| Item | Data type | Data source |
| Data for model building, parameter calibration and verification | Flow and water level data | Beijing Hydrological Station |
| Rainfall and evaporation data | ||
| Water quality data | Beijing Environmental Protection Monitoring Center | |
| River sewage outlet information | Beijing Pollution Source Survey Information Database | |
| Topographic data | Field measurement | |
| Planning information for simulation scenario settings | Basic emission reduction measures, intensive measures for water quality improvement | The Action Plan; other related planning documents |
| Discharge standard of water pollutants | Discharge standard of water pollutants for municipal wastewater treatment plants (DB 11/890-2012); Integrated discharge standard of water pollutants (DB 11/307-2013) |