1. (1) Plumbing systems for allowed and permitted floodplain and floodway uses shall conform to the following conditions:

   1. (a) Sewer lines, except those to buried and sealed

      vaults, must have check valves installed to prevent sewage backup into permitted structures; and

   2. (b) All toilet stools, sinks, urinals, and drains must be located such that the lowest point of possible water entry is at least 2 feet above the elevation of the base flood.

Authorizing statute(s): Sec. 76-5-208, MCA

Implementing statute(s): Sec. 76-5-401 through 76-5-402, and Sec. 76-5-404 through 76-5-406, MCA

History: NEW, Eff. 9/4/74; AMD, 1989 MAR p. 1665, Eff. 10/27/89.