% BOD | Winter | Spring | % COD | Winter | Spring |
First channel | 12.34 | 12.20 | First channel | 13.53 | 8.05 |
Second channel | 2.31 | 9.15 | Second channel | 2.60 | 9.52 |
Third channel | 4.42 | 8.96 | Third channel | 5.48 | 1.56 |
Fourth channel | 2.92 | 1.67 | Fourth channel | 6.02 | 5.77 |
Fifth channel | 9.50 | 8.51 | Fifth channel | 5.40 | 8.32 |
Sixth channel | 7.42 | 6.81 | Sixth channel | 28.33 | 7.18 |
Seventh channel | 26.17 | 32.99 | Seventh channel | 30.95 | 38.49 |
Input-output | 74.11 | 71.69 | Input-output | 64.90 | 67.99 |