[Report of the Medical Officer of Health for Lambeth Borough] page 56

Lambeth 1964

[Report of the Medical Officer of Health for Lambeth Borough]

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Table: Average Results of Chemical Examination Milligrammes per litre (unless otherwise stated)

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Average Results of Chemical Examination Milligrammes per litre (unless otherwise stated)

Description of the Sample	No. of Samples	Ammoniacal Nitrogen	Albuminoid Nitrogen	Nitrate Nitrogen	Chlorides as CI.	Oxygen abs. from KMnO4 4 hrs. at 27°C.
All Thames Derived	371	0.033	0.079	4.8	33	1.08
Honor Oak Well	1	0.054	0.012	NIL	15	0.16
Merton Well			Not in Supply
Description of the Sample	Turbity units	Colour (Burgess) scale	Hardness (total)	Hardness(non-carbonate)	pHvalue	Phosphateas PO4	Silicate as SiO2
All Thames Derived	0.2	11	270	64	7.6	1.4	8
Honor Oak Well	1.5	3	284	50	7.2
Merton Well			Not in Supply
Description of the Sample	Sulphate as SO4	Magnesium as Mg	Natural Fluoride as F	Surfaceactive material as Manoxol OT		Electrical Conductivity (micromhos)
All Thames Derived	60	5	0.25	0.09		550
Honor Oak Well			0.45			510
Merton Well		Not in Supply