13.1
This monthly EM&A Report presents the EM&A work undertaken in April 2023 in accordance with the Updated
EM&A Manual.
13.2
Seven (7) Limit Level for DO, One (1) Action Level and Four (4) Limit Level for turbidity,
and Three (3) Limit Level for Suspended Solid of impact water quality
monitoring were recorded.
13.3 No Action/Limit
Level exceedance for air quality, construction noise, ambient arsenic, landfill
gas monitoring and build heritage monitoring was recorded in the reporting month.
Contract No.
ND/2019/01
13.4
Environmental
site inspections were conducted on 4, 11, 18 and 27 Apr 23 by ET in the reporting month.
Contract No. ND/2019/02
13.5
Environmental
site inspections were conducted on 3, 12, 21 and 26 Apr 23 by ET in the reporting month.
Contract No. ND/2019/03
13.6
Environmental
site inspections were conducted on 6, 13, 18 and 28 Apr 23 by ET in the reporting month.
Contract No.
ND/2019/04
13.7
Environmental
site inspections were conducted on 4, 13, 20 and 26 Apr 23 by ET in the reporting month.
Contract No.
ND/2019/05
13.8
Environmental
site inspections were conducted on 3, 11, 20 and 24 Apr 23 by ET in the reporting month.
Contract No.
ND/2019/06
13.9
Environmental
site inspections were conducted on 4, 13, 20 and 26 Apr 23 by ET in the reporting month.
Contract No.
ND/2019/07
13.10 Environmental site inspections were
conducted on 4,
14, 21 and 28 Apr 23 by
ET in the reporting month.
13.11 Two environmental complaints were
received in the reporting month. No notification of summons or successful prosecutions
was received
in the reporting month.
13.12 The ET would keep track on the
EM&A programme to ensure compliance of
environmental requirements and the proper implementation of all necessary
mitigation measures.
13.13 According to the environmental audits performed in the reporting
month, the following recommendations were made:
Air Quality Impact
· To regular water haul roads;
· To provide vehicle washing
facilities with high pressure water jet at every discernible or designated
vehicle exit point;
· To maintain the impervious material to entirely cover the stockpile
of dusty materials; and
· To ensure all regulated machines displayed with valid Non-road Mobile Machinery (NRMM) labels.
Construction Noise Impact
· To ensure compressor operated
with doors closed.
Water Impact
· To review and implement temporary
drainage system;
· To prevent any surface runoff
discharge into Sheung Yuen River, Ma Wat River or public
road;
· To provide sandbags or construct berm to prevent any outflow of
muddy water from site area;
· To ensure all vehicle clear of earth
and mud before leaving the site areas;
· To ensure the drainage facilities would not be clogged with waste or
sediment to avoid overflow;
· To regularly check the condition of desilting materials for proper
function;
· To regularly maintain and ensure
water treatment facilities proper operation and function;
· To divert all the water generated from the construction site to de-silting facilities with sufficient handling
capacity before discharge; and
· To avoid or regularly clear the stagnant water in
drip trays;
Waste/Chemical Management
· To dispose of general refuse properly;
· To clear and avoid oil stains at site areas;
· To provide proper storage areas for chemical; and
· To maintain drip trays for
chemical storage well.
Landfill Gas Hazard
· “No Smoking” and “No Naked Flame” notices in Chinese and English should be posted prominently around the
construction site.
Land Contamination
· Stockpiling site(s) should be lined with
impermeable sheeting and bunded. Stockpiles should be properly covered by
impermeable sheeting to reduce dust emission during dry season or contaminated
run-off during rainy season. Watering should be avoided on stockpiles of soil
to minimise runoff.
Ecology
· Properly erect and maintain 2m high solid barriers for protecting
Siu Hang San Tsuen Stream.
Permit/ Licences
· To display valid Permit or Licences at the site entrances.