FIGURE 4 Figure 25 



AVERAGE COLIFORM DENSITIES 

 OBSERVED IN 1959 AND 1970 



< - VALUE IS LESS THAN INDICATED 



>- VALUE IS GREATER THAN INDICATED 



O-I970 SURVEY 

 Q-1959 SURVEY 



NAUTICAL MILES 



IS 



14 



15 16 17 18 19 21 

 SAMPLING STATIONS 



