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40
DRAINAGE AND SEWAGE DISPOSAL
The soil sewage from the Borough flows to the West Middlesex
Drainage Works at Mogden as it has done since 1936 when the last of
the five disposal works in the area went out of use.
There are still, however, a few properties in the northern part of the
district from which the sewage is treated in small disposal plants, otherwise
all the properties within the Borough are connected to the main
drainage system.
Surface water is disposed of by way of separate sewers that
discharge into local water courses. There are five of these; the River
Pinn; the Yeading Brook; the Kenton Brook; the Wealdstone Brook and
the Edgware Brook.
The rate of flow in these water courses varies with the amount of
rain fall and during sudden storms they may have to carry very large
volumes of water, while during drought the flow may be reduced to a
mere trickle.
One of the problems arising from these water courses is the pollution
that is caused by foul water being diverted into the surface water drains
of properties which happens when waste pipes from sinks, baths and
lavatory basins are connected to rain water down pipes. Many such
waste pipes were found and dealt with during the year.
PUBLIC CLEANSING
The cleansing services are under the administration and control of
the Borough Surveyor.
The weekly collection service provided in the district is undertaken
by direct labour and involves the handling of over 82,000 bins. There
was no change in the method of disposal during the year, the collected
refuse being conveyed to Harefield where it was disposed of by tipping.
SWIMMING BATHS
There are two open-air swimming baths in the district, one at Charles
Crescent, Honeybun Estate, Harrow, and the other at Christchurch
Avenue, Wealdstone. The former, constructed in 1923, measures 165 feet
by seventy-five feet with a depth of seven feet to three feet six inches.
The water, after being filtered, is treated by chlorination. Dressing
accommodation, shower and foot baths and sanitary conveniences are
provided. The Wealdstone bath, constructed in 1934, measures 165 feet
by seventy-five feet, with a depth of eight feet six inches to two feet six
inches; in addition, there is a shallow semi-circular beginners' pool.
Suitable dressing accommodation, with shower and foot baths, and sanitary
conveniences, are provided. The water is treated by passing through
filters and is then chlorinated by the break-point method.