TABLE OF CONTENTS
Page
1.4 Summary
of Construction Works
1.5 Summary
of EM&A Programme Requirements
2.4 Monitoring
Parameters and Frequency
2.6 Monitoring
Schedule for the Reporting period
3.4 Monitoring
Parameters and Frequency
3.6 Monitoring
Schedule for the Reporting period
4 ENVIRONMENTAL SITE INSPECTION AND AUDIT
4.2 Advice
on the Solid and Liquid Waste Management Status
4.3 Environmental
Licenses and Permits
4.4 Implementation
Status of Environmental Mitigation Measures
4.5 Summary
of Exceedances of the Environmental Quality Performance Limit
4.6 Summary
of Complaints, Notification of Summons and Successful Prosecutions
5.1 Construction
Programme for the Coming Months
5.2 Key
Issues for the Coming Month
5.3 Monitoring
Schedule for the Coming Month
6 ConclusionS AND RECOMMENDATIONS
List of
Tables
Table 1.1 Contact Information of Key Personnel
Table 2.1 Air Quality
Monitoring Equipment
Table 2.2 Locations of Impact
Air Quality Monitoring Station
Table 2.3 Air Quality
Monitoring Parameters, Frequency and Duration
Table 2.4 Summary of 1-hour TSP
Monitoring Results in the Reporting Period
Table 2.5 Summary of 24-hour
TSP Monitoring Results in the Reporting Period
Table 3.1 Noise Monitoring
Equipment
Table 3.2 Locations of Impact
Noise Monitoring Stations
Table 3.3 Noise Monitoring
Parameters, Frequency and Duration
Table 3.4 Summary of Construction Noise Monitoring Results in
the Reporting Period
Table 4.1 Summary of
Waste Flow Table
Table 4.2 Summary of Environmental Licensing and Permit Status
Figure 1.1 General
Project Layout Plan
Figure 1.2a-b Locations
of Monitoring Station
Figure
4.1 Environmental
Complaint Handling Procedures
List of Appendices
Appendix A Project
Organization Structure
Appendix B Construction
Programme
Appendix C Implementation
Schedule of Environmental Mitigation Measures (EMIS)
Appendix D Summary of Action
and Limit Levels
Appendix E Calibration
Certificates of Monitoring Equipments
Appendix F EM&A
Monitoring Schedules
Appendix G Impact
Air Quality Monitoring Results and their Graphical Presentation
Appendix H Meteorological
Data for the Reporting period
Appendix I Impact
Daytime Construction Noise Monitoring Results and their Graphical Presentation
Appendix K Site
Inspection Summaries
Appendix L Statistics
on Complaints, Notifications of Summons and Successful Prosecutions
The proposed widening of Tolo Highway
and Fanling Highway between Island House Interchange and Fanling (the Project)
is a Designated Project under the Environmental Impact Assessment Ordinance
(Cap. 499) (EIAO). An Environmental Impact Assessment (EIA) Report (the
approved EIA Report) together with an Environmental Monitoring and Audit
(EM&A) Manual (the approved EM&A Manual) were completed and approved
under the EIAO on 14 July 2000 (Register Number: EIA-043/2000).
The objective of the Project ¡°Widening of Tolo Highway / Fanling Highway between Island House Interchange and Fanling¡± is to widen Tolo Highway and Fanling Highway to dual 4-lane carriageway in order to alleviate the current traffic congestion problems and to cope with the increasing transport demands to and from the urban areas and also cross boundary traffic.
The
Project is a designated project and governed by an Environmental Permit
(EP-324/2008) issued by the EPD on 23 December
2008. Subsequently,
the EPD issued Variation of Environmental Permits of EP-324/2008/A, EP-324/2008/B and EP-324/2008/C on 31
January 2012, 17 March 2014 and 27
March 2015 respectively. The
current valid VEP was applied on 19 August 2015 and the VEP (EP-324/2008/D) was
subsequently granted on 27 August 2015.
The construction works for this Project are delivered in 2 stages
i.e. Stage 1 (between Island House Interchange and Tai Hang) and Stage 2
(between Tai Hang and Wo Hop Shek Interchange). Stage 2 would be implemented under two
works contracts. Contract No.
HY2012/06 ¡°Widening of Fanling Highway ¨C Tai Hang to Wo Hop Shek Interchange¡±
and the entrusted portion to CEDD under Contract No. CV/2012/09 ¡±Liantang/Heung
Yuen Wai Boundary Control Point Site Formation and Infrastructure Works ¨C
Contract 3¡±. This report focuses on Contract No. HY2012/06 ¡°Widening
of Fanling Highway ¨C Tai Hang to Wo Hop Shek Interchange¡± in Stage 2 of the Project only.
Pursuant
to the EP (EP-324/2008/D) Condition 2.7, the Capture Survey Trip Report for Ma
Wat River Northern Meander (Version 2) for the Project was submitted on 24
December 2013 by the Environmental Team (ET) and verified by the Independent
Environmental Checker (IEC) on 6 January 2014.
The
construction phase of the Contract under the EP and the Environmental
Monitoring and Audit (EM&A) programme of the contract commenced on 21 November 2013. The impact
environmental monitoring and audit includes air quality and noise monitoring.
This report documents the
findings of EM&A works conducted in the period between 1 and 29 February 2016.
As informed by the Contractor, construction activities in the reporting period
were:
- Ground investigation
- Piling works
- Pipe laying
- Retaining wall construction
- Noise Barrier
- Excavation
- Backfilling
- Drainage
- Temporary bridge construction
- House Construction
-
- Bridge construction
Reporting
Change
There was no reporting change
required in the reporting period.
Breaches of Action and Limit Levels for Air
Quality
No
exceedance of Action and Limit Level was recorded for 1-hour and 24-hour TSP monitoring
in the reporting period.
Breaches of Action and Limit Levels for Noise
No Action or Limit Level exceedance of construction noise was recorded in the reporting month. No noise complaints related to 0700 ¨C 1900 hours on normal weekdays was received and followed by Environmental Team in the reporting month.
Complaint, Notification of Summons and
Successful Prosecution
No complaint, notification of summons and successful prosecution was received in the reporting period.
Future Key Issues
Key
issues to be considered in the coming month include:
-
Properly store and label oils and chemicals on site;
-
Chemical, chemical waste and waste management;
-
Collection of construction waste should be carried out regularly;
-
Properly maintain all drainage facilities and wheel washing
facilities on site;
-
Exposed slopes should be covered up properly if no temporary work
will be conducted;
-
Quieter powered mechanical equipment should be used;
-
Suppress dust generated from excavation activities and haul road
traffic; and
-
Tree protective measures for all retained trees should be well
maintained.
1.1.1.
Tolo Highway and Fanling Highway are the
expressways in the North East New Territories (NENT) connecting Sha Tin, Tai Po
and Fanling. These highways form a vital part of the strategic Route 9, which
links Hong Kong Island to the boundary at Shenzhen. At present, this section of
Route 9 is a dual 3-lane carriageway. However, at several major interchanges along
this section of Route 9, the highway is a dual-2 lane carriageway only. Severe
congestion is a frequent occurrence during the peak periods, particularly in
the Kowloon-bound direction.
1.1.2.
The
objective of the Project ¡°Widening of Tolo Highway / Fanling Highway between
Island House Interchange and Fanling¡± is to widen Tolo Highway and Fanling
Highway to dual 4-lane carriageway in order to alleviate the current traffic
congestion problems and to cope with the increasing transport demands to and
from the urban areas and also cross boundary traffic.
1.1.3.
The
Project is a designated project and governed by an Environmental Permit
(EP-324/2008) issued by the EPD on 23 December 2008. Subsequently, the EPD
issued a Variation of Environmental Permit (EP-324/2008/A) (VEP) on 31 January
2012 and the VEP (EP-324/2008/B) was granted on 17 March 2014. The current
valid VEP was applied on 9 March 2015 and the VEP (EP-324/2008/C) was
subsequently granted on 27 March 2015.
1.1.4.
The scope of the Project comprises
mainly:-
(i) |
Widening
of a 5.7 km section of Tolo Highway and 3.0 km section of Fanling Highway
between Island House Interchange and Wo Hop Shek Interchange from the
existing dual 3-lane to dual 4-lane, including construction of new vehicular
bridges; |
(ii) |
Widening
of interchange sections at Island House Interchange, Tai Po North
Interchange, and Lam Kam Road Interchange from dual 2-lane to dual 3-lane,
except Sha Tin bound carriageway at Tai Po North Interchange, which is
widened from 3-lane to 4-lane, including realignment of various slip roads; |
(iii) |
Modification
and reconstruction of highways, vehicular bridges, underpasses and
footbridges. |
1.1.5.
The
construction works for this Project will be delivered in 2 stages i.e. Stage 1
(between Island House Interchange and Tai Hang) and Stage 2 (between Tai Hang
and Wo Hop Shek Interchange). Stage
2 would be implemented under two works contracts. Contract No. HY/2012/06 ¡°Widening of
Fanling Highway ¨C Tai Hang to Wo Hop Shek Interchange¡± and the entrusted
portion to CEDD under Contract No. CV/2012/09 ¡±Liantang/Heung Yuen Wai Boundary
Control Point Site Formation and Infrastructure Works ¨C Contract 3¡±. This report focuses on
Contract No. HY2012/06 ¡°Widening of Fanling Highway ¨C
Tai Hang to Wo Hop Shek Interchange¡± in Stage 2 of the Project only.
1.1.6.
Hyder-Arup-Black and Veatch Joint
Venture (HABVJV) are appointed by Highways Department (HyD) as the consultants
for the design and construction assignment for the Tolo project under Agreement
No. CE 58/2000 Supplementary Agreement No. 3 (SA3) (i.e. the Engineer for the
Contract).
1.1.7.
China State Construction Engineering
(Hong Kong) Ltd. (CSHK) was commissioned as the Contractor of the Contract.
1.1.8.
AECOM Asia Co. Ltd. was commissioned by China State Construction Engineering (Hong
Kong) Limited as the Environmental Team (ET) to undertake the Environmental Monitoring and Audit (EM&A)
works for the Contract and
Mott MacDonald Hong Kong Ltd. acts as the Independent Environmental Checker
(IEC) for the Contract.
1.1.9.
The construction phase of the Contract under the EP commenced on 21 November 2013.
1.1.10.
According to the updated EM&A
Manual of Stage 2 of
the Project, there is a need of an EM&A programme including air quality and
noise monitoring. The EM&A programme for Stage 2 of the Project commenced on 21 November 2013.
Table 1.1 Contact Information of Key Personnel
Party |
Position |
Name |
Telephone |
Fax |
ER
(Hyder-Arup-Black & Veatch
Joint Venture) |
Chief Resident Engineer |
Edwin
Chung |
6115 0818 |
2638 0950 |
IEC (Mott MacDonald Hong Kong Limited) |
Independent Environmental
Checker |
Steven Tang |
2828 5920 |
2827 1823 |
Contractor (China State Construction
Engineering (Hong Kong) Limited) |
Environmental Officer |
Michael Tsang |
9277 4956 |
2672 2501 |
C C Chow |
9679 6315 |
2672 2501 |
||
ET
(AECOM Asia Company Limited) |
ET Leader |
Y W Fung |
3922 9393 |
3922 9797 |
- Site clearance
- Ground investigation
- Piling works
- Pipe laying
- Retaining wall construction
- Noise Barrier
- Excavation
- Backfilling
- Drainage
- Temporary bridge construction
- House Construction
-
- Bridge construction
-
All monitoring parameters;
-
Monitoring schedules for the reporting
period and forthcoming months;
-
Action and Limit levels for all
environmental parameters;
-
Event / Action Plan;
-
Environmental mitigation measures, as
recommended in the Project EIA study final report; and
- Environmental
requirement in contract documents.
Table
2.1 Air Quality Monitoring Equipment
Equipment |
Brand
and Model |
Portable direct reading dust meter
(1-hour TSP) |
Sibata Digital Dust Monitor (Model
No. LD-3) |
High Volume Sampler |
Tisch Total Suspended Particulate
Mass Flow Controlled High Volume Air Sampler (Model No. TE-5170) |
Table 2.2 Locations of
Impact Air Quality Monitoring Station
Location |
Monitoring
Station |
AM2 (SR2) |
Fanling Government Secondary School |
Table
2.3 Air
Quality Monitoring Parameters and Frequency
Parameter |
Frequency |
24-hour TSP |
Once
every 6 days |
1-hour TSP |
3
times every 6 days while the highest dust impact was expected |
(a)
The HVS was installed in the vicinity
of the air sensitive receivers. The
following criteria were considered in the installation of the HVS.
(i)
A horizontal platform with appropriate
support to secure the sampler against gusty wind was provided.
(ii)
The distance between the HVS and any
obstacles, such as buildings, was at least twice the height that the obstacle
protrudes above the HVS.
(iii)
A minimum of 2 meters separation from
walls, parapets and penthouse for rooftop sampler.
(iv)
A minimum of 2 meters separation from any supporting
structure, measured horizontally.
(v)
No furnace or incinerator flues nearby.
(vi)
Airflow around the sampler was
unrestricted.
(vii)
Permission was obtained to set up the
samplers and access to the monitoring stations.
(viii)
A secured supply of electricity was
obtained to operate the samplers.
(ix)
The sampler was located more than 20
meters from any dripline.
(x)
Any wire fence and gate, required to
protect the sampler, did not obstruct the monitoring process.
(xi)
Flow control accuracy was kept within
¡À2.5% deviation over 24-hour sampling period.
(b)
Preparation of Filter Papers
(i)
Glass fibre filters, G810 were labelled
and sufficient filters that were clean and without pinholes were selected.
(ii)
All filters were equilibrated in the
conditioning environment for 24 hours before weighing. The conditioning
environment temperature was around
(iii)
All filter papers were prepared and
analysed by ALS Technichem (HK) Pty Ltd., which is a HOKLAS accredited
laboratory and has comprehensive quality assurance and quality control
programmes.
(c)
Field Monitoring
(i)
The power supply was checked to ensure
the HVS works properly.
(ii)
The filter holder and the area
surrounding the filter were cleaned.
(iii)
The filter holder was removed by
loosening the four bolts and a new filter, with stamped number upward, on a
supporting screen was aligned carefully.
(iv)
The filter was properly aligned on the
screen so that the gasket formed an airtight seal on the outer edges of the
filter.
(v)
The swing bolts were fastened to hold
the filter holder down to the frame.
The pressure applied was sufficient to avoid air leakage at the edges.
(vi)
Then the shelter lid was closed and was
secured with the aluminum strip.
(vii)
The HVS was warmed-up for about 5
minutes to establish run-temperature conditions.
(viii)
A new flow rate record sheet was set
into the flow recorder.
(ix)
On site temperature and atmospheric
pressure readings were taken and the flow rate of the HVS was checked and
adjusted at around 1.1 m3/min, and complied with the range specified
in the updated EM&A Manual (i.e. 0.6-1.7 m3/min).
(x)
The programmable digital timer was set
for a sampling period of 24 hrs, and the starting time, weather condition and
the filter number were recorded.
(xi)
The initial elapsed time was recorded.
(xii)
At the end of sampling, on site
temperature and atmospheric pressure readings were taken and the final flow
rate of the HVS was checked and recorded.
(xiii)
The final elapsed time was recorded.
(xiv)
The sampled filter was removed
carefully and folded in half length so that only surfaces with collected
particulate matter were in contact.
(xv)
It was then placed in a clean plastic
envelope and sealed.
(xvi)
All monitoring information was recorded
on a standard data sheet.
(xvii)
Filters were then sent to ALS
Technichem (HK) Pty Ltd. for analysis.
(d)
Maintenance and Calibration
(i)
The HVS and its accessories were maintained
in good working condition, such as replacing motor brushes routinely and
checking electrical wiring to ensure a continuous power supply.
(ii)
5-point calibration of the HVS was
conducted using TE
(iii)
Calibration certificate of the HVSs are
provided in Appendix E.
(a)
Measuring Procedures
The measuring procedures of the
1-hour dust meter were in accordance with the Manufacturer¡¯s Instruction Manual
as follows:-
(i)
Turn the power on.
(ii)
Close the air collecting opening cover.
(iii)
Push the ¡°TIME SETTING¡± switch to [BG].
(iv)
Push ¡°START/STOP¡± switch to perform
background measurement for 6 seconds.
(v)
Turn the knob at SENSI ADJ position to
insert the light scattering plate.
(vi)
Leave the equipment for 1 minute upon
¡°SPAN CHECK¡± is indicated in the display.
(vii)
Push ¡°START/STOP¡± switch to perform
automatic sensitivity adjustment. This measurement takes 1 minute.
(viii)
Pull out the knob and return it to
MEASURE position.
(ix)
Push the ¡°TIME SETTING¡± switch the time
set in the display to 3 hours.
(x)
Lower down the air collection opening
cover.
(xi)
Push ¡°START/STOP¡± switch to start
measurement.
(b)
Maintenance and Calibration
(i)
The 1-hour TSP meter was calibrated at
1-year intervals against a continuous particulate TEOM Monitor, Series 1400ab.
Calibration certificates of the Laser Dust Monitors are provided in Appendix E.
(ii)
1-hour validation checking of the TSP
meter against HVS is carried out yearly at the air quality monitoring
locations.
Table
2.4 Summary
of 1-hour TSP Monitoring Results in the Reporting Period
Location |
Average
(mg/m3) |
Range (mg/m3) |
Action
Level (mg/m3) |
Limit
Level (mg/m3) |
AM2 (Fanling Government Secondary School) |
77.5 |
74.9 ¨C 80.9 |
317.8 |
500 |
Table
2.5 Summary
of 24-hour TSP Monitoring Results in the Reporting Period
Location |
Average
(mg/m3) |
Range (mg/m3) |
Action
Level (mg/m3) |
Limit
Level (mg/m3) |
AM2 (Fanling Government Secondary School) |
54.0 |
26.8 ¨C 93.8 |
200.7 |
260 |
Table 3.1 Noise
Monitoring Equipment
Equipment |
Brand and Model |
Integrated
Sound Level Meter |
B&K
2238 |
Acoustic
Calibrator |
Rion NC-74 |
Table 3.2 Locations
of Impact Noise Monitoring Stations
Monitoring Station |
Location |
Description |
M2 |
West
Tai Wo |
1.2m from the ground floor free-field
of the Residential |
M3 |
Fanling
Government Secondary School |
|
Table 3.3 Noise
Monitoring Parameters, Frequency and Duration
Frequency |
|
30-mins measurement at each monitoring station between 0700 and
1900 on normal weekdays. Leq, L10 and L90
would be recorded. |
At least once per week |
(a)
Façade measurement was made at monitoring
station M3, while free-field measurement was made at monitoring
station M2.
(b)
The sound level meter was set on a
tripod at a height of
(c)
The battery condition was checked to
ensure the correct functioning of the meter.
(d)
Parameters such as frequency weighting,
the time weighting and the measurement time were set as follows:-
(i)
frequency weighting: A
(ii)
time weighting: Fast
(iii)
time measurement: Leq(30-minutes)
during non-restricted hours i.e. 07:00 ¨C 1900 on normal weekdays; Leq(5-minutes)
during restricted hours i.e. 19:00 ¨C 23:00 and 23:00 ¨C 07:00 of normal weekdays, whole day of
Sundays and Public Holidays
(e)
Prior to and after each noise measurement,
the meter was calibrated using the acoustic calibrator for 94dB(A) at 1000
Hz. If the difference in the
calibration level before and after measurement was more than 1 dB(A), the
measurement would be considered invalid and repeat of noise measurement would
be required after re-calibration or repair of the equipment.
(f)
During the monitoring period, the Leq,
L10 and L90 were recorded. In addition, site conditions and noise
sources were recorded on a standard record sheet.
(g)
Noise measurement was paused during
periods of high intrusive noise (e.g. dog barking, helicopter noise) if
possible. Observations were recorded when intrusive noise was unavoidable.
(h)
Noise monitoring was cancelled in the
presence of fog, rain, wind with a steady speed exceeding
(a)
The microphone head of the sound level
meter was cleaned with soft cloth at regular intervals.
(b)
The meter and calibrator were sent to
the supplier or HOKLAS laboratory to check and calibrate at yearly intervals.
(c)
Calibration certificates of the sound
level meters and acoustic calibrators are provided in Appendix E.
Table 3.4 Summary of Construction Noise Monitoring Results in the Reporting
Period
|
Average,
dB(A), Leq (30 mins) |
Range,
dB(A), Leq (30 mins) |
Limit
Level, dB(A), Leq (30 mins) |
M2* |
69.4 |
69.2 ¨C 69.6 |
75 |
M3# |
65.5 |
64.1 ¨C 67.5 |
65/70 |
*+3dB(A) Façade correction
included
# Limit Level of 70dB(A) applies to education institutes
while 65dB(A) applies during school examination period.
Air Quality
Noise
Water Quality
Chemical and Waste Management
Landscape and Visual Impact
Miscellaneous
Table 4.1 Summary of Waste Flow Table
Waste
Type |
Actual
Amount |
Disposal/Reuse
Locations |
Inert
C&D materials |
862 m3 (of which 0 m3 was broken concrete) |
Tuen Mun 38 |
General refuse |
70 m3 |
NENT Landfill |
Paper/cardboard
packaging |
73 kg |
Recycling Contractors |
Plastics |
0 kg |
Recycling Contractors |
Metals |
0 kg |
Recycling Contractors |
C&D
materials reused on site |
154 m3 |
Site Area |
C&D
materials reused in other projects |
265 m3 |
Other projects |
C&D
materials reused in NENT for backfilling |
443 m3 |
NENT Landfill |
Chemical wastes |
0 kg |
Licensed Contractors |
Table 4.2 Summary of Environmental Licensing and Permit Status
Statutory Reference |
License/ Permit |
License or Permit No. |
Valid Period |
License/ Permit Holder |
Remarks |
|
From |
To |
|||||
EIAO |
Environmental Permit |
EP-324/2008/D |
27/08/2015 |
N/A |
HyD |
|
WPCO |
Discharge License
(Site) |
WT00017159-2013 |
18/09/2013 |
30/09/2018 |
CSHK |
-- |
WDO |
Chemical Waste
Producer Registration |
5213-722-C3822-01 |
05/09/2013 |
N/A |
CSHK |
Chemical waste
produced in Contract HY/2012/06 |
WDO |
Billing
Account for Disposal of Construction Waste |
7017860 |
N/A |
N/A |
CSHK |
Waste disposal in
Contract HY/2012/06 |
NCO |
Construction Noise
Permit |
GW-RN0785-15 |
04/12/2015 |
05/02/2016 |
CSHK |
Zone 2 Mobilization of Excavator to SA329 (South Bound) |
GW-RN0820-15 |
11/12/2015 |
18/02/2016 |
CSHK |
Zone 2 Erection of Catch Fence near Tai Hang Footbridge (South Bound) |
||
GW-RN0830-15 |
24/12/2015 |
22/03/2016 |
CSHK |
Operation of VMS at north bound of Tolo Highway near Mui Shue Hang |
||
GW-RN0843-15 |
26/12/2015 |
22/03/2016 |
CSHK |
Zone 2 Installation of Precast Beam (South Bound) |
||
GW-RN0861-15 |
18/12/2015 |
03/06/2016 |
CSHK |
Zone 4 Installation of watermain near Caltex Petrol Station |
||
GW-RN0016-16 |
18/01/2016 |
02/02/2016 |
CSHK |
Zone 2 Installation of Precast Beam (South Bound) |
||
GW-RN0022-16 |
31/01/2016 |
24/04/2016 |
CSHK |
Zone 2 Road Making Modification near Wo Po Bridge (South Bound) |
||
GW-RN0029-16 |
21/01/2016 |
20/04/2016 |
CSHK |
Zone 2
Concreting work and lifting operation over MTR's Track |
||
GW-RN0055-16 |
29/01/2016 |
30/06/2016 |
CSHK |
Zone 4 Drainage Inspection at Fanling Highway between CH23.7 and CH24.2 |
||
GW-RN0091-16 |
20/02/2016 |
26/07/2016 |
CSHK |
Zone2 Installation of Precast Beam (South Bound) |
||
GW-RN0112-16 |
21/02/2016 |
17/04/2016 |
CSHK |
Zone 4 Installation of Prefabricated Bridge Sement near Wo Hop Shek (South Bound) |
- Site clearance
- Ground investigation
- Piling works
- Pipe laying
- Retaining wall construction
- Noise Barrier
- Excavation
- Backfilling
- Drainage
- Temporary bridge construction
- House Construction
-
- Bridge construction
- Properly store and label oils and chemicals on site;
- Chemical, chemical waste and waste management;
- Collection of construction waste should be carried out regularly;
- Properly maintain all drainage facilities and wheel washing facilities on site;
- Exposed slopes should be covered up properly if no temporary work will be conducted;
- Quieter powered mechanical equipment should be used;
- Suppress dust generated from excavation activities and haul road traffic; and
- Tree protective measures for all retained trees should be well maintained.
Air Quality Impact
Noise Impact
Water Quality Impact
Chemical and Waste Management
Landscape and Visual Impact
Miscellaneous