15
NELLORE.
WATER SAMPLES TAKEN—15TH MAY 1911.
REMARKS.—The sample was not taken from the river bed as it was dry. The supply is intermittent.
There was no rain since last analysis.
Bacteriological Analyses.
SAMPLE I.—TAP IN FRONT OF PUMPING STATION AT HEADWORKS
.
Nu mb 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 e .
V o g e s a n d P r o s k .
I n d o .
M o t i l i t y .
Gr oup.
Name of Bacilli. Group and
Remarks.
Total colonies per cc. on agar at 37° C.—3,700.
Bile salt lactose, medium.
+ -
1 tube of 20 cc. ... ... ... ...
1
. . . 1 + + + + - + - - I I I B. 67
.. ... Group I, nil.
2 tubes of 10 cc. ... ... ...
2
. . . 2 + + + + - + - - I I I Do. ...
„ II, nil.
3 „ 5 cc.
... . . .
. . .
3
. . . 3 + + + + - + - - I I I Do.
. . .
...
„ III, 10.
3 „ 1 cc. ... ...
...
2
1
4 + + + + - + - - I I I Do.
. . .
...
„ IV, nil .
3 „ .1 cc. ... ... ...
. . .
3
5 + + + + - + - - I I I Do.
3 „ .01 cc. .. ... ... ...
. . .
3
6 + + + + - + - - I I I Do.
7 + + + + - + - - I I I Do. ... ...
Class I, nil.
Fœcal bacilli in 1 cc. and upwards.
8 + + + + - + - - I I I Do.
...
„ II, 10.
9 + + + + - + - - I I I Do.
...
„ III, nil.
No vibrios in 100 cc.
1 0 + + + + - + - - I I I Do.
...
S A M P L E I I — T A P I N E A S T E R N C O R N E R — F O U N T A I N N o . 3
NAVVAPET. 1 + + - + - + - - IV B. Lactis ærogenes. Group I, nil.
2 + + - + - + - - IV
Do.
„ II, nil .
Total colonies per cc. on agar at 37° C.—150.
3 + + - + - + - - IV
Do.
„ III, nil.
4 + + - + - + - - IV
Do.
„ IV, 10.
Bile salt lactose, medium.
+
-
5 + + - + - + - - IV
Do.
6 + + - + - + - - IV
Do.
1 tube of 20 cc. ... ...
...
. . .
1
7 + + - + - + - - IV
Do.
8 + + - + - + - - IV
Do. ...
Class I, nil.
9 + + - + - + - - IV B. Gasoformans . . . „ II, 10.
2 tubes of 10 cc. ... ...
...
1 1
1 0 + + - + - + - - IV B. Lactis ærogenes... „ III, nil .
3 „ 5 cc. . . .
. . .
. . .
. . . . . .
3
3 „ 1 cc. . . .
. . .
. . .
. . . . .
3
3 „ .1 cc. . . .
. . .
. . .
. . . . . .
3
3 „ .01 cc. . . .
. . .
. . . . . .
3
F œ c a l b a c i l l i p r e s e n t i n 6 0 c c .
No vibrios in 100 cc.
SAMPLE
III.—TAP IN SOUTHERN CORNER IN FRONT OF DISTRICT
COURT—FOUNTAIN No. 52
.
1 + + - - - + -
+
IV B. Cloacæ ... ... Group I, nil .
2 + + - - - + - - IV B. 112 ... ...
„ II, nil.
3 + + - - - + - - IV Do.
. . .
...
„ III, nil.
Total colonies per cc. on agar at 37° C.—120.
4 + + - - - + - + IV B. Cloacæ ... ... „ IV, 10.
5 + + - - - + - - IV B. 112.
Bile salt lactose, medium.
+
-
6 + + - - - + - - IV Do.
7 + + - - - + - - IV Do.
1 tube of 20 cc.
. . .
. . .
...
1
. . .
8 + + - - - + - - IV Do. ... ..
Class I, nil .
2 tubes of 10 cc.
. . .
...
1
1
9 + + - - - + - - IV Do.
...
„ II, nil.
3 „ 5 cc.
...
. . . . 3
1 0 + + - - - + - - IV Do. ... ...
„ III, 2 . U n d e t e r m i n e d , 8 .
3 „ 1 cc. . . .
. . .
. . .
. . .
. . .
3
3 „ .1 cc. ... ... ... ...
. . .
3
3 „ .01 cc.
... ... . . .
3
Fœcal bacilli in 10 cc. and upwards.
No vibrios in 100 cc.
REPORT
.
This quarter no sample was available from the river representing unfiltered water. The sample from
the head works shows a deterioration of about sixty fold as compared to last quarter's analysis; the water
from the distributary system however still remains good
.
Chemically all the samples are hard and saline ; the sample from the distributary system appears to
contain more organic matter than that from the headworks
.