The general effluent standard for phosphorus as P in Section 304.123 does not apply to discharges from the City of Pana wastewater treatment plant. Instead these discharges must comply with an effluent limitation of 2.8 mg/L phosphorus as P as measured at the point of discharge.

(Source: Amended at 47 Ill. Reg. 4601, effective March 23, 2023)