25 



and bathymetric surveys over the NHAV 93 mound and to carry out numerical 

 computations of settlement and volume changes. 



Results of URI's analysis of the sediment cores and surface grabs have been 

 submitted in a separate report (Silva et al. 1994b). Twenty good quality cores with lengths 

 from 69 cm to 302 cm were recovered during the baseline, precap, and postcap surveys 

 using the LGC system (Appendix D). Before splitting the cores (core liners), a Multi- 

 Sensor Core Logger (MSCL) was used to obtain profiles of sediment bulk density. Visual 

 descriptions (and photographs) were recorded and subsamples extracted for analysis of the 

 physical properties (grain size, water content, Atterberg limits, and specific gravity). 

 Consolidation behavior was measured through analysis (void ratio versus effective stress, 

 compression index, and consolidation stress) and permeability data (direct and indirect 

 measurements). 



Monitoring Surveys of the New Haven Capping Project, 1993-1994 



