117 



Depth Difference 

 September 1997 versus July 1986 Master Bathymetric Survey 



41° 16.750' N" 



Depth Difference , 

 Due To Survey 

 Artifacts 



41° 16.500' N- 



41° 16.250' N 



41° 16.000' N- 



41° 15.750' N- 



-c? crr- 



v v~-y w 



1ZT 





72° 05.250' W 



72° 04.750' W 



72° 04.250' W 



NLDS 



Difference in meters 



NAD 83 



0m 



400 m 



800 m 



Figure 3-50. Depth difference between the 1986 and 1997 master bathymetric surveys 



Monitoring Cruise at the New London Disposal Site, 1992 - 1998 



