THE CALCULATION 



101 



- The four rate scales plotted in the ordinary way, but showing 

 domestic takers only, are shown in Fig. 20. 



If we take the rates calculated for the service charge and a 

 rate of 20 cents per 1000 gallons as representing what the bills 

 fairly ought to be in each case and find the differences for each 

 of the twenty takers under the three other methods of calculation, 

 the average differences are found to be as follows: 



Uniform rate $3 . 68 



Uniform rate with a minimum 2 .07 



Committee's alternate procedure i . 14 



Service charge o 



