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gallons daily. The water is raised to the surface by lift-pumps,
and forced into the mains by three-throw plunger-pumps,
worked by two rotative beam-engines. The steam is generated
by six Cornish boilers. No. 2 engine pumps to the highlevel
reservoir at Woolwich Common, and No. 3 to Plumstead
and Woolwich. The well No. 1 is now not used. The pumping
arrangements consist of a lift-pump and a direct acting forcepump,
worked by a horizontal engine. The united horse-power of
the three engines is 186 (nominal).
Dover Road, Shooter s Hill.—There is a pumping station
here. A pair of 24 horse-power horizontal engines work direct
acting force-pumps for the supply of Shooter's Hill. Some of the
water passes through a standpipe situated on the summit of the
hill, and of which the highest point is about 470 feet above
ordnance datum. The engines are worked for about six hours a
day.
Cotistitulion Hill, Shooter s Hill.—There is a reservoir here,
covered with brick arches, capable, theoretically, of holding
300,000 gallons, but it is not filled. It stands at a level of 320 ft.
above ordnance datum. The higher parts of Plumstead and
Abbey Wood are supplied from this source.
Fartiborough. The Farnborough station is situated 220 ft.
above ordnance datum, near Orpington railway station on the
South-Eastern Railway. The chalk is here about 30 ft. below the
ground level. There are two deep wells about 15 ft. apart, but
connected below by a gallery. The upper 30 ft. of the wells are
bricked, and there are iron cylinders below this level. When
visited on March 25th the water level was about 60 ft. below the
surface of the ground. Occasionally in summer the water level
is as low as 90 ft. below the surface. The average amount of
water pumped daily is from 2,500,000 to 3,000,000 gallons.
There are four engines and pumps at this station. A pair of
plunger-pumps, worked by a double-cylinder Cornish engine of
about 120 horse-power, pump water to Sidcup, Eltham, and
Woolwich. A piston and plunger pump (No. 1), worked by a
Cornish engine, pumps the water to Farnborough and Chislehurst.
A small engine of the Worthington type is used for pumping to