July Aug. Sept. 
Go 30 
it, 
2 
i 
o 
& 
a 
& 25 
72B-06 
20 
fe) 50 100 150 
Cumulative Time (hr) 
35 July Aug. Sept. 
30 
e 
2 
23 
ca 25 
= 
& 
20 
72B-10 
15 
0 50 100 150 
Cumulative Time (hr) 
Figure 40. Water temperature changes, 1972. 
7\| 
