(1) The department may approve alternative disinfection methods when the license holder or facility operator has demonstrated that the alternative method:

(a) provides a readily measurable residual;

(b) is equally effective in disinfecting water as the chlorine or bromine concentrations set in these rules;

(c) has been shown to not be dangerous to public health; and

(d) is approved for use as a disinfectant by the Environmental Protection Agency (EPA).

(2) Department approval must be obtained prior to using any other such disinfectant method.