Settembre 2012
| Data | Deriv. Rio Villano (A) | Deriv. Rio Comune destra (B) | Deriv. Rio Comune sinistra (C) | Deriv. Totale (A+B+C) |
| 01-set-12 | 0 | 0 * | 0 | 0 |
| 02-set-12 | 0 | 0 * | 0 | 0 |
| 03-set-12 | 0 | 0 * | 0 | 0 |
| 04-set-12 | 0 |
0 * |
0 |
0 |
| 05-set-12 | 0 |
0 * |
0 |
0 |
| 06-set-12 | 0 |
0 * |
0 |
0 |
| 07-set-12 | 0 |
0 * |
0 |
0 |
| 08-set-12 | 0 |
0 * |
0 |
0 |
| 09-set-12 | 0 |
0 * |
0 |
0 |
| 10-set-12 | 0 |
0 * |
0 |
0 |
| 11-set-12 | 0 | 0 * | 0 | 0 |
| 12-set-12 | 0 | 0 * | 0 | 0 |
| 13-set-12 | 0 | 0 * | 0 | 0 |
| 14-set-12 | 0 | 0 * | 0 | 0 |
| 15-set-12 | 0 |
0 * |
0 |
0 |
| 16-set-12 | 0 |
0 * |
0 |
0 |
| 17-set-12 | 0 |
0 * |
0 |
0 |
| 18-set-12 | 0 |
0 * |
0 |
0 |
| 19-set-12 | 0 |
0 * |
0 |
0 |
| 20-set-12 | 0 |
0 * |
0 |
0 |
| 21-set-12 | 0 |
0 * |
0 |
0 |
| 22-set-12 | 0 |
0 * |
0 |
0 |
| 23-set-12 | 0 |
0 * |
0 |
0 |
| 24-set-12 | 0 |
0 * |
0 |
0 |
| 25-set-12 | 0 |
0 * |
0 |
0 |
| 26-set-12 | 0 |
0 * |
0 |
0 |
| 27-set-12 | 0 |
0 * |
0 |
0 |
| 28-set-12 | 0 |
0 * |
0 |
0 |
| 29-set-12 | 0 |
0 * |
0 |
0 |
| 30-set-12 | 0 |
0 * |
0 |
0 |
Legenda: tutti i dati sono espressi in lt/sec
* = perdita paratoie
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L'ambito irriguo del Trebbia (esteso per circa 30.000 ettari) deriva le acque del torrente attraverso tre adduttori principali Rio Villano, Rio Comune di destra e Rio Comune di sinistra.
Le portate derivate dal torrente Trebbia sono state tutte rilevate alle ore 12.00 circa.