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APPENDIX I.
A SUMMARY OF THE RESULTS OF EXAMINATION OF THE WATER-SUPPLIES
IN THE PRESIDENCY FOR THE YEAR 1919.
Ad ō ni .—The raw water was rich in organic matter which the sand filters did not
succeed in removing to any appreciable extent. The results obtained were not good.
Berhampore. —The results of filtration were variable. They were poor in November
1918, slightly better in May 1919, and definitely better in October. The samples from the
distributary system indicated fouling of the pipe line.
Bezwada .—Both examinations yielded very good results.
Conjeevaram. —The quality of the water fluctuated during the year. It was good in
June but had deteriorated considerably in October.
Cocanada .— Eminently satisfactory results were recorded in February and July indicating
efficient working of the sand filters. In November a regrettable deterioration was apparent.
Cuddapah .—In February, when the river was low, good results were obtained with the
gallery water but at the July and November examinations, the water was found to be
indifferent in quality and a dirty pipe line was adding to the contamination.
Coonoor .—The supply to this hill station was found at all the examinations to be in very
fair order. The organic matter content tended to increase.
Chidambaram. — Samples were examined in May and again in August. The August
results were slightly better than those of May. Both, however, were distinctly below the
average.
Dindigul.—The supply derived from the Odukam gallery was fair at all three examina-
tions. The deep well used occasionally for augmenting the supply was either indifferent or
bad and had to be condemned. It appears that there was no necessity to draw from this
source during the year under reference.
Ellore. —The results of two examinations showed that the sand filters were not doing
what was expected of them.
Erode.—This supply was examined twice during the year in April, and in August. The
results were poor on both the occasions, the August results being slightly the better of
the two.
Gudiyā ttam.—At three consecutive examinations, it was noticed that the water, as it left
the gallery, was fair but deteriorated in transit as a result of a dirty pipe line.
Gantū r.— Here again the water was passable at the source but was spoiled in transit.
Kodaikā nal.—A chemically fair water did not reach the standard appl ic able to hill
station supplies from the bacteriological point of view. The organic matter was present in
excess.
Kurnool.—The water showed no improvement after sand filtration at the first two
examinations and only a slight change for the better was recorded on the third occasion.
Kumbakōnam. —A pure water from a deep sub-artesian borehole was supplied to a part
of the town, but excessive free ammonia and a brown gelatinous scum detract from the value
of the supply.
Madras Corporation. —In April only 4 out of 9 filters yielded filtrates of good quality
The others were found to be working unevenly. In August 8 out of 12 gave satisfactory:
results. The final product was unsatisfactory at both examinations and the water was found
to suffer in transit.
Madura.—The old gallery supply was unsatisfactory in June ; but the water derived from
the. Kochadai extensions was very fair in quality.
Masulipatam.—The sample of water examined in May was unsatisfactory. In September
the filtered water was found to be worse than the raw water feeding the filter.
Negapatam.—Variable results were obtained with the samples of water from Negapatam.
In April the water was indifferent. The September examination showed the pipe line to be
at fault.
Nellore. —On both the occasions on which samples were analysed, the water-supply was.
found to be in very fair order.
Ootacamund.—When examined in March all except the Kodapamund reservoir gave
excellent results ; the Kodapamund reservoir was not so satisfactory. The value of the second
examination was vitiated by a storm which occurred during the collection of the samples.
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