Revised WDRs for Setton Pistachio and Porterville Citrus Terra Bella Processing Facilities

The Revised Waste Discharge Requirements (WDRs) issued by the Central Valley Regional Water Quality Control Board, Region 5 - Fresno, regulate the discharge of processing wastewater from the Setton Pistachio and Porterville Citrus facilities located at 9370 Road 234, Terra Bella, California. These requirements authorize the discharge of process wastewater specifically to existing ponds and irrigated agricultural lands. The regulations establish a maximum daily discharge of 3.0 mgd and a total annual discharge of 80 million gallons for pistachio process wastewater, while citrus process wastewater is limited to a maximum daily discharge of 0.08 mgd. The project is classified as a special notice under NAICS code 541620 and was formally processed in June 2026. According to the Notice of Exemption, the project is exempt from further CEQA review under categorical exemption 15301, as the revisions involve minor alterations to existing facilities without significant expansion. Administrative oversight is managed by Supervising Water Resource Control Engineer Alex Mushegan, with Fernando Rios serving as the manager for the facilities.