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WATER SUPPLY
The water supply for Hornsey is provided by the Metropolitan
Water Board.
The supply has been satisfactory both in quantity and quality during
the year.
Hornsey is supplied from two sources:—
(a) Water from the New River, treated at the Board's filtration
works at Hornsey, and Stoke Newington.
(b) River Thames water stored in Littleton Reservoir and treated
at the Board's filtration works at Kempton Park.
Water is pumped from these works into service reservoirs at Crouch
Hill.
Samples of water 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 microbiological examination.
The water supply 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
486 samples of New River water filtered at the Hornsey and Stoke
Newington Works and 244 samples of River Thames water filtered at
the Kempton Park works were chemically examined and found to be
satisfactory.
Bacteriological Results
Agar Colony Bact. coli Test
Count after Neg. Bact. coli Bact. coli
Filtration Works No. of 20-24 hrs. per 100 ml. per 100 ml.
Samples at 37° C.
Hornsey 257 7.9 100.0% nil
Stoke Newington 257 12.2 100.0% nil
Kempton Park 819 18.6 99.9% 0.002
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