WATERS.
Results expressed in Grains per Imperial Gallon, (1 in 70,000).
Total
Oxygen Nitrogen
Solid
Date.
Situation.
Depth.
matter Chlorine. dried at
100° C.
Saline Albume
noid Ammonia. Ammonia.
absorbed
in 4
hours at
80° F
in
Sugar test for the detec-
Nitrates Nitrites.
and
Nitrites.
tion of Sewage.
Poisonous
Metals.
General Remarks.
10
1901.
Jan. 24
Well at Jardine's Gardens (Ver- milion Factory,........
18.3
2.4
.010
.010
.003
.030
Absent.
No trace of Sewage indicated.
Absent.
Feb. 15
Well at Sha Tau Kok between
some Chinese vegetable gar- dens,..........
2.6
.7 Absent. Absent.
.019
Absent.
55
15
そう
Well at Sha Tau Kok at the bottom of a hill,
4.8
.5
.002
"}
""
""
April 23 Spring at Li-chi-kok,
5.0
.5
.0014
>>
.030
.008
>>
May 3 Spring at Sai Kung,
4 feet.
6.3
1.4
.0056
.0014
.013
.008
>>
June 5
Well at No. 14 Des Voeux Road Central,
2.9
.0112
.0147
Present.
J
Sewage indicated. 25 grain of lead per gallon.
Odour, Phosphorous. Animalcula present.
July 17
Well at Hunghom West,
18 feet.
9.7
2.0
.0056
.0028
.013
.288
Absent.
17
Well at Hunghom at the back of the market,
37 feet.
15.7
4.2
.0252
.0112
.253
17
Well in Dock Street, Hunghom,.. 21 feet.
9.3
1.8
.0056 .0028
.010
.172
>>
No trace of Sewage indicated.
Sewage indicated.
No trace of Sewage indicated.
Absent.
Odour unpleasant.
""
Aug. 7 Well at Sa Mun Station,
6.0
1.1
Absent. .0028
.027
Absent.
34
#1
>>
Oct. 29
Well at Tai Po,
5.0
.6
.0014 .0014
25
,"
761