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33
The Borough Engineer informs me that at the end of 1955 Part II of this reconstruction
was 40% complete and total completion has since been effected.
Approval has been received from the Ministry of Housing and Local Government
to the scheme to alleviate flooding in the area served by the Clapton
Station sewer, which includes the railway track by Clapton Station, part of
Upper Clapton Road, Cricketfield Road, Perron Road and Charnock Road,
LONDON COUNTY COUNCIL (GENERAL POWERS) ACT, 1953, The discharge of
trade effluents, etc., into sewers is regulated by the provisions of Part II of
this Act, which make it an offence for any person to cause or permit to enter
any sewer vested in a sewer authority-
(1) any matter likely to affect prejudicially the treatment and disposal
of sewage by the London County Council;
(2) any petroleum, petroleum spirit or carbide of calcium;
(3) (a) any matter which is likely to injure the sewer or to interfere
with the free flow of its contents;
(b) any matter (including any waste steam and any water or other
liquid of a higher temperature than 110° Fahr,) which either alone or
in combination with the contents of the sewer is dangerous or is the
cause of a nuisance or is, or is likely to be, injurious to the
health of persons entering the sewer.
The Act also requires the provision of inspection chambers or manholes in
drains discharging effluent from any trade premises; such inspection chambers
or manholes must be so constructed as to enable a person readily to obtain
samples of what is passing into the sewer. An officer of the sewer authority
is empowered to obtain a sample of any trade effluent,.
In certain circumstances a sewer authority may impose conditions with
respect to the discharge of trade effluents and may enter into agreements with
occupiers of trade premises with respect to the times, quantities, rates,
nature, treatment, etc. of trade effluents discharged or proposed to be discharged,
The occupiers of trade premises are required to give to the sewer
authority two months" written notice of proposals to discharge new or modified
trade effluents.
The Act defines "trade premises" as any premises used or intended to be
used for carrying on any trade or industry., and "trade effluent" as any liquid
either with or without particles of matter in suspension therein which is
wholly or in part produced in the course of any trade or industry carried on at
trade premises, and in relation to any trade premises any such liquid as afore
said which is so produced in the course of any trade or industry carried on at
those premises, but does not include domestic sewage.
Departmental responsibility for enforcing the provisions of this part of
the Act is divided as follows
(a) Public Health Committee (Public Health Department) provisions relating
to the nature or composition of trade effluents discharged into a
public sewer and the treatment thereof to eliminate harmful matter,
(b) Works and Open Spaces Committee (Borough Engineer and Surveyor' s
Department) provisions relating to the consent of the Council with regard
to the discharge of trade effluents into a public sewer, subject to conditions
as to times and rates of discharge and the maximum daily quantity
of effluents,
Sixteen samples of trade effluent were submitted to the Public Analyst and
six proved to be unsatisfactory. In one instance it was found on investiga
tion that the unsatisfactory discharge was direct into a London County Council
sewer and the matter was therefore referred to that authority for necessary
action. With regard to the remaining five unsatisfactory samples,, the
occupiers of the premises concerned were interviewed and took steps to remedy
the unsatisfactory nature of the discharge A further ten samples of trade
effluent were taken from a dairy premises following the complete blockage of
the drain. It was found that the blockage had been Caused by the formation of
chalk deposit arising from the use of excessively hard well water made alkaline