| Beach
Water Quality Report 1986 - 2000
Chapter
5: Beach Water Quality Update
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The trend of improving water
quality since 1995 had been
maintained at the gazetted beaches
in Hong Kong in 2000. Among
the 41 gazetted beaches, 21
were found to be in "Good"
condition, 14 were "Fair"
and 6 were "Poor"
(Figure 5.1). No beach had the
worst rank, "Very Poor".
The percentage of gazetted beaches
complying with the WQO is 85%,
which is the highest record
over the past 15 years. All
the 9 non-gazetted beaches monitored
also complied with the WQO (Figure
5.2).
As in 1999, except the six
Tsuen Wan beaches, all other
gazetted beaches had either
"Good" or "Fair"
water quality and complied with
the WQO. Although the total
rainfall recorded during the
bathing season in 2000 was higher
than that in 1999, there was
only slight increase in the
E. coli levels in beach
water due to the rainfall effect.
Compared with 1999, only the
rank of Clear Water Bay Second
Beach had been changed, but
the change was statistically
insignificant.
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| Figure
5.1 |
Ranking
of gazetted beaches in 2000 |
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| Figure
5.2 |
Ranking
of non-gazetted beaches
in 2000 |
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Southern
District
In general, beaches on the
south of Hong Kong Island have
"Good" water quality.
The three beaches on the east
of Hong Kong Island, namely
Big Wave Bay, Rocky Bay and
Shek O had "Fair"
water quality. Since septic
tank and soakaway pit systems
are still used in the hinterland
of these three beaches, they
are more susceptible to pollution
caused by heavy rainfall.
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Sai
Kung District
Except the Silverstrand and
Clear Water Bay Second beaches
which were ranked "Fair",
all other beaches in Sai Kung
had "Good" water quality
in 2000. Although most of the
houses in Sai Kung are unsewered,
the general water quality of
all Sai Kung beaches could always
comply with the WQO. Even for
the Silverstrand Beach which
has a lot of septic tanks, soakaway
pit systems and private sewage
treatment plants in the hinterland,
its water quality has seldom
deteriorated beyond "Fair".
This is mainly contributed by
the efforts of EPD in arousing
the environmental awareness
of villagers to carry out regular
maintenance of their sewage
treatment systems and in enforcing
the law to stop illegal discharges
in the beach hinterland.
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Islands
District
All the beaches in the Islands
District had complied with the
WQO in 2000. Only one beach,
the Silvermine Bay Beach was
ranked "Fair", while
all other beaches in the Islands
District had "Good"
water quality. As there are
many septic tank and soakaway
pit systems located close to
the Wang Tong Stream and River
Silver, pollutants could be
easily flushed out from these
systems by rain into the Silvermine
Bay causing transient deterioration
of water quality at the beach.
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Tuen
Mun District
The general water quality of
all the beaches in the Tuen
Mun District had significant
improvement in the last three
years. The annual ranks of all
Tuen Mun beaches had changed
from "Poor" before
1998 to the current "Fair"
status. In 2000, this trend
of improvement of water quality
has been maintained and all
Tuen Mun beaches could meet
the WQO.
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Tsuen
Wan District
The water quality of the beaches
in Tsuen Wan is comparatively
worse than that in other districts.
In 2000, six out of the eight
beaches were ranked "Poor"
and two were "Fair".
The general water quality of
the Tsuen Wan beaches has improved
since 1997, and the water quality
of Ting Kau, Approach and Anglers'
beaches has improved from the
"Very Poor" rank to
"Poor" rank. The improving
trend is due to the concerted
efforts of enforcement by EPD
and the completion of sewerage
work in the Tsuen Wan town area.
It is envisaged that with the
completion of the planned improvement
works and provision of sewerage
in the beach hinterland in 2005,
the water quality of the Tsuen
Wan beaches will improve further.
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| Approach
Beach |
1997 |
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