| River | Water functional zones | NH3-N (mg/L) | COD (mg/L) | ||
| Standard value | Observed value in 2013 | Standard value | Observed value in 2013 | ||
| U-WR | IV | <1.5 | 7.64 (0.29~15.6) | <30 | 43 |
| L-WR | V | <2 | 14.75 (9.24~21.6) | <40 | 49.5 |
| NCR | V | <2 | 16.22 (8.9~23.5) | <40 | 49.4 |