3
DINDIGUL.
WATER SAMPLES TAKEN—10TH JANUARY 1912.
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 8.29 inches of rain since
last analysis.
Bacteriological Analyses.
SAMPLE I.—TAP IN FRONT OF PUMPING STATION (DEEP WELL).
Total colonies per cc. on agar at 37° C.—680
Numbe r . Lact ose.
S a c c h a r o s e .
Dul ci t e.
A d o n i t e .
I n u l i n .
V o g e s a n f p r o s k .
Indol .
Mo t i l i t y .
Group.
Name of Bacilli.
Group and
Remarks.
Bile salt lactose, medium.
+
-
1 tube of 20 cc.
...
. . . . .
1
. ..
1 + - -
+ -
- + - I B. Acidi lactici.
2 tubes of 10 cc.
. . . . .. ..
2
...
2 + - - + - - + - I
Do.
... Group I, 9.
3 1,
5 cc.
. ..
...
3
...
3 + - - + - - + - 1
Do.
II, nil.
3 fl
1 cc.
. .
3
...
4 + - - + - - + - I
Do.
... „ III, nil.
3 ,,
.1 cc.
..
...
3
...
5 + - - + - - + - I
Do.
... „ IV, 1.
3 ,, .10 cc.
...
. .. ... . . .
1
2
6 + - - - - - + - I B. Vesiculosus
Fœcal bacilli in .1 cc. and upwards.
No vibrios in. 100 cc.
7 + + - - --- + - IV B. Coscoroba.
8 + - - - - - + - I B. Vesiculosus
... Class I, nil.
9 + - - + - - + - I B. Acidi lactici
... „
II, 8.
10 + - - + - - + - I
Do.
... „ III, 2.
SAMPLE IL—FOUTAIN No. 19 IN EASTERN END.
Total colonies per cc. on agar at 37° C.—86.
Bile salt lactose, medium.
1 + +
- - -
- -
- IV B. 111.
...
2 + + - + - + - - IV B. Lactis ærogenes
Group I, nil.
+
-
3 + + - - - - - - IV B.III
II, nil.
4 + + - - - - - - IV
Do.
III, nil.
5 + + - - - - - - IV
Do.
IV, 10.
6 + + - + - - - - IV B. Gasoformans.
1 tube of 20 cc.
...
...
...
...
1
...
7 + + - + - - - - IV
Do.
2 tubes of 10 cc.
...
...
...
...
2
...
8 + + - - - - - - IV B. III
...
... Class I, nil.
3
,,
5 cc.
, ..
...
...
...
3
9 + + - - - - - - IV
Do.
"
" II, 3.
3
„
2
1 10 + + - - - - - - IV
Do.
..
III, nil.
3
,,
1 cc.
...
...
...
..
1
2
Undetermined,
3
„ .01 cc.
...
...
...
...
...
3
7.
Fœcal bacilli in 1 cc. and upwards.
No vibrios in 100 cc.
SAMPLE III.—FOUNTAIN No. 10 IN DROWPADI AMMEN STREET.
Total colonies per cc. on agar at 37° C.—156.
1 + + - - - - + - IV B. Coscoroba.
2 + + - - - - + - IV
Do.
... Group I, nil.
3 + + - - - - + - IV
Do.
..
„
II, nil.
Bile salt lactose, medium.
+
_
4 + + - - - - + - IV
Do.
... „ III, nil.
5 + + - - - - + - IV
Do.
... „ IV, 10.
6 + + - - - - + + IV B. 106.
1 tube of 20 cc.
...
...
...
...
1
7 + + - - - - + - IV B. Coscoroba.
2 tubes of 10 cc.
...
...
..,
, .,
2
...
8 + + - - - - + + IV B. 106
...
... Class I, nil.
3
6 cc.
...
...
...
3
..
9 + + - - - - + - IV 13. Coscoroba,
.
„
II, 10.
3
1 cc.
...
3 10 + + - - - - - + - IV
Do..
III, nil.
3
„
,.1 cc.
...
...
...
... ...
3
3 "
.01 cc.
...
...
...
3
Fœcal bacilli in 5 cc. and upwards.
No vibrios in 100 cc.
R E P OR T
Although the extremely high level of purity noticed at this season last year has not been maintained,
the water is still in fair order with low total counts and not many excremental organisms, and these on
the whole of a non-objectionable type. The well water is much poorer in quality as it almost always
is. Chemically the two waters are not so alike as has been noted on previous occasions and the balance is
distinctly in favour of the deep well water.