20
DINDIGUL.
WATER SAMPLES TAKEN—10TH FEBRUARY 1911.
R E M A R K S .
— W a t e r i s d e r i v e d f r o m t w o s o u r c e s : ( i ) A n I n f i l t r a t i o n G a l l e r y a n d ( i i ) a d e e p - w e l l . I n f i l t r a t i o n G a l l e r y w a s u s e d a s
a s o u r c e o f s u p p l y w h e n s a m p l e s w e r e t a k e n . T h e s u p p l y i s i n t e r m i t t e n t . T h e r e h a s b e e n a b o u t 3 . 1 9 i n c h e s o f
r a i n s i n c e l a s t a n a l y s i s .
Bacteriological Analyses.
SAMPLE I.—TAP IN FRONT OF PUMPING STATION (DEEP WELL).
Col ony Number .
Lact os 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 .
Indol.Mot i l i t y.
G r o u p .
Name ofBacilli.
G r o u p a n d R e m a r k s .
Total colonies per cc. on agar at 37° C.—205.
Bile salt lactose, medium.
+ -
1 tube of 20 cc. of water taken ...
...
. . .
1 ...
1 + + - + - - + -
I V
B . 1 0 1 . . . . .
G r o u p I , 1 .
2 t u b e s o f 1 0 c c . „ . . . . . .
2
...
2 + + - -
- - + +
I V
B . 1 0 6 . . . . .
„ II, ni l .
3 „ 5 c c . „ . . . . . .
3 ...
3 + + - + - - + -
I V
B . 1 0 1 . . . . .
„ III,n i l
.
3 „ 1 cc.
„
. . .
. . .
3 ...
4 + + - -
- - + +
I
B . G r u n t h a l . .
„ I V , 9 .
3 „ .1 cc.
„
..
. . .
1 2
5 + + - + - - + -
I V
B . 1 0 1 . . . . . .
3 „ . 0 1 c c . „
. . .
3
6 + + - -
- - + +
I V
B . 1 0 6 . . . . . . .
7 + + - -
- - + +
I V
Do.
...
. . . Class I,
n i l .
F œ c a l b a c i l l i i n 1 c c . a n d u p w a r d s . 8 + + - -
- - + -
I V
B . C o s c o r o b a . . .
„ I I , 9 .
9 + + - -
- - + +
I V B. 106
...
... „ III,
1 .
No vibrios in 100 cc.
1 0
+ + - -
- - + +
I V
D o .
SAMPLE II.—FOUNTAIN No. 19, EASTERN END.
Total colonies per cc. on agar at 37° C.—23.
No lactose fermenters.
Bile salt lactose, medium.
+ -
1 tube of 20 cc. of water taken .......
...
1
2 tubes of 10 cc.
„ . . .
...
2
3 „ 5 cc. „
... ...
3
3 „ 1 cc.
„
... ...
3
3 „ .1 cc.
„ ...
3
3 „ . 0 1 c c .
„ ...
3
Fœcal bacilli not present in 60 cc.
No vibrios in 100 cc.
SAMPLE III.—FOUNTAIN No. 10 IN DRAUPADI AMMEN STREET.
1
+ + - - - + - +
IV
B. Cloacæ... Group I, nil.
Total colonies per cc. on agar at 37° c.—10.
2 + + - - - + - +
IV
Do.
...
„ II, nil.
3 + + - - - + - +
IV
Do.
...
„ III, nil.
4 + + - - - + - +
IV
Do.
...
„ IV, 10.
Bile salt lactose, medium.
+ -
5 + + - - - + - +
IV
Do.
...
6 + + - - - + - +
IV
Do.
... Class I, nil.
7 + + - - - + - + IV
Do.
... „ II, nil.
1 t u b e o f 2 0 c c . o f w a t e r t a k e n . . . . . .
. . .
1
8 + + - - - + - + IV
Do.....„ III,10
.
9 + + - - - + - +
IV
Do.
2 tubes of 10 cc.
„ . . .
. . . 1 1
1 0
+ + - - - + - +
IV
Do.
3 „ 5 cc.
„ . . .
. . .
. . .
. . .
3
3 „ 1 cc.
„ . . .
. . .
. . .
. . .
3
3 „ .1 cc.
„ . . .
. . .
. . .
3
3 „ .01 cc.
„ . . .
. . .
. . .
3
Fœcal bacilli present in 60 cc.
No vibrios in 100 cc.
REPORT.
The water as distributed to the town was in exceedingly good order on this occasion. The gratifying
feature of extremely low total counts is noted for the third time in succession and to this has been added
an almost vanishing number of fœcal organisms. If the water-supply could be kept at this level as regards
quality Dindigul would have little to fear from water-borne disease. As usual, the well water is not nearly
so good, although it has been much worse. The chemical condition of the water is unchanged.
V e r y d i s t i n c t l y h a r d a n d w i t h a g o o d d e a l o f s o l u b l e s a l i n e m a t t e r , o t h e r w i s e g o o d .