View report page

10
Sewerage
The vast majority of premises in the district are drained
to the public sewers which in turn discharge to the deep
sewers of the West Middlesex Main Drainage Department,
the sewage being dealt with at the Mogden Works by that
Department. During the year the Engineer and Surveyor
constructed 750 yards of 9" sewer in Hatton Road, eliminating
a small pumping station and providing main drainage
for a number of premises served by cesspools. He now has
in hand plans for a new sewer to serve the High Street area,
at present being redeveloped.
Water Analysis
The Bedfont and Feltham Wards of the District were
supplied by the South-West Suburban Water Company and
the Hanworth Ward by the Metropolitan Water Board and
the water was derived from the River Thames. The SouthWest
Suburban Water Company treated the water at their
Staines works and 35 raw water and 614 treated water
samples were taken for bacteriological and chemical analysis.
A typical analysis is given in table I. Twenty-seven of
the treated samples contained coliform bacteria in minimal
numbers and two of these presumptive positive samples were
found to contain E. Coli. As several of these samples were
from service reservoirs, sterilisation was carried out as a
precaution although actual contamination was thought to
be extremely unlikely, and this sterilisation is now repeated
at regular intervals.
The Metropolitan Water Board stored the raw water in
their Thames Valley reservoirs and filtered and chlorinated
it at the Hampton, Ashford Common, Hanworth Road and
Kempton Park Works. Samples were taken at each of the
works including 1,121 at Hampton. Details of the average
results obtained are given in table II.
The water supply was satisfactory both as regards to
quantity and quality and it had no plumbo-solvent action.
Four check samples were taken by the department.
All houses in the area were supplied direct from the
water mains.