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NOTE ON SECTIONS IN THE LEA VALLEY
AT SOUTH TOTTENHAM.
EXPOSED DURING THE CONSTRUCTION OF THE NEW
RESERVOIRS OF THE EAST LONDON WATERWORKS
COMPANY.
By T. HAY WILSON.
By the kindness of Col. W. B. Bryan, the Company's
Engineer, Mr. T. V. Holmes and myself were in February last
(1897) enabled to examine those sections left exposed during the
construction of the large new Reservoirs, situated south of
Tottenham Station, with the Lea River on their western side, and
the G.E.R. Cambridge line on the east. The Lea bending here
to the N.E. bounds the northern end. The reservoir made about
two years ago is on the other side of the railway to the east, and
the older reservoirs lie to the E. by N. of the last named.
The surface consists of clayey Alluvium and the lower
layers of sand and gravel, forming the bottom of the reservoir.
Intermediate beds of peat, shells, and loam occur, changing
within a few yards. The average section where the peat occurs
may be taken as follows :—
Section at Reservoir in Lea Valley at South Tottenham,
A, Clay Alluvium ; B, Peat with Shells ; C, Grey Loam ; D, Sand and Gravel.