. "Appendix A: Use of Consequence-Frequency Assessment to Evaluate Performance of an Advanced Wastewater Treatment Facility." Issues in Potable Reuse: The Viability of Augmenting Drinking Water Supplies with Reclaimed Water. Washington, DC: The National Academies Press, 1998.
ratio of the effluent to influent concentration; however the conditional framework (as shown in Figure A-2) provides a more general approach Formally the probability distribution of the product concentrations may be evaluated as a multiple integral, which can (for the indicated process train) be written as (Stuart and Ord, 1987)