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
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. | ||||||||||||||||||
| 18 | Evesham | p. | 4 | 1 to 4 | 20,000 | ... | ... | 3.5 | Slag ¼ inch to 1¼ inch. | Mixed | Perforated pipes | £ | s. | d. | £ | s. | d. | £ | s. | d. |
| 1,000 (filling only) | 4,600 | |||||||||||||||||||
| 19 Glasgow | 4 | First contact beds | 3,594 | 325 | E ngine ashes, 1/4 inch mesh | 9 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 sides | The 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. | |||||||||||||||||||
| 4 | Second contact beds | 3,582 | • •• | 3-25 | ,, 1/8 ,, | 2 ft. | ||||||||||||||
| (total) | ,,¼ ,, | 7 in. | ||||||||||||||||||
| ,, ½ ,, | 8 in. | |||||||||||||||||||
| 20 | Haslingden, Rawten-stall and Bacup | P. T. | 16 | ... | ... | 45 x 30 | • • • | 3 | Fine clinker | 6 in. | 4 in. drain tiles surrounded with burnt ballast | 5,800 | - | - | ||||||
| Coarse and fine coke | 14 in. | |||||||||||||||||||
| Burnt ballast and aerating pipes | 4 in. | |||||||||||||||||||
| Coarse coke | 8 in. | |||||||||||||||||||
| Burnt ballast and 4 j,nch | 4 in. | |||||||||||||||||||
| drain pipes. | ||||||||||||||||||||
| 21 | Hey wood | • T. | Afterwards the 6 inches of fine clinker were replaced by 1 foot of coarse clinker | |||||||||||||||||
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