| Νο. | Diffuser’s name | Setup Area | Tracer’s name | Disposal depth (m) | Urban waste flow (m3/s) | Concentration of suspended solid particles (mg/l) |
| 1 | DIFFUSER 1 | KASTELA | Tracer 3 | 18 | 0.04 | 10 |
| 2 | DIFFUSER 2 | CHALKIS | Tracer 4 | 10 | 0.24 | 35 |
| 3 | DIFFUSER 3 | ERETRIA | Tracer 5 | 24 | 0.04 | 35 |
| 4 | DIFFUSER 4 | AMARINTHOS | Tracer 6 | 19 | 0.03 | 30 |
| 5 | DIFFUSER 5 | ALIVERI | Tracer 7 | 47 | 0.04 | 25 |