COMPARISON WITH PRESENT RATES 181 



fully considered, and perhaps some slight modifications made in 

 some of the rates as a factor of safety against harmful loss 

 of revenue growing out of these conditions. 



There is a further comparison that may be made and that 

 has some interest in this case. In Chapter III is given a repre- 

 sentative rate in the form proposed by the Committee'* that 

 in a general way is found to correspond approximately with 

 average practice of American cities that have adopted the meter 

 system. If this schedule had been in effect at the plant in ques- 

 tion during the past year, the charges under it would have been 

 as follows : 



Service charges for 4958 services at $4.20 ( =$3 .00 +$1.20) $20,700 



Add approximately for larger services 10 per cent 2,070 



185.7 million gallons of water at 21 cents 39,ioo 



72 million gallons of water at 16 cents 11,500 



83.3 million gallons of water at u cents 9,206 



Total revenue at this rate $82,570 



The actual revenue from the sale of water was $91,226, 

 which is 10.2 per cent more than the sum that would have been 

 produced by the above mentioned rates. It is thus ascertained 

 that the actual rates of this company produced a revenue that 

 is about 10 per cent greater than the average or representative 

 rate as above defined would have done. 



* Jour. N.E.W.W. Assn., Vol. XXVIII, p. 212, 1914. 



