1. Backflow prevention assemblies for containment shall be installed immediately following the water meter or as close to that location as deemed practical by the City.
2. A water service determined to present a high hazard shall be protected by an air gap or an approved reduced-pressure principle backflow prevention assembly.
3. A water service determined to present a low hazard shall be protected by an approved double check valve assembly, or an assembly approved in subsection 2. above.