End/Wednesday, July 5, 1995
Beach
WATER QUALITY GRADINGS AT BEACHES WITH SEWERAGE IN THE VICINITY
Before Commissioning of Sewerage Bathing season
geometric mean E
coli count per 100 mL.
Health risk (cases of minor illness per 1,000 swimmers)
After Commissioning of Sewerage Bathing season
geometric mean E coli count per 100 mL of seawater (1994)
Health risk (cases of minor illness per
1,000 swimmers)
Hong Kong Island South District
Chung Hom Kók
Repulse Bay
Deep Water Bay
Tuen Mun District
Butterfly
New Cafeteria
Golden Beach #
Old Cafeteria
Kadoorie
Castle Peak
Note: ND
No data
#
of seawater (1992)
ND. Sewerage provided many years ago.
26
18
0.4 undetectable
40
2
317
12
175*
229*
ND
ND
206
10
731
16
301
12
267*
11
210*
10
1187
18
243
11
New beach gazetted in 1994
Changes in E. coli level are statistically insignificant
GRADING SYSTEM
Grade
1
2
3
4
Bathing season geometric mean E. coli count per 100 mL of seawater
up to 24
25 to 180
181 to 610
more than 610
Health risk (cases of minor illness per 1,000
swimmers) undetectable
10 or less
11 to 15
more than 15
-
59
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