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Butner, NC. December 15, 2025 - The South Granville Water and Sewer Authority announced that the Filter Media Replacement Program is currently underway at the Water Treatment Plant. This project is part of a phased program to strengthen reliability, support continual improvement, and protect water quality for Granville County residents. What is filter media? Filter media is the layered granular material inside SGWASA’s water treatment filters that water passes through to re