London's Pulse: Medical Officer of Health reports 1848-1972
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Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
Hornsey 1946
[Report of the Medical Officer of Health for Hornsey, Borough of]
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SANITARY CIRCUMSTANCES OF THE
WATER SUPPLY
The water supply for Hornsey is provided by the Metropolitan
Water Board.
During 1946 the supply has been satisfactory in quality and
quantity.
Hornsey is supplied from two sources -
(a) Water from the New River, treated at the Board's
filtration works at Stoke Newington, and
(b) River Themes 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
at each stage of the purification process and tests include
physical, chemical and microbiological 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
bacteriologicallv to ensure efficient disinfection.
Result s of Boctcriclogical Tests
| No. of samples | Colony Count On Ager at 37° | % of Semples negative 100 nil | Bact. coli per 100 ml. | |
|---|---|---|---|---|
| River Themes (Kempton Park) | 819 | 17.4 | 99.0 | .016 |
| Hew River (Stoke Newington) | 318 | 8.6 | 98.1 | .031 |
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