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 1. Particulars of the Bacteria Beds.

No.Name of town or district.Nature of installation.Number of beds.Distinctive number or name of each bed.Average or working area of the beds. Square feet.Measurement of the beds.Depth of the beds. Feet.Material and size of the material of which the beds are composed.Thickness of each layer of material, arranged in their order in the beds, from the top downwards.Method of under-draining the beds.Actual or estimated cost of making the beds.Actual or estimated cost per acre of making the beds.Cost of treating sewage per million gallons.
P.—Permanent. T.—Temporary.At top. Feet.At bottom. Feet.
18Eveshamp.41 to 420,000......3.5Slag ¼ inch to 1¼ inch.MixedPerforated pipes£s.d.£s.d.£s.d.
1,000 (filling only)4,600
19 Glasgow4First contact beds3,594325E ngine ashes, 1/4 inch mesh9 in.Dry built brick drains, 9 inches by 9 inches in the centre of the bed and 4 inch field drain pipes laid diagonally from the centre to the sidesThe installation, which is merely experimental and on a very small scale cost £980. The original cost of the precipitation tanks which contain the beds is not taken into account.
^total),, ½ ,,1 ft. 9 in.
,, ¾ ,,9 in.
4Second contact beds3,582• ••3-25,, 1/8 ,,2 ft.
(total),,¼ ,,7 in.
,, ½ ,,8 in.
20Haslingden, Rawten-stall and BacupP. T.16......45 x 30• • •3Fine clinker6 in.4 in. drain tiles surrounded with burnt ballast5,800--
Coarse and fine coke14 in.
Burnt ballast and aerating pipes4 in.
Coarse coke8 in.
Burnt ballast and 4 j,nch4 in.
drain pipes.
21Hey wood• T.Afterwards the 6 inches of fine clinker were replaced by 1 foot of coarse clinker