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39
Name of Company.
Estimated
Population In
1931.
Estimated
Daily
Supply
per head
in 1031.
Supp'y
required per
day.
Supply
available per
day.
New River 1,658,000 28.5 47,250,000 *56,500,000
East London 1,697,000 33.0 56,000,000 66,000,000
Chelsea 375,000 35.0 13,125,000 22,000,000
West Middlesex 959,187 28.0 26,857,236 24,500,000
Grand Junction 584,969 42.0 24,500,000 24,500,000
Lambeth 1,136,441 25.0 28,411,025 30,500,000
Southwark & Vauxhal 1,215,457 25.0 30.386,425 41,000,000
Kent 900,000 30.0 27,000,000 29,000,000
Total 8,526,054 29.73 253,529,686 294,000,000
* Deducting 330,000 gallons of unfiltered water from Hampstead Ponds.
The suggestions made by the Companies for extending
their works, and so augmenting the volume of distributable
water, may be stated as follows:—
(1) The abstraction of more water from the Thames
without providing storage. (2) The abstraction of more
water from the Thames and Lea with provision for storage.
(3) The abstract of water from gravel beds adjoining the
Thames. (4) The abstraction of more water from deep wells
in the chalk formation.
The report next proceeds to deal with the several suggestions
which were laid before the Commissioners as to the construction
of large storage reservoirs. Of the schemes submitted
that of Messrs. Hunter and Fraser was considered the best. It
was brought forward by Mr. W. Hunter, M. Inst., C.E., a
Director, and Mr. Alexander Frazer, M. Inst., C.E., the
Engineer of the Grand Junction Company. It consists in the
construction of nine reservoirs upon land in the neighbourhood
of Staines, at a spot only a few miles from the existing works of
the Company. The storage capacity was to be obtained by
excavating below the surface in almost flat ground, and forming
the material removed into banks so as to increase the depth.
By this combined process of sinking and raising a depth of 40