32 



Table 4-1 



Comparison of Barge Log Volumes and Volume Estimates from 

 Bathymetric and REMOTS® Surveys 



Average 



Penetration Depth 



of REMOTS® 



Camera 



Estimated Volume 



of Dredged Material 



on Mound Flanks 



(m 3 ) from 



REMOTS® 



Combined Volumes 



(m 3 ) from REMOTS® 



and Bathymetric 



Surveys** 



% of Corrected + 



Barge Log Estimate 



(220,214 m 3 ) 



10 



66,100 



144,175 



65.5 



20 



132,200 



210,275 



95.5 



** The bathymetric volume calculation resulted in 78,075 m 3 of material (95% 

 confidence limits; 55,000 m 3 to 100,650 m 3 ). 



+ Assuming in-place volume is 15% less than barge estimates due to 



consolidation purposes. 



Monitoring Cruise at the Massachusetts Bay Disposal Site, August 1990 



