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Stormwater Management and Design Guidance Manual

West Virgina Department of Environmental Protection recently released the Stormwater Management and Design Guidance Manual. You can download the entire manual from this website. This manual provides design and guidance on designing and implementing stormwater management practices that will manage rainfall on site in accordance with West Virginia's small Municipal Separate Storm Sewer System (MS4) general permit.

This manual contains stormwater management practices that utilize the Runoff Reduction Method, which is a method that utilizes infiltration, harvesting and evapotranspiration of rainfall on site. For more information about the runoff reduction method please click here.

Erratum notice: If you find errors or broken links please email Andy Parsons with that information at David.A.Parsons@wv.gov.

The first file below is the entire manual in PDF format. It is a large file and may take time to download depending on your internet connection speed. The files beneath the first one are separated by Chapter, and the individual stormwater management practices are each provided in their own file.

Stormwater Management and Design Guidance Manual (entire document)	PDF	21MB
Chapter 1 - Introduction
Chapter 2 - West Virginia Stormwater Regulatory Framework
Chapter 3 - Best Management Practice Selection and Design Methodology
Chapter 4 - Stormwater BMP Specifications
Chapter 4.1 - Self crediting Better Site Design Practices
Chapter 4.2.1 Sheet Flow to Vegetated Filter Strips and Conservation Areas
Chapter 4.2.2 - Impervious Surface Disconnection
Chapter 4.2.3 - Bioretention		5MB
Chapter 4.2.4 - Permeable Pavement
Chapter 4.2.5 - Grass Swales
Chapter 4.2.6 - Infiltration
Chapter 4.2.7 - Regenerative Stormwater Conveyance System
Chapter 4.2.8 - Rainwater Harvesting
Chapter 4.2.9 - Vegetated Roofs
Chapter 4.2.10 - Filtration Practices
Chapter 4.2.11 - Stormwater Wetlands
Chapter 5 - Stormwater Hotspots
Chapter 6 - Design Examples		2.6MB
Appendix A - Plan Review, Construction, and Maintenance Checklists
Appendix B - Infiltration and Soil Testing
Appendix C - Stormwater Management Design in Karst Areas
Appendix D - Soil Amendments
Appendix E - Treatment Volume Peak Flow Rate
Appendix F - BMP Landscaping Plants
Appendix G - Resources for Design of Wet and Dry Ponds
Appendix H - Considerations for Impaired Waters

Appendix A Checklists - Excel Spreadsheets
Construction Checklist	XLS
Maintenance Checklist	XLS
Plan Review Checklist	XLS
Rainwater Harvesting Spreadsheet Note This a large EXCEL file and may take time to download	XLS	124MB

CAD Drawing	DWG	4MB