WATERS.
RESULTS EXPRESSED IN GRAINS PER IMPERial Gallon, (I IN 70,000).
Total
Dale.
Situation.
1900.
Solid Matter Chlorine. dried
at 100° C.
Ammo-
nia.
at 80° F.
Albu- Oxygen Nitrogen menoid absorbed in Nitrates Ammo- in 4 hours and nia. Nitrites.
Nitrites.
Sugar Test for the detection of
Sewage.
Poi-
sonous
metals.
Remarks.
Jan. 14 Well near Sau Tin Village,...
.5
.0056
Absent.
.021
.016
Absent. No trace of sewage indicated.
Absent.
"
15 Spring near San Tin Village,
.4
Absent.
.030
Absent.
71
"}
"?
19 Well at Gas Works, West Point,
38.0
2.7
.14
.0056
.033
23
11
24 Water from Kong Tsun River,
5.0
.2
.0028 .0028
.027
Absent.
"1
24
"J
""
from Tsing Pu River,
13.0
.0084 .0042
.040
.016
51
25 Well at 35, Queen's Road,
.056
.0336
Present.
""
"
Sewage indicated.
11
"}
>>
>>
11
Free sulphuric acid present.
Feb. 24 Water from Messrs. Lauts, Wegener & Co.,
3.7
.4
Absent. .0014
.010
.016
Absent.
May 29 Well near San Tin Village,.
4.8
.003
.0045
.190
June 14
near Ping Shan Village,.
20.8
4.2
.006
.003
.042
.200
"}
Aug. 10
Sept. 11
13
near Au Tan,
2.7
.6
Absent.
.010
228
.008
,,
at Sai Kung,
14.0
4.0
.010
.006
.00 1
.080
No trace of sewage indicated.
Traces of sewage
indicated.
Sewage indicated. Traces of sewage indicated.
No trace of sewage indicated.
""
11
"
"}
near Tong To,..
3.6
11
,,
**
near U Shek Kok,
3.0
Nov.
3 From Naval Condenser Tank, Wei-hai-wei,.
13 Well at No. 4, Lower Rutter Street,
1.6
خرية من
.003
.006
.108
.010
"
.003
.000
.016
.010
59
"9
"
11
.3
.0028
.0084
.399
Absent.
}}
7.2
.8
.003
.003
.160
.020
"
A
13
"
**
at No. 5, Dec. 3 Water from Military Swimming Bath,
"3
>>
7.3
.8
.003
.003
.009
.020
"
}}
:
1.5
.517
:
Trace of sewage
indicated. Sewage absent. Sewage present.
Slight
trace.
Absent.
Water fungi present in sediment.
Sediment consisted of animal and vegetable organic matter with numerous mosquito larvæ. Opinion was required, whether bath was fit for swimming in.
273