CSN Technical Bulletins

Technical Bulletin No 10: Bioretention Illustrated!

A Visual Guide for Constructing, Inspecting, Maintaining and Verifying the Bioretention Practice
Learn more…

Technical Bulletin No 9: Nutrient Accounting Methods to Document Local Stormwater Load Reductions

This Technical Bulletin outlines the best current science on urban stormwater nutrient management, and is intended to help states and local governments define their baseline loads and choose the most cost effective combination of practices to
meet their local load allocations under the Chesapeake Bay TMDL.
Learn more…

Technical Bulletin No 8: The Clipping Point
Aerial of lawns

Watershed managers are increasingly interested in isolating the land cover components of urban land use (turf cover, impervious cover and forest cover) in order to obtain better predictions about current and future runoff, pollutant export and stream quality.
Learn more…

Technical Bulletin No 7: Stormwater Pollution Benchmarking Tool

In the last year there has been growing recognition about the need to expand pollution prevention activities, particularly at federal facilities.
Learn more…

Technical Bulletin No 6: Users Guide for the ESD to the MEP Compliance Tool

This technical bulletin is intended to accompany the ESD to MEP spreadsheet compliance tool that was developed to simplify compliance with the 2008 MDE stormwater management regulations.
Learn more…

Technical Bulletin No 5: Design for High Intensity Redevelopment Projects

Managing the quality of stormwater runoff from redevelopment projects in highly urban watersheds can be complex and controversial.
Learn more…

Technical Bulletin No 4: Baywide Runoff Reduction Method

The objective of this memo is to provide the scientific basis for creating a workable engineering framework for runoff reduction and stormwater treatment practices.
Learn more…

Technical Bulletin No 3: Implications of the Impervious Cover Model

The Impervious Cover Model (ICM) was first proposed in 1994 as a management tool to diagnose the severity of future stream problems in urban subwatersheds.
Learn more…

Technical Bulletin No 2: Stormwater Design in the Coastal Plain
Aerial of Virginia marshes

Most stormwater practices were originally developed in the Piedmont physiographic region and have not been adapted for much different conditions in the coastal plain.
Learn more…

Technical Bulletin No 1: Stormwater Design Guidelines for Karst Terrain
Sinkhole in Karst Soiil

The karst terrain in the Bay watershed is distinct from some other regions in that the bedrock is very ancient and, in many areas, is deeply buried by residual soils.
Learn more…