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
Lambeth 1962
[Report of the Medical Officer of Health for Lambeth Borough]
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Bacteriological Results-Yearly Averages, 1962
| Source of supply | BEFORE TREATMENT | ||||||
|---|---|---|---|---|---|---|---|
| Number ofsamples | Agar plate count per ml. | Coliform count | Escherichia coli count | ||||
| 20-24 hoursat37°C. | 3 daysat 22°0. | Per cent. samples negative in 100 ml. | Countper 100 ml. | Per cent. samples negativein100 ml. | Count per 100 ml. | ||
| River Thames Southern Group | |||||||
| Honor Oak | 48 | 0.1 | 1 | 97.92 | | 97.92 | - |
Source of supply
AFTER TREATMENT
Number
of
samples
Afar plate
count par ml.
Coliform
count
E. coli
count
20-24
hours
at
370C.
3 days
at
220C.
Per cent,
samples
negative
100 ml
Per cent,
samples
legative
in
100 ml.
River Thames
Southern Group 1,889 11.5 99.79 99.95
Honor Oak 50 13 4 100.0 100.0