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46
Council's Surveyor, Mr. C. J. Jenkin. The new installation
consists of a coarse screen, detritus and Dortmund sludge
tanks in duplicate, an open septic tank, and two primary and
secondary percolating filter beds. The Public Health Committee
has had under consideration the extension of this
installation, so as to deal with the whole of the low level
sewage, and the Surveyor is now (March, 1908) preparing
the necessary particulars.
The outfall channel of the low level sewer has been
formed in such a way that all storm-water from four to six
times the average dry weather flow will be deflected on to the
storm-water beds, whilst any quantity over six times the dry
weather flow will be discharged direct into the brook. These
storm-water beds are four in number, constructed of clinker,
and intended to be used as percolating filters.
Disposal of House Refuse.
The Council contract for a weekly removal of all house
refuse. The refuse is burnt in the open on the Sewage Farm.
The question of adopting some better means of dealing with
the refuse is under consideration by the Public Health Committee.
A small charge, based on the estimated cost of removal,
is made for the removal of trade refuse.
Analyses Performed during the year.
The samples examined during the year included:—
A sample of the public water supply taken each month.
The samples were drawn from standpipes in various parts of
the District, and on chemical analysis were found to conform
in each instance to a high standard of organic purity.
Analyses were also made of 44 samples of sewage and
sewage effluent, six samples from shallow wells and several
samples from various water courses in the District.