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WATER SUPPLY
I am indebted to Lt.-Col. E. F. W. Mackenzie, Director of Water
Examination of the Metropolitan Water Board, for the following
information.
The water supply for Hornsey has been satisfactory both in quality
and quantity during the year. It is provided by the Metropolitan Water
Board from two sources:—
(a) River Thames water stored in Littleton and Walton reservoirs
and treated at the Board's filtration works at Kempton Park,
Hampton and Walton.
(b) Water from the River Lea treated at the Board's filtration
works at Stoke Newington and Hornsey.
Samples are collected on five days in every week, or more often if
required, at each stage of the purification process and tests include
physical, chemical and mocro-biological examination.
The water supplied to this area is not plumbo-solvent.
All new and repaired mains are chlorinated before being restored to
use and samples of water from them are tested bacteriologically to
ensure that its quality is up to that normally supplied.
The water supply is in all cases direct to dwelling houses ; none is
supplied by means of a stand pipe.
Chemical Examination
245 samples of water were taken for chemical examination from the
Kempton Park, Hampton and Walton Works, 243 from Stoke Newington
and 240 from the Hornsey Works. All were found to be satisfactory.