Environmental Impact Assessment (EIA) Ordinance, Cap.499
Application for Approval to Apply Directly for Environmental Permit
Application No.: DIR-051/2001

Project Title: Contract HY/99/19, Castle Peak Road Improvement between Ting Kau and Sham Tseng, Tsuen Wan
Construction of Reclamation and Associated Seawall at Sham Tseng East



Condition Imposed under Section 5(12) of the Ordinance for Permission to Apply Directly for Environmental Permit

1. All measures described in the Project Profile submitted by the Applicant on 16 February 2001 shall be fully implemented.

2. Dredging of marine sediment shall be limited to the scour apron.

3. No more than 1 derrick lighter shall be used for marine dredging works and the maximum dredging rate shall not be more than 200 cu.m per day.

4. All filling activities shall be carried out behind rockfill and rock armour.

5. Tightly closing grabs shall be used to restrict the loss of fine sediment to suspension.

6. Silt curtain shall be installed along the reclamation area during construction to control sediment suspension within the work area.

7. Marine water quality monitoring and audit shall be carried out during construction stage and one monitoring station shall be located at the Ma Wan Fish Culture Zone. The marine water quality monitoring and audit manual shall be submitted to the Director of Environmental Protection for approval prior to commencement of work.

8. The construction method specified in Section 2.1 of the Project Profile submitted by the Applicant on 16 February 2001 shall be followed during the construction.

9. Surface run-off from the Castle Peak Road Improvement project's construction sites shall be directed into adequately designed sand/silt removal facilities such as sand traps, silt traps and sediment basins before discharge into storm drains. Channels, earth bunds or sand bag barriers shall be provided on site to properly direct stormwater to such silt removal facilities.

10. Catchpits and perimeter channels shall be constructed in advance of site formation works and earthworks of the Castle Peak Road Improvement project.

11. Silt removal facilities, channels and manholes shall be suitably maintained with the deposited silt and grit being removed at least once a week, and at the onset of and after each rainstorm to ensure that these facilities of the Castle Peak Road Improvement project are functioning properly at all times.

12. Open stockpiles of construction materials (e.g. aggregates and sand) on the work sites for the Castle Peak Road Improvement project shall be covered with tarpaulin or similar fabric during rainstorms. Measures such as providing sand bag barriers shall be taken to prevent the washing away of construction materials, soil, silt or debris into any drainage system.

13. Manholes (including any newly constructed ones) of the Castle Peak Road Improvement project shall always be adequately covered and temporarily sealed so as to prevent silt, construction materials or debris from getting into the drainage system.

14. A baseline dive survey on marine ecology of the reclamation site and the surrounding area within 300m from the reclamation site shall be conducted and the results shall be submitted to the Director of Environmental Protection 2 months before commencement of works. If the results show the presence of species of conservation importance including corals, the Director of Environmental Protection's agreement on mitigation measures shall be obtained before commencement of works.

15. For each Stage of work specified in Section 2.1 of the Project Profile submitted by the Applicant on 16 February 2001, only 1 set of equipment specified in Table 1 of Project Profile shall be used at the same time.

16. The applicant shall submit the details (length, height, material and type) of the portable noise barrier with surface density not less than 7 kg/m2 for the Castle Peak Road Improvement project to the Director of Environmental Protection 2 months before commencement of works.

17. The applicant shall ensure that all plant and equipment to be used on Site are properly maintained in good operating condition. Silencers, mufflers, acoustic linings or shields, acoustic sheds or screens shall be used to avoid disturbance to any nearby noise sensitive receivers.

18. The applicant shall conduct a Marine Archaeological Investigation (MAI) according to the attached Guidelines for Marine Archaeological Investigation to the satisfaction of the Director of Environmental Protection before any dredging work commences. Mitigation measures agreed with the Antiquities and Monuments Office shall be designed and implemented afterwards. The MAI shall be carried out by a qualified marine archaeologist who shall obtain a License from the Antiquities Authority before undertaking the MAI under the provision of the Antiquities and Monuments Ordinance (Cap. 53).



Note
Under Section 17 of the EIAO Ordinance, the applicant may appeal to the Appeal Board against any of the above conditions within 30 days of the receipt of this notice of the Director of Environmental Protection's decision.


Environmental Protection Department
March 2001