Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
[Report of the Medical Officer of Health for London County Council]
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Name or number of tank. | Dates between which the tank was in use. | Length of tame during which the tank was used. | Rate of flow of sewage through the tank. | Quantity of sewage passed into the tank. | Quantity of sludge left in the tank. | Percentage of moisture in the sludge left in the tank. | Percentage reduction in the amount of sludge effected by septic action. | ||
Weeks. | Gallons per day. | Gallons. | Tons. | ||||||
11 | Burslem | ||||||||
12 | Bury | ||||||||
13 | Cambridge | ||||||||
14 | Carlisle | ||||||||
15 | Croydon | ||||||||
16 | Darwen | ||||||||
17 | Epsom |