Extensive use of chlorinated phenols is a cause for concern since these bioactive compounds has adverse effects on human health 1.The stormwater runoff has been a major pollution source contributing to deterioration of the quality of receiving waters.In this research,a biochar and microorganism augmented bio-reactive layer with high degradation potential is proposed for remediation of 2,4-dichlorophenol(2,4-DCP)contaminated surface runoff(Fig.1).