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
Kensington 1938
[Report of the Medical Officer of Health for Kensington Borough]
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(iv) Samples collected from premises of D.
| 10 th January, 1938. | 9th March, 1938. | 9th June,1938. | 5th October, 1938. No. 1. | 5th October, 1938. No. 2. | 30th January,1939. | |
|---|---|---|---|---|---|---|
| Free ammonia | * 0.056 | * 0.08 | t 0.08 | * 0.06 | * 0.06 | |
| Albuminoid ammonia | Nil | Nil | Trace | Nil | Nil | Trace |
| Nitrogen as nitrites | Nil | Nil | Nil | Nil | Nil | Nil |
| ,, „ nitrates | Nil | Trace | Trace | Trace | Trace | Trace |
| Chlorine as chlorides | 16.0 | 16.0 | 15.9 | 16.5 | 16.0 | 15.7 |
| Total solids | 86.0 | 82.0 | 85.0 | 86.0 | 85.0 | 85.0 |
| Oxygen absorbed in 3 mins. | 0.01 | 0.009 | 0.009 | 0.003 | 0.003 | 0.003 |
| >> ,, ,, 4 hours | 0.025 | 0.016 | 0.11 | 0.006 | 0.01 | 0.018 |
| Poisonous metals | Nil | Nil | Nil | Nil | Nil | Nil |
* These samples are free from contamination and fit for drinking and all domestic purposes,
t This sample was distinctly opalescent and only of medium purity.
J This sample contained an excess of free ammonia, but in the absenoe of other evidence the sample
cannot be regarded as a polluted one.
| Date. | Organisms per ml. incubated on agar after 2 days at 37°C. | Organisms per ml. incubated in gelatine after 3 days at 20°C. | |
|---|---|---|---|
| Samples collected at the premises of A | 9-1-38 | Nil | Nil |
| 9-1-38 | 1 | 1 | |
| 9-1-38 | 1 | 1 | |
| 9-1-38 | Nil. | Nil. | |
| 9-1-38 | Nil. | Nil. | |
| 9-1-38 | Nil. | Nil. | |
| 9-1-38 | Nil. | Nil. | |
| 9-1-38 | Nil. | Nil. | |
| 9-3-38 | 32 | 20 | |
| 9-3-38 | 299 | 60 | |
| 9-6-38 | 33 | 34 | |
| 5-10-38 | 1 | 1 | |
| 30-1-39 | 2,560 | Nil. | |
| Samples collected at the premises of B ... | 9-1-38 | Nil. | Nil. |
| 9-1-38 | 1 | Nil. | |
| 9-1-38 | 4 | Nil. | |
| 9-3-38 | 29 | 2 | |
| 9-6-38 | 6 | 77 | |
| 5-10-38 | 20 | 3 | |
| 30-1-39 | 25 | Nil. | |
| Samples collected at the premises of C ... | 9-6-38 | 5 | 1 |
| 5-10-38 | Nil. | Nil. | |
| 30-1-39 | 14 | Nil. | |
| Samples collected at the premises of D ... | 18-1-38 | 66 | 448 |
| 9-3-38 | 510 | 100 | |
| 9-3-38 | 8,448 | 5 | |
| 9-6-38 | 8 | 8 | |
| 5-10-38 | 17 | 4 | |
| 5-10-38 | 28 | 7 | |
| 30-1-39 | 6 | Nil. |
No B. coli, streptococcus faecalis, or B. Welchii was found in any of the above samples.
In addition to the above samples, others have been taken by the owners of the wells aud, with the
exception of two which indicated slight contamination, submitted by the owner of the weh at
premises D, all the results were satisfactory.