(a) When the limits in a categorical pretreatment standard are expressed only in terms of mass of pollutant per unit of production, the Authority may convert the limits to equivalent limitations expressed as mass of pollutant discharged per day of effluent concentration for purposes of calculating effluent limitations applicable to industrial users pursuant to the procedure set forth in 40 C.F.R. Part 403.6(c).
(b) Equivalent limitations calculated in accordance with this section shall be deemed pretreatment standards for the purposes of § 307(d) of the Act and this chapter. Industrial users will be required to comply with the equivalent limitations in lieu of the promulgated categorical standards from which the equivalent limitations were derived.
(Ord. 1991-239, passed 12-2-1991)