London's Pulse: Medical Officer of Health reports 1848-1972

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Kingston upon Thames 1971

[Report of the Medical Officer of Health for Kingston-upon-Thames]

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96
Results of the Chemical Examination of
Water supplied to Borough,
(in milligrammes per litre)
Number of Samples 364
Ammoniacal Nitrogen 0.029
Albuminoid Nitrogen 0.084
Nitrate Nitrogen 6.1
Oxygen abs. from KMn04 4 hrs. at 27°C. 1.04
Hardness (total) CaC03 281
Hardness (non-carbonate) CaC03 90
Magnesium as Mg 5
Sodium as Na 23.5
Potassium as K 5.1
Chloride as CI 34
Phosphate as P04 2.3
Silicate as Si02 10
Sulphate as S04 64
Natural Fluoride as F 0.15
Surface-active material as Manoxol OT 0.02
Turbidity units 0.1
Colour (Burgess units) 13
pH value 7.8
Electrical Conductivity (microhmess) 580