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

Southwark 1969

[Report of the Medical Officer of Health for Southwark, Borough of]

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Table: WATER EXAMINATION DEPARTMENTEXAMINATION OF WATER SUPPLIED TO OF SOUTHWARK(unless otherwise stated)

WATER EXAMINATION DEPARTMENT

EXAMINATION OF WATER SUPPLIED TO OF SOUTHWARK

(unless otherwise stated)

Sodium as NaPotassium KChloride as C1Phosphate asP04Silicate as SiOjSulphate as S04Natural Fluoride as FSurface active material as Manoxol OTTurbidity unitsColour (Burgess units)PH valueElectrical Conductivity (micromhos)
(11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21)(22)(23)
24.05.4322.19580.250.020.1117.9550
170.500.597.3480
730.500.447.4430

Table: - YEARLY AVERAGESBorough of Southwark

- YEARLY AVERAGESBorough of Southwark

AFTER TREATMENT
Escherichia coli countAgar plate count per ml.Coliform countE. coli count
Per cent. samples negative in 100 ml.Count per 100 ml.Number of samples20-24 hours at 37°C.3 days at 22°C.Per cent, samples negative in 100 ml.Per cent, samples negative in 100 ml.
53.977.03,69812.9_99.89100.0
100.0-810.111100.0100.0
100.0-190.22100.0100.0