41 



Depth Difference 

 Total Accumulation of Dredged Material 



over the F Mound 

 July 1996 versus July 1990 Bathymetry 



40" 59.250' N- 



40'> 59.200' N- 



40° 59.150' N 



40° 59.100' N 



Survey Artifact 



73° 28.900' W 



73° 28.800' W 



WLIS 



275 m X 440 m Survey Area 

 Difference in meters 

 NAD 27 



m 



100 m 



Figure 3-20. Depth difference plot of the 275 m x 440 m analysis area, July 1996 versus 

 July 1990, 0.25 m contour interval 



Monitoring Cruise at the Western Long Island Sound Disposal Site, July 1996 



