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

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Tottenham 1962

[Report of the Medical Officer of Health for Tottenham]

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AVERAGE RESULTS OF THE CHEMICAL AND BACTERIOLOGICAL EXAMINATION OF THE WATER SUPPLIED TO THE BOROUGH OF TOTTENHAM FOR THE YEAR 1962

(Milligrams per litre (unless otherwise stated))

Description of the SampleNo. of samplesAmmonia NitrogenAlbuminoid NitrogenOxidised Nitrogen (Nitrate)Chlorides as C1Oxygen abs. from Permanganate 4 hrs. at 27°CTurbidity UnitsColour m.m. brown 2 ft. Tube Burgess's TintometerHardness (Total)Hardness (non-carbonate)pH ValuePhosphate as PO4Silicate as SiO2Sulphate as SO4Fluoride as FMagnesium asMg.Surface Active Material as ManoxolFree CO 2Electrical Conductivity (gemmhos)
New River derived1040.0430.0585.5380.580.17302647.90.7011630.2560.10630
Park well10,0860.0300.3260.280.14252477.3510

BACTERIOLOGICAL RESULTS - YEARLY AVERAGES, 1962

BEFORE TREATMENTAFTER TREATMENT
Number of samplesAgar plate count per ml.Coliform countEscherichia coli countAgar plate count per ml.Coliform countEscherichia coli count
20-24 hours at 37°C.3 days at 22°C.Per cent samples negative in 100 ml.Count per 100 ml.Per cent samples negative in 100 ml.Count per 100 ml.Number of samples20-24 hours at 37°C.3 days at 22°C.Per cent samples negative in 100 ml.Per cent smples negative in 100 ml.
New River derived5127.0-100.0100.0
Park well660.73683.360.595.450.2680,46100.0100.0