147
CUDDAPAH.
WATER SAMPLES TAKEN—4TH NO VEMBER 1912.
Remarks.—The Bugga river was dry except a small quantity of water found stagnant near the
Head-works. There was only about 2 feet 2 inches of water over the gallery at
the eastern end. The sample adjoining the service reservoir was not taken as
there was no flow of water through the tap owing to the low level of water in the
service reservoir. The level of water in the service reservoir was about 3 feet
4 inches. The supply is intermittent. There has been about inches of
rain since last analysis.
Bacteriological Analyses.
SAMPLE I.—SAMPLE OF WATER TAKEN ABOVE THE GALLERY.
Number . La c t o s e . S a c c h a r o s e . Dul ci t e. Adoni t e.
Inul i n.
V o g e s a n d P r o s k . I ndol e. Mot i l i t y. Group.
Name of Bacilli.
Group and
Remarks.
Total colonies per cc. on agar at 37° C.—120.
Bile salt lactose, medium.
+
-
1 tube of 20 cc.
...
...
...
1
...
1
+
+ + + - + - - III B. 67
...
... Group I, nil.
2 tubes of 10 cc.
...
...
...
...
2
...
2 + + + + - + - - III Do.
„ II, nil.
3
„ 5 cc.
...
....
....
3
. . .
3 + + + + - + - - III Do.
„ III, 10.
3
„ 1 cc.
...
...
3
. . .
4 + + + + - + - + III Do.
...
„ I V ,
n i l .
3
„
.1 cc.
...
...
...
1
2
5 + + + + - + - - III Do.
3
„
.01 cc. ... ... ... ...
...
3
6 + + + + - + - - III Do.
Fœcal bacilli in 1 cc. and upwards.
7 + + + + - + - - III Do.
...
... Class I, nil.
8 + + + + - + - - III Do.
II, 10.
9 + + + + - + - - III Do.
III, nil.
No vibrios in 100 cc.
10 + + + + - + - - III Do.
SAMPLE II—TAP IN YERRAMUKKUPALLI—NO. 8.
1
+
+ + + - + - - III B. 67
...
Group I, 3.
Total colonies per cc. on agar at 37° C.—220.
2 + -
- - - - + + I B. Grunthal
...
„
II, nil.
3 + + + + - + - - III B. 67
„ III, 7.
Bile salt lactose, medium.
+
-
4 + + + + - + - - III Do.
...
„ IV, nil.
5 + + + + - + - - III Do.
6 + + + + - + - - III Do.
1 tube of 20 cc.
1
. . . .
7
+ -
- - - - + + I B. Grunthal
... Class I, nil.
2 tubes of 10 cc.
...
...
...
2
. . .
8 + + + + - + - - III B. 67
„ II, 7.
3
„
5 cc,
...
...
..
.
3
. . .
9 + + + + - + - - III Do.
„ III, 3.
3
„ 1 cc.
...
...
..
.
3
...
10 + -
- - - - + + I B. Grunthal.
3
„
.1 cc.
...
...
...
...
. . .
3
3
„
.01 cc. ... ... ... ...
. . . 3
Fœcal bacilli in .1 cc. and upwards.
No vibrios in 100 cc.
SAMPLE III.—TAP AT THE END OF GEDDY BAZAAR. ROAD No.
89-3.
1 + + + + - + - - III
B. 67
...
... Group I, nil.
2 + + + + - + - - III
Do.
...
..
„ II, nil.
Total colonies per ca. on agar at 37° C.—125.
3 + + + + - + - - III
Do.
...
...
„ III, 10.
4 + + + + - + - - III
Do.
...
...
„ 1V, nil,
5 + + + + - + - - III
Do.
Bile salt lactose, medium.
+
-
6 + + + + - + - - III
Do.
7 + + + + - + - - III
Do.
...
... Class I, nil.
8 + + + + - + - - III
Do.
...
... „ II 10.
1 tube of 20 cc, ...
...
. . .
. . .
1
9 + + + + - + - - III
Do.
...
„ III, nil.
2 tubes of 10 cc. ...
...
...
...
2
...
10 + + + + - + - - III
Do.
3
„ 5 cc. ...
...
...
... 3
...
3 „
1 cc. ...
...
...
...
1
2
3 „
. 1
c c .
. . .
. . .
. . .
. . .
3
3 „ .01 cc. ...
...
...
...
. . .
3
Fœcal bacilli in 5 cc. and upwards.
No vibrios in 100 cc.
REPORT.
Under very similar meteorological. conditions the water taken above the gallery is of much the same quality
as at this season last year. There is, however, a definitely lower total count this year which is so much to the
good. Owing to the low level of the water in the service reservoir no sample could be got here, so it is not
possible to gauge the efficiency of the gallery in removing micro-organisms; but the water as drawn at Yerra-
mukkupalli is of much the same quality as the unfiltered water. The sample taken in the Geddy Bazaar Road
shows a definite improvement which is an unusual feature in the samples taken at this spot. This is associated
with an increase in the oxidised nitrogen, but no corresponding decrease in the organic matter. This latter is,
however, small in amount and chemically the water may be considered quite satisfactory.
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