London's Pulse: Medical Officer of Health reports 1848-1972

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London County Council 1900

[Report of the Medical Officer of Health for London County Council]

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Table 5. Particulars as to the working of the Septic Tanks.

No.Name of town or district.Name or number of tank.Dates between which the tank was in use.Length of time 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 eludge left in the tank.Per rentage reduction in the amount of sludge effected by septie action.
"Weeks.Gallons per day.Gallons.Tons.
26Leedsl27 Feb....250,0001348078228
15 Aug....125,000million
21 Sept....250,000gallons
10 Dec.(End of experiment)
228 April...125,000...8338018
12 May...250,000
18 Dec....125,000
1900(End of experiment)
33 May...125,000...5868223
12 May...250,000
18 Dec....500,000
Nov.(End of experiment)
4, 5, 6, 7,12 June• ••2,000,000j (Tanks working in series)
4 Aug....
Closed tanks6 June...40,000