| Table C-1 Sound Power Level (SWL) Evaluation - Unmitigated | ||||||||
| Activities | PME | TM ID Code | Unit | SWL dB(A) | Sub-SWL | |||
| Powered Mechanical Equipment Used (Installation of Underground Cable) | ||||||||
| A | Road Breaking | A1 | Air Compressor | CNP 001 | 1 | 100 | 100 | 10000000000 |
| Hand-held Breaker | CNP 023 | 1 | 108 | 109 | 63095734448 | |||
| Total SWL | 109 | 73095734448 | ||||||
| A2 | Dump Truck | CNP 067 | 1 | 117 | 118 | 5.01187E+11 | ||
| Total SWL | 117 | 5.01187E+11 | ||||||
| A3 | Backhoe | CNP 081 | 1 | 112 | 118.5 | 1.58489E+11 | ||
| Total SWL | 112 | 1.58489E+11 | ||||||
| B | Trench Excavation | Backhoe | CNP 081 | 1 | 112 | 112 | 1.58489E+11 | |
| Total SWL | 112 | 1.58489E+11 | ||||||
| C | Road Reinstatement | C1 | Compactor | CNP 050 | 1 | 105 | 105 | 31622776602 |
| Total SWL | 105 | 31622776602 | ||||||
| C2 | Concrete Lorry Mixer | CNP 044 | 1 | 109 | 111 | 79432823472 | ||
| Total SWL | 109 | 79432823472 | ||||||
| C3 | Vibratory Poker | CNP 170 | 1 | 113 | 115 | 1.99526E+11 | ||
| Total SWL | 113 | 1.99526E+11 | ||||||
| Powered Mechanical Equipment Used (Construction of Cable Tunnel) | 1 | |||||||
| A | General | Loader | CNP 081 | 1 | 112 | 112 | 1.58489E+11 | |
| Backhoe / Muck Car | CNP 081 | 1 | 112 | 115 | 1.58489E+11 | |||
| Concrete Lorry Mixer | CNP 044 | 1 | 109 | 116 | 79432823472 | |||
| Mobile Crane | CNP 048 | 1 | 112 | 101 | 1.58489E+11 | |||
| Dump Trucks | CNP 067 | 1 | 117 | 117 | 5.01187E+11 | |||
| Concrete Pump | CNP 047 | 1 | 109 | 117.5 | 79432823472 | |||
| Mobile generator | CNP 101 | 1 | 108 | 118 | 63095734448 | |||
| Compressor | CNP 002 | 1 | 102 | 118 | 15848931925 | |||
| Water Pump | CNP 281 | 1 | 88 | 118 | 630957344.5 | |||
| Ventilation Fan | CNP 241 | 1 | 108 | 118.5 | 63095734448 | |||
| Total SWL | 121 | 1.27819E+12 | ||||||
| B | Site Formation | Rock Drill (Hydraulic) | CNP 182 | 1 | 123 | 123 | 1.99526E+12 | |
| Shotcrete Vehicle | CNP 047 | 1 | 109 | 123 | 79432823472 | |||
| Explosive Delivery Vehicle | CNP 141 | 1 | 112 | 123.5 | 1.58489E+11 | |||
| Total SWL | 123 | 2.23318E+12 | ||||||
| C | TBM Tunnel Construction | Tunnel Boring Machine | - | 1 | 88 | 80 | 630957344.5 | |
| (Envisaged Design) | Conveyor Belt System | CNP 041 | 1 | 90 | 92 | 1000000000 | ||
| Total SWL | 92 | 1630957344 | ||||||
| D | Drill & Blast Tunnel Construction | Rock Drill (Hydraulic) | CNP 182 | 1 | 123 | 123 | 1.99526E+12 | |
| (Alternative Design) | Conveyor Belt System | CNP 041 | 1 | 90 | 123 | 1000000000 | ||
| Shotcrete Vehicle | CNP 047 | 1 | 109 | 123 | 79432823472 | |||
| Explosive Delivery Vehicle | CNP 141 | 1 | 112 | 123.5 | 1.58489E+11 | |||
| Total SWL | 123 | 2.23418E+12 | ||||||
| E | Lining construction | Concrete Delivery Truck | CNP 141 | 1 | 112 | 123 | 1.58489E+11 | |
| Pumping Plant | CNP 047 | 1 | 109 | 114 | 79432823472 | |||
| Total SWL | 114 | 2.37922E+11 | ||||||