22
NELLORE.
WATER SAMPLES TAKEN-27TH FEBRUARY 1912.
REMARKS.—The sample was not taken from the river bed as there was no flow of water in the
river. The supply is intermittent. There has been about 13.7 inches of rain
since last analysis.
Bacteriological Analyses.
SAMPLE I.—TAP IN FRONT OF PUMPING STATION AT HEAD-
WORKS.
Numbe r . La c t os e .
Sa c c ha r os e .
Du l c i t e .
A d o n i t e .
Inuline.
V o g e s a n d P r o s k .
I n d o l .
Mot i l i t y.
Group.
Total colonies per cc. on agar at 37° C.—3,000.
Name of Bacilli.
Group and
Remarks.
Bile salt lactose, medium.
+
-
1 tube of 20 cc.
...
...
...
...
1
. .
1 + + - + - + - - IV B. Lactis ærogenes. Group I, nil.
2 tubes of 10 cc.
...
...
...
...
1
1
2 + + - + - + - - IV
Do.
„
II, nil.
3
„
5 cc.
...
... ...
. . . 3
. . .
3 + + - + - + - - IV
Do.
„ III, nil.
3
„
1 cc. ...
...
...
...
1
2
4 + + - + - + - + IV B. 102
„
IV,
10.
3
„
. 1
c c .
. . .
. . .
. . .
. . . ...
3
5 + + - + - + - - IV B. Lactis ærogenes.
3
„
. 0 1
c c .
. . .
. . .
. . .
. . . ...
3
6 + + - + - +
+ - IV
Do.
7 + + - + - + - - IV
Do.
Fœcal bacilli in 5 cc. and upwards.
8 + + - + - + - + 1V B. 102
...
... Class I nil.
9 + + - + - + - - IV B. Lactis ærogenes.
„ II, 10.
No vibrios in 100 cc.
10 + + - + - + - + IV B. 102.
...
...
„ III, nil.
SAMPLE II.—TAP IN EASTERN CORNER—FOUNTAIN No. 3,
NAVVAPET.
1 + + - + - + -
- IV B. Lactis ærogenes Group I, nil.
Total colonies per cc. on agar at 37° C.—720.
2 + + + - - + - - III B. 75
...
...
,, II, nil .
3 + + - + - + - - IV B. Lactis ærogenes.
„ III, 2.
4 + +
- - - - +
- IV B. Coscoroba
...
„ IV, 8
Bile salt lactose, medium.
+
_-
5 + + - - - - + - IV
Do.
6 + + - - - - +
- IV
Do.
7 + + + - - + - - III B. 75.
1 tube of 20 cc. ...
...
...
...
1
...
8 + + - + - + -
- IV B. Lactis ærogenes. Class I, nil.
2 tubes of 10 cc. ...
...
...
...
2
...
9 + + - - - - + - IV B. Coscoroba
„
II
8.
3
„
5 CC.
... ...
...
. . . 3
. . . 10 + + - + - + - - IV B. Lactis ærogenes.
„
„
III,
2.
3
,.
1 ce. ...
3
„
.1 cc. ... ..
3
3
„
.01 cc. ... ...
3
Fœcal bacilli in .1 cc. and upwards.
No vibrios in 100 cc.
SAMPLE III.—TAP IN FRONT OF DISTRICT COURT.
1
+
+ + +
-
+ -
- III B. 67
...
...
Group, I, nil.
Total colonies per cc. on agar at 37° C.—7.
2 +
+ + + - + -
- III Do.
...
. .
„ II, nil.
3 +
+ + + - - -
- III Do.
... ' ...
„ III, 8.
4 + + + + - -+ -
- III Do.
TV, 2 2.
Bile salt lactose, medium.
+
_
5 + + + + - + -
- III Do.
6 + + - + - + -
- IV B. Lactis ærogenes.
7 + + + - - + -
- IV
Do.
1 tube of 20 cc. ...
...
8 + + + + - + -
- III B. 67
...
... Class, 1, nil.
2 tubes of 10 cc. ...
...
...
...
1
1
9 + + + + - + -
- III Do.
.
„ II, 10.
3
„
5 cc. ...
...
...
...
1
2 10 + + + + - + -
- III Do.
--
...
„ III, nil.
3
„ 1 c c
3
3
„
. 1 c c .
. . .
. . .
. . .
. . . ...
3
3
„
. 0 1 c c .
. . .
. . .
. . .
. . . ...
3
Fœcal bacilli in 10 cc. and upwards.
No vibrios in 100 cc.
REPORT.
But for a surprisingly high total count the water as pumped from the Infiltration Gallery is fairly good,
though by no means so good as it has been. No sample of the river water could be obtained, but judging by
past results it is probable that the sub-soil water was pretty impure. Sample No. III from a tap in front of
the District Court gives very good results but Sample IT is markedly inferior and much worse than the water
at the headworks. This section of the pipe line probably wants scouring out.
Chemically the water is much as usual ; the marked increase in the figure for Albuminoid Ammonia in
the water as distributed, associated as it is with a fall in the free ammonia and in oxygen absorbed is
probably due to some technical error.