Table 1, Analysis of major oil tanker accidents by ship size 

 (Source: Major Oil Spill Directory, Smithsonian 

 Institution, 1975) 



Loss/DWT a carried Average spill size 

 Ship size Sample size (Gal) b (Gal) b 



<80,000 DWT 8 45.7 1,638,500 



>80,000 DWT 10 32.5 4,797,000 



a 0ne DWT (deadweight ton) is roughly equivalent to 250 gal capacity. 

 b 0ne gal is equivalent to 3.785 1. 



Table 2. Analysis of spills greater than 10,000 gal from waters 

 of the United States (Source: U.S. Coast Guard 1971 to 1977) 



Year 3 



1970 

 1972 

 1974 

 1975 



1970 

 1972 

 1974 

 1975 

 a Data not available for 1971 and 1973. 



17 



