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SEWERAGE
(a) The Longford Sewerage.
The scheme covers the installation of main drainage along the Old Bath
Road from the Peggy Bedford public house to Kings Bridge.
Until the advent of the scheme the whole of this area, which comprises
some 90 dwellings, was on Cesspit drainage.
The scheme is in two parts — the Duke of Northumberland's River
forms a barrier and the area to the West of this river could not drain by
gravity to the main sewer near the Peggy Bedford. The scheme is therefore
a gravity sewer, 9" diameter, draining the area to the east of the river
and a combined gravity and pumped system draining the area to the west.
The western section comprises 6" diameter gravity sewer bringing the sew
age from this area to a pump house sited behind the "White Horse" public
house. From this pump house a 4" diameter rising main carried the sewage
over the river discharging into the head manhole of the 9" diameter
gravity sewer.
The whole construction was made difficult by the very high ground
water table—most of the pipes were laid below the river level—and by the
nature of the ground, which was loose water beaiing gravel and in some
places running sand.
In all, 50 cesspools were done away with and ample provision was made
for all future development to be taken into the new system.
The gravity section to the east of the river has been operational since
November. 1961 and the whole scheme since early March of this year.
(b) General.
The only properties in the Urban District not yet connected to the
main drainage system are: —
(1) West Drayton Common — 18 houses.
(2) Stockley — 8 houses and 4 factories.
(3) Caravan Site — (a) Municipal Caravan Site
(West Drayton).
(b) Riverside Caravan Site
(West Drayton).
(c) Mayfield Caravan Site
(West Drayton).
(4) Harmondsworth Moor — 2 houses.
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