1.1.1
Civil Engineering
and Development Department (hereafter referred as “CEDD”) is the Project
Proponent and the Permit Holder of Agreement No. CE 59/2005 (EP)
Development of a Bathing Beach at Lung Mei, Tai Po (hereinafter
referred as “the Project”), which is a Designated Project to be implemented
under Environmental Permit number EP-388/2010 (hereinafter
referred as “the EP-388/2010” or “the EP”).
1.1.2
The major construction activities of the
Project comprise construction of 200-metre
long bathing beach with a groyne at each end, a shark prevention net; a public car park; retaining walls;
and the associated roadworks, drainage and sewerage works. Layout plan of the Project is shown in Appendix A.
1.1.3
Furthermore, the project works is under Environmental Permit
(EP) No. EP-388/2010 as a Designated Project and the designated works
include:
(i)
Construction of a 200m long beach with a groyne at each end of the beach which includes dredging and
sandfilling works;
(ii)
Construction of one culvert at the eastern side of the
beach and another small section of culvert and open drainage channel with
gabion embankments at the western end, both to collect and divert surface
runoff from upstream locations; and
(iii)
Construction of a beach building with associated beach
building facilities, kiosk and a carpark and associated road improvement works
adjoining the facility.
1.1.4
Action-United
Environmental Services & Consulting (hereinafter
referred as “AUES”) has been commissioned as an Independent Environmental Team
(hereinafter referred as “the ET”) to implement the relevant EM&A
program in accordance with the approved
EM&A Manual, as well as the associated duties. As part of the EM&A program, baseline
monitoring is required to determine the ambient environmental conditions.
1.1.5
Baseline monitoring of air quality and noise were carried out during 7 June to 20
June 2017 and 7 June to 23 June 2017 respectively. The Baseline Monitoring Report for Air Quality and Noise (AUES Ref.: TCS00874/16/600/R0022v3 dated 7 Aug 2017) was verified by IEC and had been submitted to EPD for endorsement. Baseline water
quality monitoring was from 23 September 2017 to 21 October 2017. The Baseline Monitoring
Report for
Water Quality (AUES Ref.:
TCS00874/16/600/R0036v2 dated 19 Dec 2017) was verified by IEC and had been submitted
to EPD for endorsement. These
baseline monitoring
reports summarized the key findings of
baseline condition and
determined a set
of Action and Limit Levels (A/L Levels) based on the baseline
data. The A/L Levels will serve as the
yardsticks for assessing the acceptability of the environmental impact during
construction phase of the Project Works impact monitoring.
1.1.6
The construction phase of the
Project was commenced on 1st December 2017; however, no marine works
of dredging and sandfilling was carried out in this
reporting period. Hence, the impact environmental monitoring only for air
quality and construction noise was began on 1st December 2017 as the
project commencement date.
1.1.7
This is the 1st monthly EM&A report presenting the monitoring results and inspection
findings for the reporting period from 1 to 31 December 2017 (hereinafter ‘the Reporting Period’).
1.2.1
The Monthly Environmental Monitoring and
Audit (EM&A) Report is structured into the following sections:-
Section 1 Introduction
Section 2 Project Organization and
Construction progress
Section 3 Summary of Impact Monitoring Requirements
Section 4 Air Quality Monitoring
Section 5 Construction Noise Monitoring
Section 6 Water Quality Monitoring
Section 7 Waste Management
Section 8 Ecology
Section 9 Site Inspection
Section 10 Environmental Complaint and non-compliance
Section 11 Implementation Status of Mitigation Measures
Section 12 Conclusion and Recommendation
2.1.1
Organization structure and contact details of relevant parties
with respect to on-site environmental management are shown in Appendix B.
2.2.1
The 3-month rolling construction program is enclosed in Appendix C and the major construction
activities undertaken in the Reporting Period are listed below:-
·
Tree felling
·
Site clearance
2.3
Summary of Environmental Submissions
2.3.1
Summary of currently relevant permits,
licenses, and/or notifications on environmental protection for this Project in
this Reporting Period is presented in Table 2-1.
Table 2-1 Status of Environmental Licenses and Permits
|
Item
|
Description
|
License/Permit Status
|
|
Permit no./Account no./
Ref. no.
|
From
|
To
|
|
1
|
Air pollution Control (Construction
Dust) Regulation
|
Ref. Number:
418137
|
N/A
|
N/A
|
|
2
|
Chemical Waste Producer Registration
|
Waste
Producers Number (WPN): WPN5213-728-W3437-01
|
21 August
2017
|
End of
Project
|
|
3
|
Water Pollution Control Ordinance
|
License No.: WT00028905-2017
|
24 October 2017
|
31 October 2022
|
|
4
|
Waste Disposal (Charges for Disposal of
Construction Waste) Regulation
|
Billing
Account for Disposal of Construction Waste
Account No. 7017686
|
3 July 2013
|
End of Project
|
2.3.2
The status of environmental submission
under the EM&A Manual and EP requirement is presented in Table 2-2.
Table 2-2 Status of Environmental Licenses and Permits
|
Item
|
EP
condition
|
Description
|
Status
|
|
1
|
2.4
|
Report for Capture and
Relocation of Common Rat
Snake
|
Approved by
EPD on 15 Sep 2017
(EPD ref.:
(15) in EP2/N5/C/46 Pt.6 dated 15 Sep 2017)
|
|
2
|
2.5
|
Landscape Plan
|
Submitted to
EPD on 28 June 2017
|
|
3
|
4.3
|
Baseline Monitoring Report for Air Quality and Noise (AUES Ref.: TCS00874/16/600/R0022v3 dated 7 Aug
2017)
|
Approved by
EPD on 8 Jan 2018
(EPD ref.:
(36) in EP2/N5/C/46 Pt.6 dated 8 Jan 2018)
|
|
4
|
Baseline Monitoring Report for Water Quality(AUES Ref.: TCS00874/16/600/R0036v2 dated 19 Dec 2017)
|
Approved by
EPD on 10 Jan 2018
(EPD ref.:
(37) in EP2/N5/C/46 Pt.6 dated 10 Jan 2018)
|
3.1.1
The Environmental Monitoring and Audit requirements are set out in
the EM&A manual. Environmental issues such as air quality, construction
noise and water quality were identified as the key issues during the
construction phase of the Project. A
summary of the EM&A requirements for air quality, noise monitoring and
water quality are presented in the sub-sections below.
3.2.1
According to the Project EM&A Manual, the Impact monitoring program
covers the following environmental issues:
Ÿ
Air Quality;
Ÿ
Construction Noise; and
Ÿ
Water Quality
3.2.2
A summary of the monitoring parameters is presented in Table
3-1 below.
Table 3-1 Summary
of EM&A Impact Monitoring Requirements
|
Environmental
Issue
|
Parameters
|
|
Air Quality
|
Ÿ 1-hour TSP
Ÿ 24-hour TSP
|
|
Noise
|
Ÿ
Leq (30min) in six consecutive Leq(5 min) between 07:00-19:00 on normal
weekdays
|
|
Water Qaulity
|
In-situ Measurements
Ÿ Dissolved Oxygen
Concentration (mg/L);
Ÿ Dissolved Oxygen Saturation
(% );
Ÿ Salinity (mg/L);
Ÿ Temperature (℃);
Ÿ Turbidity (NTU);
Ÿ pH unit;
Ÿ Current direction (degree);
Ÿ Current speed (m/s); and
Ÿ Water depth (m)
Laboratory Analysis
Ÿ Suspended Solids (mg/L); and
Ÿ Chlorophyll-a (µg/L)
|
Air Quality
3.3.1
There are air quality monitoring locations (A4 and
A6) recommended in
Section 3.1 of the EM&A Manual.
During liaison with the landlord of A6, he refused to provide access and
location for
installation of High Volume Sampler (HVS). Therefore, alternative location (A7) was proposed by
ET in accordance with Section 3.4 of the EM&A Manual. The proposed alternative locations are considered capable
of effectively representing the baseline conditions at the impact monitoring
locations. The proposal (ref no.: TCS00874/16/300/L0016b) for alternative monitoring locations
was verified by IEC and it has been submitted to EPD for approval on 8 May 2017. The air quality
monitoring locations
are in Table
3-2 and illustrated in Appendix D.
Table 3-2 Summary of Air Quality Monitoring Stations
|
Station ID
|
Location
|
|
A4
|
No. 101 Lung Mei Tsuen
|
|
A7
|
Hong Kong Eco-Farm
|
Construction
Noise
3.3.2
According to Section 4.1 of the
EM&A Manual, four
designated noise sensitive receivers (N1, N2, N3 and N4) were
recommended and they are listed in Table 3-3 and illustrated in Appendix D.
Table 3-3 Designated
Noise Monitoring Station according to the EM&A Manual
|
NSR
|
Location
|
|
N1
|
Village
house - No. 165A Lung Mei
|
|
N2*
|
Village
house - No. 103 Lung Mei
|
|
N3
|
Village
house - No. 70 Lo Tsz Tin
|
|
N4
|
Village
house - No. 79 Lo Tsz Tin
|
Remarks:
(*) Noise monitoring should be conducted at N2a (i.e House No. 101 Lung Mei) if it is changed to residential
use during construction phase.
3.3.3
As confirmed on the first day of
baseline monitoring, N2a (House no. 101 Lung Mei) has been changed to
residential use. Therefore, the
noise monitoring is conducted at N2a and to replace N2. Moreover, due to the lack of accessibility of noise
monitoring at NSR N3 (Village house – No. 70 Lo Tsz
Tin), alternative location was proposed to replace N3 to carry out
the noise monitoring.
Having reviewed the surrounding condition, NSR N3a (Village house – No. 66C Lo
Tsz Tin) was proposed with the rationales summarized in
below.
1)
The
distance between N3 and N3a is about 18 meter apart and N3a locates at close
proximity of the project site and major site activities which are likely to
have noise impacts;
2)
N3a is
a village type residential house and it is a noise sensitive receiver (NSR);
3)
Accessibility
for noise monitoring work at N3a is available; and
4)
Minimal
disturbance would be only caused to the proposed monitoring location N3a.
3.3.4
The proposal (ref no.:
TCS00874/16/300/L0016b) for alternative monitoring locations was
verified by IEC and it has been submitted to EPD for approval on 8 May 2017. The noise monitoring
stations are listed in Table 3-4 and illustrated in Appendix D.
Table 3-4 Summary of Noise Monitoring Stations
|
Station ID
|
Description
|
|
N1
|
Village
house - No. 165A Lung Mei
|
|
N2a
|
Village
house - No. 101 Lung Mei
|
|
N3a
|
Village
house - No. 66C Lo Tsz Tin
|
|
N4
|
Village
house - No. 79 Lo Tsz Tin
|
Water Quality
3.3.5
According to EM&A
Manual Sections 5.1.2, two Reference Stations (R1 and
R2), three impact stations (I1, I2 and I3), three sensitive receivers (FCZ1, W1 and M1) and one Gradient station (G1),
were identified to
perform water quality monitoring.
Detailed and co-ordnance of water quality monitoring stations is
described in Table 3-5 and the graphical is shown in Appendix D.
Table 3-5 Location
of Marine Water Quality Monitoring Station
|
Station
|
Coordinates
|
Description
|
|
Easting
|
Northing
|
|
R1
|
842307.4
|
835718.4
|
Reference Station - for the background water quality for Tolo Harbour as it is at the
channel where the water exchange between the enclosed Plover Cove and Tolo Harbour take place. It is
located at south of the Project dredging/sandfilling
area.
|
|
R2
|
840739.4
|
836212.4
|
Reference Station - for the background water quality in the Plover
Cove region. It is located at
southwest of the Project dredging/sandfilling area.
|
|
I1
|
841338.5
|
836588.5
|
Impact Station - located outside the mixing zone of
dredging/sandfilling works of the Project.
|
|
I2
|
841590.3
|
836601.2
|
Impact Station - located outside the mixing zone of
dredging/sandfilling works of the Project.
|
|
I3
|
841807.0
|
836680.9
|
Impact Station - located outside the mixing zone of
dredging/sandfilling works of the Project.
|
|
FCZ1
|
841180.6
|
835230.8
|
Sensitive Receiver - located at the Yim
Tin Tsai East Fish Culture Zone, which is about 1.5 km distance to the
southwest of the dredging/sandfilling area.
|
|
W1
|
841858.9
|
836571.0
|
Sensitive Receiver - located at the Water Sport Centre,
which is about 0.25 km distance to the southeast of the dredging/sandfilling area.
|
|
M1
|
840822.2
|
836416.4
|
Sensitive Receiver - located at the Ting Kok
SSSI, which is about 0.8 km distance to the west of the dredging/sandfilling area.
|
|
G1
|
841483.9
|
835936.1
|
Gradient Station - to assist in the identification of the
source of any impact.
|
3.4.1
The monitoring frequency
and period for impact monitoring are summarized below.
Air Quality Monitoring
3.4.2
Monitoring frequency for air quality impact
monitoring is as follows:
|
Parameters:
|
•
1-hour TSP
•
24-hour TSP
|
|
Frequency:
|
•
3 times every six days during course of works for
1-hour TSP
•
Once every 6 days during course of works throughout
the construction period for 24-hour TSP
|
|
Duration:
|
•
Throughout the construction period
|
Noise Monitoring
3.4.3
Monitoring frequency for noise impact
monitoring is as follows:
|
Parameters:
|
•
Leq(30min), L10 and L90.
|
|
Frequency:
|
•
Leq (30min) in 6
consecutive Leq(5min) for once a week during 07:00-19:00
on normal weekdays
•
L10 and L90 for reference
|
|
Duration:
|
Throughout the
construction period
|
Water Quality (Marine) Monitoring
3.4.4
Monitoring frequency for water quality
impact monitoring is as follows:
|
Parameters:
|
In-situ measurements
including water depth, Dissolved Oxygen (DO) concentration (mg/L) &
saturation (%), Salinity (mg/L), Temperature (ºC) and Turbidity (NTU); and Suspended Solids (mg/L) and
Chlorophyll-a (µg/L) are analyzed by HOKLAS-accredited
laboratory.
|
|
Frequency :
|
Three days a week, at mid ebb
and mid flood tides. The interval between 2 sets of monitoring
will be more than 36 hours.
|
|
Sampling
Depth:
|
(i.)
Three depths: 1m below water surface, 1m
above sea bottom and at mid-depth when the water depth exceeds 6m.
(ii.)
If the water depth is between 3m and 6m,
two depths: 1m below water surface and 1m above sea bottom.
(iii.) If the
water depth is less than 3m, 1 sample at mid-depth is taken
|
|
Duration:
|
During the dredging and sand filling works
|
3.4.5
In addition to the water quality
parameters, other relevant data will also be to measure and record, which are
included the location of the sampling stations, water depth, time, weather
conditions, sea conditions, tidal stage, current water flow direction and
speed, special phenomena and work activities undertaken around the monitoring
and works area that may influence the monitoring results. Observations on any special phenomena
and work underway at the Project site during the time of sampling will also be
to record.
Air Quality Monitoring
3.5.1
The 24-hour and 1-hour TSP levels shall be measured by following
the standard high volume sampling method as set out in the Title 40 of the Code of Federal Regulations, Chapter 1 (Part 50), Appendix B. If the ET proposes to use a direct
reading dust meter to measure 1-hour TSP levels, it shall submit sufficient
information to the IEC to prove that the instrument is capable
of achieving a comparable results to the HVS. The instrument should be calibrated
regularly, and the 1-hour sampling shall be determined on yearly basis by the
HVS to check the validity and accuracy of the results measured by direct
reading method. The filter paper of 24-hour
TSP measurement shall be determined by HOKLAS accredited laboratory.
3.5.2
All equipment to be used for impact air quality monitoring is listed
in Table
3-6.
Table 3-6 Air
Quality Monitoring Equipment
|
Equipment
|
Model
|
|
24-Hour TSP
|
|
High Volume Air Sampler
|
TISCH High Volume Air Sampler, HVS Model
TE-5170
|
|
Calibration Kit
|
TISCH Calibration Kit Mode TE-5025A
|
|
1-Hour TSP
|
|
Portable Dust Meter
|
Sibata LD-3B Laser Dust Meter
|
Noise Monitoring
3.5.3
Sound level meter in compliance with the International Electrotechnical Commission Publications 651: 1979 (Type 1)
and 804: 1985 (Type 1) specifications shall be used for carrying out the noise
monitoring. The sound level meter
shall be checked using an acoustic calibrator. The wind speed shall be checked with a
portable wind speed meter capable of measuring the wind speed in ms-1
for reference.
3.5.4
Noise monitoring equipment to be used for impact monitoring is
listed in Table 3-7.
Table 3-7 Construction
Noise Monitoring Equipment
|
Equipment
|
Model
|
|
Integrating Sound Level Meter
|
Rion NL-31 or Rion NL-52
|
|
Acoustic Calibrator
|
B&K
Type 4231 or Rion NC-74 or Rion NC-73
|
|
Portable Wind Speed Indicator (#)
|
Anemometer
AZ Instrument 8908
|
(#) Wind speed is reference data only and there is no calibration certificate for portable wind speed indicator.
Water Quality Monitoring
3.5.5
For
water quality monitoring, the equipment should fulfill the requirement under the
EM&A Manual Section 5.1.1. Since no impact water quality monitoring was performed in
this reporting period, water
monitoring equipment will not be presented in this report.
Air Quality
1-hour TSP
3.6.1
Operation of the 1-hour TSP meter will follow manufacturer’s Operation and Service Manual.
3.6.2
The 1-hour TSP monitor, brand named “Sibata LD-3B Laser Dust Meter” is a portable, battery-operated laser
photometer. The 1-hour TSP meter provides a real time 1-hour
TSP measurement based on 900 light scattering. The 1-hour TSP
monitor consists of the following:
a.
A pump
to draw sample aerosol through the optic chamber where TSP is measured;
b.
A
sheath air system to isolate the aerosol in the chamber to keep the optics
clean for maximum reliability; and
c.
A
built-in data logger compatible with Windows based program to facilitate data
collection, analysis and reporting.
3.6.3
The 1-hour
TSP meter to be used will be within the valid period, calibrated by the manufacturer
prior to purchasing. Zero response of the instrument will be checked before and after each monitoring event. Annually calibration with the High
Volume Sampler (HVS) in same condition would be undertaken by the Laboratory.
24-hour TSP
3.6.4
The equipment used for 24-hour TSP measurement is the High Volume
Sampler (hereinafter the “HVS”) brand named TISCH, Model TE-5170 TSP High
Volume Air Sampler, which complied with EPA
Code of Federal Regulation, Appendix B
to Part 50. The HVS
consists of the following:
a.
An anodized aluminum shelter;
b.
A 8”x10” stainless steel filter holder;
c.
A blower motor assembly;
d.
A continuous flow/pressure recorder;
e.
A motor speed-voltage control/elapsed time indicator;
f.
A 7-day mechanical timer, and
g.
A power supply of 220v/50 hz
3.6.5
For HVS for 24-hour TSP monitoring, the HVS is mounted in a
metallic cage with a top for protection and also it is sat on the existing
ground or the roof of building. The
flow rate of the HVS between 0.6m3/min and 1.7m3/min will
be properly set in accordance with the manufacturer’s instruction to within the
range recommended in EPA Code of Federal
Regulation, Appendix B to Part 50. Glass Fiber Filter 8" x 10" of
TE-653 will be used for 24-Hour TSP monitoring and would be supplied by
laboratory. The general procedures
of sampling are described as below:-
Ÿ
A horizontal platform with appropriate support to secure the
samples against gusty wind should be provided;
Ÿ
No two samplers should be placed less than 2 meters apart;
Ÿ
The distance between the sampler and an obstacle, such as
building, must be at least twice the height that the obstacle protrudes above
the sample;
Ÿ
A minimum of 2 meters of separation from any supporting structure,
measured horizontally is required;
Ÿ
Before placing any filter media at the HVS, the power supply will
be checked to ensure the sampler work properly;
Ÿ
The filter paper will be set to align on the screen of HVS to
ensure that the gasket formed an air tight seal on the outer edges of the
filter. Then filter holder frame
will be tightened to the filter hold with swing bolts. The holding pressure should be
sufficient to avoid air leakage at the edge.
Ÿ
The mechanical timer will be set for a sampling period of 24 hours
(00:00 mid-night to 00:00 mid-night next day). Information will be recorded on the
field data sheet, which would be included the sampling data, starting time, the
weather condition at current and the filter paper ID with the initial weight;
Ÿ
After sampling, the filter paper will be collected and transfer
from the filter holder of the HVS to a sealed envelope and sent to a local HOKLAS
accredited laboratory for quantifying.
3.6.6
All the sampled 24-hour TSP filters will be
collected and put into the filter envelope provided by the laboratory. The sample will be kept in normal air conditioned
room conditions, i.e. 70% HR (Relative Humidity) and 25oC and
delivery to the office within 48 hours and sent to laboratory for analysis. The sampled filter will be kept in the
laboratory for six
months prior to disposal.
3.6.7
The HVS used for 24-hour TSP monitoring will be calibrated before
the commencement for sampling, and after in two months interval for 1 point
checking of maintenance and six months interval for five points calibrate in
accordance with the manufacturer’s instruction using the NIST-certified
standard calibrator (TISCH Calibration Kit Model TE-5025A) to establish a relationship
between the follow recorder meter reading in cfm (cubic feet per minute) and
the standard flow rate, Qstd, in m3/min. Motor brushes of HVS will be regularly
replaced of about five hundred hours per time.
Construction Noise
3.6.8
As referred to in the Technical Memorandum (TM) issued under the
NCO, sound level meters in compliance with the International Electrotechnical
Commission Publications 651: 1979 (Type 1) and 804:1985 (Type 1) specifications
shall be used for carrying out the noise monitoring. Immediately prior to and
following each noise measurement the accuracy of the sound level meter shall be
checked using an acoustic calibrator generating a known sound pressure level at
a known frequency. Measurements may be accepted as valid only if the
calibration levels from before and after the noise measurement agree to within
1.0 dB.
3.6.9
All noise measurements will be performed with the meter set to
FAST response and on the A-weighted equivalent continuous sound pressure level (Leq). Leq(30 min) in six
consecutive Leq(5 min) measurements will be used as the
monitoring parameter for the time period between 07:00-19:00 hours on weekdays.
3.6.10
The sound level meter will be mounted on a tripod at a height of
1.2 m and placed at the assessment point and oriented such that the microphone
is pointed to the site with the microphone facing perpendicular to the line of
sight. The windshield will be fitted for all measurements. Where a
measurement is to be carried out at a building, the assessment point would
normally be at a position 1 m from the exterior of the building façade. Where a
measurement is to be made for noise being received at a place other than a
building, the assessment point would be at a position 1.2 m above the ground in
a free-field situation, i.e. at least 3.5 m away from reflective surfaces such
as adjacent buildings or walls.
3.6.11
Immediately prior to and following each noise measurement the
accuracy of the sound level meter will be checked using an acoustic calibrator
generating a known sound pressure level at a known frequency. Measurements will be accepted as valid
only if the calibration level from before and after the noise measurement
agrees to within 1.0 dB.
3.6.12
Noise measurements will not be made in fog, rain, wind with a
steady speed exceeding 5m/s or wind with gusts exceeding 10m/s. The wind speed
will be checked with a portable wind speed meter capable of measuring the wind
speed in m/s.
Water Quality (Marine) Monitoring
3.6.13
Marine water quality monitoring will be conducted at the
designated locations in accordance with EM&A Manual. The operating and
analytical of sampling procedures are described as below:
Ÿ A Global
Positioning System (GPS) will be used to ensure that the correct location was
selected prior to sample collection.
A portable, battery-operated echo sounder will be used for the
determination of water depth at each designated monitoring station.
Ÿ The marine water sampler will
be lowered into the water body at a predetermined depth. The trigger system of
the sampler is activated with a messenger and opening ends of the sampler are
closed accordingly then the sample of water is collected.
Ÿ During the sampling, the
sampling container will be rinsed to use a portion of the marine water sample
before the water sample is transferred to the container. Upon sampling completion, the container
is sealed with a screw cap.
Ÿ Before the sampling process,
general information such as the date and time of sampling, weather condition
and tidal condition as well as the personnel responsible for the monitoring will
be recorded on the monitoring field data sheet.
Ÿ In-situ measurement including
water temperature, turbidity, dissolved oxygen, salinity, pH and water depth
undertake at the identified monitoring point. At
each station, marine water samples are collected at three depths: 1m below
water surface, 1m above sea bottom and at mid-depth when the water depth
exceeds 6m. Samples at 1m below
water surface and 1m above sea bottom are collected when the water depth is
between 3m and 6m. Only 1 sample at
mid-depth is taken when the water depth is below 3m.
Ÿ For the
in-situ measurement, two consecutive measurements of sampling depth,
temperature, dissolved oxygen, salinity, turbidity and pH concentration will be
measured at the sea. The YSI ProDSS
Multifunctional Meter is retrieved out of the water after the
first measurement and then re-deployed for the second measurement. Where the difference in the value
between the first and second readings of each set is more than 25% of the value
of the first reading, the reading is discarded and further readings is taken.
Ÿ Water
sample collection would be used the water sampler. During the water sample collected from
the sea, it is filled in high-density
polythene bottles. Before the water
sample storage, the sampling bottles will be pre-rinsed with the same water
sample. The sample bottles then is
packed in cool-boxes (cooled at 4OC without being frozen), and
delivered to HOKLAS accredited laboratory for the chemical analysis as followed
APHA Standard Methods.
Ÿ The laboratory has been comprehensive quality
assurance and quality control programmes. For QA/QC procedures, one duplicate
samples of every batch of 20 samples is analyzed as followed the HOKLAS
accredited requirement.
3.6.14
During marine
water sampling period, all in-situ measurement equipment will be calibrated at
three months interval accordingly. Except for the Current Velocity and
Direction water flow meter will be
calibrated every two years as recommended by the manufactory. Available
calibration certificates will be issued to ensure the performance of equipment
to use for in-situ measurement.
3.6.15
Before each
round of monitoring, the dissolved oxygen probe will be calibrated by wet bulb
method; a zero check in distilled water will be performed with the turbidity and
salinity probes; 4 and 10 values of the standard solution will be undertaken to
check the accuracy of pH value.
3.6.16
The calibration
certificates of monitoring equipment of air quality and construction noise are
shown in Appendix E.
Laboratory Analysis
3.6.17
All water samples included the duplicate samples, will be conducted
the chemical analysis as specified in the EM&A Manual by a
HOKALS accredited laboratory - ALS Technichem (HK) Pty Ltd. The
chemicals analysis method and reporting limit show Table 3-8.
Table 3-8 Testing Method and
Reporting Limit of the Chemical Analysis
|
Parameter
|
ALS Method Code
|
In-house
Method Reference 1
|
Reporting Limit
|
|
Total
Suspended Solids
|
EA025
|
APHA
2540D
|
2 mg/L
|
|
Chlorophyll-a
|
EP008F
|
APHA 10200 H2&H3
|
0.1 μg/L
|
Note:
1.
The exact method shall depend on the laboratory accredited
method. APHA = Standard
Methods for the Examination of Water and Wastewater by the American Public
Health Association.
3.7.1
The meteorological information including wind direction, wind speed,
humidity, rainfall, air pressure and temperature etc. during impact
monitoring is
extracted from the closest Hong Kong Observatory Station. To obtain the most appropriate meteorological information
where available,
Air Temperature/Pressure and Relative Humidity will be extracted from Tai Po
Station and wind speed and direction will be extracted from Tai Mei Tuk Station.
3.8.1
The baseline results form the basis for determining the environmental
acceptance criteria for the impact monitoring. A summary of the Action/Limit (A/L)
Levels for air quality, construction noise and water quality are shown in Table
3-9, 3-10 and 3-11 respectively.
Table 3-9 Action
and Limit Levels for Air Quality
|
Monitoring Station
|
Action Level (mg /m3)
|
Limit Level (mg/m3)
|
|
1-hour TSP
|
24-hour TSP
|
1-hour TSP
|
24-hour TSP
|
|
A4
|
275
|
142
|
500
|
260
|
|
A7
|
274
|
141
|
500
|
260
|
Table 3-10 Action and Limit Levels for
Construction Noise
|
Time Period
|
Action Level in dB(A)
|
Limit Level in dB(A)
|
|
0700-1900
hours on normal weekdays
|
When one documented complaint
is received
|
75
dB(A)
|
Table 3-11 Action and Limit Levels for
Water Quality
|
Monitoring Location
|
Depth Average of SS (mg/L)
|
|
Action Level
|
Limit Level
|
|
I1
|
7.0
|
AND
120% of any reference stations at the same tide of the same day
|
7.5
|
AND
130% of any reference stations at the same tide of the same day
|
|
I2
|
7.0
|
8.1
|
|
I3
|
8.3
|
15.0
|
|
W1
|
8.0
|
8.6
|
|
M1
|
10.0
|
11.0
|
|
FCZ1
|
7.0
|
8.0
|
|
|
|
Monitoring Location
|
Chlorophyll-a (μg/L)
|
|
Surface, Middle & Bottom
|
|
Action Level
|
Limit Level
|
|
I1
|
11.1
|
12.1
|
|
I2
|
11.0
|
13.1
|
|
I3
|
11.3
|
14.5
|
|
W1
|
11.3
|
16.1
|
|
M1
|
16.9
|
42.4
|
|
FCZ1
|
11.8
|
12.5
|
|
|
Monitoring Location
|
Dissolved
Oxygen (mg/L)
|
|
Depth
Average of Surface and Mid-depth
|
Bottom
|
|
Action
Level
|
Limit Level
|
Action
Level
|
Limit Level
|
|
I1
|
5.08
|
4.80
|
N/A
|
N/A
|
|
I2
|
5.26
|
4.88
|
3.64
|
3.37
|
|
I3
|
5.03
|
4.77
|
4.09
|
3.19
|
|
W1
|
4.67
|
4.54
|
2.41
|
2.33
|
|
M1
|
4.73
|
4.70
|
N/A
|
N/A
|
|
FCZ1
|
5
|
5
|
3.43
|
3.18
|
|
|
|
Monitoring Location
|
Depth Average of Turbidity (NTU)
|
|
Action Level
|
Limit Level
|
|
I1
|
2.8
|
AND
120% of any reference stations at the same tide of the same day
|
2.9
|
AND
130% of any reference stations at the same tide of the same day
|
|
I2
|
3.5
|
7.7
|
|
I3
|
2.6
|
3.0
|
|
W1
|
2.9
|
3.3
|
|
M1
|
5.2
|
6.6
|
|
FCZ1
|
3.2
|
3.4
|
Notes:
(a)
For DO, non-compliance of water quality
limits occurs when monitoring result is lower than the limits
(b)
For SS, chlorophyll-a and turbidity, non-compliance
of the water quality limits occurs when monitoring result is higher than the
limits.
(c)
Both Action and Limit Levels for DO
(surface and middle) in the FCZ1 are less than 5 mg/L.
Event Action Plan
3.8.2
Should
non-compliance of the environmental quality criteria occurs, remedial actions
will be triggered according to the Event and Action Plan which presented in Appendix F.
3.9 Data Management and Data QA/QC
Control
3.9.1
The impact monitoring data were handled by the
ET’s in-house data
recording and management system.
3.9.2
The monitoring data recorded in the equipment were downloaded
directly from the equipment at the end of each monitoring day. The downloaded monitoring data were
input into a computerized database properly maintained by the ET. The laboratory results were input
directly into the computerized database and checked by personnel other than those
who input the data.
3.9.3
For monitoring parameters that require laboratory analysis, the
local laboratory shall follow the QA/QC requirements as set out under the
HOKLAS scheme for the relevant laboratory tests.
4.
Air Quality Monitoring
4.1.1
In the Reporting Period, air quality monitoring were performed at the proposed monitoring locations A4 and A7.
4.1.2
The air quality monitoring schedule is presented in Appendix G and the monitoring results are summarized in the following
sub-sections.
4.2.1
In the Reporting Period, 6 sessions of 1-hour TSP and 24-hours TSP monitoring were carried out and
the monitoring results are summarized in Tables 4-1 to 4-4. The detailed
24-hour TSP monitoring data are presented in Appendix H and the relevant graphical plots are shown in Appendix I.
Table 4-1 Summary
of 24-hour and 1-hour TSP Monitoring Results (A4)
|
Date
|
24-hour TSP (mg/m3)
|
1-hour TSP (mg/m3)
|
|
Date
|
Start Time
|
1st reading
|
2nd reading
|
3rd reading
|
|
1-Dec-17
|
42
|
1-Dec-17
|
9:22
|
36
|
41
|
43
|
|
6-Dec-17
|
68
|
7-Dec-17
|
9:18
|
141
|
137
|
147
|
|
12-Dec-17
|
110
|
13-Dec-17
|
9:28
|
55
|
55
|
57
|
|
18-Dec-17
|
77
|
19-Dec-17
|
9:51
|
50
|
54
|
67
|
|
22-Dec-17
|
71
|
23-Dec-17
|
9:37
|
69
|
72
|
67
|
|
28-Dec-17
|
80
|
29-Dec-17
|
9:37
|
72
|
72
|
74
|
|
Average
(Range)
|
75
(42 – 110)
|
Average
(Range)
|
73
(36 – 147)
|
Table 4-2 Summary
of 24-hour and 1-hour TSP Monitoring Results (A7)
|
Date
|
24-hour TSP (mg/m3)
|
1-hour TSP (mg/m3)
|
|
Date
|
Start Time
|
1st reading
|
2nd reading
|
3rd reading
|
|
1-Dec-17
|
33
|
1-Dec-17
|
9:30
|
40
|
41
|
44
|
|
6-Dec-17
|
44
|
7-Dec-17
|
9:35
|
155
|
152
|
143
|
|
12-Dec-17
|
75
|
13-Dec-17
|
13:24
|
52
|
59
|
57
|
|
18-Dec-17
|
73
|
19-Dec-17
|
9:42
|
57
|
65
|
69
|
|
22-Dec-17
|
81
|
23-Dec-17
|
13:06
|
68
|
69
|
71
|
|
28-Dec-17
|
63
|
29-Dec-17
|
13:16
|
71
|
72
|
75
|
|
Average
(Range)
|
62
(33 – 81)
|
Average
(Range)
|
76
(40 – 155)
|
4.2.2
As shown in Tables 4-1 to 4-2, all the 1-hour TSP and 24-hour TSP monitoring results were below
the Action/Limit Levels. No
Notification of Exceedance (NOE) was issued in this Reporting Period.
4.2.3
The meteorological data during the impact monitoring period are summarized in Appendix J.
5.1.1
In the Reporting Period, construction noise quality
monitoring were performed at the designated monitoring
locations N1, N2a, N3a and N4.
5.1.2
The noise quality monitoring schedule is presented in Appendix G and the monitoring results are summarized in the following
sub-sections.
5.2.1
In the Reporting Period, 5 sessions
of noise monitoring were carried out at the designated locations. Free-field status were performed
at N1 and N3a; so façade correction (+3 dB(A)) has
been added for the correction in according to the acoustical principles and EPD
guidelines. The noise monitoring
results at the designated locations are summarized in Tables 5-1 to 5-4. The detailed noise monitoring data are presented in Appendix H and the relevant graphical plots are shown in Appendix I.
Table 5-1 Construction
Noise Monitoring Results of N1
|
Date
|
N1 (dB(A))
|
|
Start Time
|
Leq30min
|
*Corrected Leq30min
|
|
1-Dec-17
|
9:56
|
57
|
60
|
|
7-Dec-17
|
10:04
|
56
|
59
|
|
13-Dec-17
|
10:12
|
57
|
60
|
|
19-Dec-17
|
10:26
|
56
|
59
|
|
29-Dec-17
|
10:34
|
57
|
60
|
Remark: (*)
A façade correction of +3dB(A) has been added
according to acoustical principles and EPD guidelines.
Table 5-2 Construction
Noise Monitoring Results of N2a
|
Date
|
N2a (dB(A))
|
|
Start Time
|
Leq30min
|
|
1-Dec-17
|
9:25
|
58
|
|
7-Dec-17
|
9:32
|
58
|
|
13-Dec-17
|
9:40
|
58
|
|
19-Dec-17
|
9:55
|
63
|
|
29-Dec-17
|
9:57
|
59
|
Table 5-3 Construction
Noise Monitoring Results of N3a
|
Date
|
N3a (dB(A))
|
|
Start Time
|
Leq30min
|
*Corrected Leq30min
|
|
1-Dec-17
|
10:33
|
51
|
54
|
|
7-Dec-17
|
10:06
|
52
|
55
|
|
13-Dec-17
|
10:47
|
55
|
58
|
|
19-Dec-17
|
11:01
|
53
|
56
|
|
29-Dec-17
|
11:10
|
56
|
59
|
Remark: (*)
A façade correction of +3dB(A) has been added
according to acoustical principles and EPD guidelines.
Table 5-4 Construction
Noise Monitoring Results of N4
|
Date
|
N4 (dB(A))
|
|
Start Time
|
Leq30min
|
|
1-Dec-17
|
11:05
|
60
|
|
7-Dec-17
|
9:33
|
57
|
|
13-Dec-17
|
11:21
|
58
|
|
19-Dec-17
|
11:33
|
59
|
|
29-Dec-17
|
13:09
|
58
|
5.2.2
Leq(30min) fluctuated below the environmental quality criteria as shown in Table
5-1 to Table 5-4.
Furthermore, no complaint on construction
noise was registered, indicating no exceedance of Action Level. No
non-compliance was therefore found during the Reporting Period.
5.2.3
The meteorological data during the impact monitoring period are summarized in Appendix J.
6.1.1
In the Reporting Period, no impact water quality monitoring was
performed at the designated monitoring
locations.
6.1.2
The impact water quality monitoring shall be conducted when the
marine works of dredging and sandfilling activities
is under operation. Once the construction programme and the work schedule for
the dredging and sandfilling activities are
confirmed, the impact water quality monitoring will be begun.
6.2.1
No impact water quality monitoring was performed in this reporting
period at the designated monitoring locations. Hence, no result for water quality
monitoring is presented in this subsection.
7.1.1
Waste management was carried out by an on-site Environmental
Officer or an Environmental Supervisor from time to time.
7.2.1
All types of waste arising from the construction work are
classified into the following:
Ÿ
Construction & Demolition (C&D)
Material;
Ÿ
Chemical Waste;
Ÿ
General Refuse; and
Ÿ
Excavated Soil.
7.2.2
The quantities of waste for disposal in this Reporting Period are
summarized in Tables 7-1 and 7-2 and the Monthly Summary Waste
Flow Table is shown in Appendix K. Whenever possible, materials were reused on-site as far as
practicable.
Table 7-1 Summary
of Quantities of Inert C&D Materials
|
Types
of Waste
|
Quantity
|
Disposal
Location
|
|
Total C&D Materials (Inert) (‘000m3)
|
0
|
NA
|
|
Reused in this Contract (Inert) (‘000m3)
|
0
|
NA
|
|
Reused in other
Projects (Inert) (‘000m3)
|
0
|
NA
|
|
Disposal as Public
Fill (Inrt) (‘000m3)
|
0
|
NA
|
Table 7-2 Summary
of Quantities of C&D Wastes
|
Types
of Waste
|
Quantity
|
Disposal
Location
|
|
Recycled Metal (‘000kg)
|
0
|
NA
|
|
Recycled Paper / Cardboard Packing (‘000kg)
|
0
|
NA
|
|
Recycled Plastic (‘000kg)
|
0
|
NA
|
|
Chemical Wastes
|
0
|
NA
|
|
General Refuse (‘000kg)
|
0.0325
|
NENT
|
Common Rat Snake
8.1.1
According
to the approved EM&A Manual, a one
day-time search of the Common Rat Snake within the land based Proposed Beach
Development shall be undertaken.
All recorded Common Rat Snake will be caught by hand and translocated to the shrubland
at the north of the Study Area, immediately
after the search.
8.1.2
The Capture
survey of the snake has been done by a qualified ecologist
systematically throughout the proposed survey area on 24th March
2017 and no snake was noticed/captured during the
survey period. The report for capture
and relocation of Common Rat Snake which was certified by ET and verified by IEC has been submitted to EPD on 10th August 2017 and approved by EPD
on 15th September 2017.
Marine Fauna Translocation (Except seahorses)
Fauna Translocation Surveys
8.2.1
In the Reporting Period, fauna translocation surveys were conducted
on 7th -8th of December 2017, 11th -13th
of December 2017, 18th of December 2017, 29th of December
2017 and 30th of December 2017, respectively. For the Fauna
Translocation
Survey up to December 2017, a total of 43
individuals of Favonigobius reichei and 2
individuals of Takifugu niphobles,
which are two of the particular target fish species listed on EP, were captured and relocated to Ting Kok
East. Moreover, three
species of target echinoderms were recorded during the survey. In total, 334 individuals of Archaster typicusm; 81
individuals of Salmacis sphaeroides
and 9 individuals of Holothuria atram, were captured and relocated to Ting Kok
East.
9.1.1
According to the approved EM&A Manual, the environmental site
inspection shall be formulation by EL Leader. The site inspection and audits
should be conducted twice per month by ET.
9.2 Findings
/ Deficiencies
During the Reporting Month
9.2.1
In the Reporting Period, joint site inspection and audit to
evaluate site environmental performance was carried out by the RE, ET and the
Contractor on 14 and 19 December
2017. No non-compliance was noted
within this reporting period.
9.2.2
The
findings / deficiencies that observed during the weekly site inspection are
listed in Table 9-1.
Table 9-1 Site
Observations
|
Date
|
Findings / Deficiencies
|
Follow-Up Status
|
|
14 December 2017
|
•
No adverse environmental issues were observed.
|
NA
|
|
19 December 2017
|
•
Muddy
trails were observed at the site exit, the Contractor should properly
maintain the wheel washing facilities and ensure all vehicles were washed
prior leaving the site.
|
•
No muddy trails were as observed during site inspection on 4 Jan 2018.
|
|
•
Exposed slope was observed next to the
channel, the Contractor should cover the slope with tarpaulin sheet to
minimize muddy runoff.
|
•
To be followed.
|
|
•
Free standing chemical containers were
observed, the Contactor should place the chemical
container with drip tray underneath to prevent leakage on ground and
contamination.
|
•
To be followed.
|
|
•
The Contractor was reminded to provide
signage at site exit to alert the driver to stop and carry out wheel washing
before leaving the site.
|
•
No required for reminder.
|
|
•
It is noted
that the Contractor has registered
chemical waste producer.
However, the Contractor was reminded to provide
a proper chemical waste storage area on site even though no chemical waste was generated on site yet.
|
•
No required for reminder.
|
10.1.1
In
the Reporting Period, no environmental complaint, summons and
prosecution was received.
10.1.2
In
the Reporting Period, no summons
and prosecution under the EM&A Programme was lodged for the project. The statistical summary table of environmental complaint is
presented in Tables 10-1, 10-2 and 10-3.
Table 10-1 Statistical Summary
of Environmental Complaints
|
Reporting Period
|
Environmental Complaint
Statistics
|
|
Frequency
|
Cumulative
|
Complaint Nature
|
|
1 – 31
December 2017
|
0
|
0
|
NA
|
Table 10-2 Statistical Summary
of Environmental Summons
|
Reporting Period
|
Environmental Summons
Statistics
|
|
Frequency
|
Cumulative
|
Summons Nature
|
|
1 – 31
December 2017
|
0
|
0
|
NA
|
Table 10-3 Statistical Summary
of Environmental Prosecution
|
Reporting Period
|
Environmental Prosecution
Statistics
|
|
Frequency
|
Cumulative
|
Prosecution Nature
|
|
1 – 31
December 2017
|
0
|
0
|
NA
|
11.1.1
The environmental mitigation measures that recommended in the
Implementation Schedule for Environmental Mitigation Measures (ISEMM) in the
approved EM&A Manual covered the issues of dust, noise, water, ecology and waste etc.
and they are summarized presented in Appendix L.
11.1.2
The Contractor had been implementing the required environmental
mitigation measures according to the Environmental Monitoring and Audit
Manual subject to the site condition. Environmental mitigation measures
generally implemented by the Contractor in this Reporting Month are summarized
in Table 11-1.
Table 11-1 Environmental
Mitigation Measures in the Reporting Month
|
Issues
|
Environmental Mitigation Measures
|
|
Construction Noise
|
·
Regularly to maintain all plants,
so only the good condition plants are used on-site ;
·
If possible, all mobile plants
onsite operation has located far from NSRs;
·
When machines and plants (such as
trucks) is not in using, it was switched off;
·
Wherever possible, plant was prevented oriented directly the nearby NSRs;
·
Provided quiet powered mechanical
equipment to use onsite;
·
Moveable noise barriers were
temporary used for construction work; and
·
Weekly noise monitoring was
conducted to ensure construction noise meet the criteria.
|
|
Air Quality
|
·
Any stockpile of dusty material was covered
entirely with impervious sheeting or sprayed with water so as to maintain the
entire surface wet;
·
The construction plants regularly
maintained to avoid the emissions of black smoke;
·
The construction plants switched off when it
not in use;
·
Where a vehicle leaving the works site is
carrying a load of dusty materials, the load has covered entirely with clean
impervious sheeting; and
·
Before any vehicle leaving the works site,
wheel watering has been performed.
|
|
Water Quality
|
·
Impervious sheeting was paved on exposed
soil surfaces to reduce the potential of soil erosion;
·
Debris and refuse generated on-site
collected daily;
·
Stockpiles of the cement and other
construction materials were covered when not being used;
·
Oils and fuels are stored in designated
areas with locks;
·
The chemical waste storage as sealed area
provided with locks;
·
Sedimentation
facilities was provided to remove silt particles from groundwater;
·
Sand
bags were provided surrounding the boundary of working site to prevent
wastewater or site surface water runoff get into public areas; and
·
Portable chemical toilets are provided
on-site. A licensed contractor is regularly disposal and maintenance of these
facilities.
|
|
Waste and Chemical Management
|
· Excavated material reused on site as far as
possible to minimize off-site disposal. Scrap metals or abandoned equipment
should be recycled if possible;
· Waste arising kept to a minimum and be handled,
transported and disposed of in a suitable manner;
· Disposal of C&D wastes to any designed public
filling facility and/or landfill followed a trip ticket system; and
· Chemical
waste handled in accordance with the Code of Practice on the Packaging,
Handling and Storage of Chemical Wastes.
|
|
General
|
Ÿ The
site is generally kept tidy and clean.
Ÿ Mosquito control is performed
to prevent mosquito breeding on site.
|
11.2.1
Construction
activities to be undertaken in January 2018 should be included
below:-
·
Tree transplanting from Lung Mei to Pak Shek Kok
·
Tree felling
·
Dredging
11.2.2
Potential
environmental impacts arising from the works include:
·
Construction waste
·
Air quality
·
Construction noise
·
Water quality (particularly site runoff during
rainy seasons)
11.2.3
Environmental
mitigation measures will be properly implemented and maintained as per the
Mitigation Implementation Schedule in Appendix L
to ensure site environmental performance is acceptable.
12.1.1
This is the 1st monthly EM&A report presenting the monitoring
results and inspection findings for the reporting period from 1 to 31 December 2017.
12.1.2
In this Reporting Period, no construction
noise monitoring results that triggered the Limit Level was recorded. No NOE or the associated corrective
actions were therefore issued.
Moreover, no noise complaint (which is an Action Level exceedance) was
received by the ER, EPD and the Contractor.
12.1.3
In this Reporting Period, no air quality monitoring
exceedance was recorded. No NOE or the associated corrective actions were
therefore issued.
12.1.4
In the Reporting Period, joint site inspection and audit to
evaluate site environmental performance was carried out by the RE, ET and the
Contractor on 14 and 20
December 2017. No non-compliance was noted
within this reporting period.
12.1.5
No environmental complaints, notification of summons or successful
prosecution were received in this Reporting Period.
12.2.1
During the dry season; stockpile of dusty materials should be
either covered entirely by impervious sheets; place in area sheltered on the
top and three sides; or sprayed with water to maintain the entire surface wet
at all the time. Also, all dump trucks entering or leaving the Project Site
should be provided with mechanical covers in good service condition.
12.2.2
Water quality mitigation measures such as prevention of muddy
water and other water quality pollutants via site surface water runoff get into
public area should be avoided. Mitigation
measures for water quality should be properly implemented.
12.2.3
Construction noise should be a key environmental impact during the
works. The noise mitigation
measures such as use of quiet plants and installation of temporary noise
barrier at the construction noise predominate area should be fully implemented as
accordance with the EM&A requirement.
12.2.4
As a general reminder, housekeeping of the site and site tidiness
should be undertaken after every day work completion. Also, drip tray should be provided for
chemical container to prevent land contamination. Addition, mosquito control should be kept
to prevent mosquito breeding on site.
