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2. Rivers and Streams.—The River Roding rises in The
Roothings, towards the centre of Essex, and is a tributary of the
Thames; it forms the western boundary of Ilford. The River
Roding is tidal to a point where the old bridle path crossed the
Golf Links. It is only navigable up to the bridge, at the High
Road. The Seven Kings Water is a brook, which rises at Chigwell,
runs through the centre of the district, and supplies the lakes
in Seven Kings Park, South Park, and Barking Recreation
Ground, and eventually finds its way to the Roding. Cran Brook
feeds the Valentines Lake and rises in the neighbourhood of
Tomswood Hill. Mayes Brook runs through the Chadwell portion
of the district, feeds the lake in Goodmayes Recreation
Ground and eventually finds its way to the Thames. Some difficulty
has been experienced in regard to the lakes in both South and
Valentines Parks, analyses of the water having shown that they
were unfit for bathing purposes, and it has been necessary to suspend
bathing. The lake in Valentines Park has a capacity of
7,617,578 gallons; the two lakes in South Park a combined
capacity of 3,630,24.3 gallons.
3. Drainage and Sewerage.—The Council have carried out
extensive works of sewerage and main drainage.
The Sewage Outfall Works comprise 18¾ acres of land, on
which are laid down:—
Screens 2 Detritus Tanks (covered).
5 Septic Tanks (covered) equal 2,500,000 gals.
2 Clinker Filters.
13 Single Contact Beds, each ¼ acre area.
3 Storm Water Filters, 2½ acres in total area.
Discharging effluent into Thames.
The Ilford district has four levels of sewers, the first being
by gravitation, which covers an area of 6,571 acres; the second,
that known as the "Roding Valley," which takes the sewage
from the Cranbrook and Loxford Wards (area 844 acres), is raised
from the low level at the Pumping Station adjoining the Baths
(into the high level or gravitation system) by means of four