[Report 1947] / Medical Officer of Health, Winchester R.D.C.

  • Winchester (England). Rural District Council.
Date:
1947
Catalogue details

Licence: Attribution 4.0 International (CC BY 4.0)

Credit: [Report 1947] / Medical Officer of Health, Winchester R.D.C. Source: Wellcome Collection.

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    BACTERIOLOGICAL EXAMINATION No. of colonies per m.l. capable of growing upon agar at 27deg. C in 2 days . 3 No. of colonies per m.l. capable of growing upon agar at 22deg. C in 2 days . 3 No. of colonies per m.l. capable of growing upon lactose Bile Salt agar in 2 days . None Probable number of coliform organisms present in 100 m.l. None Probable number of B. welchii and Faecal Coli per 100 m.l.]... None REMARKS: Chemically and bacteriologically satisfactory for a public supply. (Signed) H. LESLIE CRONK, County Medical Officer. Chemical and bacteriological analyses of the water supplied by the County Borough of Southampton and the City of Win¬ chester can be obtained by reference to the Annual Reports of the respective Medical Officers of Health. In addition, there are one or two estate supplies and a standpipe supply for the village of Owslebury. All sources of water supply in the District are derived from oeep wells sunk in the chalk strata. A certain quantity of water is extracted from the River Itchen by the Southampton Corporation and is subjected to a process of sedimentation (with the addition of sulphate of alumina) followed by filtration through rapid gravity^sand filter and finally sterilised by means of the “ Chloramine treatment. The water supply has been generally satisfactory in quality and quantity and free from plumbo-solvent action, although in the more rural part of the area some of the shallow wells tended to yield a limited and sedimentary supply during the dry periods. Two hundred and eighty-two additional houses have been supplied with Company’s water during the year and many agricultural cottages have been given a piped supply of water nom agricultural water schemes. Approximately seventy-one per cent, of the population are connected with the main supply and fifty-five per cent, of the dwelling houses. Samples of well water supplying 66 individual properties ^7ere examined during the year. Eight of these were found to be unsatisfactory for drinking purposes.