When installing an irrigation system, residential customers in Charlotte-Mecklenburg are required to install and maintain a backflow prevention assembly on their water line to ensure the safety of the surrounding community.

• Residential customers who are planning to install a backflow prevention assembly for their irrigation system must either be a licensed plumber in North Carolina or must obtain approval from Mecklenburg County. A plumbing permit is required for the backflow installation.  

  For Permitting Information: Land Use & Environmental Services Agency (LUESA)

• Commonly Requested Documents, Information & Requirements

• Click here for information on installation and inspection request.  (Backflow Installation Checklist)
  
  
• Contact Backflow Prevention by email or call 704/399-2426 to find out what type of assembly your project will require.  For detail installation criteria, please refer to our Industrial & Commercial Page.
  
  
• The backflow prevention assembly must be tested by a Utilities-approved and certified tester upon installation and annually thereafter.

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