23

REPORT OF THE KING INSTITUTE, GUINDY

Source. Dates of examination and results. Remarks on supply.
12. Erode . . . 31 Aug. 1925 . . . 3 Mar. 1926 . . . Indifferent. The results are variable
and seem to depend upon the way the
mechanical filters are worked.
     River water . . . 0.01 c.c. . . . 0.1 c.c.
     Mechl. filtered water . . . >60 c.c. . . . 5 c.c.
     Dy. system 1 . . . 60 c.c. . . . 5 c.c.
     " 2 . . . 20 c.c. . . . . . .
13. Gudiyāttam . . . 28 Apr. 1925 . . . 27 Oct. 1925 . . . Indifferent. Variable like most gallery
supplies. See Anantapur.
     Infn. gallery . . . 20 c.c. . . . 1 c.c.
     Dy. system . . . 5 c.c. . . . 1 c.c.
14. Guntūr . . . 22 Sep. 1925 . . . 16 Mar. 1926 . . . Poor. This supply is worse now than
some years ago, perhaps the gallery
needs attention.
     Infn. gallery . . . 0.1 c.c, . . . 1 c.c.
     Dy. system . . . 1 c.c. . . . 1 c.c.
15. Kodaikanal . . . 18 Apr. 1925 . . . 7 Sep. 1925. Good.
     Upland sur. water . . . 60 c.c. . . . 20 c.c. . . .
     Dy. system 1 . . . 60 c.c. . . . 5 c.c.
       Do. 2 . . . 60 c.c. . . . 20 c.c.
16. Kumbakōnam . . . 24 June 1925 . . . 16 Dec. 1925 . . . Excellent, despite its very high free
ammonia content of geological origin.
     Borehole . . . >60 c.c. . . . >60 c.c.
     Dy. system 1 . . . 10 c.c. . . . 60 c.c.
       Do. 2 . . . 20 c.c. . . . >60 c.c.
17. Kurniol . . . 8 June 1925 . . . 26 Nov. 1925 . . . Variable for though the filtration is
good, at times unfiltered water is
mixed with filtered—this is both un-
necessary and unauthorized.
     Storage. tank . . . 5 c.c. . . . 0.1 c.c.
     F. water . . . >60 c.c. . . . 20 c.c.
     Dy. system . . . 5 c.c. . . . 10 c.c.
18. Madras Corporation . . . 14 July 1925 . . . 23 Mar. 1926 . . . Though the filtered water is classed as
indifferent the supply as a whole is
bad, because filtration is useless since
unfiltered water in large quantities is
added to filtered water. The final
distributed supply is worse than the
raw water at the lake end.
     Red Hills lake . . . . . . 60 c.c.
     End of conduit . . . 10 c.c. . . . 1 c.c.
     Filtered water . . . 5 c.c. . . . 5 c.c.
     Test tap . . . 5 c.c. . . . 5 c.c.
Dy. system . . . 20 c.c. . . . 1c.c.
5 c.c.
10 c.c.
19. Madura . . . 9 May 1925 . . . 24 Nov. 1925. Indifferent—the Kochadai gallery
supply is excellent.
     River . . . . . . 0 01 c.c. . . .
     Gallery at Kochadai . . . >60 c.c. . . . >60 c.c.
     Gallery at Arapalaiyam . . . 20 c.c. . . . 5 c.c.
     Dy. system . . . >6O C.C. . . . 5 c.c.
20. Masulipatam . . . 7 Sep. 1925 . . . 27 Feb 1926. Good.
     Storage tank . . . 1 c.c. . . . 10c.c. . . .
     F. water (Mechl.) . . . 5 c.c. . . . 20 c.c.
     Dy. system 1 . . . 20 c.c. . . . 20 c.c.
       Do. 2 . . . 10 c.c. . . . 20 c.c.
21. Negapatam . . . 25 & 26 Aug.
1925.		 16 Feb. 1926. Indifferent. Variable like most gallery
supplies.
     River water . . . 0.1 c.c. . . . 0.1 c.c. . . .
     Infn. gallery . . . 20 c.c. . . . 5 c.c.
     Dy. system . . . 20 c.c. . . . 1 c.c. and
5 c.c.
22. Nellore . . . 2 Aug. 1925 . . . 4 Feb. 1926. Excellent. Has been uniformly good
for several years.
     River water . . . . . . 0 1 c.c.
     Infn. gallery. . . 60 c.c. . . . >60 c.c.
     Dy.system . . . >60 c.c. . . . >60 c.c.
60 c.c.
23. Ootacamund . . . 15 July 1925 . . . 24 Mar. 1926. The water from the several lake sources
is excellent, except from Kodapa-
mund and old Ooty. cisterns where
it is not so good
     D. Upper . . . 20 c.c. . . . 60 c.c. . . .
     D. Lower . . . >60 c.c. . . . >60 c.c.
     D. Pipe line . . . 60 c.c. . . . >60 c.c.
     Tiger Hill . . . 10 c.c. . . . 20 c.c.
     Pipe line . . . >60 c.c. . . . >60 c.c.
     Marli. reservoir . . . 10 c.c. . . . >60 c.c.
     Pipe line . . . >60 c.c. . . . >60 c.c.
     Kodapamund . . . 5 c.c. . . . 20 c.c.
     Old Ooty. . . . 5 c.c. . . . 20 c.c.
     Government House . . . >60 c.c. . . . >60 c.c.
24. Periyakulam . . . 3 June 1925 . . . 9 Dec. 1925. Poor. The filtration is still very
defective.
     Raw water . . . 0.1 c.c. . . . 1 c.c. . . .
     F. water . . . 5 c.c. . . . 1 c.c.
     Dy. system . . . 10 c.c. . . . 5 c.c.
  5 c.c