Allows wastewater permittees under GS 143-215.1(f3) to calculate wastewater flows for new dwelling units that discharge to wastewater systems serving two or more dwelling units that have yet to be connected at a flow rate less than 75 gallons per day per bedroom with approval from the Department of Environmental Quality (DEQ). Requires DEQ approval to be based on permittee’s demonstration that the calculated flow rate corresponds to average actual flow during the last calendar year and that such flow rate will not adversely impact public health or the environment. Prohibits DEQ from approving flow rates for new dwelling units calculated to be less than 55 gallons per day per bedroom. Makes conforming changes.

Appropriates $10,000 for 2026-27 from the General Fund to DEQ to review wastewater design flow rates proposed by permitted wastewater treatment systems in accordance with the act.

Effective July 1, 2026.