55
BEZWADA.
WATER SAMPLES TAKEN—30TH APRIL 1912.
Remarks. —The supply is intermittent. There was no rain since last analysis.
Bacteriological A nalyses.
SAMPLE I.—FIRST TAP AFTER SERVICE RESERVOIR.
N u m b e r .
L a c t o s e .
S a c c h a r o s e .
D u l c i t e .
A d o n i t e .
I n u l i n .
V o g e s a n d P r o s k .
I n d o l .
Mo t i l i t y .
G r o ù p .
Name of Bacilli.
Group and
Remarks.
Total colonies per cc, on agar at 37° C.—155.
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 D o .
„
II‚ nil.
3 „
5 cc.
...
...
...
. . .
3
. . . 3 + + - + - + - - IV B. Lactis ærogenes.
„ III‚ 6.
3„1 cc. . . . . . . . .
•••
3
. . . 4 + + + + - + - -
- III B. 67
„IV, 4.
3 , , . 1 c c . . .
3
. . . 3
5 + + +
+ - + - - III Do.
3 ,
3
6
7
+ + - + -
+
- - IV
IV
B. Lactis ærogenes.
Do.
Fœcal bacilli in 1 cc. and upwards.
8 + + + + - + - - III B. 67
...
... Class I, nil.
9
+
+ - - III Do,
II, 10.
No vibrios in 100 cc.
10 + + - + - + - - IV B. Lactis ærogenes.
III, nil.
SAMPLE II.—TAP ON THE ELLORE ROAD CLOSE TO TOLL-GATE.
1 + + - +
- +
- -
IV B. Lactis ærogenes.
Group I, nil.
Total colonies per cc. on agar at 37° C.—580.
-
2 + + - + - - - - IV B. Gasoformans ...
„
II, nil.
3 + + — + — + - - IV B. Lactis ærogenes.
,, III, 1.
4
- IV
Do.
„ IV, 9.
5 + + + + — + - - III B.67.
Bile salt lactose, medium.
-
6 + + - + - - - - IV B. Gasoformans,
7 +
- - _ _ IV
Do.
8 + + - + - - - - IV
Do.
. . . Class
I, nil ,
1 tube of 20 cc.
...
...
...
...
1
...
9
- - -- IV
Do.
... „
II, 10.
2 tubes of 10 cc. ...
...
...
...
2
... 10 + + - + - + - - IV B. Lactis ærogenes.
„
III, nil.
3
3
. . .
3
3
...
3
,
3
. . .
3
,,
.01 cc. ... ... ... ..,
1
2
Fœcal bacilli in .1 cc. and upwards.
No vibrios in 100 cc.
SAMPLE III.—TAP IN QUARRY ROAD NEAR NUZVID TOLL-GATE.
1 + + - + - + - - IV B. Lactis ærogenes. Group I, 1.
Total colonies per cc. on agar at 37° C.—150.
2 + - +- - - + - II B. Schæfferi ... ... „
II, 8.
3 + - +- - - + - II
Do.
...
... „ III, nil.
4 + +- - - +- II
Do.
...
... „ IV, 1.
Bile salt lactose, medium.
-
5 + +- - - +- II
Do.
6 + - +- - - + - II
Do.
7 +
+- - - +- II
Do.
8 +
+ - I B. Vesiculosus
... Class I, 8,
1 tube of 20 cc....
. . . ...
...
9 + - +
- - + - II B. Scbæefferi ... ...
„
II, 1.
2 tubes of 10 cc....
. . . •••
...
...
10 + - + - - + - II
Do.
...
...
.
„ III, I.
3
I, 5 cc. ... ...
3
. . .
3
1 cc.
•••
•••
...
•••
2
1
3.1 cc.
...
...
..•
, ,
. . .
3
3
„ .01 cc. ... ... ... ...
. . .
3
Fœcal bacilli in 1 cc. and upwards.
No vibrios in 100 cc.
REPORT.
Bacteriologically these samples are not so good as they were at this season last year.
The sample from the first tap after the service reservoir is the least bad as regards its bacterial content.
The sample from a tap in the Ellore Road shows a marked increase in bacteria of all kinds and the fœcal
germs are in greater variety. Sample III, from a tap in the Quarry Road reverts as regards number to
sample I ; but the susceptible germs of Class I denoting recent pollution are strongly in evidence. Chemically
there seems to be evidence that the saline constituents are being washed out of the soil, as the soluble parts of
the total solids are notably less than at first. The samples are high in oxidised nitrogen and are moderately
hard, but otherwise quite good.