If your home has an irrigation system, it is required to also have a backflow prevention assembly. A backflow prevention assembly is typically part of an irrigation system or commercial property.
A backflow prevention device prevents hazardous substances from inadvertently being drawn into the drinking water system, contaminating it.
All backflow prevention devices must be tested by an approved tester. See a List of Approved Testers(PDF, 140KB) - (updated periodically and sorted by zip codes to find one near you for your convenience. You may select any approved tester to perform the test, all vendors can test within Mecklenburg County).
Mark T. Bullins Environmental Compliance Manager Backflow Prevention Mark.Bullins@charlottenc.gov 704.432.5800