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Beach Monitoring Programme

To protect public health and to assess whether the Water Quality Objective is met, a comprehensive beach monitoring programme has been implemented by the EPD. The Beach Monitoring Programme has the following six functions:

  • to assess compliance with the Water Quality Objective;
  • to detect any change in beach water quality;
  • to identify polluted beaches that need remedial actions;
  • to evaluate pollution abatement programmes;
  • to decide on the opening of beaches; and
  • to advise the public on the beach water quality status.

The Programme

The beach monitoring work includes beach water sample collection, laboratory analysis and data management. During each beach monitoring visit, beach water samples are collected where the water depth is between thigh to waist depth i.e. about 1 metre depth for analysis of E. coli bacteria and physical measurements of pH, salinity and turbidity. The water samples are delivered to the laboratory for analysis as soon as sampling is completed and are stored at about 4°C during transportation. Dissolved oxygen concentration and temperature of the beach water are measured in-situ at each of the beaches and observations such as weather and beach conditions, are also recorded. The Beach Monitoring Programme covers 41 gazetted beaches and 3 non-gazetted beaches scattered in six different districts. Please incorporate more interactive elements onto the map.

 

Beaches Monitored by the EPD

  • Tuen Mun District
  • 1.Butterfly
  • 2. Castle Peak
  • 3. Kadoorie
  • 4. Cafeteria Old
  • 5. Cafeteria New
  • 6. Golden

  • Tsuen Wan District
  • 7. Ma Wan Tung Wan
  • 8. Anglers'
  • 9. Gemini
  • 10. Hoi Mei Wan
  • 11. Casam
  • 12. Lido
  • 13. Ting Kau
  • 14. Approach

  • Islands District
  • 15. [Discovery Bay]
  • 16. Silver Mine Bay
  • 17. Pui O
  • 18. Lower Cheung Sha
  • 19. Upper Cheung Sha
  • 20. Tong Fuk
  • 21. Cheung Chau Tung Wan
  • 22. Kwun Yam
  • 23. Hung Shing Yeh
  • 24. Lo So Shing

  • Tai Po District
  • 25. [Lung Mei]

  • Sai Kung District
  • 26. Kiu Tsui
  • 27. [Kiu Tsui (New)]
  • 28. Hap Mun Bay
  • 29. Trio
  • 30. Silverstrand
  • 31. Clear Water Bay First
  • 32. Clear Water Bay Second

  • Southern District
  • 33. Deep Water Bay
  • 34. Repulse Bay
  • 35. Middle Bay
  • 36. South Bay
  • 37. Chung Hom Kok
  • 38. St. Stephen's
  • 39. Stanley Main
  • 40. Hairpin
  • 41. Turtle Cove
  • 42. Shek O
  • 43. Rocky Bay
  • 44. Big Wave Bay

Monitoring Regime

The overall steps of the beach monitoring program

During bathing seasons, all beaches are monitored at least three times per month. To conform with the Water Quality Objective, the interval between the sampling occasions is maintained at 3 to 14 days. All data collected during the bathing season will be used for assessing the annual

During non-bathing seasons, gazetted beaches which remain open throughout the year are still monitored at least three times per month, all other beaches are monitored once per month.

 

Beaches Monitored by the EPD

 

Beach monitoring frequencies
Beach Monitoring frequency
Bathing season
(March to October)
Non-bathing season
(November to February)

Gazetted beaches open all year round *

at least 3 times per month

at least 3 times per month

Other gazetted beaches

at least 3 times per month

once per month

Non-gazetted beaches

at least 3 times per month

once per month

* Clear Water Bay Second Beach, Deep Water Bay Beach, Golden Beach and Silverstrand Beach

Monitoring Protocol

The beach monitoring work includes beach water sample collection, laboratory analysis and data management. During each beach monitoring visit, beach water samples are collected where the water depth is between thigh to waist depth i.e. about 1 metre depth for analysis of E. coli bacteria and physical measurements of pH, salinity and turbidity. The water samples are delivered to the laboratory for analysis as soon as sampling is completed and are stored at about 4°C during transportation. Dissolved oxygen concentration and temperature of the beach water are measured in-situ at each of the beaches and observations such as weather and beach conditions, are also recorded.

 

 


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