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
Sutton and Cheam 1944
[Report of the Medical Officer of Health for Sutton and Cheam]
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SANITARY CIRCUMSTANCES OF THE AREA
WATER SUPPLY The water supply is mainly derived
from trie' deep wells in the chalk of the Sutton District Water
Company, situated at Sutton, Cheam and Woodmansterne. A
small area in the North Yard is supplied by the Metropolitan
Water Board.
The Water from all wells of the Sutton District Water
Company is softened to 9 degrees of hardness. Chlorine is
applied in the form of chloramine as a protective measure.
Samples of the raw and treated waters are examined daily by
the Company's chemist and bacteriologist in the laboratory
at the Sutton works. Samples are also examined at monthly
intervals by the Company's Consultant Analyst, and monthly
samples are examined in rotation by the District Councils in
the area of supply.
The supply from all sources has been satisfactory in
quality and quantity. All the dwelling houses have a direct
supply from the public mains.
Below is the average of monthly analyses.
| Average | ||
|---|---|---|
| Total solid residue dried at 180° C. | 17.45 | |
| Ammonia, free | 0.0103 | |
| Ammonia, Albuminoid | 0 | |
| Nitrogen as Nitrates | 0.87 | |
| Nitrogen as Nitrites | 0 | |
| Oxygen absorbed in 4 hours at 27° C. | 0.004 | |
| Chlorine (in chlorides) | 1.79 | |
| Hardness total (soap test) | 7.6 | |
| No. of Bacteria growing on Agar per c.c. for 3 days at 20° C. | 2.18 | |
| No. of Bacteria growing on Agar per c.c. for 1 day at 37° C. | 0.09 | |
| Presence of Bacillus Coli in 100 c.c. | 0 | |
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