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34
As I indicated in my last report, pressure of other
work which, during the past year, has become more and
more severe, has compelled me reluctantly to ask to be
relieved of these voluntary duties. Certain difficulties,
however, have arisen which prevented the transfer and I
agreed to carry on until these could be surmounted.
SANITARY CIRCUMSTANCES OF THE AREA.
WATER SUPPLY.
The drinking water for the district is supplied by the
Metropolitan Water Board and consists of Thames derived
stored water, filtered and terminally chlorinated. On every
working day the raw water, general well and main waters
leaving the works are subjected to full chemical and
bacteriological tests by the Board's Director of Water
Examinations and the results of such tests have shown the
last-mentioned waters to be invariably of first class quality.
In addition each individual filter is tested bacteriologically
in daily sequence, and appropriate biological, chemical and
bacteriological tests are regularly made on all reservoir
waters.
BEVERLEY BROOK AND HOGSMILL RIVER.
During the year samples of water were taken from
Beverley Brook and Hogsmill River and submitted for
analysis.
The Analyst's report on the sample from the Beverley
Brook stated:—
"This, judged as a stream water, is very bad indeed.
Suspended solids and rate of absorbtion of dissolved
oxygen are very largely in excess of the Royal Commission's
general standard for neat sewage effluent."
Representations were made hereon to a neighbouring
authority and the reply indicated that the matter was
being treated as one of urgency and that the utmost
expedition was being used in the preparations of plans for