22
REPORT OF THE RING INSTITUTE, GUINDY
TABLE XIV.
Synopsis of results of examination of water samples. —In the columns headed
dates and results, first the date of examination is given and then the minimum
number of cubic centimeters of water in which lactose fermenters could be found.
When these were absent in 60 c.c., the mark > is written before 60 to indicate
that the minimum quantity was something greater than 60 c.c. Unless otherwise
stated, filters refer to slow sand filters. The expression “ Distributary system ”
includes service reservoirs.
Municipalities.
Source.
Dates of examination and results.
Remarks on supply.
1. Ad
ō n i
. . .
. . .
. . .
. . . 26 Apr. 1925 ... 20 Oct. 1925.
Bad. Suffers from drought. See report,
page 6.
Spring ...
...
...
1 c.c. . . .
1 c.c.
Nallacheruvu Tank
...
...
1 c.c.. . . .
...
Filtered water ...
. . . . . .
1 c.c.
. . .
. . .
Distributary system ...
. . .
1 c.c.
. . .
1 c.c.
2. Anantapur
•.. ...
. . .
21 Apr. 1925 ... 14 Oct. 1925
... Bad. The infiltration gallery does not
seem able to deal with pollution in
water after rains.
At this time
chlorination is necessary.
River water
...
. . .
. . .
0'01 c.c.
Infn. gallery
...
. . .
. . .
60 c.c.
...
0'1 c;c
Dy. system I
...
...
...
20 c.o.
...
0.1 c.c.
Do.
2 ...
60 c.c.
...
0.1 c.c.
3. Berhampur
. . . 17 June 1925 ... 18 Nov. 1925.
Good but variable because the water
deteriorates in quality in the dis-
tributary system.
Tank water
...
...
. . .
10 c.c.
5 c.c.
...
Filtered water
. . . • ••
5 c.c.
60 c.c.
Do.
. . .
60 c.c.
...
60 c.c.
Dy. system 1
...
. . .
10 c.c.
...
20 c.c.
Do.
2 ...
...
. . .
60 c.c.
.. .
5 c.c.
4. Bezwada ...
...
...
...
23 Sep. 1925 ... 17 Mar. 1926
... Good except for high free ammonia
content persistent in samples from
pumping station. See report.
•
Infn. wells
......
10 c.c.
...
10 c.c.
Dy. system 1 ...
...
...
10 c.c.
...
20 c.c,
Do.
2 ...
...
10 c.c.
. . .
20 c.o.
5. Chidambaram ...
...
.. 30 June 1925 ... 31 Jan. 1926 ... Indifferent. The mechanical filters
were out of order. They have since
been put right.
Tank
...
...
•••
...
0 1 c.c.
...
5 c.c.
F.W. (Mechl.) .,.
...
5 c.c.
...
10 c.c.
Dy. system
...
. . .
1 c c.
1 c . c .
6. Cocanada
...
... 25 May 1925
... 2 Dec. 1925
... Indifferent. The filters are not acting
properly.
Tank
...
...
. . .
10 c.c.
...
60 c.c.
F.W.
...
...
...
...
10 c. c.
...
5 c.c.
Dy. system 1 ...
...
...
10 c c.
. . .
10 c.c.
Do.
5 c.c.
. . .
5 c.c.
7. Conjeeveram
...
...
. . . 4 May 1925
... 1 Oct. 1925.
Indifferent.
lnfn. gallery
..
...
...
5 c.c.
. . .
5 c.c.
...
Dy. system
...
...
...
1 c.c.
...
5 c.c.
8. Coonoor
...
...
... 12 Aug. 1925 ... 23 Feb. 1926.
Indifferent.
Upland surface water
..
1 c.c.
...
1 c.c.
...
Dy. system
...
. . . ••.
5 c.c.
...
5 c.c.
1 c.c.
9. Cuddapah
... ...
... 22 July 1925 ... 10 Jan. 1926.
Indifferent.
Bugga spring ......
...
5 c.c.
...
lnfn. gallery ...
...
...
1 c.c.
...
5 c.c.
Dy. system
1
...
..
1 c.c.
...
5 c.c.
Do.
2
...
. . .
5 c.c.
...
5 c.c.
10. Dindigul
...
... ... 8 May 1925
... 25 Nov. 1925 ... Gallery supply indifferent. Well supply
bad and should not be used without
chlorination.
Deep well
...
...
. . .
0.01 c.c.
. . .
. . .
Infn, gallery
...
. . .
10 c.c.
...
5 c.c.
Dy. system
...
...
...
5 c.c.
...
1 c.c.
11. Ellore
...
...
...
... 1 Aug. 1925
... 3 Feb. 1926
... Poor. Local investigation are needed
to ascertain why the filters do not act
better.
Tank
....
...
...
..,
5 c.c.
...
1 c.c.
F.W.
...
...
...
5 c.c.
1 c.c.
...
Dy. system
...
...
5 c.c.
...
1 c.c.