Mississippi Administrative Code
Title 15 - Mississippi Department of Health
Part 20 - Bureau of Public Water Supply
Subpart 72 - Public Water Supply
Chapter 1 - MISSISSIPPI PRIMARY DRINKING WATER REGULATION
Subchapter 11 - Installation of Backflow Preventers
Rule 15-20-72-1.11.4
If the public water system determines that the cross connection is a low hazard cross connection, it shall be eliminated or protected by the property owner by installing an appropriate backflow preventer by June 30, 2004. If an existing low hazard cross connection is identified by a public water system after June 30, 2004, the cross connection shall be eliminated or protected by the property owner by installing an approved backflow preventer within one (1) year of written notification by the public water system. If the property owner has an existing backflow preventer, the public water system shall consider the backflow preventer approved and shall allow the installed backflow preventer to remain in place until the backflow preventer fails to function properly.
Miss. Code Ann. § 41-26-14