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25. WATER SUPPLIES, SWIMMING BATHS AND SEWAGE DISPOSAL
Water Supplies
Four water undertakings supply the borough with mains water. The Colne Valley
Water Company supplies small parts of Perivale and Horsenden Wards. The
Rickmansworth and Uxbridge Valley Water Company supplies the remainder of Perivale
and Horsenden Wards, part of Waxlow Manor Ward and the whole of Ravenor, Mandeville
and West End Wards. The South West Surburban Water Company supplies the whole of
Dormers Wells and Northcote Wards, the remainder of Waxlow Manor Ward and part of
Glebe Ward. The Metropolitan Water Board supplies all other areas of the borough not
already mentioned.
These public supplies have been satisfactory in quality and quantity and are
not subject to plumbo-solvent action. Water from public mains was supplied to 90,067
dwellings with a mid-1967 estimated population of 302,570.
Private supplies are derived from wells at 11 factories in the borough. In these
factories water is obtained from deep borings ranging in depth from 300 to 600 feet.
Of 62 samples of water from these wells submitted for bacteriological and chemical
examination during the year 12 were found to be unsatisfactory and 3 doubtful. After
thorough cleansing and sterilization of supply pipes, repeat samples proved to be
sati sfactory.
As a result of complaints, 15 samples of tap water from public supplies were
taken but none proved unsatisfactory.

Swimming Baths
The Council has public swimming baths at Ealing, Acton, Southall and Northolt,
the last named being completed early this year.
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