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(b) Chemical Analyses.
The arrangements for chemical analyses are similar to those
for bacteriological examinations. The total numbers of samples
analysed in the Water Department's laboratory and by the consultant
were 69 of raw waters and 144 of treated waters going into
supply.
The results of the chemical analyses were uniformly satisfactory.
The waters are not liable to have plumbo-solvent action.
The whole of the population and dwelling-houses within the
area of supply are supplied from public water mains direct to the
houses.
Testing of Samples by the Health Department.
Weekly samples have been submitted to the area Public Health
Laboratory, for bacteriological examination. The premises from
which the samples are taken are selected to cover each week the
different sources of supply to the several areas of the borough,
In addition, a monthly chemical analysis is carried out by the
Public Analyst, who is furnished with copies of the reports of
the bacteriologist.
During the year under review the total number of examinations
performed were:-
Bacteriological 227
Chemical 10