112 HALIFAX WATER WORKS. JOHNSTON. 



main. The gas company had the same trouble during this 

 winter, and the city engineer at the time suggested that the 

 only cause of this could be from shock of earthquake felt on the 

 peninsula on the 31st December, 1882. Subsequent to the 

 explosion of the Acadia Powder Company's works at WaVerley 

 (about 12 miles from Halifax) on the 1st January, 1905, the 

 gas company had the same trouble with a number of their 

 service pipes, especially on Coburg Road and in that vicinity, 

 but the water pipes escaped injury. 



At one time in the history of the works eels were a constant 

 annoyance in choking service pipes, but latterly it is quite 

 rare to have any bother from this cause. An exception to this 

 was in 1896, when owing to the danger of ice blocking the 

 screens a;t thle pipe house they were removed, and the following 

 spring there were several complaints of service pipes being- 

 choked by eels. 



The total number of service pipes laid up to the first of 

 January, 1904, was 6,939. 



Consumption and Waste. 



In January, 1906, three Venturi meters were received from 

 the makers, to measure the quantity of water flowing into 

 the city. One of them the 15-inch, was installed, and 

 it was hoped that results would have been obtained before 

 the reading of this paper, but owing to delav in sending the 

 registering apparatus no records have as yet been obtained.* 



* The Venturi meters having been set and put in operation during the period 

 between the reading of this paper and its publication, the exact consumption has 

 been obtained, and this note is added giving the revision of the figures in accord- 

 ance with the information thus gained. For the 24 hours ending at 1 p. m. on the 

 6th December, 1906, the following quantity of water passed through the meters : 

 Through the 14" meter 2,291,500 gallons. 

 24" " 4,492,500 

 26" " 4,586,000 



Making a total of 11,370,000 imperial gallons flowing into the 

 city. This would give a consumption of 140 gallons per day per consumer on the 

 high and 477 gallons per consumer per day on the low service, or an average of 321 

 gallons per day per consumer, or taking the whole population of the city, an average 

 consumption of 277 gallons per capita per day. The figures given in the body of 

 the paper were conservatively estimated, and while startling enough, were consider- 

 ably below the actual results, which are unequalled by any other city of which the 

 writer has any knowledge. 



