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
Carshalton 1952
[Report of the Medical Officer of Health for Carshalton]
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Section C—Sanitary Circumstances.
Water Supply
The Sutton and District Water Company supplies water to the
whole district except to 170 dwellings in the extreme north which are
supplied by the Metropolitan Water Board. The source of supply is
normally from wells in the chalk at Sutton, Cheam and Woodmansterne,
but it can be augmented, if necessary, by the Metropolitan Water
Board, the Epsom and Ewell Corporation and the East Surrey Water
Company. The Company is under statutory obligation to soften to
t)° of hardness.
All dwellings have a piped supply from the mains. The finished water
is not plumbo-solvent.
Quality and quantity were satisfactory throughout the year. The
raw well water is subjected to chlorination and both the raw and
finished waters are submitted to bacteriological and chemical testing
by the Company's resident chemist, by independent analysts and by the
Public Health Departments of the Local Authorities in the supply area
on an agreed rota.
The following is a summary of the results of the tests carried out by the Company and are supplied by courtesy of the Engineer and Works Manager.
| Sample. | Total No. of Bacteriological Examinations. | Total No. of Full Chemical Analyses. | No. of Tests in which Coli Aerogenes Organisms were present in 100 ml. of Sample (excluding B. Coli 1 & 2). | No. of Tests in which B. coli were present in 100 ml. (Types 1 & 2.) | Total No. of Tests in wich Coli Aerogenes Organisms were present in 100 ml. o sample. | ||
|---|---|---|---|---|---|---|---|
| No. | % | No. | % | ||||
| Sutton Raw | 306 | 44 | 21 | 6.8 | 31 | 12.0 | 52 |
| Sutton Finished | 334 | 24 | 17 | 5.1 | 5 | 1.5 | 22 |
| Woodmansterne Raw | 307 | 31 | Nil | Nil | Nil | Nil | Nil |
| Woodmansterne Finished | 313 | 20 | 12 | 3.5 | 3 | 0.9 | 15 |
| Cheam | 312 | 47 | 5 | 1.0 | 7 | 2.3 | 12 |
| Reservoir | 221 | Nil | Nil | Nil | Nil | Nil | Nil |
| District (excluding new Main) | 273 | Nil | 6 | 2.2 | 3 | 1.1 | 9 |
| New Mains | 46 | Nil | 19 | 41 | Nil | Nil | 19 |
| TOTAL | 2,142 | 166 | |||||