| Rank | Parameter | Parameter definition | Fitted value |
| 1 | CN2.mgt | SCS runoff curve number | −0.295000 |
| 2 | ALPHA_BF.gw | Base flow alpha factor | 0.268333 |
| 3 | GW_DELAY.gw | Groundwater delay | 93.699997 |
| 4 | GWQWN.gw | Threshold depth of water in the shallow aquifer required for return flow to occur | 1,436,666,626 |