Twelve Mile Creek WWTP – 7.5 MGD Expansion

  • Value: $36,367,000
  • Started: 2016
  • Completed: 2020
  • Location: Union County, NC
  • Owner: Union County
  • Engineer: Hazen & Sawyer / CDM Smith

Project Description

Expansion of the existing Twelve Mile Creek WWTP increasing plant capacity to 7.5 MGD. Modification of existing Influent Screening Structure, Construction of new Grit Removal Facility, Distribution Structure, Odor Control Facility, Blower Building, Conversion of existing oxidation ditches to diffused aeration tanks, Modifications to Effluent Filter tanks and Effluent Water Pumping Station, Construction of new UV Disinfection Facility, Cascade Aerator, Solids Handling Building, Modification to existing Digesters. Other work includes Process and Chemical Piping, Electrical and Instrumentation systems to support new facilities.

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