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Clay, with occasional patches of plastic clay and gravel,'and at Harefield an outcrop
of chalk.
Population.
The estimated population is 10,160 for the whole district. This figure includes
the number estimated for the Uxbridge Poor Law Institution, but does not include
the members of the Royal Air Force quartered in that part of the depot which is
within the Rural District Boundary.
COWLEY 1,035
WEST DRAYTON 1,860
HAREFIELD 2,855
HILLINGDON EAST 3,160
ICKENHAM 450
NORTHOLT 800
The working-class population are chiefly engaged in Agriculture, Factory, and
small business pursuits. There are a number of factories in the district, e.g., Asbestos
Works, Furniture Factories, Cardboard and Cement Factory.
B.—SANITARY CIRCUMSTANCES OF THE DISTRICT.
Water Supply.
The Rickmansworth and Uxbridge Valley Water Company supplies Hillingdon
East, West Drayton, Cowley, Harefield, Ickenham and part of Northolt. The water
is of good quality, though hard, and no complaints have been received this year as
to its taste.
The Colne Valley Water Company supplies part of Northolt. In Harefield and
Ickenham are still many wells, which are always liable to pollution, and several
of these have been condemned and the houses supplied off the main. Still more
will have to be condemned in the near future.
Rivers and Streams.
No pollutions of thesa have been reported during the year, and their condition
is at the present time good.
Drainage and Sewerage.
Hillingdon East, Cowley, and West Drayton are drained by a Sewage system
to the Works at Cowley Peachey, which are now worked by the Joint Drainage
Committee, and I have received no complaints this year as to defects or smells.