4. SUMMARY OF EXCEEDANCES, COMPLAINTS, NOTIFICATION OF SUMMONS AND SUCCESSFUL PROSECUTION

4.1 Summary of Exceedance of the Environmental Quality Performance Limit

4.1.1 Summary of Action and Limit Level exceedance of 1-hr TSP level and 24-hr TSP level at AMS6 is reported in the monthly EM&A Reports (for June, July and August 2017) prepared by Contract No. HY/2011/03.

4.1.2 There was no Action and Limit Level exceedance of 1-hr TSP level and 24-hr TSP level recorded at station AMS7 by the Environmental Team of Contract No. HY/2010/02 during the reporting period.

4.1.3 There was no Action and Limit Level exceedance for noise recorded at station NMS2 and station NMS3B by the Environmental Team of Contract No. HY/2010/02 during the reporting period.

4.1.4 There were two Action and Limit Level exceedances of suspended solids recorded at station SR3 during mid-ebb tide on 12 July 2017 and station IS7 during mid-flood tide on 14 July 2017. The investigation reports (including the causes of exceedance, action taken and recommendation for mitigation) for Action or Limit Level Non-compliance were provided in Appendix I.

Regarding the exceedance on 12 July 2017, marine-based construction works were undertaken in Box Culvert B and there was one derrick lighter delivered sand to the work site of Three Runway Project on 12 July 2017 under Contract No. HY/2013/03. Both marine-based construction works and the route of marine transportation were far away from the concerned WQM station SR3. There was no notification of exceedance received at the WQM stations closer to the marine-based construction works areas, such as IS(Mf)11, IS10, IS17 and SR7. Besides, the SS exceedance was recorded at 13:49. The derrick lighter was deposited at HKBCF from morning until 16:00. Therefore, it was unlikely to generate any suspended solids to cause the SS exceedance recorded at the concerned WQM station SR3 during mid-ebb tide on 12 July 2017. Besides, the water quality mitigation measures as mentioned in EM&A Manual and EP were fully implemented in Contract No. HY/2013/03. Hence, the exceedance on 12 July 2017 was not related to Contract No. HY/2013/03.

Regarding the exceedance on 14 July 2017, marine-based construction works were undertaken in Box Culvert B and there were two derrick lighters delivered sand to the work site of Three Runway Project on 14 July 2017 under Contract No. HY/2013/03. Both marine-based construction works and the routes of marine transportation were undertaken in the north side of HKBCF while the concerned WQM station IS7 was in the south-west side. As the concerned monitoring station was far away from both marine-based construction works and the routes of marine transportation and there was no notification of exceedance received at the WQM stations closer to the works areas, such as IS(Mf)11, IS10, IS17 and SR7, it was unlikely to generate any suspended solids to cause the SS exceedance recorded at the concerned WQM station IS7 during mid-flood tide on 14 July 2017. Besides, the water quality mitigation measures as mentioned in EM&A Manual and EP were fully implemented in Contract No. HY/2013/03. Hence, the exceedance on 14 July 2017 was not related to Contract No. HY/2013/03.

After investigation, it was concluded that the exceedances were not related to Contract No. HY/2013/03 due to the above reasons. There was no Action and Limit Level exceedance recorded on other monitoring dates at the monitoring stations shown as shown at Table 4.1 by the Environmental Team of Contract No. HY/2010/02 during the reporting period.

Although the exceedances were not relevant to Contract No. HY/2013/03, the Contractor was reminded to continue to fully maintain all water quality mitigation measures and ensure the silt curtain is fully maintained to prevent any water quality impact to seawater.

4.1.5 Ecological monitoring results at all transects are reported in the EM&A report (for the reporting period) prepared by Contract No. HY/2010/02.

4.2 Summary of Complaints, Notification of Summons and Successful Prosecution

4.2.1 There were four complaints received in relation to the environmental impact during the reporting period. The summary of environmental complaints is presented in Table 4.1. The details of cumulative statistics of Environmental Complaints are provided in Appendix J.

Table 4.1 Summary of Environmental Complaints for the Reporting Period

Log No.	Environmental Complaint Ref. No.	Date of Complaint Receipt	Description
009	ENPO-C0119	1 June 2017	Air pollution
010	ENPO-C0120	2 June 2017	Air pollution
011	ENPO-C0121	6 June 2017	Air pollution
012	ENPO-C0122	9 August 2017	Air pollution and water discharge

(a) 1 June 2017 (Log No. 009)

The complaint was received by EPD from a member of the public on 31 May 2017. The complainant complained that as there was no watering for dust suppression on the road next to Building 044 and 045 on the artificial island of HZMB, a lot of dust was raised when vehicles passed by causing serious nuisance.

After investigation, the ET of Contract No. HY/2013/03 (including Contract No. HY/2013/06 within Contract No. HY/2013/03) concluded that the captioned complaint is not related to the construction activities of Contract No. HY/2013/03. Nevertheless, the Contractor had been reminded to discuss and reach a written agreement with the Contractor of Buildings 044 and 045 about the responsibility of maintaining the road next to Buildings 044 and 045. The Contractor had also been reminded to fulfil the conditions set out in the EP, in particular:

• Condition 3.23:

The Permit Holder shall undertake watering at least 8 times per day on all exposed soil within the Project site and associated work areas throughout the construction phase.

The Contractor had also been reminded to comply with the requirements stipulated in the Environmental Mitigation Implementation Schedule (EMIS) of the EM&A Manual, in particular:

• Air Quality:

A3: The Contractor should undertake proper watering on all exposed spoil (with at least 8 times per day) throughout the construction phase.

(b) 2 June 2017 (Log No. 010)

The complaint was received by EPD from a member of the public on 2 June 2017. The complainant complained that as there was no watering on the construction site of passenger clearance building on the artificial island of HZMB, resulting in a lot of dust spreading around which affected the health of workers. The complainant required EPD to conduct site inspection and reply.

After investigation, the ET of Contract No. HY/2013/03 (including Contract No. HY/2013/06 within Contract No. HY/2013/03) concluded that the captioned complaint is not related to the construction activities of our contract. Nevertheless, ET has recommended the Contractor to remind workers to report dusty spots to contractor to ensure prompt response and necessary follow-up on dust suppression measures through the complaint hotline. The Contractor had also been reminded to fulfil the conditions set out in the EP, in particular:

• Condition 3.23:

The Permit Holder shall undertake watering at least 8 times per day on all exposed soil within the Project site and associated work areas throughout the construction phase.

The Contractor had also been reminded to comply with the requirements stipulated in the Environmental Mitigation Implementation Schedule (EMIS) of the EM&A Manual, in particular:

• Air Quality:

A3: The Contractor should undertake proper watering on all exposed spoil (with at least 8 times per day) throughout the construction phase.

The complaint was received by EPD from a member of the public on 6 June 2017. The complainant complained that as there was no watering on the construction site of passenger clearance building on the artificial island of HZMB, resulting in a lot of dust spreading around which affected the health of workers. The complainant required EPD to follow and reply.

After investigation, the ET of Contract No. HY/2013/03 (including Contract No. HY/2013/06 within Contract No. HY/2013/03) concluded that the captioned complaint is not related to the construction activities of our contract. Nevertheless, ET has recommended the Contractor to remind workers to report dusty spots to contractor to ensure prompt response and necessary follow-up on dust suppression measures through the complaint hotline. The Contractor had been reminded to fulfil the conditions set out in the EP, in particular:

• Condition 3.23:

The Permit Holder shall undertake watering at least 8 times per day on all exposed soil within the Project site and associated work areas throughout the construction phase.

The Contractor had also been reminded to comply with the requirements stipulated in the Environmental Mitigation Implementation Schedule (EMIS) of the EM&A Manual, in particular:

• Air Quality:

A3: The Contractor should undertake proper watering on all exposed spoil (with at least 8 times per day) throughout the construction phase. The complaint was still under investigation. Details will be reported in the coming reporting period.

(d) 9 August 2017 (Log No. 012)

The complaint was received by EPD from a member of the public on 8 August 2017. The complainant complained that there was uncovered stockpiles in the interface with Contract No. HY/2013/01 which belonged to HY/2013/03, resulting in a lot of dust spreading around affecting the health of workers. The complainant had reminded the subcontractor of HY/2013/03 to improve the situation of discharging underground water everywhere and uncovered stockpiles, but the situation did not improve.

After investigation, the ET of Contract No. HY/2013/03 (including Contract No. HY/2013/06 within Contract No. HY/2013/03) concluded that the captioned complaint is not related to the construction activities of our contract. Nevertheless, ET has recommended the Contractor to remind workers to report dusty spots to contractor to ensure prompt response and necessary follow-up on dust suppression measures through the complaint hotline of HKBCF. The Contractor had also been reminded to comply with the requirements stipulated in the Environmental Mitigation Implementation Schedule (EMIS) of the EM&A Manual, in particular:

• Air Quality:

A2: Proper watering of exposed spoil should be undertaken throughout the construction phase:

Any excavated or stockpile of dusty material should be covered entirely by impervious sheeting or sprayed with water to maintain the entire surface wet and then removed or backfilled or reinstated where practicable within 24 hours of the excavation or unloading;

Any dusty materials remaining after a stockpile is removed should be wetted with water and cleared from the surface of roads;

A stockpile of dusty material should not be extend beyond the pedestrian barriers, fencing or traffic cones.

A3: The Contractor should undertake proper watering on all exposed spoil (with at least 8 times per day) throughout the construction phase.

• Water Quality (Construction Phase):

W2: General construction activities on land should also be governed by standard good working practice. Specific measures to be written into the works contracts should include:

Wastewater from temporary site facilities should be controlled to prevent direct discharge to surface or marine waters;

Storm drainage shall be directed to storm drains via adequately designed sand/silt removal facilities such as sand traps, silt traps and sediment basins. Channels, earth bunds or sand bag barriers should be provided on site to properly direct storm water to such silt removal facilities. Catchpits and perimeter channels should be constructed in advance of site formation works and earthworks;

Rainwater pumped out from trenches or foundation excavations should be discharged into storm drains via silt removal facilities;

Discharges of surface run-off into foul sewers must always be prevented in order not to unduly overload the foul sewerage system.

4.2.2 No notification of summons or prosecutions was received during the reporting period.

4.2.3 Statistics on notifications of summons and successful prosecutions are summarized in Appendix I.