Location | Treatment | N | dB |
Tank room | No water flow | 5 | 36.1 (1.7) w |
| Flow to all tanks | 15 | 68.4 (1.5) x |
| Tank cleaning (center of room) | 3 | 73.0 (0.8) y |
| Tank cleaning (by tanks) | 3 | 77.1 (0.8) z |
| Feeders running | 3 | 73.2 (0.8) y |
Rearing pavilion | Normal operation | 15 | 70.2 (3.1) x |
| Power washing tanks | 15 | 76.1 (2.3) y |
| Power washer | 3 | 83.2 (2.1) z |
| Tank sumps | 3 | 77.8 (1.7) yz |