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in the unlikely event of a major breakdown in the normal supply or in case
of war.
(See overleaf for analysis of water supplies)
SANITARY INSPECTION OF THE AREA.
The District Public Health Inspectors are responsible for the investigation
of all complaints in connection with premises within their areas
whether these be used as dwellings or for commercial or industrial purposes.
The greater portion of the work concerns dwellings as can be seen from the
summary of work done which follows, on page 17.
CONDITION OF THE RIVER THAMES.
From local observations the general condition of the river has continued
to improve.
Extract from the Annual Report of the Scientific Adviser of the London
County Council:
"A daily analysis is made of samples collected from midstream off both
L.C.C. sewage outfall works. A survey of the analytical results shows that by
comparison with conditions during the previous ten years, the condition of the
river was considerably worse in the upper reaches, but there was an appreciable
improvement in the middle river, off the outfalls and in the lower river.
The incidence of sulphides in water devoid of oxygen was the lowest recorded
since regular determinations of sulphide were started in 1953. Particularly
in view of the exceptionally low upland flow, this can only have been
due to the improved condition of the river.
A greatly improved effluent will next year be discharged from the new
Southern Outfall Plant and further improvement in the river condition is to be
expected. It must, however, be recorded that there is a tendency for a greater
pollution load to arrive at the Northern Outfall Works and without further
purification plant deterioration in the quality of the effluent from this station
is inevitable."
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