AnnualReport-1924

M(1)40

Table III.

BACTERIOLOGICAL ANALYSES OF LAI CHI KOK WATER SAMPLES.

Date. Description of samples. Pollution Index as C.C. Remarks. 15-1-24. Unfiltered water
Filtered
Tap water, Servant Quarters +
++
1 Raw water.
Below Standard.
Do. do. Tap, Servant's Quarter
Standard Oil Co. 2
2 Do.
do. 18-2-24. Unfiltered water
Filtered do.
Tap, Servants' Quarters, water works +++
5
1.2 Raw water.
Unsatisfactory.
'do. do. Tap, Servants' Quarters, Standard Oil Co. 50
50 Excellent.
Do. 10-3-24. Unfiltered water
Filtered do.
Tap, Servants' Quarters, filter beds. +
+
16
|
50 Raw water.
Do.
Above standard
Excellent. 14-4-24. Unfiltered water
Filtered do.
Tap, Servants' Quarters, water works
Tap, Coolies' Quarters, Standard Oil Co. ++1
50
1
2 Raw water.
Unsatisfactory.
Excellent.
Do. 12-5-24.
18-7-24.
20-8-24. Tap, Servants' Quarters, water works
do.
do.
Tap, Coolies' Quarters Standard Oil Co.
Unfiltered water
Filtered
Tap, Coolies' Quarters, filter bed
Tap, Coolies' Quarters, Standard Oil Co. 50
1++
50
+
1.12
7
[ +++++ |
I
50
50
1
1
50
50
50 Excellent.
Do.
Raw water.
Below standard.
Unsatisfactory.
Do.
Raw water.
Excellent.
Do.
Do.
Do. Unfiltered water
Filtered do.
Tap, Standard Oil Co.
Tap, Dairy Farm Co.