19 



Table 2-4 



Central Long Island Sound Capping Operations Project Characteristics 



Project 

 Name 



Dates 



Contaminated 



Mound 



Volume m 3 



Capping 



Sediment 



Volume m 3 



Ratio 

 CaprMound 



Reference 



Stamford- 

 New Haven 

 North 



Stamford- 

 New Haven 

 South 



April-June, 1979 



March-June, 1979 



September-October, 1979 



January -June, 1980 



26,000 (ST) 



38,000 (ST) 

 6,000 (ST) 



33,000 

 (NH-sand) 



110,000 

 (NH-silt) 



110,700 (NH) 

 Total: 220,700 



1.3:1 

 5:1 



Morton 



1983, 



Barge Logs 



Barge Logs 



Norwalk 

 Harbor 



April-May, 1980 



19,900 

 (NOR-C1.III) 



48,000 

 (NOR-Cl.I+II) 



180,300 

 (NOR-Cl.I+II) 

 Total: 228,300 



11.5:1 



Barge Logs, 

 Feng 1982 



January -June, 1981 



70,000 

 (NOR-C1.III) 



280,000 silts 



4:1 



Morton 

 1984 



Mill- 



Quinnipiac 



River 



March-June, 1982 



42,000 (MR) 



133,200 (Q) 



3.2:1 



Barge Logs 



March-June, 1982 



70,000 (MR) 



190,000 (Q) 



2.7:1 



SAIC 1984 

 Bathymetry 



March-May, 1983 



66,800 (BR) 



400,200 (NH) 



6:1 



Barge Logs 



Cap Site 1 

 Cap Site 2 



April-May, 1983" 

 April-May, 1983 



33,200 (BR) 

 38,100 (BR) 



53,700 

 (NH-silt) 



42,000 

 (NH-sand) 



1.6:1 

 1.1:1 



Barge Logs 



ST = Stamford Harbor 



NH = New Haven Harbor 



NOR = Norwalk Harbor; Class I and II materials for cap, Class III materials for mound 



MR = Mill River 



Q = Quinnipiac River 



BR = Black Rock Harbor 



Sediment Capping of Subaqueous Dredged Material Disposal Mounds 



