R18-9-B206. Treatment Performance Requirements for Expansion of a Facility

For an expansion of a sewage treatment facility, the BADCT shall conform with the following: 1. New facility BADCT requirements in R18-9-B204 apply to the following expansions: a. An increase in design flow by an amount equal to or greater than the increases specified in R18-9- A211(B)(2)(b); or b. An addition of a physically separate process or major piece of production equipment, building, or structure that causes a separate discharge to the extent that the treatment performance requirements for the pollutants addressed in R18-9-B204 can practicably be achieved by the addition. 2. BADCT requirements for existing facilities established in R18-9-B205 apply to an expansion not covered under subsection (1).