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72
Additional to the examinations which are mentioned above, three samples were
submitted to the Public Health Laboratories for chemical and bacteriological
examination, and all three were found to be satisfactory.
Consumers continue to complain of the hardness of the water supplied.
Our examinations show the number of degrees of total hardness on Clark's Scale to
vary from 19 to 24. The Company point out that they are prepared to reduce the
hardness, provided consumers will suffer an increase in the charges.
It is the permanent hardness which fluctuates.
Supplies from local wells.—There are in the district seven wells, one of which is
operated by the Metropolitan Water Board with a yield of 1,000,000 gallons per
day.
Of the remaining wells, two are operated by a mineral water company for the
purposes of their business, and notwithstanding the fact that these two wells are
comparatively shallow and near the River Roding (to which I give special mention
on pages 73 and 74) they continue to yield a perfect water.
One deep well at factory premises is used for drinking purposes and again
yields a good water.
The three remaining wells are used for industrial purposes only.
Where well supplies are used for drinking purposes, arrangements have been
made for monthly examinations of the supplies.
2. RAINFALL.
The rainfall for the year ended 31st December, 1937 was 23.25 inches as
compared with 16.57 inches for the previous year.
Rain fell on 181 days in the year 1937.
3. DRAINAGE AND SEWERAGE.
The joint drainage arrangements between Ilford and Barking have functioned
satisfactorily during the year.