Total Phosphorus discharges would have to come down to 0.03 mg/L to meet all discharge requirements.


False. Class A-1 effluent requirements do not regulate phosphorus at all. 0.03 mg/L of TP is the criterion for the Gallatin River, but only during the nutrient season (July 1st – September 30th), and dilution credits can be claimed to meet this criterion at the end of a mixing zone.