Using Subcatchment Monitoring Data to Prioritize Stormwater Treatment Control Placement: A New Statistical Methodology

摘要

Since the inception of this statistical approach, runoff samples have continued to be collected during the wet season, and the ranking process will continue to be repeated annually, thereby increasing statistical significance in the complete dataset while allowing for the evaluation of effects of implemented treatment controls and changing site conditions (BMP construction, impacted soil removal, etc.). Early results of this approach have indicated that using a rigorously statically approach that allows for flexibility in BMP siting requirements that is both compliant and cost effective. An example outcome of the utilization of this statistical approach for siting new BMPs is from 2013, when an innovative outlet-controlled biofilter with engineered media was installed to address runoff from an onsite parking area. This biofilter was given the 2013 Outstanding Stormwater BMP Implementation Project Award by the California Stormwater Quality Association. Figure 4 is a photo of this biofilter as it today.