+ 



o 

 O 



u 



3 

 (0 



O 



O 



o 





+ 

 O 



u 



3 

 O 





jAN FEB MAR i = = Mi^ _S i^; SEP OCT NOV DEC- 



CRAB CREEK AT BEVERLY 

 Average Monthly Water Quolity 

 1954 -1957 



FIG. 20 



47 



