G 



15 15.25 



15.13 





11.5 







SCENE 



A 



13.5 14.25 



13.88 



14.16 



13 13.8 







0.0 1 



SCENE 



B 



10.75 11.75 



11.25 





11.3 >pen 







SCENE 



C 



15.75 16.75 



16.25 





16.3 >pen 







SCENE 



D 



14.75 15.75 



15.25 





14.5 







lOOENE 



A 



17.25 19 



18.13 



16.67 



17 1S.5 







0.0 1 



lOOENE 



B 



16 18 



17.00 





15 







lOCENE 



C 



14.25 15.5 



14.88 





14.5 







20CENE 



A 



OVER PEN 



NA 



17.31 



NA 17.2 



NA 



0.0 1 



200ENE 



B 



OVER PEN 



NA 





NA 



NA 



20CENE 



C 



16.25 18 



17.13 





17.1 >pen 







2C0ENE 



D 



15 15.25 



15.13 





14.8 >pen 







200ENE 



E 



18 19 



18.50 





18.5 >pen 







200ENE 



F 



17 20 



18.50 





18.5 >pen 







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



The Portland Disposal Site Capping Demonstration Project, 1995-1997 



