香港泳灘水質 2013 Beach Water Quality in

為更佳泳灘水質而努力 Strive for better beach water quality

環境保護署 香港特別行政區政府 Environmental Protection Department The Government of the Hong Kong Special Administrative Region Our Mission : To safeguard the health and welfare of the community and meet conservation goals by working to achieve and maintain the Water Quality Objective for bathing beaches

Beaches in Hong Kong are popular spots for a wide range of outdoor activities

1 Introduction

Hong Kong has many beautiful and attractive beaches with white sands along its long and twisting coastline. Each year, millions of beach-goers enjoy bathing in these beaches with clean water.

The objective of the Environmental Protection Department (EPD)'s Beach Water Quality Monitoring Programme is to monitor beach water quality and protect the health of bathers. The background and details of the EPD’s monitoring activities can be found at its Hong Kong Water Quality Resource Centre (HKWQRC) website (http://wqrc.epd.gov.hk) or its beach water quality thematic website (http://www.beachwq.gov.hk).

Kids playing together at Butterfly Beach

2 This report summarises the beach monitoring data collected in 2013, the gradings of the beaches and their annual compliance with the Water Quality Objective (WQO) for bathing beaches. In 2013, the EPD monitored 41 gazetted beaches and three non-gazetted beaches in different parts of the territory. The gazetted beaches were monitored weekly during the bathing season from March to October. EPD staff made field observations and collected samples for laboratory analyses of Escherichia coli (E. coli) as the bacteriological water quality indicator. EPD staff also took measurements of dissolved oxygen, pH, salinity, temperature and turbidity of beach water.

EPD staff monitoring beach water quality

Bacterial testing of beach water at EPD's laboratory

3 Hong Kong's beaches are assessed using a dual system: annual ranking and weekly grading which are both based on the E. coli level in beach water to indicate potential health risks associated with swimming. The annual ranking reflects the overall water quality of the beach over the entire bathing season, while the weekly grading denotes the recent water quality of the beach. Under the dual rating system, beaches are categorised into "Good", "Fair", "Poor" and "Very Poor". Those ranked "Good" and "Fair" meet the WQO for bathing waters. Beach water quality grading board

Annual Beach Ranking in 2013

All 41 gazetted beaches in Hong Kong complied with the WQO in 2013. Although the total rainfall recorded during the bathing season in 2013 (2671 mm) was 54% higher than that in 2012 (1733 mm), there were only occasional increases in the E. coli levels in beach water, which were recorded mostly for beaches in the western side of Hong Kong. Compared with the ranking in 2012, the number of beaches ranked as "Good" has increased from 23 Scenic Clear Water Second Bay Beach (or 56 %) to 24 (or 59 %) and the number of beaches ranked as "Fair" has changed from 18 (or 44%) to 17 (or 41%). No beach was ranked as "Poor" or "Very Poor" in 2013.

4 The beaches with a "Good" water quality ranking were largely located in the Southern District ( South), Outlying Islands and Sai Kung. All 12 beaches in the Southern District were ranked as "Good" in 2013. Of the nine beaches on the Outlying Islands, seven were "Good" while and were rated as "Fair". The - bathers enjoying the clean sand ranking of Pui O Beach has changed to “Fair” but the change was not statistically significant. In the Sai Kung area, five beaches were "Good" in 2013 with rated as “Fair”. On the western side, all six beaches along the Tuen Mun coast and all eight beaches in the received a "Fair" ranking in 2013.

The water quality of the Tsuen Wan beaches has been stable in 2013 following improvement in previous years, which is mainly due to the smooth operation of the Advance Disinfection Facilities (ADF) of the Stonecutters Island Sewage Treatment Works since March 2010, and the completion of the sewerage works in the hinderland of the beaches.

Since all the Tsuen Wan beaches have achieved the WQO for bathing, four previously closed beaches, namely , Casam Beach, and , have been reopened to the public for swimming since June 2011. After the upgrading of beach facilities, Anglers' Beach has also been reopened for swimming since September 2013. For the remaining and Gemini Beaches, the Leisure and Cultural Services Department plans to reopen them for public use after the completion of the improvement works in the swimming season of 2014.

5 EPD also monitored three non-gazetted beaches in Hong Kong: Discovery Bay (a popular beach on Lantau Island), a sandy beach adjacent to Kiu Tsui Beach in Sai Kung, and a planned artificial beach in Lung Mei, Tai Po. Discovery Bay and the beach adjacent to Kiu Tsui Beach continued to be ranked as "Good" in 2013. Similar to 2012, Lung Mei was ranked as "Poor" in 2013. The public sewerage network is being extended to villages in the Lung Mei area, and other pollution abatement measures will be implemented to improve the water quality.

Weekly Beach Grading in 2013

The EPD issues weekly gradings of gazetted beaches which are open for swimming. The information is disseminated to the public through weekly press release, EPD's websites, the beach enquiry hotline, GeoInfo Map of the GovHK website and beach noticeboards.

Hong Kong beaches offer respite from hustle and bustle of city life

In 2013, the water quality of beaches in the Southern District was largely satisfactory. Ten gazetted beaches received mostly "Good" or "Fair" grading in the bathing season, while St. Stephen’s Beach and Stanley Main Beach were rated as “Very Poor” on a few occasions after heavy rain. South Bay Beach had the best water quality, achieving "Good" gradings on all rating occasions.

6 The water quality of the Sai Kung beaches was also generally good with weekly grading mostly "Good" or "Fair". Kiu Tsui Beach was rated as “Very Poor” on two occasions after heavy rain.

The beaches on the Outlying Islands were generally very suitable for swimming, with Hung Shing Yeh and Upper Cheung Sha Beaches achieving 100% "Good" gradings. Cheung Chau Tung Wan, Kwun Yam, Lo So Shing and Tong Fuk Beaches achieved "Good" gradings over 80% of the rating occasions. Cheung Chau Tung Wan, Kwun Yam, Lo So Shing and Pui O Beaches were rated once as “Very Poor” after heavy rain.

The water quality of the beaches in the Tuen Mun area was generally fine and nearly all graded as "Good" or "Fair".

The water quality of beaches in Tsuen Wan was generally satisfactory with gradings maintained mostly at either "Good" or "Fair". Except Approach Beach, other open beaches were rated as “Very Poor” on one or a few occasions after heavy rain.

Scenic (Lamma Island)

7 Water Quality Trend

The beach water quality in Hong Kong is able to fully comply with the WQO for the last four years. The percentage of beaches complying with the WQO had changed from 74% in 1986 (29 of 39 beaches) to 63% (26 of 41 beaches) in 1997, and then improved to 100% since 2010 for all 41 gazetted beaches.

Comparison of annual beach ranking of gazetted beaches in 1986, 1997 and 2013

41.5% 17.9% 29.3% (17) (7) (12)

7.7% 7.3% 51.3% (3) (3) (20) 39.0% (16) 23.1% 24.4% 58.5% (9) (10) (24)

1986 1997 2013

Annual Rank Good Fair Poor Very Poor WQO compliant WQO non-compliant ( ) No. of beaches Note: Two beaches degazetted in 1995 were excluded from the calculation.

Back in the 1980s, many beaches were either closed, such as Cafeteria Old Beach, and Silver Mine Bay Beach, or on the verge of being closed (e.g. Beach and ) because of poor water quality.

There was a further drop in compliance rate in the mid-1990s due to population growth particularly in the new town areas. Since then, there has been progressive improvement in the last decade as a result of enforcement of environmental legislation, extension of the sewerage network and provision of new sewage treatment facilities across the territory including the beach hinterland. Major improvement measures implemented in the past are summarized in the following table.

8 Major improvement measures for the beaches since the implementation of beach water quality monitoring programme in 1986 1986 – 1990  Implementation of the Livestock Waste Control Scheme under the Waste Disposal Most beaches, particularly (Livestock Waste) Regulation. Silver Mine Bay Beach

 Declaration of the Southern Water Control Zone (WCZ) under the Water Pollution Southern beaches Control Ordinance (WPCO) and legislative enforcement.

 Interception and diversion of polluted storm drains at beaches in Southern District. Southern beaches 1991- 1995  Implementation of chemical waste control. All beaches

 Declaration of the North Western WCZ under the WPCO and legislative enforcement. Tuen Mun beaches  Diversion of polluted storm water drains away from Castle Peak Beach.  Provision of public sewers for So Kwun Wat and Sam Shing Estate.

 Commissioning of Stanley Sewage Treatment Works (STW). Stanley Main Beach 1996- 2000  Full implementation of the WPCO in all WCZs. All beaches

 Commissioning of the Shek O Sewage Screening Plant and diversion of polluted storm water drains at Shek O Village .  Completion of all major works under the Southern Sewerage Master Plan. Southern beaches

 Commissioning of the new 2 km long Pillar Point sewage submarine outfall. Tuen Mun beaches 2001 - 2005  Completion of Harbour Area Treatment Scheme Stage 1. Big Wave Bay, Shek O, Rocky Bay Beaches  Provision of public sewers in the Silverstrand area. Silverstrand Beach

 Full operation of the Sham Tseng STW . Beaches along the Tsuen Wan coast 2006 - 2013  Commissioning of the Advance Disinfection Facilities at the Stonecutters Island STW. All Tsuen Wan beaches

 Extension of the public sewerage network to the beach hinterland along Castle Peak Beaches along the Tsuen Wan Road. coast

9 Through continuous efforts of the government to implement pollution abatement measures over the years, there was significant improvement at the beaches in various districts in the last few years. Improvement at Silver Mine Bay Beach, Castle Peak Beach and Repulse Bay Beach was most remarkable as the beaches have consistently complied with the WQO in recent years. All beaches in Tsuen Wan have met the WQO since 2010. To sum up, all of Hong Kong's bathing beaches have now achieved the required standard for swimming.

Compliance with WQO at gazetted beaches, 1997 - 2013

100% 100% 100% 100% 100%

95% 93%

90%

85% 85% 85% 83% 83% 83% 83% 83% 83% 83% 80% 80% 78%

Compliance 75%

% 70%

65% 63%

60% 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013

10 Water quality trend lines of gazetted beaches over the last 28 years are included in this report to show the changes over the years. More in-depth background and details of the beach monitoring programme are available at the EPD's Hong Kong Water Quality Resource Centre (HKWQRC) website (http://wqrc.epd.gov.hk) or its beach water quality thematic website (http://www.beachwq. gov.hk), which provides user-friendly access to the annual beach reports as well as data published since 2000.

Fun for all ages at Castle Peak Beach

11 Beaches monitoredbytheEPD T T 14. 13. 12. Lido 1 10. HoiMeiW 8. 7. MaW 6. Golden 5. CafeteriaNe 4. CafeteriaOld 3. Kadoori 2. CastlePeak 1. Butterfly 9. Gemini 1 suen W uen MunDistric . Casam Anglers Approac T ing Kau an an District ' e h T T ung W uen MunDistric an 20 w 19 t an 18 1 2 17 Legend : 16 3 2 21 18. LowerCheungSh 23. HungShing 22. Kwun 21. CheungChau 24. LoSoShing 20. 19. UpperCheungSh 17. PuiO 15. [DiscoveryBay] 16. SilverMineBa 4 15 T 5 ong Fuk t 6 7 Islands Distric Y T 8 am suen W 9 Gazetted beach

Y 10 eh

T y 24 23 ung W 1 1 an District a a 12 an 13 t T 3 ai PoDistrict 14 25 34 27. [Kiu 32. ClearW 31. ClearW 30. Silverstran 29. 28. HapMunBa 26. Kiu Sai KungDistrict 25. [LungMei T Southern Distric ai PoDistrict 35 T rio 36 T T sui sui (New) 37

ater BaySecond ater BayFirst [Non-gazetted beach] ] 38 d 32 31 30 29 28 27 26 y 39 ] t Sai KungDistric 40 41 42 33. DeepW 44. BigW 43. RockyBay 42. ShekO 41. 40. Hairpi 39. StanleyMai 38. St.Stephen's 37. ChungHomKo 36. SouthBay 35. MiddleBa 34. RepulseBa Southern District T 43 urtle Cove t 4 n ave Bay ater Bay y y n k 12

The Monitoring Programme s once once at least 3 time s Beache and Non-bathing season Non-bathing

erstr

* s s s s , Golden and Silv Golden , y a Monitoring frequency per month Monitoring frequency at least 3 time at least 3 time at least 3 time ater B ater W Bathing season y Second, Deep Deep Second, y a ater B

Beach

arch to October arch

open all year round ** open all year round Gazetted beaches Clear W M

Non-gazetted beaches Other gazetted beaches * Beach monitoring frequencie monitoring Beach ** 13

The Monitoring Programme water temperature dissolved oxygenand Record beachconditions, On-site measurments W

a the BeachMonitoringProgramme Overview ofvariousstages

andannualrankings t Calculate weekly gradings Calculate weekly Data processing D er a t S a a m C p

o l i

l n l

a g

t

i & o n

F

Water sampling

i

e

l

d

D

a

t

a

Inf R

or e

m c

a o

t r

io d

i

bacteriaonmembrane n

n Water sampleisfilteredtoretain Membrane filtration D g is s Samples keptat4°C

e and testedwithin

Hotline m

i 6 hours n

a

t

i

o Bacteriological Analysis n noticeboard Beach - E.coli Greenishbluecolonies

Counting of bacteria L Physical Parameter Analysis Physical turbidity pH, salinityand Measurement of

Websites a

b

o

r

a

t

o

r

y

T

e

18 -24hours conditions for at 44.5ºCinaerobic with culturemedium Membranes areincubated Incubation s

t

i

n g 14

The Monitoring Programme . t Complian <10 >15 Non-compliant Non-compliant m 11-15 e WQO Complianc m Undetectable Minor illness rate** (Cases per 1,000 swimmers) >15 <10 11-15 Undetectable * rate* illness Minor <24 25-180 181-610 (Cases per 1,000 swimmers(Cases per 1,000 ) >610

counts per 100 mL* or last reading >1,600 or E. coli r y d <24 >610 25-180 181-610 Fair r Poo Goo counts per 100 mL* counts per 100 count calculated based on all data collected between March and October and March between collected on all data calculated based coli count E. Very Poo Beachr wate qualit E. coli r dd

1 3 4 2 Grade Fair Rank r Poo

GooGoo

Skin and gastrointestinal illnesses and Skin Skin and gastrointestinal illnesses and Skin Very Poo count represents the geometric mean of the 5 most 5 the of mean geometric the represents count coli the E. Unless otherwise indicated, * Geometric mean Geometric * Hong Kong's weekly beach grading syste Hong Kong's weekly Hong Kong's annual beach ranking syste ranking beach Kong's annual Hong recent sampling occasions. recent ** ** 15

The Monitoring Programme Hong Kong'sgazettedbeache C C h l e e C a u r l n M e

U L W g a o a p

r w a D

C C p H

W W S t e e e h h u e C B i r r e a a u l H n r a S C

v S H

i R a C p C n u n g g L t B C e a S t a T e t f o

.

g e M

o

h h K a e R r p W a

T T a f i S S W r u i

S l

p e

e e A n

T t

v y M w H i st u o u S T K r M e h o B M d u t t u a u B l e

t o K a p A n e ck n e e u r i o S i u o l S a i d l a l G n C t n n n G H e e r n u e n i se v p u g r i g y p n e n a m t

st d l u e y h g i g g g

i e e e n h

S P g y r t a o a

a

e

h g r

C

P o

t

co o M e W W W

Y r

N

F

e L T l i h sa

u m e l S S K Y B T B B B B B K B B o d a r F a e o e k O a r i i a p i i e su n d r e r n a h n a n r h a a e

a a a a a a o a u ch a a v f r i m m O i st O l i i i n w l ' s' o e n d n d n a d n n o g e a u n h y y y y y y y s k y k y k i i Bathing seasongeometricmean 24 s 2013annualranking E. coli(countsper100mL) 180 610 (58.5%) (41.5%) Good Rank Fair 16

2013 Findings

1% 78% 1%

61% 21% 38% t Sai Kung Distric Southern District otal no. of grading occasions: 207 otal no. of grading occasions: 347 4 T T Very Poor 3 Poor 3% 1% 7% 2 Fair 1 Good Good Tsuen Wan District Wan Tsuen

otal no. of grading occasions: 219 otal no. of grading occasions: T 88% Note: Figures may not add up to 100% due to roundings 14% 1% 5% Beach Grade 27%

Outlying Islands uen Mun District T otal no. of grading occasions: 210 otal no. of grading occasions: 307 by district in 2013 by district Weekly beach grading summary of gazetted beaches beaches of gazetted summary grading beach Weekly T T 71% 81% 17

2013 Findings Annual Rankingofgazetted beachesataglance 2013 BeachRankings Good Tuen MunDistrict Fair Tsuen Wan District Islands District Southern District Sai KungDistrict 18

2013 Findings s

y . . y a y B

it r r e v a 49% W

y* ater qualit ater 51% g a i w 4 B ater qual ater w ocky B Very Poo Very Poo R Beaches closed for reasons closed * Beaches than other

y O a Shek O 3 k Beaches closed for reason for closed * Beaches than other

e 65% 35% h e B * r Poo r Poo S v Shek O y a D'AGUILAR PENINSULA y a W Big e B ocky Ba 2 v

R Fair Fair 9% a e D'AGUILAR PENINSULA e v v o C s e l 91% t r W Big * u T d d s urtle Co * T ANLEY 1 Stanley Main PENINSULA ST n Hairpi Goo Goo St. Stephen' St. 6%

ok % s ' y n Hairpi y n 11 e a e v y h Stanley Main k p e ANLEY y Ba 83% St. Stephen' a Ste

. t PENINSULA ST South B S Middle Ba y ater B urtle Co epulse Chung Hom K T R W 3% n i Deep a ater Ba M Annual Ran Beach Grad

W 53% ley n y ok a 44% a y t K S Deep Ba y

a g 3%

y Middle B k 9% a

17% o

epulse y B K y

y a

r R a a B e South B B m B t Chung Hom o a h se le l H t 100% 26% 97% 74% 83% 91% W d u

u g d p p i o

Note: “*” Closed beaches. No grading was made Note: n e e S M u e R h D C eekly grading Annual rankin Southern District beaches District Southern W 19

2013 Findings Sai Kungbeaches Annual rankin W eekly grading Silv 76% Kiu T 33% erstrand T 61% 85% rio sui 24% 15% 6% g Clear W Silv Beach Grad Annual Ran SAI KUNG ers BA JUNK 54% ater B tr Y an 46% d a T y First SHEL POR Ba Clear W rio Silv y Firs e k SAI KUNG BA JUNK erstr TER T Hap Mu Y ate t and Kiu T Clear W Ba T r Goo Goo rio y SHEL PORT 1 sui Ba Clear W Clear W Hap Mun n d d y First CHAU SAI KAU TER Ba ater y Kiu T Clear ater Ba ater Ba sui Fair Fair 59% y Secon W 2 41% CHAU SAI KAU ater B y Second a y Second d Poor Poor 3 Very Poo Very Poo Hap Mun Ba 4 91% r r 9% y 20

2013 Findings YI

YI

r

r 86% 14% TSING TSING

AN au* Approach AN ApproachK Approachau* 4 Ting Lido Very Poo

Ting K TSUEN W an

Lido 3%

Casam Very Poo 3% TSUEN W an

Casam an Hoi MeiGemini W * W 95% an Lido 3 r Poo an

ung r Poo W Ma W T Hoi MeiGemini W * an D Anglers' W ung AU AU Ma T Anglers’ Fair LANT ISLAND 3% 2 LANT ISLAN Fair 3% 95% SHAM TSENG Closed beaches. No grading was made. Casam d dd SHAM TSENG 1 Goo an GooGoo W 3% 3% 94% ung k e an T W Ma 3% Annual Ran Beach Grad 8% Closed beaches * Closed 89% s Hoi Mei Wan Hoi Mei g

8% Anglers’ * Closed beache 69%

22% Note: Figures may not add up to 100% due to roundings; “*” eekly grading Annual rankin Tsuen Wan beaches Tsuen W 21

2013 Findings W Tuen Munbeaches Annual rankin eekly grading Castle P Note: Figuresmaynotaddupto 100%duetoroundings K 66% Butterfly 83% 83% adoorie 14% TUEN MUN 9% Butterfl 9% 20% eak 17% y g TUEN MUN Cafeteria Old Castle P Beach Grad Annual Ran 91% Butterfly K adoorie Cafeteria Ol ea Cafeteria Ne 9% Castle Golden k P e K eak k adoorie d Cafeteria Old Cafeteria New w Golden Goo Goo Cafeteria New 1 83% d d 6% Fair Fair 11 2 % Poor Poor 3 80% Golden Very Poo Very Poo 20% 4 r r

22

2013 Findings 3% r r eh Y 97% ISLAND eh Y 4 Lo So Shing So Lo ISLAND g Lo So Shing So Lo LAMMA Very Poo Very Poo Hung Shing Hung LAMMA am Hung Shing Hung 3 Lo So Shin So Lo eh an Y r Poo r Poo W u wun Y K am ung T Cheung Chau Cheung an 100% W CHEUNG CHAU U wun Y 2 Fair K y Fair Hung Shing Hung ung T Cheung Cha Cheung d dd er Mine Ba er 3% 1 Pui O Silv am CHEUNG CHA Goo GooGoo Lower Cheung Sha Lower Cheung 17% y 80% wun Y Ba K ong Fuk T AU ISLAND k e Pui O LANT k an er Mine er W a 3% Silv ung ong Fu ong T T u 17% a Upper Cheung Sha Upper Cheung AU ISLAND 80% Annual Ran Beach Grad LANT Cheung Cha Lower Cheung Sh Cheung Lower g y 3% a

9% 3% 17% Upper Cheung Sh Cheung Upper 23% 37% 78% 100% Pui O Pui

91% 63% ong Fuk ong 77% er Mine B er T Note: Figures may not add up to 100% due to roundings Silv eekly grading Upper Cheung Sha Cheung Upper Lower Cheung Sha Lower Cheung Annual rankin Outlying Islands beaches Islands Outlying W 23

2013 Findings Percentage of WQO-compliant beaches 100 80 20 40 60 0 from 1986to2013 Annual beachrankingsofgazettedbeaches Comparison ofannualbeachrankinggazettedbeaches in 1986and2013 86 39 (3) (7) (20) (9) 87 40 (5) (9) (21) (5) 88 40 Note: Legend :()Numberofbeachesineachrank (7) (7) (19) (7) 89 40 (13) (2) (7) (18) Annual Ran

T 51.3% 40 90 wo beachesdegazettedin1995wereexcludedfromthecalculation. (20) (2) (5) (19) (14) Note: 91 40 (7) (2) (14) (17) 1986 92 40 (3) (7) (14) (16) k T 40 93 wo beachesdega (12) (3) (10) (15) 94 40 (13) (2) (1 (14) WQO complian Goo 1) 95 41 (14) (4) (13) (10) 23.1% d 96 41 (9) (4) (10) (14) (13) 17.9% 97 41 (7) (3) (12) (16) (10) Fair 7.7% z 98 41 etted in 1995 were e (3) (1) (8) (16) (16) t 99 41 (6) (13) (22) WQO non-complian Poor 00 41 (6) (14) (21) 01 41 (2) (5) (21) (13)

T otal numberofgazettedbeaches 02 41 (6) (2) (10) (23) Poor Very 03 41 (1) (1 (6) (23) 1) x 04 41 cluded fromthecalculation. 2013 (2) (5) (9) (25) t 05 41 (23) (1 (6) (1) 1) 06 41 ( ) (2) (5) (12) (22) 41 07 (7) (9) (25) No 41 08 58.5% . ofbeache (7) (24) (10) (24) 09 41 (3) (15) (23) 41.5% (17) 41 10 (18) (23) 41 11 (10) (31) s 41 12 (18) (23) 13 41 (17) (24) Goo Poor Rank Poor Very Fair d 24

Water Quality Trend 2013 2013 Southern District

1997 1997 0 0

60 50 30 20 10 60 40 50 30 20 10 40

L m 100 per counts i E.col L m 100 per counts i E.col levels of gazetted levels 2013 E. coli E. coli an District levels calculated based on all the data collected collected data the all on based calculated levels suen W 1997 0 T

600 300 200 100 500 700 400

L m 100 per counts i E.col E.coli 2013 2013 uen Mun District Outlying Islands T 1997 1997 0 0

60 50 30 20 10 40

600 700 500 300 200 100 400 Annual geometric mean mean geometric Annual beaches by district, 1997 - 2013 district, 1997 - beaches by

L m 100 per counts i E.col L m 100 per counts i E.col Note: Annual geometric mean geometric Annual Note: between March and October. 25

Water Quality Trend Annual geometricmean Southern District Note: Figureinredindicatesthatthebeachwasclosedyear Big Wave Bay Chung HomKok Deep Water Bay Hairpin Middle Bay Repulse Bay Rocky Bay Shek O South Bay St. Stephen`s Stanley Main Turtle Cove Appendi 1997 x A - Annual geometric mean 179 399 102 22 55 44 40 23 17 40 72 40 1998 223 114 40 46 72 16 70 26 24 14 11 6 E.coli 1999 77 14 14 17 72 32 13 11 12 11 8 4 2000 levels 98 16 18 80 29 12 11 11 8 9 7 6 2001 106 118 15 18 10 13 31 15 8 5 7 9 2002 23 13 43 13 9 6 9 9 5 5 8 8 2003 33 14 14 12 28 11 11 9 7 9 6 4 E. coli 2004 26 12 19 16 9 7 7 4 9 4 5 5 countsper100mL 2005 101 13 13 20 30 19 12 8 8 7 7 8 E. coli 2006 50 10 18 12 33 24 11 10 11 7 7 7 2007 17 19 17 18 9 7 9 7 5 6 9 5 levels (1997-2013) 2008 31 13 10 14 15 22 10 11 9 5 9 5 2009 46 14 12 12 12 13 13 11 11 4 6 5 2010 149 33 12 50 19 20 9 9 7 4 4 8 2011 17 23 11 5 6 6 6 6 4 4 6 4 2012 31 15 30 16 34 5 9 9 7 5 4 6 2013 21 14 14 10 22 15 11 10 19 8 4 6 A1

Appendix A 8 7 41 53 86 71 39 13 24 15 107 135 106 133 2013 2013 9 2 8 88 24 32 51 40 50 30 83 10 69 18 2012 2012 2 9 2 7 5 58 10 21 23 19 21 18 59 27 2011 2011 6 3 17 87 87 28 13 10 13 141 137 102 124 134 2010 2010 5 3 60 51 16 15 27 145 178 130 410 144 208 276 2009 2009 5 53 11 12 35 13 19 258 296 271 481 289 251 510 2008 2008 2 6 3 9 78 33 14 405 280 286 566 305 352 496 2007 2007 5 4 11 30 20 13 469 171 459 308 853 426 599 772 2006 2006 6 4 67 14 16 19 512 132 782 641 716 663 895 1042 2005 2005 counts per 100mL counts per 100mL 2 3 9 74 17 10 412 101 523 287 594 470 619 1102 2004 2004 E. coli E. coli 5 4 10 97 17 21 831 159 734 442 875 702 762 693 2003 2003 6 4 2 28 14 742 201 683 547 741 133 696 1155 1169 2002 2002 5 1 12 28 22 739 411 133 269 199 323 233 100 621 2001 2001 5 2 39 10 61 16 26 levels levels 593 181 177 258 209 316 326 2000 2000

4 2 51 11 17 32 12 515 231 109 350 231 387 442 1999 1999 E.coli E.coli

4 2 92 21 99 41 44 262 280 399 239 435 502 1045 1998 1998 5 3 30 62 66 110 600 471 458 609 148 691 1583 1009 1997 1997

A2 Ting Kau Ting Ma Wan Tung Wan Tung Ma Wan Lido Hoi Mei Wan Gemini Trio Casam Silverstrand Kiu Tsui Approach Anglers' First Bay Clear Water Hap Mun Bay Clear Water Bay Second Bay Second Clear Water Note: Figure in red indicates that the beach was closed in that year Annual geometric mean Tsuen Wan District Wan Tsuen Sai Kung District mean Annual geometric Appendix A Note: Figureinredindicatesthatthebeachwasclosedyear Clear Water BaySecond Hap MunBay Clear Water BayFirst Kiu Tsui Silverstrand Trio Anglers' Approach Casam Gemini Hoi MeiWan Lido Ma Wan Tung Wan Ting Kau 1997 1997 1009 1583 148 691 609 458 471 600 110 66 62 30 3 5 1998 1998 1045 502 435 239 399 280 262 44 41 99 21 92 2 4 1999 1999 442 387 231 350 109 231 515 12 32 17 11 51 2 4 2000 2000 326 316 209 258 177 181 593 26 16 61 10 39 2 5 2001 2001 100 621 233 323 199 269 133 411 739 22 28 12 1 5 2002 2002 1169 1155 133 696 741 547 683 201 742 14 28 2 4 6 2003 2003 693 762 702 875 442 734 159 831 21 17 97 10 4 5 E. coli E. coli 2004 2004 1102 619 470 594 287 523 101 412 10 17 74 3 9 2 countsper100mL countsper100mL 2005 2005 1042 895 663 716 641 782 132 512 19 16 14 67 4 6 2006 2006 772 599 426 853 308 459 171 469 13 20 30 11 4 5 2007 2007 496 352 305 566 286 280 405 14 33 78 9 3 6 2 2008 2008 510 251 289 481 271 296 258 19 13 35 12 11 53 5 2009 2009 276 208 144 410 130 178 145 27 15 16 51 60 3 5 2010 2010 134 124 102 137 141 13 10 13 28 87 87 17 3 6 2011 2011 18 27 59 21 19 23 21 10 58 5 7 2 9 2 2012 2012 18 10 30 69 83 50 40 51 32 24 88 8 2 9 2013 2013 133 106 135 107 15 24 13 39 71 86 53 41 7 8 Annual geometricmean Outlying Islands Annual geometricmean Tuen MunDistrict Note: Figureinredindicatesthatthebeachwasclosedyear Cheung Chau Tung Wan Hung Shing YehHung Butterfly Kwun Yam Cafeteria New Lo SoShing Cafeteria Old Lower CheungSha Castle Peak Pui O Golden Silver MineBay Kadoorie Tong Fuk Upper CheungSha 1997 1997 259 309 435 332 352 481 290 24 32 85 36 14 5 3 8 1998 1998 121 100 138 199 123 130 19 21 23 16 98 10 3 2 3 E.coli E.coli 1999 1999 109 44 60 58 10 57 10 44 39 11 3 6 4 4 2 2000 2000 levels levels 12 61 10 51 57 12 58 10 50 50 68 5 2 5 3 2001 2001 104 125 105 120 16 74 22 17 87 67 11 6 5 6 5 2002 2002 114 17 60 62 74 10 58 10 66 42 2 9 2 4 3 2003 2003 160 74 80 76 14 64 15 84 11 50 5 7 3 3 3 E. coli E. coli 2004 2004 12 55 54 61 80 46 14 98 4 5 2 7 9 4 3 countsper100mL countsper100mL 2005 2005 117 14 55 10 70 81 12 90 10 62 34 4 3 5 3 2006 2006 120 150 139 117 118 37 94 13 16 52 11 4 4 5 4 2007 2007 101 21 84 68 67 12 64 30 87 22 6 9 3 4 4 2008 2008 15 56 10 48 45 20 47 24 63 43 87 10 4 5 7 2009 2009 17 49 38 46 13 35 12 42 45 48 6 9 7 5 5 2010 2010 12 30 31 34 63 14 37 31 45 11 4 8 3 5 4 2011 2011 41 27 29 49 13 26 28 37 6 3 5 3 9 4 3 2012 2012 13 42 47 48 10 48 22 62 38 40 4 5 4 4 4 2013 2013 10 71 50 39 17 78 51 45 39 52 4 9 5 7 4 A3

Appendix A - otal T 48,980 64,730 90,870 64,000 41,450 100,580 138,610 525,150 966,150 355,380 2,972,680 - 8,150 7,230 27,790 17,200 14,500 27,540 11,000 78,810 122,850 421,480 296,700 Peak month - 600 780 1000 2,900 1,340 3,500 2,300 16,000 21,000 24,000 15,000 Peak day - 870 385 317 455 267 623 707 Note: Information provided by the Leisure and Cultural Services Department Note: Information provided by the Leisure and 4,668 6,382 2,690 eekends & 14,806 W public holidays Daily average - 65 920 418 267 167 239 248 167 850 eekdays 2,761 10,838 W ater Bay ave Bay

urtle Cove

Beach Big W Chung Hom Kok Deep W Hairpin Middle Bay Repulse Bay Rocky Bay Shek O South Bay St. Stephen's Stanley Main T Southern District Southern 2013 bathing season numbers during the Visitor Appendix B - 2013 Beach visitor number Beach B - 2013 Appendix B1

Appendix B Visitor numbersduringthe2013bathingseason Tsuen WanDistrict Visitor numbersduringthe2013bathingseason Sai KungDistrict T Ma W Lido Hoi MeiW Gemini Casam Approach Anglers' Beach T Silverstrand Kiu Hap MunBay Clear W Clear W Beach ing Kau rio T sui an ater BaySecond ater BayFirst T ung W an an W W eekdays eekdays 1,991 310 129 587 263 398 154 431 106 35 76 43 71 9 Daily average Daily average public holidays public holidays W W 6,416 eekends & eekends & 1,035 1,251 2,303 781 496 803 Note: InformationprovidedbytheLeisureandCulturalServicesDepartment Note: InformationprovidedbytheLeisureandCulturalServicesDepartment 164 513 243 914 127 127 21 Peak day Peak day 24,000 5,920 2,980 3,700 6,400 2,250 2,770 1,380 370 470 960 970 310 60 Peak month Peak month 235,700 13,120 20,200 30,800 47,750 41,390 12,600 48,740 12,280 9,440 4,590 2,890 2,620 620 126,170 129,890 841,720 171,160 281,170 124,310 80,010 65,120 25,720 17,260 62,290 31,200 15,930 3,250 T T otal otal B2

Appendix B otal otal T T 78,940 78,940 31,150 23,040 71,130 45,780 51,710 260,450 283,700 223,550 171,710 716,200 180,660 103,710 105,280 6,290 3,720 11,060 11,060 10,030 15,620 14,260 15,740 19,590 28,320 38,000 61,950 38,500 23,260 34,900 116,000 116,000 Peak month Peak month 800 340 760 2,100 4,750 2,400 1,800 9,500 1,850 2,700 1,450 1,410 1,900 8,610 1,700 Peak day Peak day 568 802 562 617 227 180 714 288 413 Note: Information provided by the Leisure and Cultural Services Department Note: Information provided by the Leisure and Note: Information provided by the Leisure and Cultural Services Department 1,009 1,537 1,773 1,099 1,311 4,734 eekends & eekends & W W public holidays public holidays Daily average Daily average 79 53 113 113 206 179 156 283 249 138 606 405 833 860 822 eekdays eekdays 2,045 W W an ung W T

eh Y

am Y

ong Fuk

Beach Butterfly Cafeteria New Cafeteria Old Castle Peak Golden Kadoorie Beach Cheung Chau Kwun Lo So Shing Lower Cheung Sha Pui O Silver Mine Bay T Upper Cheung Sha Hung Shing Visitor numbers during the 2013 bathing season numbers during Visitor Tuen Outlying Islands during the 2013 bathing season numbers Visitor B3

Appendix B Appendix C-Physicochemicalwaterqualitydatafor Summary of physicochemical water qualitydata of gazetted beaches,2013 Southern District: T Stanley MainBeach St. Stephen'sBeach South BayBeach Shek OBeach Rocky BayBeach[Closed] Repulse BayBeach Middle BayBeach [Closed] Deep W Chung HomKokBeach Big W urtle CoveBeach ave BayBeach ater BayBeach Beach Note: Datapresentedarearithmeticmeans;figuresinb 1. Pr actical Salinit gazetted beaches,2013 y Unit; ( ( ( ( ( ( ( ( ( ( ( (

8 8 8 8 8 8 8 8 8 8 8 8 ...... 1 2 0 1 1 0 1 1 2 0 1 1 9 0 4 2 9 8 3 0 1 4 3 4 8 8 8 8 8 8 8 8 8 8 8 8 2.Nephelometric

...... pH ------3 3 3 3 3 2 3 3 4 3 3 3

7 8 0 3 4 7 4 3 0 1 4 3 8 8 8 8 8 8 8 8 8 8 8 8 ...... 7 7 6 6 6 5 6 6 7 6 5 5 8 8 4 5 4 3 7 2 2 2 9 3

) ) ) ) ) ) ) ) ) ) ) ) ( ( ( ( ( ( ( ( ( ( ( (

Salinity (psu) 2 2 2 2 2 2 2 2 2 2 2 2 1 1 1 2 6 2 2 2 1 1 1 1 ...... 4 9 3 1 5 7 5 6 9 3 6 3 2 2 2 2 3 3 2 2 2 2 2 2 T

9 9 9 9 0 0 9 9 9 8 9 9 ------urbidit ......

5 0 6 6 7 1 7 5 3 7 6 6 3 3 3 3 3 3 3 3 3 3 3 3 3 2 3 3 3 2 3 3 3 3 3 2 ...... 3 5 4 3 1 8 4 2 0 3 4 9

) ) ) ) ) ) ) ) ) ) ) ) y Unit 1 ( ( ( ( ( ( ( ( ( ( ( (

T r 0 0 0 1 1 0

ack urbidity (NTU) 0 0 0 0 0 0 ...... 9 9 9 0 1 8 ...... 8 9 7 8 5 7 3 3 9 2 5 7 5 7 5 4 5 2 4 2 3 3 2 2 3 4 2 6 4 2 ets are

------

...... ------3 3 0 3 3 1 9 5 2 0 1 3

1 1 1 2 2 3

0 7 2 6 2 5 5 9 0 8 5 2 5 9 5 5 6 6 5 9 1 9 1 1 ...... 7 5 3 6 3 1 1 6 7 4 8 4 2 6 1 2 4 3 0 0 0 0 0 0

) ) ) ) ) ) r ) ) ) ) ) ) anges 2 T emperature (ºC) ( ( ( ( ( ( ( ( ( ( ( (

. 1 1 1 1 1 1 1 1 1 1 1 1 7 7 7 8 8 8 7 7 7 8 7 8 ...... 5 7 9 2 6 4 8 7 4 6 9 6 2 2 2 2 2 2 2 2 2 2 2 2

6 6 5 5 5 5 5 5 6 6 5 6 ------......

3 5 9 9 9 7 6 8 4 2 9 0 3 3 3 3 3 3 3 3 3 3 3 3 1 2 0 0 1 1 0 0 2 1 1 1 ...... 8 5 0 0 8 4 0 0 2 0 0 5

) ) ) ) ) ) ) ) ) ) ) ) ( ( ( ( ( ( ( ( ( ( ( (

5 4 5 4 5 5 4 4 5 4 5 6 ...... (mg/L) 4 2 1 7 7 5 7 6 3 2 4 1 6 6 6 6 6 6 6 6 6 6 6 6

------...... 6 6 6 7 6 7 7 6 7 6 6 8

8 8 8 8 8 8 8 8 8 8 8 7 Dissolved Oxygen ...... 3 0 2 3 1 9 2 6 2 1 4 8

) ) ) ) ) ) ) ) ) ) ) ) (% Saturation) ( ( ( ( ( ( ( ( ( ( ( (

7 6 7 7 7 8 7 6 7 6 8 8 0 3 8 2 6 1 2 8 3 5 0 5

9 9 9 9 9 9 9 9 9 9 9 9 ------

5 5 3 4 5 4 4 3 6 4 4 6 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 1 1 1 1 1 0 2 1 7 6 5 8 8 6 0 9 7 7

) ) ) ) ) ) ) ) ) ) ) ) C1

Appendix C ) ) ) ) ) ) ) ) ) ) ) ) ) )

3 7 3 6 4 1 5 5 5 8 3 5 4 2 1 1 1 1 1 1 1 0 0 0 0 0 0 1 0 1 1 1 1 1 1 7 6 8 5 9 1 1 1 1 1 1 1 1

0 2 0 0 1 6 1 0 0

------9 9 9 9 9 ------

9 9 9 9 9 8 9 9 1

6 8 7 0 4 3 2 4 8 8 6 1 3 8 8 8 6 9 7 7 7 6 6 6 6 7 6 6

( ( ( ( ( ( ( ( ( ( ( ( ( ( (% Saturation) (% Saturation) ) ) ) ) ) ) ) ) ) ) ) ) ) )

0 9 4 7 4 6 6 9 5 4 5 4 7 5 ...... Dissolved Oxygen Dissolved Oxygen 9 9 8 8 8 7 7 7 7 7 7 7 7 7

8 6 7 0 7 8

5 4 3 3 4 1 4 3 ...... ------...... ------

6 6 6 7 6 6 6 6 6 6 6 6 6 6 (mg/L) 6 5 4 9 2 1 (mg/L) 9 0 1 7 5 4 4 2 ...... 5 5 5 5 5 5 4 5 5 4 4 5 4 5

( ( ( ( ( ( ( ( ( ( ( ( ( ( ) ) ) ) ) ) ) ) ) ) ) ) ) )

(ºC) (ºC) 7 7 2 2 5 4 8 0 7 8 8 6 5 4 ...... 1 2 1 2 1 1 0 0 0 0 0 0 9 0 3 3 3 3 3 3 8 0 2 3 6 4 3 3 3 3 3 3 2 3 8 1 9 1 0 8 0 8

......

...... ------6 7 7 7 6 7

5 6 5 6 6 5 6 5

2 2 2 2 2 2 1 1 5 2 7 8 2 2 2 2 2 2 2 2 4 3 5 4 3 5 2 3 ...... 9 9 8 9 8 8 9 9 9 9 9 9 9 9 1 1 1 1 1 1 1 1 1 1 1 1 1 1

.

. ( ( ( ( ( ( emperature emperature ( ( ( ( ( ( ( ( T T 2 2 anges anges ) ) ) ) ) ) ) ) ) ) ) ) r

r ) )

0 0 0 0 0 0 0 0 8 4 2 7 8 1 7 6 5 2 2 5 3 9 8 7 3 7 . . 1 9 ...... 1 0 0 4 0 0 5 0 5 5 8 5 0 2 5 9 9 0 8 8 7 8 0 4 0 2 3 5

2 2

1 1 1 1 1 1

9 7 3 1 4 3 - - - -

9 8 0 8 1 8 9 6 - - ......

- - ......

------

4 5 2 2 3 2 6 6 7 6 ets are ets are 3 3 4 3 4 5 3 4 7 1 9 0 7 2 9 6 9 2 4 7 4 9 6 3 . . . . 3 9 . . 6 3 2 6 0 1 ...... 0 0 1 0 urbidity (NTU) urbidity (NTU) 1 1 ack

1 1 ack

1 1 1 1 2 1 T T

( ( ( ( r r

( ( ( ( ( ( ( ( ( ( 1 1 y Unit y y Unit y ) ) ) ) ) ) ) ) ) ) ) ) ) )

3 5 5 3 6 1 5 3 5 7 5 5 6 4 ...... 2 2 2 2 1 2 1 1 1 1 1 1 1 1 3 3 3 3 3 3 0 9 3 4 6 1 3 3 3 3 3 3 3 3 5 1 0 8 1 4 4 8

......

...... urbidit urbidit ------9 9 0 9 8 8

5 6 7 5 6 7 5 6 T

T 2 2 3 2 2 2 4 2 7 1 1 4 2 2 2 2 2 2 2 2 3 2 0 8 3 0 1 8 ...... 2 4 6 4 4 9 3 6 8 5 8 8 9 6 2 2 2 2 2 1 Salinity (psu) Salinity (psu) 1 1 1 1 1 1 1 1

( ( ( ( ( ( ( ( ( ( ( ( ( ( ) ) ) ) ) ) ) ) ) ) ) ) ) )

5 5 5 4 1 5 2 9 8 2 0 0 7 3 6 6 6 7 7 6 4 3 3 4 4 4 3 4 ...... 8 8 8 8 8 8 6 5 7 7 7 5 8 8 8 8 8 8 8 8 7 8 8 7 7 6 0 8

pH 3 3 3 3 3 3 ------pH 1 1 1 1 1 1 2 1 ------......

......

Nephelometric 2. Nephelometric 2. 8 8 8 8 8 8 8 3 4 9 4 9 8 8 8 8 8 8 8 8 0 1 7 1 6 1 6 9 9 9 0 9 9 0 0 9 9 9 9 0 9 9 ...... 7 7 8 7 7 8 8 7 7 7 7 8 7 7

( ( ( ( ( ( ( ( ( ( ( ( ( ( y Unit ; y Unit ; actical Salinit actical actical Salinit Pr 1. 1. Pr Note: Data presented are arithmetic means; figures in b in figures means; arithmetic are presented Data Note: Note: Data presented are arithmetic means; figures in b in figures means; arithmetic are presented Data Note: an Beach Beach Beach

an Beach ung W

an T ing Kau Beach [Closed] Clear Water Bay First Beach Clear Water Bay Second Beach Clear Water Beach Kiu Tsui Silverstrand Beach Beach Trio Hoi Mei W Lido Beach Ma W T Anglers' Beach [Closed] Approach Beach Casam Beach Gemini Beaches [Closed] Summary of physicochemical water quality data of gazetted beaches, 2013 gazetted of quality data water physicochemical Summary of Sai Kung District : District Sai Kung Tsuen Wan District : Tsuen Wan District beaches, 2013 gazetted of quality data water physicochemical Summary of C2

Appendix C Summary of physicochemical water qualitydata of gazetted beaches,2013 Outlying Islands: Upper CheungShaBeach,Lantau T Silver MineBayBeach,Lantau Pui OBeach,Lantau Lower CheungShaBeach,Lantau Lo SoShingBeach,Lamma Kwun Hung Shing Cheung ChauT Summary of physicochemical water qualitydata of gazetted beaches,2013 Tuen MunDistrict : Kadoorie Beach Castle PeakBeach Cafeteria OldBeach Cafeteria NewBeach Butterfly Beach ong FukBeach,Lantau Y am Beach,CheungChau Y Beach eh Beach,Lamma Beach ung W Note: Data presented are arithmetic means; figures in b Note: Datapresentedarearithmeticmeans;figuresinb 1. Pr 1. Pr an Beach actical Salinit actical Salinit y Unit; y Unit; ( ( ( ( ( ( ( ( ( ( ( ( ( ( (

8 8 8 8 8 8 7 8 7 8 7 7 7 7 7 ...... 1 1 0 1 1 0 9 0 9 0 9 9 9 9 9 1 2 1 2 0 3 7 2 7 8 8 8 8 8 8 8 8 8 0 0 2 3 0 0 8 8 8 8 8 8

2. Nephelometric ...... 2. Nephelometric

...... ------3 3 2 3 3 2 3 2 2 pH ------1 1 2 1 1 1 pH

2 1 7 2 2 6 0 5 9 8 8 8 8 8 8 8 8 8 9 8 0 8 8 8 8 8 8 8 8 8 ...... 6 6 6 6 7 6 7 6 7 4 4 5 4 4 4 7 8 2 9 3 3 0 4 3 5 4 2 1 8 4

) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ( ( ( ( ( ( ( ( (

( ( ( ( ( ( Salinity (psu) 1 1 1 1 1 1 2 1 2

Salinity (psu) 8 8 8 7 8 9 8 8 0 7 7 5 0 4 1 ...... 1 2 1 8 2 3 7 7 3 2 9 2 7 0 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2

6 7 3 7 7 8 7 8 8 T T ------2 2 1 2 2 2 ------

urbidit ......

urbidit ...... 3 3 3 3 3 3 8 4 4 0 1 5 5 1 0 3 3 3 3 3 3 3 3 3 4 8 9 4 6 6 0 0 0 0 0 0 1 1 1 2 2 3 2 3 2 ...... 7 8 7 7 8 8 8 9 1 0 0 0 1 1 0

) ) ) ) ) ) ) ) ) ) ) ) ) ) ) y Unit y Unit 1 1 ( ( ( ( ( ( ( ( ( ( ( ( ( ( (

r

r 1 0 1 3 1 0 1 1 1 T T 2 5 2 3 3 3 ack ack urbidity (NTU) ...... urbidity (NTU) ...... 2 8 5 3 8 9 0 9 3 7 5 7 2 3 0 6 5 0 2 7 1 1 4 1 1 1 1 6 9 8 0 5 1 8 6 7 3 3 5 3 6 5 8 1 6 ets are ets are

5 0

4 ------...... ------. . . 1 . . . 4 7 1 6 9 6 8

. 6 9 8 9

1 5 2 2 2 4 3 1 1 1 1 0 . 2 3 1 1 2 2 1 2 7 4 1 5 1 1 3 9 1 5 8 8 2 2 5 1 4 0 1 5 2 2 0 7 6 6 3 5 ...... 1 4 3 2 1 6 2 2 1 7 1 2 7 8 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

r r ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) anges anges 2 2 T T ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( emperature emperature

.

. 1 1 1 1 1 1 1 1 1 2 1 2 1 1 1 8 8 9 8 8 9 9 9 9 0 9 0 9 9 9 ...... 3 0 0 3 3 8 0 3 0 2 2 2 2 2 2 2 2 2 2 6 1 8 7 9 2 2 2 2 2 2

7 6 7 7 6 6 5 5 6

6 6 6 6 6 6 ------......

......

4 7 4 4 9 0 9 5 0 3 3 3 3 3 3 3 3 3 7 8 5 5 8 4 3 3 3 3 3 3 1 1 3 2 1 0 0 0 0 0 0 0 0 0 0 ...... 5 6 1 5 6 7 3 4 4 5 3 5 3 6 7

(ºC)

(ºC) ) ) ) ) ) ) ) ) ) ) ) ) ) ) )

( ( ( ( ( ( ( ( ( ( ( ( ( ( (

5 5 5 5 5 4 5 5 5 5 5 4 5 5 4 ...... 8 6 0 6 7 9 5 5 6 (mg/L) 0 2 9 2 1 6 6 6 6 6 6 6 6 6 6 (mg/L) 6 6 6 6 6 6

------...... ------...... 7 8 9 6 7 7 8 8 8

3 7 4 4 4 4

7 8 8 7 7 8 8 8 8 8 7 8 8 8 8 Dissolved Oxygen ...... Dissolved Oxygen 4 0 3 9 8 2 3 0 4 1 5 2 3 1 1

) ) ) ) ) ) ) ) ) ) ) ) ) ) ) (% Saturation) ( ( ( ( ( ( ( ( ( (% Saturation) ( ( ( ( ( (

8 8 7 8 8 7 8 8 7 6 7 6 7 7 6 4 5 3 3 4 2 1 3 7 2 3 9 3 1 6

9 9 9 9 9 9 9 9 9 8 9 8 8 9 9 ------

5 6 7 5 5 5 5 5 6 9 3 8 9 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 1 0 0 1 1 2 1 0 0 1 0 0 1 5 5 2 3 4 9 7 1 9 4 2 3 4 1 4

) ) ) ) ) ) ) ) ) ) ) ) ) ) ) C3

Appendix C (1986 - 2013) (1986 - 2013)

Southern District Appendix D - Long-term trend of beach water quality quality water trend of beach D - Long-term Appendix D1

Appendix D D2

Appendix D D3

Appendix D D4

Appendix D D5

Appendix D D6

Appendix D D7

Appendix D Sai KungDistrict D8

Appendix D D9

Appendix D D10

Appendix D Tsuen Wan District Tsuen D11

Appendix D D12

Appendix D D13

Appendix D D14

Appendix D Tuen Mun District Tuen D15

Appendix D D16

Appendix D D17

Appendix D Outlying Islands D18

Appendix D D19

Appendix D D20

Appendix D D21

Appendix D D22

Appendix D Copyright Notices

The information contained in this publication can be used freely for study, research and training purposes subject to acknowledgement of the source. Use of the information for purposes other than those stated above requires prior written permission of the Director of Environmental Protection.

Disclaimer

Whilst the Government of the Hong Kong Special Administrative Region ("the Government") endeavours to ensure the accuracy of the information in this report, the Government (including its officers and employees) makes no warranty, statement or representation, expressed or implied, with respect to accuracy, completeness, or usefulness of the information contained herein, and in so far as permitted by law, shall not have any legal liability or responsibility (including liability for negligence) for any loss, damage, injury and death which may result, whether directly or indirectly, from the supply or use of such information. Users are responsible for making their own assessments of all information contained in this publication before acting on it.

Contact us: Water Policy and Science Group Environmental Protection Department 48/F Revenue Tower, 5 Gloucester Road, Wan Chai, Hong Kong Tel: (852)2838-3111 Fax: (852)2827-8296 Email: [email protected]