Embed Size (px)
Citation preview
PWP Item No. 4331DS
Outlying Islands Sewerage Stage 2 – South Lantau Sewerage Works
Environmental Impact Assessment Report
178711/B&V/0029/Draft H
July 2014 25 B&V / ERM
ANNEX 8B
Construction Noise Impact Assessment
Annex 8B-1 : Preliminary Construction Programme
7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3Daytime PeriodPackage A
1 Submarine Outfall Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y2 Sewage Treatment Works Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y3 Sewage Pumping Station - Pui O Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y4 Trunk Sewers/Rising Mains Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y5 Village Sewers - Pui O Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
Package B6 Sewage Pumping Station - San Shek Wan Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y7 Sewage Pumping Station - Cheung Sha Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y8 Sewage Pumping Station - Cheung Fu Street Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y9 Trunk Sewers/Rising Mains Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
10 Village Sewers - Ham Tin Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y11 Village Sewers - San Shek Wan Y Y Y Y Y Y Y Y Y12 Village Sewers - Cheung Sha Upper Village Y Y Y Y Y Y Y Y Y Y Y Y13 Village Sewers - Cheung Sha Lower Village Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y14 Village Sewers - Cheung Fu Steet Region Y Y Y Y Y Y Y Y
Package C15 Sewage Pumping Station - Tong Fuk Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y16 Sewage Pumping Station - Shui Hau Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y17 Trunk Sewers/Rising Mains Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y18 Village Sewers - Tong Fuk Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y19 Village Sewers - Shui Hau Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
Note:Construction activities are described as:[I] Village sewer[II] Trunk sewer/rising main[III] SPS[IV] STW[V] Submarine outfallInterfacing between village sewerage [I] and trunk sewerage [II] could be avoided by proper programming. Interfacing for construction of the SPS [III], STW [IV]/submarine outfall [V] and the respective trunk sewers/rising mains [II] cannot be avoidedWhere applicable, cumulative impact is calculated for interfacing of construction activities [II] and [III], or [II], [IV] and [V].
2020 2021 2022 2023 2024No. Activity Description 2017 2018 2019
Annex 8B-1 Construction Programme_20160812.xlsx
Agreement No. CE 55/2009 (DS)
Outlying Islands Sewerage Stage 2 - South Lantau Sewerage Works - Investigation
Annex 8B-2a : Construction Plant Inventory (Without Mitigation)
No. Activities Plant TM Ref. / Other
Ref. [1]
No. of
PME
On-
time %
Unit
SWL,
dB(A)
SWL,
dB(A)
Total SWL,
dB(A)[2]
Daytime Period
I) Village Sewers
a) Sawcutting pavement Concrete saw CNP 203 1 70% 115 113 113
b) Breaking up of pavement Hand-held breaker CNP 024 1 70% 108 106 107
Generator, super silenced,
70dB(A) at 7m
CNP 103 1 70% 95 93
c) Excavation Mini excavator EPD/PME/13 1 70% 94 92 92
(only if works area is accessible)
d) Pipe laying Lorry, with crane/grab, 5.5
tonne < gross vehicle weight ≦
38 tonne
EPD/PME/36 1 70% 105 103 103
(only if works area is accessible)
e) Backfilling Lorry, with crane/grab, 5.5
tonne < gross vehicle weight ≦
38 tonne
EPD/PME/36 1 70% 105 103 106
(only if works area is accessible)
Vibrator compactor CNP 050 1 70% 105 103
f) Reinstatement (concrete) Concrete lorry mixer CNP 044 1 70% 109 107 108
(only if works area is accessible)
Elecrtric vibratory poker CNP 173 1 70% 94 92
Generator, super silenced,
70dB(A) at 7m
CNP 103 1 70% 95 93
Notes:
[1]
[2] The figures are rounded-up to a whole number.
BS - British Standard BS 5228:2009, Part 1 Noise and Vibration Control on Construction and Open Sites
Other Ref. - SWLs refer to other PME documented by the Noise Control Authority (EPD/PME/no.)
(http://www.epd.gov.hk/epd/english/application_for_licences/guidance/files/OtherSWLe.pdf )
0115164_Construction noise_v7_unmit.xlsx Page 1 of 6
Agreement No. CE 55/2009 (DS)
Outlying Islands Sewerage Stage 2 - South Lantau Sewerage Works - Investigation
Annex 8B-2b : Construction Plant Inventory (Without Mitigation)
No. Activities Plant TM Ref. /
Other Ref. [1]
No. of
PME
On-
time %
Remarks Unit
SWL,
dB(A)
SWL,
dB(A)
Total SWL,
dB(A)[2]
Daytime Period
I) Village Sewers (Works area is NOT accessible by large PME)
a) Sawcutting pavement Concrete saw CNP 203 1 70% 115 113 113
b) Breaking up of pavement Hand-held breaker CNP 024 1 70% 108 106 107
Generator, super silenced,
70dB(A) at 7m
CNP 103 1 70% 95 93
c) Excavation Mini excavator EPD/PME/13 1 70% Manual 0 0 0
(only if works area is accessible)
d) Pipe laying Lorry, with crane/grab, 5.5
tonne < gross vehicle weight ≦
38 tonne
EPD/PME/36 1 70% Manual 0 0 0
(only if works area is accessible)
e) Backfilling Lorry, with crane/grab, 5.5
tonne < gross vehicle weight ≦
38 tonne
EPD/PME/36 1 70% Manual 0 0 103
(only if works area is accessible)
Vibrator compactor CNP 050 1 70% 105 103
f) Reinstatement (concrete) Concrete lorry mixer CNP 044 1 70% Manual 0 0 96
(only if works area is accessible)
Elecrtric vibratory poker CNP 173 1 70% 94 92
Generator, super silenced,
70dB(A) at 7m
CNP 103 1 70% 95 93
Notes:
[1]
[2] The figures are rounded-up to a whole number.
BS - British Standard BS 5228:2009, Part 1 Noise and Vibration Control on Construction and Open Sites
Other Ref. - SWLs refer to other PME documented by the Noise Control Authority (EPD/PME/no.)
(http://www.epd.gov.hk/epd/english/application_for_licences/guidance/files/OtherSWLe.pdf )
0115164_Construction noise_v7_unmit.xlsx Page 2 of 6
Agreement No. CE 55/2009 (DS)
Outlying Islands Sewerage Stage 2 - South Lantau Sewerage Works - Investigation
Annex 8B-2c : Construction Plant Inventory (Without Mitigation)
No. Activities Plant TM Ref. / Other
Ref. [1]
No. of
PME
On-
time %
Unit
SWL,
dB(A)
SWL,
dB(A)
Total SWL,
dB(A)[2]
Daytime Period
II) Trunk Sewers/ Rising Mains
a) Sawcutting pavement Concrete saw CNP 203 1 70% 115 113 113
b) Breaking up of pavement Hydraulic breaker CNP 028 1 70% 122 120 120
c) Excavation / Shoring Excavator CNP 081 1 70% 112 110 112
Dump truck EPD/PME/38 1 70% 105 103
Sheet piling machine BS D4 13 1 70% 106 104
d) Pipe laying Lorry, with crane/grab, 5.5
tonne < gross vehicle weight ≦
38 tonne
EPD/PME/36 1 70% 105 103 103
e) Backfilling Lorry, with crane/grab, 5.5
tonne < gross vehicle weight ≦
38 tonne
EPD/PME/36 1 70% 105 103 107
Vibratory compactor CNP 050 1 70% 105 103
Hydraulic extractor CNP 163 1 70% 90 88
f) Reinstatement (concrete) Concrete lorry mixer CNP 044 1 70% 109 107 108
Elecrtric vibratory poker CNP 173 1 70% 94 92
Generator, super silenced,
70dB(A) at 7m
CNP 103 1 70% 95 93
g) Reinstatement (asphalt) Asphalt paver CNP 044 1 70% 109 107 111
Dump truck EPD/PME/38 1 50% 105 102
Road roller CNP 185 1 100% 108 108
h) Painting of road marking Pain line marker CNP 161 1 100% 90 90 90
Notes:
[1]
[2] The figures are rounded-up to a whole number.
BS - British Standard BS 5228:2009, Part 1 Noise and Vibration Control on Construction and Open Sites
Other Ref. - SWLs refer to other PME documented by the Noise Control Authority (EPD/PME/no.)
(http://www.epd.gov.hk/epd/english/application_for_licences/guidance/files/OtherSWLe.pdf )
Page 3 of 6
Agreement No. CE 55/2009 (DS)
Outlying Islands Sewerage Stage 2 - South Lantau Sewerage Works - Investigation
Annex 8B-2d : Construction Plant Inventory (Without Mitigation)
No. Activities Plant TM Ref. /
Other Ref. [1]
No. of
PME
On-
time %
Unit
SWL,
dB(A)
SWL,
dB(A)
Total SWL,
dB(A)[2]
Daytime Period
III) Construction of Sewage Pumping Station
Max SWL for Construction of Sewage Pumping Station, dB(A) = 114
a) Ground investigation Drill rig, rotary type (diesel) EPD/PME/12 1 70% 110 108 110
Grout Pump EPD/PME/15 1 70% 105 103
b) Site Clearance Excavator CNP 030 1 70% 115 113 114
Dump truck EPD/PME/38 1 70% 105 103
c) Site formation Excavation / Shoring Excavator CNP 081 1 70% 112 110 113
Dump truck EPD/PME/38 1 50% 105 102
Power rammer CNP 169 1 50% 108 105
Sheet piling machine BS D4 13 1 70% 106 104
d) Construction of sub-structure Mobile crane CNP 048 1 70% 112 110 112
Concrete lorry mixer CNP 044 1 70% 109 107
Electric vibratory poker CNP 173 1 70% 94 92
Generator, super silenced,
70dB(A) at 7m
CNP 103 1 70% 95 93
Water pump CNP 281 1 100% 88 88
e) Backfilling Lorry, with crane/grab, 5.5
tonne < gross vehicle weight ≦
38 tonne
EPD/PME/36 1 70% 105 103 107
(to be used at roadside)
Power rammer CNP 169 1 50% 108 105
Hydraulic extractor CNP 163 1 70% 90 88
f) Construction of superstructure Mobile crane CNP 048 1 70% 112 110 112
Concrete lorry mixer CNP 044 1 70% 109 107
Electric vibratory poker CNP 173 1 70% 94 92
Generator, super silenced,
70dB(A) at 7m
CNP 103 1 70% 95 93
g) E&M installations Mobile crane CNP 048 1 70% 112 110 111
(to be used at roadside) Lorry, 5.5 tonne < gross vehicle
weight ≦38 tonne
EPD/PME/33 1 70% 105 103
h) Architectural and landscaping work Mobile crane CNP 048 1 70% 112 110 111
(to be used at roadside) Lorry, 5.5 tonne < gross vehicle
weight ≦38 tonne
EPD/PME/33 1 70% 105 103
Notes:
[1]
[2] The figures are rounded-up to a whole number.
BS - British Standard BS 5228:2009, Part 1 Noise and Vibration Control on Construction and Open Sites
Other Ref. - SWLs refer to other PME documented by the Noise Control Authority (EPD/PME/no.)
(http://www.epd.gov.hk/epd/english/application_for_licences/guidance/files/OtherSWLe.pdf )
Page 4 of 6
Agreement No. CE 55/2009 (DS)
Outlying Islands Sewerage Stage 2 - South Lantau Sewerage Works - Investigation
Annex 8B-2e : Construction Plant Inventory (Without Mitigation)
No. Activities Plant TM Ref. /
Other Ref. [1]
No. of
PME
On-
time %
Unit
SWL,
dB(A)
SWL,
dB(A)
Total SWL,
dB(A)[2]
Daytime Period
IV) Construction of Sewage Treatment Works
Max SWL for Construction of Sewage Treatment Works, dB(A) = 120
a) Ground investigation Drill rig, rotary type (diesel) EPD/PME/12 1 100% 110 110 111
Grout Pump EPD/PME/15 1 70% 105 103
b) Breaking up of pavement Hydraulic breaker CNP 028 1 70% 122 120 120
c) Site Clearance Bulldozer CNP 030 1 100% 115 115 115
Dump truck EPD/PME/38 1 100% 105 105
d) Site formation Excavation / Shoring Excavator CNP 081 1 100% 112 112 114
Dump truck EPD/PME/38 1 100% 105 105
Power rammer CNP 169 1 70% 108 106
Sheet piling machine BS D4 13 1 100% 106 106
e) Construction of sub-structure Mobile crane CNP 048 1 100% 112 112 114
Concrete lorry mixer CNP 044 1 100% 109 109
Electric vibratory poker CNP 173 1 70% 94 92
Generator, super silenced,
70dB(A) at 7m
CNP 103 1 70% 95 93
Water pump CNP 281 1 100% 88 88
f) Backfilling Lorry, with crane/grab, 5.5
tonne < gross vehicle weight ≦
38 tonne
EPD/PME/36 1 100% 105 105 110
Power rammer CNP 169 1 100% 108 108
Hydraulic extractor CNP 163 1 100% 90 90
g) Construction of superstructure Mobile crane CNP 048 1 100% 112 112 114
Concrete lorry mixer CNP 044 1 100% 109 109
Electric vibratory poker CNP 173 1 70% 94 92
Generator, super silenced,
70dB(A) at 7m
CNP 103 1 70% 95 93
h) E&M installations Mobile crane CNP 048 1 100% 112 112 113
Lorry, 5.5 tonne < gross vehicle
weight ≦38 tonne
EPD/PME/33 1 100% 105 105
i) Architectural and landscaping work Mobile crane CNP 048 1 100% 112 112 113
Lorry, 5.5 tonne < gross vehicle
weight ≦38 tonne
EPD/PME/33 1 100% 105 105
Notes:
[1]
[2] The figures are rounded-up to a whole number.
BS - British Standard BS 5228:2009, Part 1 Noise and Vibration Control on Construction and Open Sites
Other Ref. - SWLs refer to other PME documented by the Noise Control Authority (EPD/PME/no.)
(http://www.epd.gov.hk/epd/english/application_for_licences/guidance/files/OtherSWLe.pdf )
Page 5 of 6
Agreement No. CE 55/2009 (DS)
Outlying Islands Sewerage Stage 2 - South Lantau Sewerage Works - Investigation
Annex 8B-2f : Construction Plant Inventory (Without Mitigation)
No. Activities Plant TM Ref. / Other
Ref. [1]
No. of
PME
On-
time %
Remarks Unit
SWL,
dB(A)
SWL,
dB(A)
Total SWL,
dB(A)[2]
Daytime Period
V) Submarine Outfall
Total SWL for Submarine Outfall (Land based works), dB(A) = 111
Total SWL for Submarine Outfall (Marine based works), dB(A) = 119
a) Ground investigation (Land based) Drill rig, rotary type (diesel) EPD/PME/12 1 100% 110 110 111
Grout Pump EPD/PME/15 1 70% 105 103
b) Ground investigation (Marine based) Derrick barge CNP 061 1 100% 118 118 119
Drill rig, rotary type (diesel) EPD/PME/12 1 100% 110 110
Grout Pump EPD/PME/15 1 70% 105 103
c) Horizontal Directional Drilling Diesel rock drill CNP 181 1 100% underground 0 0 0
(underground) Generator, silenced, 75dB(A) at
7m
CNP 102 1 100% underground 0 0
Electric winch CNP 262 1 100% underground 0 0
d) Marine dredging (Marine based) Derrick barge CNP 061 1 100% 118 118 119
Grab dredger CNP 063 1 100% 112 112
e) Diffuser installation (Marine based) Derrick barge CNP 061 1 100% 118 118 119
Concrete mixer CNP 046 1 100% 96 96
Concrete pump CNP 047 1 100% 109 109
Notes:
[1]
[2] The figures are rounded-up to a whole number.
BS - British Standard BS 5228:2009, Part 1 Noise and Vibration Control on Construction and Open Sites
Other Ref. - SWLs refer to other PME documented by the Noise Control Authority (EPD/PME/no.)
(http://www.epd.gov.hk/epd/english/application_for_licences/guidance/files/OtherSWLe.pdf )
Page 6 of 6
Annex 8B-3a : Construction Noise Assessment - Predicted Noise Levels from Construction of Village Sewer (Without Mitigation)
Predicted CNL, dB(A)[4][5]
NSR Location EIAO-TM
Noise
Criteria
No. Activity Description Sawcutting
pavement
Breaking
up of
pavement
Excavation Pipe
laying
Backfilling Reinstatement
(concrete)
Maximum
No. of
Workfront
Distance Corr. for
distance
Corr. for
screening[6]
Corr. for faç
ade
Sawcutting
pavement
Breaking up
of
pavement
Excavation Pipe
laying
Backfilling Reinstatement
(concrete)
dB(A)[1] a) b) c) d) e) f) m[2] dB(A)[3][4] dB(A) dB(A) a) b) c) d) e) f)
N01a Shui Hau Village 75 13 Village Sewers - Shui Hau 113 107 92 103 106 108 3 2 -14 0 3 102 96 81 92 95 97
10 -28 -10 3 78 72 57 68 71 73
28 -37 0 3 80 73 59 70 73 74
Total CNL 102 96 81 92 95 97
N01b Shui Hau Village 75 13 Village Sewers - Shui Hau 113 107 92 103 106 108 3 8 -26 0 3 90 84 69 80 83 85
14 -31 -10 3 76 69 55 66 69 70
32 -38 0 3 78 72 57 68 71 73
Total CNL 91 84 70 81 84 85
N01c Shui Hau Village 75 13 Village Sewers - Shui Hau 113 107 92 103 106 108 3 30 -38 0 3 79 72 58 69 72 73
56 -43 0 3 74 67 53 64 67 68
84 -46 0 3 70 63 49 60 63 64
Total CNL 80 74 59 70 73 75
N02 Tong Fuk Centre 75 12 Village Sewers - Tong Fuk 113 107 92 103 106 108 n/a n/a -- 0 3 -- -- -- -- -- --
N03a Tong Fuk Village 75 12 Village Sewers - Tong Fuk 113 107 92 103 106 108 5 2 -14 0 3 102 96 81 92 95 97
28 -37 0 3 80 73 59 70 73 74
38 -40 0 3 77 70 56 67 70 71
68 -45 0 3 72 65 51 62 65 66
86 -47 0 3 70 63 49 60 63 64
Total CNL 102 96 81 92 95 97
N03b Tong Fuk Village 75 12 Village Sewers - Tong Fuk 113 107 92 103 106 108 5 5 -22 0 3 94 88 73 84 88 89
30 -38 0 3 79 72 58 69 72 73
36 -39 0 3 77 71 56 67 70 72
38 -40 0 3 77 70 56 67 70 71
80 -46 0 3 70 64 49 60 63 65
Total CNL 95 88 74 85 88 89
N05a 75 11 113 107 92 103 106 108 2 14 -31 0 3 86 79 65 76 79 80
34 -39 0 3 78 71 57 68 71 72
Total CNL 86 79 65 76 79 81
N05b 75 11 113 107 92 103 106 108 2 12 -30 0 3 87 80 66 77 80 81
28 -37 -10 3 70 63 49 60 63 64
87 80 66 77 80 81
N06 WSD Quarter 75 10 113 107 92 103 106 108 2 32 -38 0 3 78 72 57 68 71 73
62 -44 0 3 73 66 52 63 66 67
Total CNL 79 73 58 69 72 74
N07 75 10 113 107 92 103 106 108 3 32 -38 0 3 78 72 57 68 71 73
14 -31 0 3 86 79 65 76 79 80
25 -36 0 3 81 74 60 71 74 75
Total CNL 87 81 66 77 80 82
N08 Cheung Sha Ha Tsuen 75 10 113 107 92 103 106 108 3 8 -26 0 3 90 84 69 80 83 85
20 -34 -10 3 72 66 51 62 65 67
28 -37 0 3 80 73 59 70 73 74
Total CNL 91 84 70 81 84 85
N09 Cheung Sha Sheung Tsuen 75 9 113 107 92 103 106 108 3 14 -31 -10 3 76 69 55 66 69 70
16 -32 0 3 84 78 63 74 77 79
42 -40 0 3 76 69 55 66 69 70
Total CNL 85 79 64 75 78 80
N10 Cheung Sha Sheung Tsuen 75 9 113 107 92 103 106 108 3 10 -28 0 3 88 82 67 78 81 83
28 -37 0 3 80 73 59 70 73 74
56 -43 0 3 74 67 53 64 67 68
Total CNL 89 82 68 79 82 83
N11a YMCA Youth Camp 75 5 113 107 92 103 106 108 2 114 -49 0 3 67 61 46 57 60 62
130 -50 0 3 66 59 45 56 59 60
Total CNL 70 63 49 60 63 64
N11b San Shek Wan 75 5 113 107 92 103 106 108 2 5 -22 0 3 94 88 73 84 88 89
24 -36 0 3 81 74 60 71 74 75
Total CNL 95 88 74 85 88 89
SWL, dB(A)[4]
Government Holiday
Bungalows
Residences at Cheung Fu
Street
Residences at Cheung Fu
Street
Village Sewers - Cheng Fu
Street Region
Village Sewers - Cheng Fu
Street Region
Village Sewers - Cheung Sha
Lower Village
Village Sewers - Cheung Sha
Lower Village
Village Sewers - Cheung Sha
Lower Village
Village Sewers - Cheung Sha
Upper Village
Village Sewers - Cheung Sha
Upper Village
Village Sewers - San Shek
Wan
Village Sewers - San Shek
Wan
Page 1 of 2
Predicted CNL, dB(A)[4][5]
NSR Location EIAO-TM
Noise
Criteria
No. Activity Description Sawcutting
pavement
Breaking
up of
pavement
Excavation Pipe
laying
Backfilling Reinstatement
(concrete)
Maximum
No. of
Workfront
Distance Corr. for
distance
Corr. for
screening[6]
Corr. for faç
ade
Sawcutting
pavement
Breaking up
of
pavement
Excavation Pipe
laying
Backfilling Reinstatement
(concrete)
dB(A)[1] a) b) c) d) e) f) m[2] dB(A)[3][4] dB(A) dB(A) a) b) c) d) e) f)
SWL, dB(A)[4]
N11c San Shek Wan 75 5 113 107 92 103 106 108 2 10 -28 0 3 88 82 67 78 81 83
23 -35 0 3 81 74 60 71 74 76
89 82 68 79 82 84
N12a Lo Uk Tsuen 75 3 Village Sewers - Pui O 113 107 92 103 106 108 4 20 -34 0 3 82 76 61 72 75 77
28 -37 0 3 80 73 59 70 73 74
36 -39 -10 3 67 61 46 57 60 62
44 -41 0 3 76 69 55 66 69 70
Total CNL 85 78 64 75 78 79
N12b Lo Uk Tsuen 75 3 Village Sewers - Pui O 113 107 92 103 106 108 4 10 -28 0 3 88 82 67 78 81 83
12 -30 0 3 87 80 66 77 80 81
18 -33 0 3 83 77 62 73 76 78
24 -36 -10 3 71 64 50 61 64 65
Total CNL 92 85 71 82 85 86
N12c Lo Uk Tsuen 75 3 Village Sewers - Pui O 113 107 92 103 106 108 4 12 -30 0 3 87 80 66 77 80 81
20 -34 -10 3 72 66 51 62 65 67
30 -38 -10 3 69 62 48 59 62 63
44 -41 -10 3 66 59 45 56 59 60
Total CNL 87 80 66 77 80 81
N13 Pui O San Wai Tsuen 75 3 Village Sewers - Pui O 113 107 92 103 106 108 3 12 -30 0 3 87 80 66 77 80 81
22 -35 0 3 82 75 61 72 75 76
38 -40 0 3 77 70 56 67 70 71
Total CNL 88 82 67 78 81 83
N14 75 4 Village Sewers - Ham Tin 113 107 92 103 106 108 3 12 -30 0 3 87 80 66 77 80 81
40 -40 0 3 76 70 55 66 69 71
64 -44 0 3 72 66 51 62 65 67
Total CNL 87 81 66 77 80 82
N15a Pui O Lo Wai Tsuen 75 3 Village Sewers - Pui O 113 107 92 103 106 108 3 5 -22 0 3 94 88 73 84 88 89
55 -43 0 3 74 67 53 64 67 68
65 -44 0 3 72 65 51 62 65 67
Total CNL 95 88 74 85 88 89
N15b Pui O Lo Wai Tsuen 75 3 Village Sewers - Pui O 113 107 92 103 106 108 3 5 -22 0 3 94 88 73 84 88 89
25 -36 0 3 81 74 60 71 74 75
32 -38 0 3 78 72 57 68 71 73
Total CNL 95 88 74 85 88 89
N16a Ham Tin San Tsuen 75 4 Village Sewers - Ham Tin 113 107 92 103 106 108 4 56 -43 0 3 74 67 53 64 67 68
65 -44 0 3 72 65 51 62 65 67
76 -46 0 3 71 64 50 61 64 65
94 -47 0 3 69 62 48 59 62 63
Total CNL 78 71 57 68 71 72
N16b Ham Tin San Tsuen 75 4 Village Sewers - Ham Tin 113 107 92 103 106 108 4 12 -30 0 3 87 80 66 77 80 81
28 -37 -10 3 70 63 49 60 63 64
58 -43 -10 3 63 56 42 53 56 58
15 -32 -10 3 75 68 54 65 68 69
Total CNL 87 80 66 77 80 82
N17 Bui O Public School 70/65 3 Village Sewers - Pui O 113 107 92 103 106 108 3 48 -42 0 3 75 68 54 65 68 69
70 -45 0 3 72 65 51 62 65 66
70 -45 0 3 72 65 51 62 65 66
Total CNL 78 71 57 68 71 72
Notes:
[1] 70/65 Noise criteria during normal school days / examination period
[2] Distance more than 300m from the works area were not assessed
[3] Distance Correction for PMEs = 10*log(2*PI*r2)
[4] The figures are rounded-up to a whole number.
[5] 76 Predicted Noise Level exceeded the corresponding EIAO-TM noise criteria.
[6] A negative correction of -10dB(A) is applied to the NSR when the whole construction workfront will not be visible when viewed from the assessment point.
Village Sewers - San Shek
Wan
South Lantau Community
Centre
Page 2 of 2
Annex 8B-3b : Construction Noise Assessment - Predicted Noise Levels from Construction of Village Sewer (Without Mitigation)
Predicted CNL, dB(A)[4][5]
NSR Location EIAO-TM
Noise
Criteria
No. Activity Description Sawcutting
pavement
Breaking
up of
pavement
Excavation Pipe
laying
Backfilling Reinstatement
(concrete)
Maximum
No. of
Workfront
Distance Corr. for
distance
Corr. for
screening[6]
Corr. for fa
çade
Sawcutting
pavement
Breaking up
of
pavement
Excavation Pipe
laying
Backfilling Reinstatement
(concrete)
dB(A)[1] a) b) c) d) e) f) m[2] dB(A)[3][4] dB(A) dB(A) a) b) c) d) e) f)
N01a Shui Hau Village 75 13 Village Sewers - Shui Hau 113 107 0 0 103 96 3 2 -14 0 3 102 96 -- -- 92 85
10 -28 -10 3 78 72 -- -- 68 61
28 -37 0 3 80 73 -- -- 70 62
Total CNL 102 96 -- -- 92 85
N01b Shui Hau Village 75 13 Village Sewers - Shui Hau 113 107 0 0 103 96 3 8 -26 0 3 90 84 -- -- 80 73
14 -31 -10 3 76 69 -- -- 66 58
32 -38 0 3 78 72 -- -- 68 61
Total CNL 91 84 -- -- 81 73
N01c Shui Hau Village 75 13 Village Sewers - Shui Hau 113 107 0 0 103 96 3 30 -38 0 3 79 72 -- -- 69 61
56 -43 0 3 74 67 -- -- 64 56
84 -46 0 3 70 63 -- -- 60 53
Total CNL 80 74 -- -- 70 63
N02 Tong Fuk Centre 75 12 Village Sewers - Tong Fuk 113 107 0 0 103 96 n/a n/a -- 3 -- -- -- -- -- --
N03a Tong Fuk Village 75 12 Village Sewers - Tong Fuk 113 107 0 0 103 96 5 2 -14 0 3 102 96 -- -- 92 85
28 -37 0 3 80 73 -- -- 70 62
38 -40 0 3 77 70 -- -- 67 59
68 -45 0 3 72 65 -- -- 62 54
86 -47 0 3 70 63 -- -- 60 52
Total CNL 102 96 -- -- 92 85
N03b Tong Fuk Village 75 12 Village Sewers - Tong Fuk 113 107 0 0 103 96 5 5 -22 0 3 94 88 -- -- 84 77
30 -38 0 3 79 72 -- -- 69 61
36 -39 0 3 77 71 -- -- 67 60
38 -40 0 3 77 70 -- -- 67 59
80 -46 0 3 70 64 -- -- 60 53
Total CNL 95 88 -- -- 85 77
N05a 75 11 113 107 0 0 103 96 2 14 -31 0 3 86 79 -- -- 76 68
34 -39 0 3 78 71 -- -- 68 60
Total CNL 86 79 -- -- 76 69
N05b 75 11 113 107 0 0 103 96 2 12 -30 0 3 87 80 -- -- 77 69
28 -37 -10 3 70 63 -- -- 60 52
87 80 -- -- 77 70
N06 WSD Quarter 75 10 113 107 0 0 103 96 2 32 -38 0 3 78 72 -- -- 68 61
62 -44 0 3 73 66 -- -- 63 55
Total CNL 79 73 -- -- 69 62
N07 75 10 113 107 0 0 103 96 3 32 -38 0 3 78 72 -- -- 68 61
14 -31 0 3 86 79 -- -- 76 68
25 -36 0 3 81 74 -- -- 71 63
Total CNL 87 81 -- -- 77 70
N08 Cheung Sha Ha Tsuen 75 10 113 107 0 0 103 96 3 8 -26 0 3 90 84 -- -- 80 73
20 -34 -10 3 72 66 -- -- 62 55
28 -37 0 3 80 73 -- -- 70 62
Total CNL 91 84 -- -- 81 73
N09 Cheung Sha Sheung Tsuen 75 9 113 107 0 0 103 96 3 14 -31 -10 3 76 69 -- -- 66 58
16 -32 0 3 84 78 -- -- 74 67
42 -40 0 3 76 69 -- -- 66 59
Total CNL 85 79 -- -- 75 68
N10 Cheung Sha Sheung Tsuen 75 9 113 107 0 0 103 96 3 10 -28 0 3 88 82 -- -- 78 71
28 -37 0 3 80 73 -- -- 70 62
56 -43 0 3 74 67 -- -- 64 56
Total CNL 89 82 -- -- 79 72
N11a YMCA Youth Camp 75 5 113 107 0 0 103 96 2 114 -49 0 3 67 61 -- -- 57 50
130 -50 0 3 66 59 -- -- 56 49
Total CNL 70 63 -- -- 60 52
N11b San Shek Wan 75 5 113 107 0 0 103 96 2 5 -22 0 3 94 88 -- -- 84 77
24 -36 0 3 81 74 -- -- 71 63
Total CNL 95 88 -- -- 85 77
Village Sewers - San Shek
Wan
Village Sewers - San Shek
Wan
Village Sewers - Cheung Sha
Lower Village
Government Holiday
Bungalows
Village Sewers - Cheung Sha
Lower Village
Village Sewers - Cheung Sha
Lower Village
Village Sewers - Cheung Sha
Upper Village
Village Sewers - Cheung Sha
Upper Village
SWL, dB(A)[4]
Residences at Cheung Fu
Street
Village Sewers - Cheng Fu
Street Region
Residences at Cheung Fu
Street
Village Sewers - Cheng Fu
Street Region
Page 1 of 2
Predicted CNL, dB(A)[4][5]
NSR Location EIAO-TM
Noise
Criteria
No. Activity Description Sawcutting
pavement
Breaking
up of
pavement
Excavation Pipe
laying
Backfilling Reinstatement
(concrete)
Maximum
No. of
Workfront
Distance Corr. for
distance
Corr. for
screening[6]
Corr. for fa
çade
Sawcutting
pavement
Breaking up
of
pavement
Excavation Pipe
laying
Backfilling Reinstatement
(concrete)
dB(A)[1] a) b) c) d) e) f) m[2] dB(A)[3][4] dB(A) dB(A) a) b) c) d) e) f)
SWL, dB(A)[4]
N11c San Shek Wan 75 5 113 107 0 0 103 96 2 10 -28 0 3 88 82 -- -- 78 71
23 -35 0 3 81 74 -- -- 71 64
89 82 -- -- 79 72
N12a Lo Uk Tsuen 75 3 Village Sewers - Pui O 113 107 0 0 103 96 4 20 -34 0 3 82 76 -- -- 72 65
28 -37 0 3 80 73 -- -- 70 62
36 -39 -10 3 67 61 -- -- 57 50
44 -41 0 3 76 69 -- -- 66 58
Total CNL 85 78 -- -- 75 67
N12b Lo Uk Tsuen 75 3 Village Sewers - Pui O 113 107 0 0 103 96 4 10 -28 0 3 88 82 -- -- 78 71
12 -30 0 3 87 80 -- -- 77 69
18 -33 0 3 83 77 -- -- 73 66
24 -36 -10 3 71 64 -- -- 61 53
Total CNL 92 85 -- -- 82 74
N12c Lo Uk Tsuen 75 3 Village Sewers - Pui O 113 107 0 0 103 96 4 12 -30 0 3 87 80 -- -- 77 69
20 -34 -10 3 72 66 -- -- 62 55
30 -38 -10 3 69 62 -- -- 59 51
44 -41 -10 3 66 59 -- -- 56 48
Total CNL 87 80 -- -- 77 70
N13 Pui O San Wai Tsuen 75 3 Village Sewers - Pui O 113 107 0 0 103 96 3 12 -30 0 3 87 80 -- -- 77 69
22 -35 0 3 82 75 -- -- 72 64
38 -40 0 3 77 70 -- -- 67 59
Total CNL 88 82 -- -- 78 71
N14 75 4 Village Sewers - Ham Tin 113 107 0 0 103 96 3 12 -30 0 3 87 80 -- -- 77 69
40 -40 0 3 76 70 -- -- 66 59
64 -44 0 3 72 66 -- -- 62 55
Total CNL 87 81 -- -- 77 70
N15a Pui O Lo Wai Tsuen 75 3 Village Sewers - Pui O 113 107 0 0 103 96 3 5 -22 0 3 94 88 -- -- 84 77
55 -43 0 3 74 67 -- -- 64 56
65 -44 0 3 72 65 -- -- 62 55
Total CNL 95 88 -- -- 85 77
N15b Pui O Lo Wai Tsuen 75 3 Village Sewers - Pui O 113 107 0 0 103 96 3 5 -22 0 3 94 88 -- -- 84 77
25 -36 0 3 81 74 -- -- 71 63
32 -38 0 3 78 72 -- -- 68 61
Total CNL 95 88 -- -- 85 77
N16a Ham Tin San Tsuen 75 4 Village Sewers - Ham Tin 113 107 0 0 103 96 4 56 -43 0 3 74 67 -- -- 64 56
65 -44 0 3 72 65 -- -- 62 55
76 -46 0 3 71 64 -- -- 61 53
94 -47 0 3 69 62 -- -- 59 52
Total CNL 78 71 -- -- 68 60
N16b Ham Tin San Tsuen 75 4 Village Sewers - Ham Tin 113 107 0 0 103 96 4 12 -30 0 3 87 80 -- -- 77 69
28 -37 -10 3 70 63 -- -- 60 52
58 -43 -10 3 63 56 -- -- 53 46
15 -32 -10 3 75 68 -- -- 65 57
Total CNL 87 80 -- -- 77 70
N17 Bui O Public School 70/65 3 Village Sewers - Pui O 113 107 0 0 103 96 3 48 -42 0 3 75 68 -- -- 65 57
70 -45 0 3 72 65 -- -- 62 54
70 -45 0 3 72 65 -- -- 62 54
Total CNL 78 71 -- -- 68 60
Notes:
[1] 70/65 Noise criteria during normal school days / examination period
[2] Distance more than 300m from the works area were not assessed
[3] Distance Correction for PMEs = 10*log(2*PI*r2)
[4] The figures are rounded-up to a whole number.
[5] 76 Predicted Noise Level exceeded the corresponding EIAO-TM noise criteria.
[6] A negative correction of -10dB(A) is applied to the NSR when the whole construction workfront will not be visible when viewed from the assessment point.
Village Sewers - San Shek
Wan
South Lantau Community
Centre
Page 2 of 2
Annex 8B-3c : Construction Noise Assessment - Predicted Noise Levels from Construction of Trunk Sewers/Rising Mains (Without Mitigation)
SWL, dB(A)[4]
Activity Description Sawcutting
pavement
Breaking up
of
pavement
Excavation /
Shoring
Pipe
laying
Backfilling Reinstatement
(concrete)
Reinstatement
(asphalt)
Painting of
road
marking
a) b) c) d) e) f) g) h)
Trunk Sewers/Rising Mains 113 120 112 103 107 108 111 90
Predicted CNL, dB(A)[4][5]
NSR Location EIAO-TM
Noise
Criteria
Distance Corr. for
distance
Corr. for
screening
Corr. for
façade
Sawcutting
pavement
Breaking up
of
pavement
Excavation /
Shoring
Pipe
laying
Backfilling Reinstatement
(concrete)
Reinstatement
(asphalt)
Painting of
road
marking
dB(A)[1] m[2] dB(A)[3][4] dB(A) dB(A) a) b) c) d) e) f) g) h)
N01a Shui Hau Village 75 82 -46 - 3 70 77 69 60 63 64 68 47
42 -40 - 3 76 83 75 66 69 70 74 53
8 -26 - 3 90 97 89 80 83 85 88 67
36 -39 - 3 77 84 76 67 70 72 75 54
66 -44 - 3 72 79 71 62 65 66 70 49
106 -48 - 3 68 75 67 58 61 62 66 45
Total CNL 91 98 89 81 84 85 89 67
N01b Shui Hau Village 75 114 -49 - 3 67 74 66 57 60 62 65 44
74 -45 - 3 71 78 70 61 64 65 69 48
36 -39 - 3 77 84 76 67 70 72 75 54
14 -31 - 3 86 93 84 76 79 80 83 62
48 -42 - 3 75 82 73 65 68 69 73 51
75 -45 - 3 71 78 70 61 64 65 69 48
Total CNL 87 94 85 77 80 81 85 63
N01c Shui Hau Village 75 130 -50 - 3 66 73 65 56 59 60 64 43
110 -49 - 3 68 75 66 58 61 62 65 44
90 -47 - 3 69 76 68 59 62 64 67 46
70 -45 - 3 72 79 70 62 65 66 69 48
88 -47 - 3 70 77 68 60 63 64 67 46
114 -49 - 3 67 74 66 57 60 62 65 44
Total CNL 77 84 75 67 70 71 75 53
N02 Tong Fuk Centre 75 92 -47 - 3 69 76 68 59 62 63 67 46
64 -44 - 3 72 79 71 62 65 67 70 49
52 -42 - 3 74 81 73 64 67 68 72 51
64 -44 - 3 72 79 71 62 65 67 70 49
94 -47 - 3 69 76 68 59 62 63 67 46
128 -50 - 3 66 73 65 56 59 61 64 43
Total CNL 79 86 78 69 72 73 77 56
N03a Tong Fuk Village 75 78 -46 - 3 71 78 69 61 64 65 68 47
40 -40 - 3 76 83 75 66 70 71 74 53
42 -40 - 3 76 83 75 66 69 70 74 53
12 -30 - 3 87 94 86 77 80 81 85 63
40 -40 - 3 76 83 75 66 70 71 74 53
78 -46 - 3 71 78 69 61 64 65 68 47
Total CNL 88 95 87 78 81 82 86 65
N03b Tong Fuk Village 75 116 -49 - 3 67 74 66 57 60 61 65 44
85 -47 - 3 70 77 68 60 63 64 68 46
48 -42 - 3 75 82 73 65 68 69 73 51
16 -32 - 3 84 91 83 74 77 79 82 61
28 -37 - 3 80 87 78 70 73 74 77 56
60 -44 - 3 73 80 72 63 66 67 71 49
Total CNL 86 93 85 76 79 81 84 63
N05a 75 100 -48 - 3 68 75 67 58 62 63 66 45
64 -44 - 3 72 79 71 62 65 67 70 49
30 -38 - 3 79 86 78 69 72 73 77 55
40 -40 - 3 76 83 75 66 70 71 74 53
78 -46 - 3 71 78 69 61 64 65 68 47
112 -49 - 3 67 74 66 57 61 62 65 44
Total CNL 82 89 81 72 75 76 80 59
N05b 75 104 -48 - 3 68 75 67 58 61 62 66 45
62 -44 - 3 73 80 71 63 66 67 70 49
35 -39 - 3 78 85 76 68 71 72 75 54
26 -36 - 3 80 87 79 70 73 74 78 57
60 -44 - 3 73 80 72 63 66 67 71 49
90 -47 - 3 69 76 68 59 62 64 67 46
Total CNL 83 90 82 73 76 78 81 60
N06 WSD Quarter 75 106 -48 - 3 68 75 67 58 61 62 66 45
90 -47 - 3 69 76 68 59 62 64 67 46
84 -46 - 3 70 77 69 60 63 64 68 47
90 -47 - 3 69 76 68 59 62 64 67 46
108 -49 - 3 68 75 66 58 61 62 66 44
122 -50 - 3 67 74 65 57 60 61 65 43
Total CNL 76 83 75 66 70 71 74 53
N07 75 68 -45 - 3 72 79 70 62 65 66 70 48
38 -40 - 3 77 84 75 67 70 71 75 53
40 -40 - 3 76 83 75 66 70 71 74 53
70 -45 - 3 72 79 70 62 65 66 69 48
90 -47 - 3 69 76 68 59 62 64 67 46
95 -48 - 3 69 76 68 59 62 63 67 45
Total CNL 81 88 80 71 74 76 79 58
N08 Cheung Sha Ha Tsuen 75 105 -48 - 3 68 75 67 58 61 62 66 45
75 -45 - 3 71 78 70 61 64 65 69 48
52 -42 - 3 74 81 73 64 67 68 72 51
65 -44 - 3 72 79 71 62 65 67 70 49
106 -48 - 3 68 75 67 58 61 62 66 45
142 -51 - 3 65 72 64 55 59 60 63 42
Total CNL 79 86 77 69 72 73 76 55
Residences at Cheung Fu
Street
Residences at Cheung Fu
Street
Government Holiday
Bungalows
Page 1 of 3
Predicted CNL, dB(A)[4][5]
NSR Location EIAO-TM
Noise
Criteria
Distance Corr. for
distance
Corr. for
screening
Corr. for
façade
Sawcutting
pavement
Breaking up
of
pavement
Excavation /
Shoring
Pipe
laying
Backfilling Reinstatement
(concrete)
Reinstatement
(asphalt)
Painting of
road
marking
dB(A)[1] m[2] dB(A)[3][4] dB(A) dB(A) a) b) c) d) e) f) g) h)
N09 Cheung Sha Sheung Tsuen 75 150 -52 - 3 65 72 64 55 58 59 63 41
110 -49 - 3 68 75 66 58 61 62 65 44
70 -45 - 3 72 79 70 62 65 66 69 48
50 -42 - 3 74 81 73 64 68 69 72 51
70 -45 - 3 72 79 70 62 65 66 69 48
106 -48 - 3 68 75 67 58 61 62 66 45
Total CNL 79 86 77 69 72 73 76 55
N10 Cheung Sha Sheung Tsuen 75 110 -49 - 3 68 75 66 58 61 62 65 44
78 -46 - 3 71 78 69 61 64 65 68 47
38 -40 - 3 77 84 75 67 70 71 75 53
10 -28 - 3 88 95 87 78 82 83 86 65
36 -39 - 3 77 84 76 67 70 72 75 54
70 -45 - 3 72 79 70 62 65 66 69 48
Total CNL 89 96 88 79 82 84 87 66
N11a YMCA Youth Camp 75 86 -47 - 3 70 77 68 60 63 64 68 46
48 -42 - 3 75 82 73 65 68 69 73 51
20 -34 - 3 82 89 81 72 76 77 80 59
45 -41 - 3 75 82 74 65 68 70 73 52
74 -45 - 3 71 78 70 61 64 65 69 48
122 -50 - 3 67 74 65 57 60 61 65 43
Total CNL 84 91 83 74 77 79 82 61
N11b San Shek Wan 75 122 -50 0 3 67 74 65 57 60 61 65 43
89 -47 0 3 69 76 68 59 63 64 67 46
55 -43 0 3 74 81 72 64 67 68 71 50
18 -33 0 3 83 90 82 73 76 78 81 60
20 -34 0 3 82 89 81 72 76 77 80 59
52 -42 -10 3 64 71 63 54 57 58 62 41
Total CNL 86 93 85 76 79 81 84 63
N11c San Shek Wan 75 62 -44 0 3 73 80 71 63 66 67 70 49
26 -36 0 3 80 87 79 70 73 74 78 57
30 -38 0 3 79 86 78 69 72 73 77 55
64 -44 0 3 72 79 71 62 65 67 70 49
90 -47 -10 3 59 66 58 49 52 54 57 36
118 -49 -10 3 57 64 56 47 50 51 55 34
Total CNL 83 90 82 73 76 78 81 60
N12a Lo Uk Tsuen 75 130 -50 - 3 66 73 65 56 59 60 64 43
95 -48 - 3 69 76 68 59 62 63 67 45
60 -44 - 3 73 80 72 63 66 67 71 49
44 -41 - 3 76 83 74 66 69 70 73 52
62 -44 - 3 73 80 71 63 66 67 70 49
106 -48 - 3 68 75 67 58 61 62 66 45
Total CNL 80 87 78 70 73 74 77 56
N12b Lo Uk Tsuen 75 113 -49 - 3 67 74 66 57 60 62 65 44
74 -45 - 3 71 78 70 61 64 65 69 48
34 -39 - 3 78 85 76 68 71 72 76 54
10 -28 - 3 88 95 87 78 82 83 86 65
34 -39 - 3 78 85 76 68 71 72 76 54
74 -45 - 3 71 78 70 61 64 65 69 48
Total CNL 89 96 88 79 82 84 87 66
N12c Lo Uk Tsuen 75 64 -44 - 3 72 79 71 62 65 67 70 49
26 -36 - 3 80 87 79 70 73 74 78 57
8 -26 - 3 90 97 89 80 83 85 88 67
36 -39 - 3 77 84 76 67 70 72 75 54
74 -45 - 3 71 78 70 61 64 65 69 48
116 -49 - 3 67 74 66 57 60 61 65 44
Total CNL 91 98 90 81 84 85 89 68
N13 Pui O San Wai Tsuen 75 94 -47 - 3 69 76 68 59 62 63 67 46
58 -43 - 3 73 80 72 63 66 68 71 50
16 -32 - 3 84 91 83 74 77 79 82 61
11 -29 - 3 88 95 86 78 81 82 85 64
48 -42 - 3 75 82 73 65 68 69 73 51
84 -46 - 3 70 77 69 60 63 64 68 47
Total CNL 90 97 88 80 83 84 87 66
N14 75 108 -49 - 3 68 75 66 58 61 62 66 44
68 -45 - 3 72 79 70 62 65 66 70 48
29 -37 - 3 79 86 78 69 72 74 77 56
6 -24 - 3 93 100 92 83 86 87 91 69
34 -39 - 3 78 85 76 68 71 72 76 54
74 -45 - 3 71 78 70 61 64 65 69 48
Total CNL 93 100 92 83 86 88 91 70
N15a Pui O Lo Wai Tsuen 75 115 -49 - 3 67 74 66 57 60 62 65 44
78 -46 - 3 71 78 69 61 64 65 68 47
50 -42 - 3 74 81 73 64 68 69 72 51
15 -32 - 3 85 92 84 75 78 79 83 61
30 -38 - 3 79 86 78 69 72 73 77 55
68 -45 - 3 72 79 70 62 65 66 70 48
Total CNL 87 94 85 77 80 81 84 63
N15b Pui O Lo Wai Tsuen 75 110 -49 - 3 68 75 66 58 61 62 65 44
72 -45 - 3 71 78 70 61 64 66 69 48
35 -39 - 3 78 85 76 68 71 72 75 54
20 -34 - 3 82 89 81 72 76 77 80 59
50 -42 - 3 74 81 73 64 68 69 72 51
84 -46 - 3 70 77 69 60 63 64 68 47
Total CNL 85 92 83 75 78 79 82 61
N16a Ham Tin San Tsuen 75 84 -46 - 3 70 77 69 60 63 64 68 47
46 -41 - 3 75 82 74 65 68 70 73 52
19 -34 - 3 83 90 82 73 76 77 81 59
45 -41 - 3 75 82 74 65 68 70 73 52
South Lantau Community
Centre
Page 2 of 3
Predicted CNL, dB(A)[4][5]
NSR Location EIAO-TM
Noise
Criteria
Distance Corr. for
distance
Corr. for
screening
Corr. for
façade
Sawcutting
pavement
Breaking up
of
pavement
Excavation /
Shoring
Pipe
laying
Backfilling Reinstatement
(concrete)
Reinstatement
(asphalt)
Painting of
road
marking
dB(A)[1] m[2] dB(A)[3][4] dB(A) dB(A) a) b) c) d) e) f) g) h)
80 -46 - 3 70 77 69 60 63 65 68 47
114 -49 - 3 67 74 66 57 60 62 65 44
Total CNL 85 92 83 75 78 79 82 61
N16b Ham Tin San Tsuen 75 25 -36 - 3 81 88 79 71 74 75 78 57
60 -44 - 3 73 80 72 63 66 67 71 49
96 -48 - 3 69 76 67 59 62 63 67 45
74 -45 - 3 71 78 70 61 64 65 69 48
160 -52 - 3 64 71 63 54 57 59 62 41
196 -54 - 3 63 70 61 53 56 57 60 39
Total CNL 82 89 81 72 75 76 80 59
N17 Bui O Public School 70/65 8 -26 - 3 90 97 89 80 83 85 88 67
38 -40 - 3 77 84 75 67 70 71 75 53
77 -46 - 3 71 78 69 61 64 65 69 47
15 -32 - 3 85 92 84 75 78 79 83 61
50 -42 - 3 74 81 73 64 68 69 72 51
84 -46 - 3 70 77 69 60 63 64 68 47
Total CNL 92 99 90 82 85 86 90 68
Notes:
[1] 70/65 Noise criteria during normal school days / examination period
[2] Distance more than 300m from the works area were not assessed
[3] Distance Correction for PMEs = 10*log(2*PI*r2)
[4] The figures are rounded-up to a whole number.
[5] 76 Predicted Noise Level exceeded the corresponding EIAO-TM noise criteria.
Page 3 of 3
No. Activity Description SWL Distance Corr. for
distance
Corr. for
façade
NSR
LocatiodB(A)
[2]m
[2]dB(A)
[3][4] dB(A)
N01a Shui Hau Village 75 18 Sewage Pumping Station - Shui Hau 114 n/a -- 3 --
N01b Shui Hau Village 75 18 Sewage Pumping Station - Shui Hau 114 n/a -- 3 --
N01c Shui Hau Village 75 18 Sewage Pumping Station - Shui Hau 114 85 -47 3 70
N02 Tong Fuk Centre 75 17 Sewage Pumping Station - Tong Fuk 114 n/a -- 3 --
N03a Tong Fuk Village 75 17 Sewage Pumping Station - Tong Fuk 114 53 -42 3 74
N03b Tong Fuk Village 75 17 Sewage Pumping Station - Tong Fuk 114 106 -48 3 68
N05a Residences at Cheung Fu Street 75 16 Sewage Pumping Station - Cheung Fu Street 114 11 -29 3 88
N05b Residences at Cheung Fu Street 75 16 Sewage Pumping Station - Cheung Fu Street 114 184 -53 3 64
N06 WSD Quarter 75 15 Sewage Pumping Station - Cheung Sha 114 273 -57 3 60
N07 Government Holiday Bungalows 75 15 Sewage Pumping Station - Cheung Sha 114 122 -50 3 67
N08 Cheung Sha Ha Tsuen 75 15 Sewage Pumping Station - Cheung Sha 114 33 -38 3 79
N09 Cheung Sha Sheung Tsuen 75 15 Sewage Pumping Station - Cheung Sha 114 209 -54 3 62
N10 Cheung Sha Sheung Tsuen 75 15 Sewage Pumping Station - Cheung Sha 114 n/a -- 3 --
N11a YMCA Youth Camp 75 8 Sewage Pumping Station - San Shek Wan 114 220 -55 3 62
N11b San Shek Wan 75 8 Sewage Pumping Station - San Shek Wan 114 58 -43 3 74
N11c San Shek Wan 75 8 Sewage Pumping Station - San Shek Wan 114 n/a -- 3 --
N12a Lo Uk Tsuen 75 7 Sewage Pumping Station - Pui O 114 n/a -- 3 --
N12b Lo Uk Tsuen 75 7 Sewage Pumping Station - Pui O 114 n/a -- 3 --
N12c Lo Uk Tsuen 75 7 Sewage Pumping Station - Pui O 114 n/a -- 3 --
N13 Pui O San Wai Tsuen 75 7 Sewage Pumping Station - Pui O 114 n/a -- 3 --
N14 South Lantau Community Centre 75 7 Sewage Pumping Station - Pui O 114 240 -56 3 61
N15a Pui O Lo Wai Tsuen 75 7 Sewage Pumping Station - Pui O 114 n/a -- 3 --
N15b Pui O Lo Wai Tsuen 75 7 Sewage Pumping Station - Pui O 114 n/a -- 3 --
N16a Ham Tin San Tsuen 75 7 Sewage Pumping Station - Pui O 114 154 -52 3 65
N16b Ham Tin San Tsuen 75 7 Sewage Pumping Station - Pui O 114 204 -54 3 63
N17 Bui O Public School 70/65 7 Sewage Pumping Station - Pui O 114 n/a -- 3 --
Notes:
[1] 70/65 Noise criteria during normal school days / examination period
[2] Distance more than 300m from the works area were not assessed
[3] Distance Correction for PMEs = 10*log(2*PI*r2)
[4] The figures are rounded-up to a whole number.
[5] Maximum predicted CNL for NSR N05a, please refer to Annex 8B-3e for detailed calculation
[6] 76 Predicted Noise Level exceeded the corresponding EIAO-TM noise criteria.
Annex 8B-3d : Construction Noise Assessment - Predicted Noise Levels from Construction of Sewage Pumping Stations
(Without Mitigation)
Predicted CNL,
dB(A)[4][5][6]
EIAO-TM
Noise
Criteria,
dB(A) [1]
Annex 8B-3e : Construction Noise Assessment - Predicted Noise Levels from Construction of Sewage Pumping Stations for NSR N05a (Without Mitigation)
SWL, dB(A)[4]
Predicted CNL, dB(A)[4][5]
Cheung Fu Street SPS Cheung Fu Street SPS
NSR Location Ground
investigation
Site
Clearance
Site
formation
Excavation /
Shoring
Construction
of sub-
structure
Backfilling
(except
Lorry)
Backfilling
(Lorry only)
Construction of
superstructure
E&M
installations
Architectural
and
landscaping
work
Distance Corr. for distance Ground
investigation
Site
Clearance
Site
formation
Excavation /
Shoring
Construction
of sub-
structure
Backfilling Backfilling Construction of
superstructure
E&M
installations
Architectural
and
landscaping
work
dB(A)[1] a) b) c) d) e) e) f) g) h) m
[2]dB(A)
[3][4] dB(A) a) b) c) d) e) e) f) g) h)
SPS works
area
SPS works
area
SPS works
area
SPS works
area
SPS works
area
Roadside Roadside Roadside Roadside SPS
works
area
Roadside SPS
works
area
Roadside SPS works
area
SPS works
area
SPS works
area
SPS works
area
SPS works
area
Roadside Roadside Roadside Roadside
N05a Residences at Cheung Fu Street 75 110 114 113 112 105 103 112 111 111 11 20 -29 -34 3 84 88 87 87 79 72 81 80 80
Predicted CNL for individual Activty, dB(A) 84 88 87 87 81 80 80
Notes:
[1] 70/65 Noise criteria during normal school days / examination period
[2] Distance more than 300m from the works area were not assessed
[3] Distance Correction for PMEs = 10*log(2*PI*r2)
[4] The figures are rounded-up to a whole number.
[5] 76 Predicted Noise Level exceeded the corresponding EIAO-TM noise criteria.
Corr. for
façade
EIAO-TM
Noise
Criteria
80
No. Activity Description SWL Distance Corr. for
distance
Corr. for
façade
NSR
LocatiodB(A)
[4]m
[2]dB(A)
[3][4] dB(A)
N01a Shui Hau Village 75 -- n/a n/a n/a -- 3 --
N01b Shui Hau Village 75 -- n/a n/a n/a -- 3 --
N01c Shui Hau Village 75 -- n/a n/a n/a -- 3 --
N02 Tong Fuk Centre 75 -- n/a n/a n/a -- 3 --
N03a Tong Fuk Village 75 -- n/a n/a n/a -- 3 --
N03b Tong Fuk Village 75 -- n/a n/a n/a -- 3 --
N05a Residences at Cheung Fu Street 75 -- n/a n/a n/a -- 3 --
N05b Residences at Cheung Fu Street 75 -- n/a n/a n/a -- 3 --
N06 WSD Quarter 75 -- n/a n/a n/a -- 3 --
N07 Government Holiday Bungalows 75 -- n/a n/a n/a -- 3 --
N08 Cheung Sha Ha Tsuen 75 -- n/a n/a n/a -- 3 --
N09 Cheung Sha Sheung Tsuen 75 -- n/a n/a n/a -- 3 --
N10 Cheung Sha Sheung Tsuen 75 -- n/a n/a n/a -- 3 --
N11a YMCA Youth Camp 75 -- n/a n/a n/a -- 3 --
N11b San Shek Wan 75 -- n/a n/a n/a -- 3 --
N11c San Shek Wan 75 -- n/a n/a n/a -- 3 --
N12a Lo Uk Tsuen 75 2 Sewage Treatment Works 120 87 -47 3 77
N12b Lo Uk Tsuen 75 2 Sewage Treatment Works 120 225 -55 3 68
N12c Lo Uk Tsuen 75 -- n/a 120 n/a -- 3 --
N13 Pui O San Wai Tsuen 75 -- n/a n/a n/a -- 3 --
N14 South Lantau Community Centre 75 -- n/a n/a n/a -- 3 --
N15a Pui O Lo Wai Tsuen 75 -- n/a n/a n/a -- 3 --
N15b Pui O Lo Wai Tsuen 75 -- n/a n/a n/a -- 3 --
N16a Ham Tin San Tsuen 75 -- n/a n/a n/a -- 3 --
N16b Ham Tin San Tsuen 75 -- n/a n/a n/a -- 3 --
N17 Bui O Public School 70/65 -- n/a n/a n/a -- 3 --
Notes:
[1] 70/65 Noise criteria during normal school days / examination period
[2] Distance more than 300m from the works area were not assessed
[3] Distance Correction for PMEs = 10*log(2*PI*r2)
[4] The figures are rounded-up to a whole number.
[5] 76 Predicted Noise Level exceeded the corresponding EIAO-TM noise criteria.
Annex 8B-3f : Construction Noise Assessment - Predicted Noise Levels from Construction of Sewage
Treatment Works (Without Mitigation)
Predicted CNL,
dB(A)[4][5]
EIAO-TM
Noise
Criteria,
dB(A) [1]
No. Activity Description SWL Distance Corr. for
distance
Corr. for
façade
NSR Location dB(A)[4]
m[2]
dB(A)[3][4] dB(A)
N01a Shui Hau Village 75 -- n/a n/a n/a -- 3 --
N01b Shui Hau Village 75 -- n/a n/a n/a -- 3 --
N01c Shui Hau Village 75 -- n/a n/a n/a -- 3 --
N02 Tong Fuk Centre 75 -- n/a n/a n/a -- 3 --
N03a Tong Fuk Village 75 -- n/a n/a n/a -- 3 --
N03b Tong Fuk Village 75 -- n/a n/a n/a -- 3 --
N05a Residences at Cheung Fu Street 75 -- n/a n/a n/a -- 3 --
N05b Residences at Cheung Fu Street 75 -- n/a n/a n/a -- 3 --
N06 WSD Quarter 75 -- n/a n/a n/a -- 3 --
N07 Government Holiday Bungalows 75 -- n/a n/a n/a -- 3 --
N08 Cheung Sha Ha Tsuen 75 -- n/a n/a n/a -- 3 --
N09 Cheung Sha Sheung Tsuen 75 -- n/a n/a n/a -- 3 --
N10 Cheung Sha Sheung Tsuen 75 -- n/a n/a n/a -- 3 --
N11a YMCA Youth Camp 75 -- n/a n/a n/a -- 3 --
N11b San Shek Wan 75 -- n/a n/a n/a -- 3 --
N11c San Shek Wan 75 -- n/a n/a n/a -- 3 --
N12a Lo Uk Tsuen 75 18 Sewage Pumping Station - Shui Hau 111 165 -52 3 62
N12b Lo Uk Tsuen 75 -- n/a 111 n/a -- 3 --
N12c Lo Uk Tsuen 75 -- n/a 111 n/a -- 3 --
N13 Pui O San Wai Tsuen 75 -- n/a n/a n/a -- 3 --
N14 South Lantau Community Centre 75 -- n/a n/a n/a -- 3 --
N15a Pui O Lo Wai Tsuen 75 -- n/a n/a n/a -- 3 --
N15b Pui O Lo Wai Tsuen 75 -- n/a n/a n/a -- 3 --
N16a Ham Tin San Tsuen 75 -- n/a n/a n/a -- 3 --
N16b Ham Tin San Tsuen 75 -- n/a n/a n/a -- 3 --
N17 Bui O Public School 70/65 -- n/a n/a n/a -- 3 --
Notes:
[1] 70/65 Noise criteria during normal school days / examination period
[2] Distance more than 300m from the works area were not assessed
[3] Distance Correction for PMEs = 10*log(2*PI*r2)
[4] The figures are rounded-up to a whole number.
[5] Only potentail noise impact from land-based works is assessed as no NSRs were identified within 300m of the marine based works area.
Annex 8B-3g : Construction Noise Assessment - Predicted Noise Levels from Construction of Submarine Outfall
(Without Mitigation)
Predicted CNL,
dB(A)[4]
EIAO-TM
Noise
Criteria,
dB(A) [1]
Annex 8B-4a : Construction Noise Assessment - Predicted Maximum Cumulative Noise Levels from Construction of Trunk Sewers/Rising Mains and Sewage Pumping Station (Without Mitigation)
Predicted CNL, dB(A)[2][3][4]
Predicted Maximum Cumulative CNL, dB(A)[2][3][4]
Trunk Sewers/Rising Mains SPS [6] Trunk Sewers/Rising Mains
NSR Location EIAO-TM
Noise
Criteria
Sawcutting
pavement
Breaking
up of
pavement
Excavation
/ Shoring
Pipe
laying
Backfilling Reinstatement
(concrete)
Reinstatement
(asphalt)
Painting of
road
marking
Sawcutting
pavement
Breaking
up of
pavement
Excavation
/ Shoring
Pipe
laying
Backfilling Reinstatement
(concrete)
Reinstatement
(asphalt)
Painting of
road
marking
dB(A)[1] a) b) c) d) e) f) g) h) a) b) c) d) e) f) g) h)
N01c Shui Hau Village 75 77 84 75 67 70 71 75 53 70 78 84 77 72 73 74 76 70
N03a Tong Fuk Village 75 88 95 87 78 81 82 86 65 74 88 95 87 80 82 83 86 75
N03b Tong Fuk Village 75 86 93 85 76 79 81 84 63 68 86 93 85 77 80 81 84 69
N05a Residences at Cheung Fu Street 75 82 89 81 72 75 76 80 59 88 89 92 89 88 88 88 89 88
N05b Residences at Cheung Fu Street 75 83 90 82 73 76 78 81 60 64 83 90 82 74 77 78 81 65
N06 WSD Quarter 75 76 83 75 66 70 71 74 53 60 77 83 75 67 70 71 74 61
N07 Government Holiday Bungalows 75 81 88 80 71 74 76 79 58 67 82 88 80 73 75 76 80 68
N08 Cheung Sha Ha Tsuen 75 79 86 77 69 72 73 76 55 79 82 86 81 79 79 80 81 79
N09 Cheung Sha Sheung Tsuen 75 79 86 77 69 72 73 76 55 62 79 86 77 70 72 73 77 63
N11a YMCA Youth Camp 75 84 91 83 74 77 79 82 61 62 84 91 83 75 77 79 82 64
N11b San Shek Wan 75 86 93 85 76 79 81 84 63 74 87 93 85 78 80 81 85 74
N14 South Lantau Community Centre 75 93 100 92 83 86 88 91 70 61 93 100 92 83 86 88 91 70
N16a Ham Tin San Tsuen 75 85 92 83 75 78 79 82 61 65 85 92 83 75 78 79 83 67
N16b Ham Tin San Tsuen 75 82 89 81 72 75 76 80 59 63 82 89 81 72 75 76 80 64
Notes:
[1] 70/65 Noise criteria during normal school days / examination period
[2] Distance more than 300m from the works area were not assessed
[3] Distance Correction for PMEs = 10*log(2*PI*r2)
[4] The figures are rounded-up to a whole number.
[5] 76 Predicted Noise Level exceeded the corresponding EIAO-TM noise criteria.
[6] Maximum predicted CNL, please refer to Annex 8D-6d & 8D-6e for detailed calculation
Annex 8B-4b: Construction Noise Assessment - Predicted Maximum Cumulative Noise Levels from Construction of Trunk Sewers/Rising Mains, Sewage Treatment Works and Submarine Outfall (Without Mitigation)
Predicted CNL, dB(A)[2][3][4]
Predicted Maximum Cumulative CNL, dB(A)[2][3][4]
Trunk Sewers/Rising Mains STW Trunk Sewers/Rising Mains
NSR Location EIAO-TM
Noise
Criteria
Sawcutting
pavement
Breaking
up of
pavement
Excavation
/ Shoring
Pipe
laying
Backfilling Reinstatement
(concrete)
Reinstatement
(asphalt)
Painting of
road
marking
Sawcutting
pavement
Breaking
up of
pavement
Excavation
/ Shoring
Pipe
laying
Backfilling Reinstatement
(concrete)
Reinstatement
(asphalt)
Painting of
road
marking
dB(A)[1] a) b) c) d) e) f) g) h) a) b) c) d) e) f) g) h)
N12a Lo Uk Tsuen 75 80 87 78 70 73 74 77 56 77 62 81 87 81 78 78 79 80 77
N12b Lo Uk Tsuen 75 89 96 88 79 82 84 87 66 68 -- 89 96 88 80 83 84 87 70
Notes:
[1] 70/65 Noise criteria during normal school days / examination period
[2] Distance more than 300m from the works area were not assessed
[3] Distance Correction for PMEs = 10*log(2*PI*r2)
[4] The figures are rounded-up to a whole number.
[5] 76 Predicted Noise Level exceeded the corresponding EIAO-TM noise criteria.
Submarine
Outfall
