Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
[Report of the Medical Officer of Health for Lambeth Borough]
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BEFORE TREATMENT | ||||||||
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Agar plate count per ml. | Coliform count | Escherichia coli count | ||||||
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Source of supply | Agar plate count per ml. | Coliform count | E. coli count | ||
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Number of samples | 20-24 hours at 37°C. | 3 days at 22°C. | Per cent, samples negative in 100ml. | Per cent, samples negative in 100ml. | |
Water from Wells
Samples of well water used by industrial or commercial undertakings are
examined both chemically and bacteriologically. During the year no unsatisfactory
reports were received.
Swimming Pools