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
Bromley 1950
[Report of the Medical Officer of Health for Bromley]
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| Shortlands Well | West Wickham Well | 1 Orpington Well | hames-derived filtered water (Walton) | |
|---|---|---|---|---|
| Number of samples | 4 | 4 | 3 | 241 |
| Ammoniacal Nitrogen | 0.004 | 0.001 | 0.007 | 0.018 |
| Albuminoid Nitrogen | 0.025 | 0.021 | 0.023 | 0.097 |
| Oxidised Nitrogen-Nitrate | 4.3 | 4.3 | 5.9 | 5.1 |
| Chlorides as Cl | 18.6 | 14.3 | 15.0 | 27.6 |
| Oxygen abs. from Permanganate 3 hrs. at 80' F | 0.13 | 0.05 | 0.09 | 1.32 |
| Turbidity in terms of Silica | - | - | - | 0.3 |
| Colour, m.m. brown 2 ft. tube, Burgess's Tintometer | 0 | 0 | 0 | 17 |
| Hardness (Total) | 298 | 272 | 276 | 260 |
| Hardness (Permanent) | 90 | 50 | 42 | 81 |
| pH Value | 7.2 | 7 3 | 7.4 | 7.8 |
| Phosphate as P.O. 111/4 | - | - | - | 0.39 |
| Silica | - | - | - | 11.0 |
| Conductivity | 475 | 425 | 475 | 450 |
| Bacteriological Results. | ||||
| No. of microbes per ml. Colonies counted on agar after 20-24 hours at 37' C | - | - | - | 15.3 |
| Bact. coli test: | ||||
| Percentage of samples negative to Bact. coli in 100 ml | 100.0 | 100.0 | 99.6 | 100.0 |
| Bact. coli per 100 ml | Nil. | Nil. | 0.004 | Nil. |
| Drainage and Sewerage. |
No new drainage schemes were undertaken during 1950,
except the provision of drains and sewers on the Housing Estates
being developed by the Corporation.
Cesspools.
No new premises were erected with cesspool drainage and no
alterations to the drainage system of any other properties on
cesspool drainage have been carried out.
Cesspool emptying is undertaken by the Borough Engineer's
Department upon the request of the householders. During the
year thirty individual cesspools were emptied by the Department.
Rivers, Streams and Lakes.
There were no works of improvement carried out during
the year.
Fourteen visits of inspection were made by the Sanitary
Inspectors.