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
Edmonton 1963
[Report of the Medical Officer of Health for Edmonton]
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TO THE BOROUGH OF EDMONTON FOR THE YEAR 1963.
| Hard ness (non carbonate) | PH Value | Phosphate as P04 | Silicate as Si02 | Surface Active Material as Manoxol OT | Sulphate as so4 | Natural Fluoride as F. | Magnesium as Mg. | Sodium as Na | Potassium as K | Elect rical Conductivity Micromhos |
|---|---|---|---|---|---|---|---|---|---|---|
| 70 | 7.8 | 1.1 | 12 | - | - | - | - | - | - | 620 |
| 68 | 7.9 | 1.0 | 11 | - | - | - | - | - | - | 620 |
| 68 | 7.9 | 1.3 | 12 | 0.07 | 60 | 0.30 | 5 | 25 | 5.2 | 570 |
| 56 | 7.4 | - | - | - | - | - | - | 20 | 6.3 | 530 |
WATER EXAMINATION DEPARTMENT
| AFTER TREATMENT | |||||
|---|---|---|---|---|---|
| Number of Samples | Agar plate count per ml. | Coliform count | E. coli count | ||
| 20-24 hours at 37°C | 3 days at 22°C | Per cent samples negative in 100 ml. | Per cent samples negative in 100 ml. | ||
| 256 | 3.9 | 100.0 | 100.0 | ||
| 256 | 5.0 | 100.0 | 100.0 | ||
| 1,930 | 14.4 | 99.43 | 99.43 | ||
| 69 | 0.1 | 4 | 100.0 | 100.0 | |
JVO.