Listed below are many of the documents from Gwinnett County that contain information concerning stormwater management. Many of these reports are also available at the Stormwater Plan Review Section office located at One Justice Square, 446 West Crogan Street in Lawrenceville. Please call 678.518.6000 if you have questions concerning any of these documents. Most of the documents listed below are in PDF format, thus Adobe Acrobat Reader is necessary to view the PDF files.

• Gwinnett County Stormwater Management Manual – effective date December 10, 2020

• Stormwater Quality Site Development Review Tool Documents
  • Excel Spreadsheet
  • User's Manual

• Gwinnett County Storm Sewer Pipe Standards - effective date May 1, 2018
  
  

• **Please note:   Development applications received on or after December 10, 2020, must meet the standards as established in the Gwinnett County Stormwater Management Manual and the Gwinnett County Storm Sewer Pipe Standards provided.

• Watershed Basin Maps
• Gwinnett County Code of Ordinances (Municode.com)