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 1881

[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 year1881.

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 year1881.

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. 1Average. *
Thames.
West Middlesex93006.52.34.2
Grand Junction57006.42.43.8
Lambeth92106.02.24.1
Chelsea75006.82.33.9
Southwark111007.12.84.5
Lea.
New River102006.61.62 .9
East London102005.32.23.4
Deep Wells.
Kent120001.91.31.6
Colne Valley120001.71.11.5
Tottenham120002.71.41.9

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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.