33 



the other reference areas. CLIS-REF and 4500E showed similar average values for Cd, Pb, 

 and Zn. 



Table 3-1 



Results of Sediment Grain Size Analyses and Percent Total Organic 

 Carbon (TOC) for CLIS Reference Areas, June 1991 





2500W 



4500S 



CLIS-REF 



DESCRIPTION 



Dark grey 



clay-silt with 



shell fragments 



Dark grey 



clay-silt with 



shell fragments 



Dark grey 



clay-silt with 



shell fragments 



% TOTAL 

 ORGANIC 

 CARBON 



Rep 1 



Rep 2 



Rep 3 



Average 





1.15 

 0.97 

 1.04 



0.92 

 0.71 

 0.86 



0.87 

 0.88 

 0.92 



1.05 



0.83 



0.89 



GRAIN SIZE 

 ANALYSIS 





% Coarse Sand 

 (1 to -1 phi) 



2 



2 



2 



% Medium Sand 

 (2 to 1 phi) 



5 



4 



4 



% Fine Sand 

 (4 to 2 phi) 



6 



6 



7 



% Silt 

 (^4 phi) 



51 



59 



57 



% Clay 

 (^4 phi) 



36 



29 



30 



Monitoring Cruise at the Central Long Island Sound Disposal Site, June 1991 



