Futility of a Sanitary Water Analysis 



43 



same stream at the same place. "Bad" water No. i was taken 

 from Kentucky River above the city of Frankfort at the water-works 

 intake. "Bad" water No. 2 is from Kentucky River below the 

 Frankfort sewers. Note that the dates of sampHng are the same. 

 The important feature of Series "E" is that here is a water, or a 

 dilute sewage, taken below the sewers of a city of 20,000 inhabitants 

 showing practically the same, if not a better condition, according 

 to the interpretation standards, than another sample taken from 

 the stream above the sewers. 



Cases similar to the above are very common. Two good examples 

 are presented in Series "F." 



SERIES " F " 

 Parts per Million. 



Date 



•i 



B 



a 



Mississippi River at Brainerd, Minn. 



Nov. 3, 1904 



(( (( ii 



Feb. 28, 1905 



Above town 

 Below •' 

 Above " 

 Below " 



St. Louis River at Cloquet, Minn. 



Oct. 31, 1904 

 Feb. 25, 1905 



Above town 

 Below ' 

 Above ' 

 Below 



SERIES "G." 

 Parts per Million. 



