Enhanced Erosion and Sediment Control
Erosion and Sediment Control (ESC) Practices are required to be employed at construction sites in all of the Bay states. In 2007, the USWG approved sediment and nutrient reduction rates for ESC practices. At the time, the expert panel process was limited to research studies that had been conducted prior to 1995, and had no data on nutrient loadings from construction sites, or any corresponding reductions achieved by ESC practices. The panel noted in its report that they had low confidence in their findings due to the limited available research, and that the relatively low rates reflected a discount due to real world issues related to poor installation and maintenance of practices.
Since that time, all of the Bay states have strengthened their ESC regulations and construction general permits, improved their ESC technology, and developed more effective compliance and enforcement methods at construction sites. In July 2012, an Expert Panel was convened to review all of the available science on the nutrient and sediment removal performance associated with enhanced erosion and sediment control practices that are applied to construction sites.
In early 2014, the Urban Stormwater Workgroup, the Watershed Technical Workgroup, and the Water Quality Goal Implementation Team approved the expert panel’s final recommendations. In conjunction with Jeremy Hanson of the Chesapeake Research Consortium, the Chesapeake Stormwater Network has put together a document outlining the expert panel’s final recommendations to define removal rates for erosion and sediment control practices. That document can be downloaded using the link below.
Enhanced Erosion and Sediment Control Final Report(s)
The following training resources have been created for explaining the panel recommendations – enjoy!