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

Paddington 1885

[Report of the Medical Officer of Health for Paddington]

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Table: TABLE C.TABLE showing the efficiency of filtration of Thames and Lea water, also the maximum, minimum, and average proportions of organic impurity in the water delivered by the different Companies during the year 1883 :—

TABLE C.

TABLE showing the efficiency of filtration of Thames and Lea water, also the maximum, minimum, and average proportions of organic impurity in the water delivered by the different Companies during the year 1883 :—

Names of Companies and Sources.Number of occasions when clear and transparent.Number of occasions when slightly turbid.Number of occasions when turbid.Number of occasions when very turbid.Proportion of Organic Impurity.
Maximum.*Minimum.*Average.*
Thames.
West Middlesex120006.52.13.5
Grand Junction111007.11.23.6
Lambeth120005.72.13.2
Chelsea120005.41.63.2
Southwark120005.11.53.6
Lea.
New River120003.90.71.8
East London120005.61.73.2
Deep Wells.
Kent120000.80.20.5
Colne Valley110101.40.40.8
Tottenham120001.60.61.1

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* The average yearly amount of organic elements (organic carbon and organic
nitrogen) found in the water supplied by the Kent Company during the nine
years ending 1876 is, for purposes of comparison, taken as the unit.