Table 1-1 



Grain Size Analysis of Dredged Material Source Areas Deposited 

 at MBDS during 1988-1990 



Source/Sample ft 



Date Sampled 



% Coarse 

 Material 



% Sand 



% Silt 



% Clay 



Scituate Harbor 



12/86-7/89 







14 



58 



28 







35 



51 



14 







37 



50 



13 







45 



40 



15 



Source/Sample tt 



Date Sampled 



% Coarse 

 Material 



% Sand 



% Silt/Clay 





Plymouth Harbor 



9/87-12/89 



3 



34 



63 









19 



81 





Boston Harbor/ 

 Chelsea Creek 



10/87-4/90 



12 



53 



35 





43 



43 



14 





5 



51 



44 





36 



41 



23 





36 



46 



19 





Squantum Channel 

 Dorchester Bay 



10/87-12/89 







64 



36 





Pines-Saugus River 



10/88-4/90 



15 



64 



21 





0.6 



90 



9.4 





0.5 



84 



15.5 





0.6 



93 



6.4 





Pines River 



12/88-12/89 



24 



62 



14 





Manchester Harbor 



1/89-7/89 







37 



63 









45 



55 





0.3 



85 



14.7 









58 



42 









59 



41 





0.4 



85 



14.6 





Monitoring Cruise at the Massachusetts Bay Disposal Site, August 1990 



