Walterboro WWTP Expansion 1 & 2

Harper was chosen as the Design-Bid-Builder of the Walterboro Wastewater Treatment Plant expansion. The expansion will transform the existing 2.64 MGD WWTP to 5.625 MGD. The expansion includes a new screening chamber, in IPS. Harper will also install a new grit removal system, expand and improve the existing SBRs, new tertiary filters, new UV disinfection, and new cascade post aeration. The existing flow EQ basin will be repurposed to an aerobic digester, new sludge screw press, new septage removal system, new paving, and improvements to existing admin areas.