Water Quantity Workgroup

This is a workgroup focusing on ways to put forward a stormwater management regulation that closely integrates water quality and quantity criteria and focus more attention to runoff volume reduction in ways that give developers "credit."

• Material from April 22, 2008, meeting
  • Agenda
  • Overview of Existing Stormwater Quantity Requirements and Issues
  • Stormwater Quantity Related Excerpts from Laws and Regulations
  • Example Rainfall Frequency Spectrum Analysis
  • Quantity Control Criteria Discussion Paper
  • Center for Watershed Protection Memo Regarding Effect of Runoff Reduction Method on Site Hydrographs
  • Regarding Effect of Runoff Reduction Method on Site Hydrographs from Milwaukee Wisconsin
  • Center for Watershed Protection Memo Regarding Potential Criteria for Stable Environmental Conveyances
  • Minutes
• Material from May 20, 2008, meeting
  • Agenda
  • Workgroup work plan
  • 1999 Maryland DEP Technical Memo Providing Scientific Support for Uniform BMP Sizing Criteria
  • Evaluation of Design Storm Options for Channel Protection under DCR Stormwater Management Regulations; presented by Michael Rolband, Wetland Studies and Solutions, Inc.
    • Explanatory letter
    • Reference graphs
    • Summary of model results
• Material from May 27, 2008, meeting
  • DCR draft discussion document
  • Henrico County draft discussion document
  • The Nature Conservancy draft discussion document
  • Developing a Water Quantity Sizing Approach for LID Design
  • Draft outline developed during meeting
• Material from July 9, 2008, meeting
  • Draft discussion document
  • Joe Battiata and Keith White draft discussion document