(A) All moderate hazard facilities must have a double check valve assembly as a minimum containment device.
(B) Moderate hazard facilities include, but are not limited to: fire sprinkler systems without booster pump facilities or chemical additives; connections to tanks, lines and vessels that handle non-toxic substances; lawn sprinkler systems without chemical injection or, booster pumps; all industrial and most commercial facilities not identified as high hazard facilities.
(C) All single family residential homes will be considered a moderate hazard and shall have a minimum of a dual check valve device installed at the meter service or at the resident’s home.
(D) If no other backflow prevention assembly is specified a double check valve assembly must be installed on all private water systems.
(E) Only a backflow prevention assembly offering a greater degree of protection may be installed in place of a specified assembly required by this subchapter.
(Res. passed 9-11-2012)