| Appendix 4.1 | |||||||
| Assumed Powered Mechanical Equipment for Pumping Stations (P1a, P1b, & P2) Construction (Unmitigated) | |||||||
| Foundation | |||||||
| Excavation | |||||||
| Powered Mechanical Equipment | Reference | No. Items | SWL/Item | On-Time | Sub-total | Total SWL | Total SWL |
| (PME) | dB(A) | % | SWL dB(A) | dB(A) | dB(A) | ||
| Excavator (mini) | BS C.3, item 108 | 2 | 97 | 100% | 100 | ||
| Hydraulic breaker | CNP 027 | 1 | 122 | 100% | 122 | ||
| Lorry (mini) | BS C.8, item 25 | 2 | 96 | 100% | 99 | 122.0 | 122.05 |
| Formwork, reinforcement & fixing | |||||||
| Powered Mechanical Equipment | Reference | No. Items | SWL/Item | On-Time | Sub-total | Total SWL | Total SWL |
| (PME) | dB(A) | % | SWL dB(A) | dB(A) | dB(A) | ||
| Mobile crane (mini) | BS C.7, item 118 | 2 | 99 | 100% | 102 | 102.5 | |
| Bar bender and cutter (electric) | CNP 021 | 2 | 90 | 100% | 93 | ||
| Concreting | |||||||
| Powered Mechanical Equipment | Reference | No. Items | SWL/Item | On-Time | Sub-total | Total SWL | Total SWL |
| (PME) | dB(A) | % | SWL dB(A) | dB(A) | dB(A) | ||
| Lorry (mini) | BS C.8, item 25 | 2 | 96 | 100% | 99 | ||
| Concrete mixer (electric) | CNP 045 | 2 | 96 | 100% | 99 | ||
| Air Compressor | CNP 002 | 2 | 102 | 100% | 105 | ||
| Vibratory poker, hand-held | CNP 170 | 2 | 113 | 100% | 116 | 116.5 | 116.50 |
| Backfilling | |||||||
| Powered Mechanical Equipment | Reference | No. Items | SWL/Item | On-Time | Sub-total | Total SWL | Total SWL |
| (PME) | dB(A) | % | SWL dB(A) | dB(A) | dB(A) | ||
| Compactor | CNP 050 | 2 | 105 | 100.0% | 108 | 108.0 | 108.01 |
| Superstructural Works | |||||||
| Formwork, reinforcement & fixing | |||||||
| Powered Mechanical Equipment | Reference | No. Items | SWL/Item | On-time | Sub-total | Total SWL | Total SWL |
| (PME) | dB(A) | % | SWL dB(A) | dB(A) | dB(A) | ||
| Mobile crane (mini) | BS C.7, item 118 | 2 | 99 | 100% | 102 | 102.5 | |
| Bar bender and cutter (electric) | CNP 021 | 2 | 90 | 100% | 93 | ||
| Concreting | |||||||
| Powered Mechanical Equipment | Reference | No. Items | SWL/Item | On-Time | Sub-total | Total SWL | Total SWL |
| (PME) | dB(A) | % | SWL dB(A) | dB(A) | dB(A) | ||
| Lorry (mini) | BS C.8, item 25 | 2 | 96 | 100% | 99 | ||
| Concrete mixer (electric) | CNP 045 | 2 | 96 | 100% | 99 | ||
| Air Compressor | CNP 002 | 2 | 102 | 100% | 105 | ||
| Vibratory poker, hand-held | CNP 170 | 2 | 113 | 100% | 116 | 116.5 | 116.50 |
| Note: | |||||||
| BS BS5228 (1997) Part 1 Noise and Vibration Control on Construction and open sites | |||||||