26
REPORT ON THE WORKING OF THE KING INSTITUTE, GUINDY
APPENDIX I.
SYNOPSIS OF REPORTS ON INDIVIDUAL WATER-SUPPLIES.
Adōni.— In April 1921 the water-supply was derived from both the tank and Ramjella
spring. The tank water contained as usual a great excess of organic matter and the sand
filters were not acting beneficially. In October the supply of the town was of fair quality
being drawn entirely from the spring.
Berhampur.— The water-supply to this town was examined twice during the year. In
the first examination the filterate was fair, but in the second deterioration had taken place.
Bezwada.—The supply was examined 3 times. The results of the various examinations
were satisfactory, but in the second occasion there was an excess of free ammonia in the
sample taken from the tap in pumping station.
Chidambaram.— On all the three occasions on which .this supply was examined the
mechanical filter was not effecting any appreciable improvement ; at the June examination,
however, there was a slight improvement on the bacteriological side.
Cocanada.— In May 1921 the filtered water did not show any improvement over the raw
water. In November samples from each of the three filters were examined and found to be
giving fair results. Improvement in distribution was also noticed.
Conjeeveram. —In April, a good water at the source was found to suffer in transit as a
result of a fouled pipe line. In October the supply was in fair order.
Coonoor.—The water-supply continued to be satisfactory.
Cuddapah .—The water was passable at the headworks, but suffered in transit through
dirty reservoir and fouled pipe line. This state of affairs was found at all the three
examinations.
Dindigul .—In May the supply was in very good order, but in November there was great
deterioration especially from the bacteriological point of view.
Ellore .—The water-supply to this town still continues to be far from satisfactory, the
sand filters are not being worked to the best advantage.
Erode .—The supply was in fair order. The mechanical filters were not being worked
with the optimum dosage of alum, a fact which has been constantly pointed out.
Gudiyā ttam—The water-supply was fair at the first examination, but in the second a
dirty service reservoir was found to be producing deterioration.
Guntū r.—The sample of water at the headworks was of fair quality on the first two
occasions, but showed a great falling off in September 1921. There was further deterioration
in transit.
K o d a i k
ā n a l
. — T h e w a t e r - s u p p l y t o t h i s H i l l s t a t i o n w a s f o u n d t o b e i n g o o d o r d e r .
Kumbakōnam.—The water-supply from the sub-artesian bore-hole was as usual pure,
excessive figures for free ammonia, however, have always been persistent in this water and are
evidently derived from the strata.
Kurnool.—The filtered water was not of the quality one would expect from a properly
worked slow sand filter installation.
Madras Corporation. —The sand filters as a whole were producing fair results during the
period. The water as supplied to the town, however, fell short of the necessary standard of
purity as a result of the inevitable admixture of raw water with the filtrate.
Madura.—The supply from the new Kochadai gallery was of a good quality and far
superior to that of the old gallery at Arapalayam. The supply to the town, however, which
was a mixture of the two, was found to be much inferior having suffered in transit to a great
extent.
Masulipatam. —This town uses a mechanical filter installation. The supply was in good
order as judged by the results of the three examinations done during the period under
report.
Negapatam. —The infiltration gallery laid in the bed of the Vettar river was able to deal
fairly well with the suspended matter in the raw water. During summer when the bed of
the river was dry the water at the headworks was good, but suffered in transit.
Nellore. —The water-supply was in excellent order on all the three occasions. There is,
however, a great excess of albuminoid ammonia in the sample from one tap in the August
examination. This was perhaps due to stasis near that particular hydrant.
Ootacamund .—The supply to this Hill station continued to be in fair order.