View report page

99
There are also seven swimming baths with treatment plants
at primary schools, an additional three having been constructed
this year. Bacteriological samples were taken on 41 occasions
and these have in the main been satisfactory with the exception
of one bath where a defect in the chlorinator gave rise in
early summer to bacterial contamination.
A small coliform count has been recorded at the majority of
other baths on occasion and all these instances could be attributed
to insufficient chlorination.
All school baths were kept under constant observation,
advice was given where necessary and the overall standard maintained
was satisfactory.
3. RIVERS AND STREAMS
The River Thames forms the western boundary of the Borough and
is under the control of the Thames Conservancy Board. The Hogsmill
River, a tributary of the Thames, for some two miles forms
the eastern "boundary and thence flows through the Borough. In
dry weather a considerable portion of the flow of this river comprises
the effluent from the Hogsmill Valley Sewage Treatment Works.
The Beverley Brook, another tributary of the Thames, forms part of
the eastern boundary and receives the effluent of the Worcester Park
Sewage Disposal Works.
4. DRAINAGE AND SEWERAGE.
With the exception of a small quantity which is discharged
to the sewage disposal works of the London Borough of Sutton at
Worcester Park and to the Greater London Council Wandle Valley
Works, the sewage of the district is treated at the Hogsmill
Valley Sewage Treatment Works. This modern plant also deals
with the sewage from the Borough of Epsom & Ewell.
There are a few houses which use cesspools, but the remaining
houses in the Borough are connected to the main sewage system.
5. PUBLIC CLEANSING.
The Borough Engineer and Surveyor is responsible for the
collection and delivery of refuse to a central loading point
whence it is hauled in large vehicles to tips operated by contractors
employed by the Greater London Council, who are now
responsible for the disposal of refuse.
The total amount of refuse passing over the weighbridge
during the year ended 31st December, 1967 was 43,700 tons.