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Water Resources

Kershaw County WWTP Expansion & Renovations

Kershaw County needed additional wastewater infrastructure due to significant growth and development in its western region. The County enlisted Davis & Floyd to provide master planning for extension of sewer service to developing areas of the county and prepare a Preliminary Engineering Report for upgrade and expansion of the Lugoff WWTP. The Lugoff WWTP was a 0.72 MGD, multi-cell aerated lagoon treatment system that discharged to the Wateree River. We planned for immediate upgrade and expansion of the plant to 2 MGD with ultimate expansion to 4 MGD and provided engineering support for additional facility upgrades after initial construction.

Solutions

Davis & Floyd worked with SCDHEC to establish discharge limits for the expanded facility and assisted the County in negotiating more favorable phosphorous limits for the WWTP. The project involved evaluating various wastewater treatment systems and configurations and found that installation of a SBR treatment system with continued use of the aerated lagoon for emergency wastewater storage was the most cost-effective alternative. The original WWTP construction included headworks with screening and vortex grit removal, SBR biological treatment with BNR capability, chlorine disinfection, and sludge digestion. Subsequent projects at the facility have included the emergency storage basin, septage receiving station, and lab facility. Additionally, we administered the County’s pretreatment program.

Services Provided

  • PER
  • Permitting
  • Design
  • Bidding
  • Construction Administration
  • SRF Funding Administration
  • Pretreatment