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 1942
[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 the deep wells in the chalk of the Sutton District Water
Company, situated at Sutton, Cheam and Woodmansterne. A
small area in the North Ward is supplied by the Metropolitan
Water Board.
The Water from all the wells of the Sutton District
Water Company is softened to 9 degress of hardness. Chlorine
is applied in the form of chloramine as a protective measure.
Samples 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, and below is the average of monthly analyses:-
| Total solid residue dried at 180° C. | Ammonia, free. | Ammonia, Albuminoid. | Nitrogenx as Nitrates. | Nitrogen as Nitrites. | Oxygen absorbed in 4 hours at 27° C, | Chlorine (in chlorides) | Hardness total (soap test) | No. of Bacteria growing on Agar per c.c. for 3 days at 20 C. | No. of Bacteria growing on Agar per c.c. for 1 day at 370 c. | Presence of Bacillus Coli in 100 c.c. | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Average | 18.5 | .0123 | .0002 | .9145 | 0 | .0045 | 1.818 | 7.9 | 2.18 | .09 | 0 |
(6b)