Join us on September 3 for an engaging session on how in-situ soil approaches can make bioretention projects better, faster, and more cost-effective.
In-Situ Soil in Bioretentions: Better, Faster, and More Cost-Effective
Conventional bioretention retrofit practices often rely on extensive excavation, soil disposal, bioengineered soil media, and underdrain systems. These components increase project costs, carbon footprint, timelines, and long-term maintenance demands while reducing the water quality and water quantity benefits. In contrast, in-situ bioretention is a way of working with nature in the design and construction of bioretention systems to make them more effective and lower cost. The “in-situ” soil approach reduces construction costs by 50% and maintenance costs by 25 to 40%. Most sites can benefit from using this approach over conventional practices.
Learning Objectives: This session will explore how working with existing soils and native plants can cut costs and improve stormwater management. You will learn when this approach is feasible, the benefits it provides, and how to apply it in your next project.
Speakers:
· Rodney Barnes, Town of Edmonston (Town Manager)
· Mike Clar, P.E., Ecosite, LLC (Principal Engineer and Owner)
· Katie Scott, P.E., Coastal Resources, LLC (Senior Water Resources Engineer)
Session Format
· 1:00–2:00 p.m. – Hybrid Zoom webinar
· 2:00–3:00 p.m. – Optional in-person field training at Trust Green Headquarters (108 Severn Avenue, Annapolis, MD), including a tour of the “in-situ” bioretentions, field testing demonstrations, review of design plans, and discussion of how the practices function in the field.
Date: September 3, 2026
Time: 1:00–3:00 p.m.
