Chapter 12
Modeling for Total Maximum Daily Load Implementation
Publication: Total Maximum Daily Load Development and Implementation: Models, Methods, and Resources
Abstract
This chapter discusses the state-of-the-practice of models used in total maximum daily load (TMDL) implementation planning. It includes examples of watershed-specific models including ArcView Generalized Watershed Loading Function for Pennsylvania watersheds, Source Loading and Management Model for Windows for Wisconsin watersheds, and the Chesapeake Assessment Scenario Tool for the Chesapeake Bay watershed TMDL implementation. The chapter also discusses the applications of two spreadsheet analysis packages: Watershed Treatment Model and Spreadsheet Tool for Estimating Pollutant Load. A major factor that encourages flexibility in model selection under the likelihood that a model different from the one used in TMDL development model could be used to support TMDL implementation is access to greater data resources and to data of higher quality. Some state TMDL regulatory agencies either provide or recommend models to be used for implementation decision support. This chapter describes several off-the-shelf models and one custom approach that could meet the need for TMDL implementation.
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Acknowledgments
Reviews, edits, and comments provided by Nigel W. T. Quinn, Harry X. Zhang, and G. Padmanabhan in this chapter are greatly appreciated.
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Information & Authors
Information
Published In
Total Maximum Daily Load Development and Implementation: Models, Methods, and Resources
Pages: 357 - 378
Editors: Harry X. Zhang, Ph.D., Nigel W.T. Quinn, Ph.D. https://orcid.org/0000-0003-3333-4763, Deva K. Borah, Ph.D. https://orcid.org/0000-0002-2107-9390, and G. Padmanabhan, Ph.D. https://orcid.org/0000-0002-3209-1379
ISBN (Print): 978-0-7844-1594-8
ISBN (Online): 978-0-7844-8382-4
Copyright
© 2022 American Society of Civil Engineers.
History
Published online: Feb 24, 2022
Published in print: Mar 1, 2022
ASCE Technical Topics:
- Bays
- Business management
- Clean Water Act
- Coastal engineering
- Coastal management
- Coasts, oceans, ports, and waterways engineering
- Computer programming
- Computer software
- Computing in civil engineering
- Decision making
- Decision support systems
- Design (by type)
- Engineering fundamentals
- Load factors
- Practice and Profession
- River engineering
- River systems
- Spreadsheets
- Structural design
- Structural engineering
- Structural systems
- Water and water resources
- Water management
- Water policy
- Watersheds
- Windows
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Cited by
- Deva K. Borah, Harry X. Zhang, Moira Zellner, Ebrahim Ahmadisharaf, Meghna Babbar-Sebens, Nigel W. T. Quinn, Saurav Kumar, Vamsi Krishna Sridharan, Navaratnam Leelaruban, Craig Lott, Advances in Total Maximum Daily Load Implementation Planning by Modeling Best Management Practices and Green Infrastructures, Journal of Environmental Engineering, 10.1061/JOEEDU.EEENG-7578, 150, 7, (2024).