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
Lambeth 1970
[Report of the Medical Officer of Health for Lambeth Borough]
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Average Results of the Chemical Examination of Water Supplied to the London Borough of Lambeth during 1970 Milligrammes per litre (unless otherwise stated)
| Description of the Sample (1) | Number of Samples Day of the month (2) | Ammoniacal Nitrogen (3) | Albuminoid Nitrogen (4) | Nitrate Nitrogen (5) | Oxygen abs. from KMn04 4 hrs at 27°C. (6) | B.O.D. 5 days at 20°C. (7) |
|---|---|---|---|---|---|---|
| River Thames -derived | 363 | 0.026 | 0.083 | 4.8 | 1.02 | |
| Honor Oak | 4 | 0.045 | 0.015 | 0.3 | 0.07 | |
| Marton Abbey | 3 | 0.015 | 0.021 | 0.8 | 0.12 | |
| Description of the Sample | Hardness (total) CaCO3 (8) | Hardness (non-carbonate) CaC03 (9) | Magnesium as Mg (10) | Sodium as Na (11) | Potassium as K (12) | Chloride as CI (13) |
| River Thames -derived | 274 | 79 | 5 | 27.7 | 5.6 | 40 |
| Honor Oak | 306 | 51 | 15 | |||
| Marton Abbey | 244 | 22 | 16 | |||
| Description of the Sample | Phosphate as P04 (14) | Silicate as Si02 (15) | Sulphate as SO4 (16) | Natural Fluoride as F (17) | Surface-active Material as Manoxol OT (18) | (19) |
| River Thames -derived | 2.7 | 9 | 70 | 0.20 | 0.03 | |
| Honor Oak | 0.50 | |||||
| Marton Abbey | 0.05 | |||||
| Description of the Sample | Turbidity units (20) | Colour (Burgess units) (21) | PH value (22) | Electrical Conductivity (micromhos) (23) | ||
| River Thames -derived | 0.1 | 11 | 7.9 | 570 | ||
| Honor Oak | 0.4 | 5 | 7.4 | 520 | ||
| Merton Abbey | 0.3 | 6 | 7.3 | 480 |