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Manuals

Beginning March 1, 2008 all stormwater best management practices shall be designed in accordance with the latest edition of the NC DWQ Stormwater Best Practices Manual and with the Guilford County Addenda which together shall be known as the Water Quality Protection Manual.

Guilford County Addenda to DWQ Manual

To view the NC Division of Water Quality Stormwater BMP Manual go here.

   Storm Sewer Design Manual:
Storm Sewer Design Manual - First Edition
Storm Water Collection Systems
The Rational Method
SCS Peak Discharge Method
Pipe Sizing
Culvert Design
Open Channel Design
Development Ordinance
Design Requirements