| Appendix 4.9 |
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| Predicted Noise
Levels from Construction of
Pumping Stations (With the Use of Quiet Equipment) |
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| Pumping Station
P1a |
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| Sensitive receiver |
Distance from Construction Activities, m |
Foundation |
Superstructural Works |
| Excavation, dB(A) |
Formwork, reinforcement & fixing, dB(A) |
Concreting, dB(A) |
Backfilling, dB(A) |
Formwork, reinforcement & fixing, dB(A) |
Concreting, dB(A) |
| SWL |
110.7 |
102.5 |
106.3 |
108.0 |
102.5 |
106.3 |
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110.72 |
102.53 |
106.258 |
108.01 |
102.53 |
106.26 |
| CMV1 |
60 |
70.1 |
61.9 |
65.7 |
67.4 |
61.9 |
65.7 |
| CMV2 |
24 |
78.1 |
69.9 |
73.7 |
75.4 |
69.9 |
73.7 |
| CMV3* |
66 |
59.3 |
51.1 |
54.9 |
56.6 |
51.1 |
54.9 |
| CMV4 |
52 |
71.4 |
63.2 |
66.9 |
68.7 |
63.2 |
67.0 |
| CMV5 |
46 |
72.4 |
64.2 |
68.0 |
69.8 |
64.2 |
68.0 |
| CMV6 |
30 |
76.2 |
68.0 |
71.7 |
73.5 |
68.0 |
71.8 |
| THT |
204 |
59.5 |
51.3 |
55.1 |
56.8 |
51.3 |
55.1 |
| SKW1 |
240 |
58.1 |
49.9 |
53.7 |
55.4 |
49.9 |
53.7 |
| SKW2 |
266 |
57.2 |
49.0 |
52.8 |
54.5 |
49.0 |
52.8 |
| SKW3 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
| SKW4 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
| SKW5 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
| SKW6 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
| SKW7* |
250 |
47.7 |
39.5 |
43.3 |
45.1 |
39.5 |
43.3 |
| SKW8* |
300 |
46.2 |
38.0 |
41.7 |
43.5 |
38.0 |
41.8 |
| SKW9 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
| SKW10 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
| SKW11 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
| SKW12 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
| TSW1 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
| TSW2 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
| TSW3 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
| TSW4 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
| MTW1 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
| MTW2 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
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| Pumping Station
P1b |
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| Sensitive receiver |
Distance from Construction Activities, m |
Foundation |
Superstructural Works |
| Excavation, dB(A) |
Formwork, reinforcement & fixing, dB(A) |
Concreting, dB(A) |
Backfilling, dB(A) |
Formwork, reinforcement & fixing, dB(A) |
Concreting, dB(A) |
| SWL |
110.7 |
102.5 |
106.3 |
108.0 |
102.5 |
106.3 |
| CMV1* |
130 |
53.4 |
45.2 |
49.0 |
50.7 |
45.2 |
49.0 |
| CMV2 |
92 |
66.4 |
58.2 |
62.0 |
63.7 |
58.2 |
62.0 |
| CMV3 |
104 |
65.4 |
57.2 |
60.9 |
62.7 |
57.2 |
61.0 |
| CMV4 |
52 |
71.4 |
63.2 |
66.9 |
68.7 |
63.2 |
67.0 |
| CMV5 |
92 |
66.4 |
58.2 |
62.0 |
63.7 |
58.2 |
62.0 |
| CMV6 |
96 |
66.1 |
57.9 |
61.6 |
63.4 |
57.9 |
61.7 |
| THT |
128 |
63.6 |
55.4 |
59.1 |
60.9 |
55.4 |
59.2 |
| SKW1 |
170 |
61.1 |
52.9 |
56.6 |
58.4 |
52.9 |
56.7 |
| SKW2* |
182 |
50.5 |
42.3 |
46.1 |
47.8 |
42.3 |
46.1 |
| SKW3* |
226 |
48.6 |
40.4 |
44.2 |
45.9 |
40.4 |
44.2 |
| SKW4* |
272 |
47.0 |
38.8 |
42.6 |
44.3 |
38.8 |
42.6 |
| SKW5 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
| SKW6 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
| SKW7 |
174 |
60.9 |
52.7 |
56.4 |
58.2 |
52.7 |
56.5 |
| SKW8 |
222 |
58.8 |
50.6 |
54.3 |
56.1 |
50.6 |
54.4 |
| SKW9 |
262 |
57.3 |
49.1 |
52.9 |
54.6 |
49.1 |
52.9 |
| SKW10 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
| SKW11 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
| SKW12 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
| TSW1 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
| TSW2 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
| TSW3 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
| TSW4 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
| MTW1 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
| MTW2 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
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| Pumping Station
P2 |
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| Sensitive receiver |
Distance from Construction Activities, m |
Foundation |
Superstructural Works |
| Excavation, dB(A) |
Formwork, reinforcement & fixing, dB(A) |
Concreting, dB(A) |
Backfilling, dB(A) |
Formwork, reinforcement & fixing, dB(A) |
Concreting, dB(A) |
| 110.7 |
102.5 |
106.3 |
108.0 |
102.5 |
106.3 |
| CMV1 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
| CMV2 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
| CMV3 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
| CMV4 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
| CMV5 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
| CMV6 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
| THT |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
| SKW1 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
| SKW2* |
288 |
46.5 |
38.3 |
42.1 |
43.8 |
38.3 |
42.1 |
| SKW3* |
256 |
47.5 |
39.3 |
43.1 |
44.8 |
39.3 |
43.1 |
| SKW4* |
212 |
49.2 |
41.0 |
44.7 |
46.5 |
41.0 |
44.8 |
| SKW5* |
168 |
51.2 |
43.0 |
46.8 |
48.5 |
43.0 |
46.8 |
| SKW6 * |
130 |
53.4 |
45.2 |
49.0 |
50.7 |
45.2 |
49.0 |
| SKW7 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
| SKW8* |
260 |
47.4 |
39.2 |
43.0 |
44.7 |
39.2 |
43.0 |
| SKW9* |
223 |
48.7 |
40.5 |
44.3 |
46.0 |
40.5 |
44.3 |
| SKW10 |
140 |
62.8 |
54.6 |
58.3 |
60.1 |
54.6 |
58.4 |
| SKW11 |
120 |
64.1 |
55.9 |
59.7 |
61.4 |
55.9 |
59.7 |
| SKW12 |
103 |
65.4 |
57.2 |
61.0 |
62.8 |
57.2 |
61.0 |
| TSW1 |
44 |
72.8 |
64.6 |
68.4 |
70.1 |
64.6 |
68.4 |
| TSW2 |
118 |
64.3 |
56.1 |
59.8 |
61.6 |
56.1 |
59.9 |
| TSW3 |
138 |
62.9 |
54.7 |
58.5 |
60.2 |
54.7 |
58.5 |
| TSW4 |
188 |
60.2 |
52.0 |
55.8 |
57.5 |
52.0 |
55.8 |
| MTW1 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
| MTW2 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
| Note: |
3 dB(A) facade effect was added in the
calculation |
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-- The noise
level at this particular NSR is negligible as it is more than 300m away from
the construction activity. |
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* Assumed 10dB(A) noise attenuation for
NSR which would be totally screened from construction activity |
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Boldface indicate an
exceedance of the noise criteria of 75dB(A) for residential uses and 70 dB(A)
for temple and
library |
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