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The Thames model will also be utilised when required to
determine the periods of retention in the river of liquids
discharged at various places and states of the tide. When
Sir Joseph Bazalgette in 1874 built the London sewerage
system to remedy the polluted state of the river, it was confidently
stated that, if the outfall at Barking discharged on
the falling tide, the sewage effluent would leave London, never
to return. It is now known that discharges to the river
travel up and down the channel, only slowly progressing
towards the sea, and the Barking and Crossness outfalls flow
continuously day and night.
The aim of the Port of London Authority is to raise the
standard of cleanliness of the river until it is able to purify
the discharges made to it during their slow progress to the
sea."
D(11) Housing
D(11)a Inspection of Dwelling Houses during the year.
1. (a) Total number of dwelling houses inspected
for housing defects (under Public Health or
Housing Acts) 2,412
(b) Number of inspections made for the purpose 3,161
2. (a) Number of houses (included under sub-head
(1) above) which were recorded and inspected
under the Consolidated Housing Regulations
3
(b) Number of inspections made for the purpose 10
3. Number of houses found to be in a state so
dangerous or injurious to health as to be unfit
for human habitation 3
4. Number of houses (exclusive of those referred to
under the preceding sub-head) found not to
be in all respects reasonably fit for human
habitation 325
D(ll)b Remedy of defects during the year without service of
Formal Notices
Number of defective dwelling houses rendered fit in
consequence of informal action by the local
authority 318