RQM information system takes into account various non-conservative pollution parameters like Total Dissolved solids (TDS), Total Suspended Solids (TSS), Dissolved Oxygen (DO) and Biochemical Oxygen Demand (BOD) and obtains the concentration of such parameters along the river stretch. The system incorporates various mathematical models for computation of velocity variation along the river stretch, flow rate computation, and cross- sectional area computation and finally uses a water quality dispersion model to compute the concentration of vivid pollutants at various points in the river stretch to predict the quality of river. Keywords—Information System, River Water Quality, Flow rate computation, Simulation of stream velocity, Multi-industrial outfalls, Water quality model