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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Table 1. • Particulars ok 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. | Measurement of the beds. | Depth of the beds. | 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. | |||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
At top. Feet. | At bottom. Feet. | |||||||||||||||||||
P.—Permanent. T.—Temporary. | Square feet. | Feet. | ||||||||||||||||||
26 | Leeds | No. 1 coarse bed | 5,580 | 90 x 65 | 88 x 63 | 5 | Coke, 3 inch and larger mesh | ... | 3 inch agricultural drain pipes, surrounded by large coke | £ | s. | d. | £ | s. | d. | £ | s. | d. | ||
2 fine bed | 5,580 | 100 x 61 | 99 x 51 | 6 | Coke, 3/16 inch to 1½ inch mesh | ... | ,, | |||||||||||||
3 coarse bed | 5,445 | ... | ... | 3 | Clinker, ½ inch to 1 inch mesh | ... | Partly drained by 3 inch pipes and coarse clinker | |||||||||||||
4 fine bed | 5,445 | ... | ... | 3 | Clinker, 3/16 inch to ½ inch mesh | ... | „ „ | |||||||||||||
5 coarse bed | 5,445 | ... | ... | 3 | Clinker, 1 inch to 2 inch mesh | ... | „ „ | |||||||||||||
6 fine bed | 5,445 | ... | ... | 3 | Clinker, 3/16 inch to ½ inch mesh | ... | „ „ | |||||||||||||
7 fine bed | 8,100 | ... | ... | 3.5 | Clinker, 5/8 inch to 1 inch mesh | ... | Not drained | |||||||||||||
8 fine bed | 4,320 | ... | ... | 3.5 | Clinker, 5/8 inch to 1 inch mesh | ... | 3 inch agricultural drain pipes | |||||||||||||
Whittaker No. 1 | ... | ... | ... | 10 | Clinker, 1 inch to 3 inch mesh | ... | 9 inch drain pipe in concrete | |||||||||||||
„ 2 | ... | ... | ... | 9.5 | Coke above 1½ inch mesh | 18 inch half-round drain pipes on concrete | ||||||||||||||
,, 2 ,, ,, | 1 foot | |||||||||||||||||||
1 continuous | 153 | 12 x 12 (about) | ... | 3.6 | Coke, coarsest available | • | ||||||||||||||
2 „ | ,, | ... | 2.6 | Coke, 1 inch to 1½ inch mesh | Afterwards" 1½ inch & upwards | 9 inch drain pipes | ||||||||||||||
3 „ | JJ | ,, | ... | 2.6 | Coke, about 5/8 inch mesh | |||||||||||||||
Ducat | 4356 | ... | ... | 10 | Clinker, 3/8 inch to 5/8 inch mesh |