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

Waltham Forest 1965

[Report of the Medical Officer of Health for Waltham Forest]

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Table: METROPOLITAN WATER BOARD - WATER EXAMINATION DEPARTMENTAVERAGE RESULTS OF THE CHEMICAL EXAMINATION OF WATER SUPPLIED TO THE LONDON BOROUGH OF WALTHAM FORESTMilligrammes per litre (unless otherwise stated)

METROPOLITAN WATER BOARD - WATER EXAMINATION DEPARTMENT

AVERAGE RESULTS OF THE CHEMICAL EXAMINATION OF WATER SUPPLIED TO THE LONDON BOROUGH OF WALTHAM FOREST

Milligrammes per litre (unless otherwise stated)

Description of the SampleNumber of Samples Day of the monthAmmoniacal NitrogenAlbuminoid NitrogenNitrate NitrogenOxygen abs. from, KMn04 4 hrs. at 27°. C.B.O.D. 5 days at 20°. C.Hardness (total) CaC03Hardness (non-carbonate) CaC03Magnesium as Mg  Chloride as CIPhosphate as P04Silicate as Si02Sulphate as S04Natural Fluoride as FSurface-active material as Manoxol OT Turbidity unitsColour (Burgess units)pH valueElectrical Conductivity (micromhos)
(1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21)(22)(23)
Lee Bridge (Lee-derived)                      
520.0280.1155.61.52 314987  533.411980.250.15 0.4197.8680
Ferry Lane480.0780.0903.61.20 31080   492.813 0.65  0.3157.5680
Chingford Mill40.200.0450.20.38 27048   29   0.5  0.227.3520