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Restoring Streambank Stability to Achieve MS4 Water Quality Objectives
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Restoring Streambank Stability to Achieve MS4 Water Quality Objectives

This month's SER webinar is presented by Stantec.

7/17/2019
When: Wednesday, July 17, 2019
11:00AM ET
Where: United States
Contact:

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Sponsored by Stantec. Legislative and regulatory changes in 2013 led to significantly increased compliance challenges for all MS4 localities (6 states and DC) within the Chesapeake Bay watershed. These localities are now responsible for sediment and nutrient load reductions from existing sources, or retrofits. Upland BMP retrofits are commonly considered one of the more costly interventions on a dollar per pound of nutrients removed basis, while stream restoration, has recently shown to be one of the most cost-effective practices available to MS4 permittees. The EPA Chesapeake Bay Program Office (CBPO) currently estimates that 418 miles of urban stream restoration will be implemented by 2025 in Virginia and Maryland alone, because of these new water quality requirements.
 
To quantify nutrient reductions, the CBPO developed a practical guidance document outlining acceptable methodologies in a document titled “Recommendations of the Expert Panel to Define Removal Rates for Individual Stream Restoration Projects” (approved May 13th 2013). Within this document, four protocols are described as acceptable to quantify these reductions for proposed WQ improvement projects. Over the past five years, Stantec has tested the relevant protocols, evaluated case studies, and provided our clients with direction on the most cost-efficient practices for sediment and nutrient crediting towards TMDL requirements, including stream restoration.     

This presentation discusses the many of the findings and conclusions from the past 5 years on the East Coast and will be geared towards initiating an open dialog focused on stream restoration as potential treatment available for TMDL compliance and water quality improvements in other areas of the US.     

 

Register here.

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