17
SAMPLE V.—FROM A TAP IN WESTERN CORNER IN KILCHUPET ROAD. Total colonies per cc. on agar at 37° C.—350. |
Number. | Lactose. | Saochrose. | Dulnite. | Adonite. | Inuline. | Voges and Prosk. |
Indol. | MOtility. | Group. | Name of Bacilli. | Group and Remarks. |
||
Bile salt lactose, medium | + | – | ||||||||||||
1 tube of 20 cc. | 1 | 1 | + | + | – | – | – | – | + | – | IV | B. Coscoroba. | ||
2 tubes of 10 cc. | 2 | |||||||||||||
2 | + | + | – | – | – | – | + | – | IV | Do. | Group I, nil. | |||
3 " 5 cc. | 3 | |||||||||||||
3 | + | + | – | – | – | – | + | – | IV | Do. | " II, nil. | |||
3 " 1 cc. | 3 | |||||||||||||
4 | + | + | – | – | – | – | + | – | IV | Do. | " III, nil. | |||
3 " 1 cc. | 3 | |||||||||||||
5 | + | + | – | – | – | – | + | – | IV | Do. | " IV, 10. | |||
3 " .01 cc. | 3 | |||||||||||||
6 | + | + | – | – | – | – | + | – | IV | Do. | ||||
7 | + | + | – | – | – | – | + | – | IV | Do. | ||||
Fcecal bacilli in 5 cc. and upwards. No vibrios in 100 cc. |
||||||||||||||
8 | + | + | – | – | – | – | + | – | IV | Do. | Class I, nil. | |||
9 | + | + | – | – | – | – | + | – | IV | Do. | " II, 10. | |||
10 | + | + | – | – | – | – | + | – | IV | Do. | " III, nil. |
REPORT
Ādōni water is always characterised by the large amount of organic matter it contains. This organic
matter varies a good deal both as regards quantity and quality. On the present occasion it shows the high
nitrogen carbon ratio associated with animal organic matter. Bacteriologically the water is not at all bad, but
the water in passing through the pipes acquires high total counts that were absent from the water at the
headworks; this is a very usual state of affairs at Adoni.
Chemical Analyses.
SAMPLE II. | SAMPLE V. | ||
Physical appearances. | Colour and Transparency. |
Yellowish and opaque. | Yellowish and hazy. |
Smell. | None. | None. | |
QUANTITATIVE. | |||
Total solids | Parts per 100,000 | 18.40 | 18.000 |
Temporary hardness | Do. | 5.000 | 5.000 |
Permanent hardness | Do. | 1.500 | 1.500 |
Total hardness | Do. | 6.500 | 6.500 |
Chlorine | Do. | 1.420 | 1.242 |
A mmoniaoal nitrogen | Do. | 0.003 | 0.007 |
Albuminoid nitrogen | Do. | 0.085 | 0.045 |
Oxygen absorbed (Tidy's Process) | Do. | 0.256 | 0.192 |
Nitric nitrogen | Do. | Nil. | Nil. |
QUALITATIVE. | |||
Nitrites | Nil. | Nil. | |
Sulphates | Present. | Present. | |
Phosphates | Nil. | Nil. | |
Iron, poisonous metals | Nil, nil. | Nil, nil. |