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

West Ham 1897

[Report of the Medical Officer of Health for West Ham]

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Table: The bacterioscopic examination of the raw river waters, before and after storage, and of the supplies delivered by the various companies, yielded, after incubation, the under-mentioned results:—

The bacterioscopic examination of the raw river waters, before and after storage, and of the supplies delivered by the various companies, yielded, after incubation, the under-mentioned results:—

Number of Microbes per Cubic Centimetre.
Jan.Feb.MarchAprilMayJuneJulyAug.Sept.OctNov.
Raw and Stored Waters.
River Thames, at Hampton12,20039,96050,56011,5608,84010,3003,0202,4603,62016,7005,940
„ ,, after storage2,5403,4805801005408405006206602,240296
River Lea, at Angel Road16,32044,60064,00011,00011,24014,0003,7203,4004,7601,82011,320
,, after storagelost1,05016,5202,8601,2802,740—1,5601,4601,5003,280
Filtered River Waters, as Supplied.
New River General Filter—Well15818131410241214444840
East London Co.—Well No. 1.1289613618096343852448238
„ „ „ 2274132389228542216141018