January 5, 2021

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Dan Pankani and Scott Struck Coauthored Article on Estimating and Regionalizing Costs in the National Stormwater Calculator for Journal of Sustainable Water in the Built Environment

Dan Pankani, (Oregon) and Scott Struck, Ph.D., (Colorado) coauthored an article entitled “Estimating Regionalized Planning Costs of Green Infrastructure and Low-impact Development Stormwater Management Practices: Updates to the US Environmental Protection Agency’s National Stormwater Calculator” for publication in Journal of Sustainable Water in the Built Environment on December 23, 2020.

Dan and Scott’s coauthors were Jason Bernagros, U.S. EPA, and Marion Deerhake, RTI.

Dan Pankani is a licensed Engineer in Oregon with more than 18 years of experience in software development and water resources engineering. He has been involved in a comprehensive array of water resources, data management and best management practice design/retrofit projects for both private and public clients.

Scott Struck is a Principal based in Colorado with more than 20 years of experience focused on planning, design, and implementation of stormwater infrastructure and watershed management to meet drainage and regulatory requirements. He frequently works with public (municipal, county, state, and federal), private (industrial and commercial), and non-profit clients.

The Journal of Sustainable Water in the Built Environment presents activity and research developments in water issues, challenges, and opportunities throughout the developed landscape. The scope covers sustainable stormwater management and broader water systems interactions. Subjects include urban stormwater quantity, quality, hydrology, characterization, treatability, and impacts; water harvesting; urban water ecosystem services; sustainable urban watershed management; urban streams; combined sewer overflow/stormwater interactions; urban energy/water interactions; on-site/decentralized water and wastewater systems, life cycle analysis; and related policy, implementation, and economics.


Estimating regional costs of green infrastructure (GI) and low-impact development (LID) stormwater management controls is an important issue for many municipalities and water utilities in the United States. The National Stormwater Calculator (NSWC) is a site-scale, planning-level tool. A regional cost estimation methodology was recently added to the NSWC, enabling users to estimate region-specific capital and maintenance costs of commonly used GI controls. This paper discusses the approach used to estimate and regionalize costs in the NSWC.

More Information

About the article: https://ascelibrary.org/doi/10.1061/JSWBAY.0000934
About Publication: https://ascelibrary.org/journal/jswbay
For consultation regarding green infrastructure and low-impact development, contact Dan Pankani at This email address is being protected from spambots. You need JavaScript enabled to view it. or Scott Struck at This email address is being protected from spambots. You need JavaScript enabled to view it.
Learn more about Dan: https://www.linkedin.com/in/dan-pankani-33082b3/
Learn more about Scott: https://www.geosyntec.com/people/scott-struck