Boonville Type of protection required ordinance (§ 21-42.25)

(a) The type of protection required by this division shall depend on the degree of hazard which exists, as follows:

(1) An approved air gap separation shall be installed where the public potable water system may be contaminated with substances that could cause a severe health hazard. (2) An approved air gap separation or an approved reduced pressure principle backflow prevention assembly shall be installed where the public potable water system may be contaminated with a substance that could cause a system or health hazard.

(3) An approved air gap separation or an approved reduced pressure principle backflow prevention assembly or an approved double check valve assembly shall be installed where the public potable water system may be polluted with substances that could cause a pollution hazard not dangerous to health.