Dae Dong Stream basin has been selected and operated as a representative experimental basin of
UNESCO IHP since year 2007. It is located at Daejeon Metropolitan city, Korea and hydrologic data such as
precipitation, runoff, and water quality have been being collected and provided after establishing the monitoring plan
as an experimental basin for city/disaster prevention. In this study, runoff characteristics for non-point sources of
rainfall-runoff process from urban stream basins were analyzed using the flow and water quality data measured
during the year 2011. As an operation result for the test subjected basin, rating curves at Panam Bridge and at
Chulgap Bridge were prepared, and to compare runoff characteristics of non-point source by precipitation, by
estimating the Event Mean Concentration(EMC) for 10 water quality items, runoff characteristics of non-point source
per different observation points as per the precipitation, antecedent rainfall, and land utilization status were analyzed.