5.0 
10.0 
15.0 
20.0 -1.0 -ft Contour 
10.0 
15.0 
200 -\.l-ft Contour 
Distance from Original SWL Intercept (ft) 
20.0 =|.2- ft Contour 
Co) 50 100 (50 
Cumulative Time (hr) 
Figure 28. Movement of the offshore zone in experiment 72A-06; 
comparison, Of they 0 el 2 anda loot cOmeouma sr 
50 
