84 IIAIJI'AX WATKK WOFIKS. — JOHNSTON. 



of the department was |)laiinc(l and executed. To them is due 

 the credit of cstabHshiiig the woi-ks as we liavc them to-day, 

 and if unsatisfactory it is through nu fault that ea'n be attached 

 to the plans that were adopted, but rather through the neglect of 

 enforcing stringent ordiiiances, the necessity for which I am 

 informed ^vas repeatedly urged upon the council by the board.'' 

 Srace 1872 the works have been under the control of the board 

 of Avorks and managed by the city engineer of the city of 

 Halifax. 



As may be gathered ivum the foregoing history of the works^ 

 the district supplied by the Long and (^hain Lakes lies at an 

 elevation below 150 feet above mean low tide, and that sup- 

 plied by rJic Spruce 11111 Lake system above this elevation. The 

 fo liner is called the low service district and the latter the high, 

 lioth are supplied by gravitation. One of the «Teat diliiculti(?s 

 in connection \vith the high service shortly after its intro- 

 duction, was the constant and urgent demand of the consumers 

 near the higher levels of the low service district, as the pressure 

 became lower through the increased co'nsumption for the letting 

 down of this service to the lower levels. While this was com- 

 batted strongly by the conunissioners and subsequently by the 

 city engineer, it was frecpiently done, and greatly impaired the 

 efficiency of the high service system. However, since the intro- 

 duction of the 27-i'iich low service main the supnlv has been 

 kept back nearer its proper leveL \\ jjresent the lowest jwints 

 supplied by the high service arc ihe \'ictoria General Hospital 

 and poor house, where the ground is at an elevation of 100 feet, 

 and on Uniacke Street, at an elevation of 120 feet. 



fjOW Scrricc (Idflicrina (IrouHds (uid SfoiuKjc llcscrroirs. 



The water shed of the low service system comprises an area 

 of 4,455 acres, including the lakes — 904 acres in the Chain 

 Lakes and 3,551 acres in the Long l^ake gathering gi'ounds, the 

 water area in the former being 97 acres and in the latter 459 

 acres. Induded in the Chain Lakes water shed is Baver's Lake 



