52
DINDIGUL.
WATER SAMPLES TAKEN—29TH AUGUST 1911.
REMARKS.—Water is derived from two sources (1) an infiltration gallery and (2) a deep well. Infiltration gallery was used as a source
of supply when samples were taken. The supply is intermittent. There has been about 9.05 inches of rain since last analysis.
Bacteriological Analyses.
SAMPLE I.—
T A P I N F R O N T O F P U M P I N G S T A T I O N ( D E E P W E L L ) .
N u m b e r .
L a c t o s e .
S a c c h a r o s e .
Du l c i t e . Ad 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 ndol . Mo r t i l i t y . Gr o u p .
Name of Bacilli.
Group and
Remarks.
Total colonies per cc. on agar at 37° C.—
600.
Bile salt lactose, medium.
+
—
1 t ube of 20 cc. . . . . . . . . . . . .
1 ... 1 + — — —
— —
+ — I B. Vesiculosus ... Group I, 6.
2
+ — — — — —
+ — I
Do . . . .
, , I I ,n
i l .
2 tubes of 10 cc.
... ... ... ...
2 ...
3 +
— — — — —
+ — 1
Do.
...
„ III, nil.
3 ,, 5cc. ... ... ... ...
3 ...
4 +
— — — — —
+ — 1
Do.
... '' IV,4.
3 , ,
1 c c . . . . . . . . . . . . .
3 ...
5 + +
— — — —
+ —
I V
B. Coscoroba.
3
, ,
. 1 c c .
. . .
. . . . . . . . .
. . .
3 6 +
— — — — —
+ — I B. Vesiculosus.
3 ,, .01 cc. ... ... ... ...
. . .
3 7 + + —
— —
— + — IV B. Coscoroba.
Fœcal bacilli in 1 cc. and upwards.
8 +
—
— —
— —
+ — I B. Vesiculosus
Class I, nil.
9 + + — —
— —
+ — IV B. Coscoroba.
,, II, 4.
No vibrios in 100 cc.
10 + + — —
— —
+ — IV Do.
... „ III, 6.
SAMPLE II—
FOUNTAIN No. 19 IN EASTERN END.
1 + + — +
—
+ — — IV B. lactis ærogenes.
Total colonies per cc. on agar at 37 0 C.—
80.
2 + + — +
—
+ — — IV
Do.
I Group 1, nil.
Bile salt lactose, medium
+
—
3 + + — +
—
+ —
—
IV
Do.
„ II, nil.
4 + +
—
+
—
+
—
— IV
Do.
,,
III, nil.
5 + +
—
+
—
+ — — IV
Do.
„ IV, 10.
1 tube of 20 cc.
...
... ... ...
. . .
1 6 + +
—
+
—
+ — — IV
Do.
7 + +
—
+
—
+
— —
IV
Do.
2 tubes of 10 cc.
... . . . . . . . . .
1
1
8 + + — +
—
+
—
—
I V
Do.
Class I, n i l .
3 „
5 cc.
... . . .
. . .
. . . ...
3 9 + + — +
—
+
— —
IV
Do.
„ II, 10.
3 „
1 cc.
...
...
... . . . . . .
3 10 + + — + — +
—
— IV
Do.
„ III, n i l .
3
, ,
. 1 c c .
. . .
. . .
. . .
. . . . . .
3
3
,, . 0 1 c c .
. . .
. . .
. . .
. . .
. . .
3
Fœcal bacilli present in 60 cc.
No vibrios in 100 cc.
S A M P L E I I I . — F O U N T A I N N o . 1 0 I N D R O U P A D I A M M E N S T R E E T .
1 +
+
—
— —
— + — IV B. Coscoroba.
Total colonies per cc. on agar at 37° C.—
2.080.
2 + +
—
—
—
— + — IV
Do.
... Group I, 2.
Bile salt lactose medium.
+
—
3 + +
— — — —
+ — IV
Do.
...
,, II, nil.
4 + +
—
—
— —
+ — IV
D o . . . .
III. nil.
5 +
— — — — —
+
—
I V B. Vesiculosus
„ IV, 8.
1 t u b e o f 2 0 c c . . . . . . . . . . . . .
1
. . . 6 + +
— — — —
+
—
I V
B. Coscoroba
2 tubes of 10 cc.
. . . . . . . . . . . .
2
. . .
7 ++
— — — —
+ + IV B . 1 0 6 .
3 , , 5 c c . . . . . . . . . . . . .
3
. . .
8 +
— — — — —
+ — I V
Vesiculosu s ...
Class I, nil.
3 , , 1 c c .
. . . . . . . . .
. . .
3
...
9 + +
—
—
— —
+ — IV B. Coscoroba
...
, ,
I I , 7 .
3 , , . 1 c c . . . . . . . . . . . . .
1
2 10 ++
—
—
—
—
+
—
IV B. Cloacæ
... „ III. 3.
3 , , . 0 1 c c . . . . . . . . . . . . .
. . .
3
Fœcal bacilli in 1 cc. and upwards.
No vibrios in 100 cc.
REPORT.
The water at the headworks remains unaltered in quality since the previous report ; but a curious inter-
change has taken place in the two taps of the Distributary System. The sample at No. 19 tap is much superior
to the other, while the vice versâ was the case on the previous occasion. This state of affairs is quite usual when
the two sources of supply are alternate.
Chemically the water is very hard but otherwise fair.