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
Kingston upon Thames 1972
[Report of the Medical Officer of Health for Kingston-upon-Thames]
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95
Results of the Chemical Examination of
Water supplied to the Borough
Number of samples 364
Ammoniacal Nitrogen 0.031
Albuminoid Nitrogen 0.069
Nitrate Nitrogen 6.9
Oxygen abs. from KMnO4 4 hrs. at 27°C 1.06
Hardness (total) CaCO3 274
Hardness (non-carbonate) CaO3 82
Magnesium as Mg 5.0
Sodium as Na 24.5
Potassium as K 5.5
Chloride as Cl 35
Phosphate as PO4 2.8
Silicate as SiO2 10
Sulphate as SO4 58
Natural Fluoride as F 0.15
Surface-active material as Manoxol OT 0.02
Turbidity units 0.1
Colour (Burgess units) 13
pH value 7.9
Electrical Conductivity (microhomes) 570