Decommission and Remediate Former 1,264 MW Coal Combustion Power Plant

Location: Northeast Florida
Project Value: $15.2 Million

 

This project was awarded to LWR in 2018 to decommission and remediate a
two unit coal and coke combustion plant in northeast Florida.

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The plant was jointly owned and operated from 1988 to 2018 under a private partnership between a major utility company in Florida and large city electrical authority. LWR is responsible for stabilization, remediation, closure, final grading, and restoration of all components associated with coal combustion residuals (CCR), civil infrastructure, and underground utilities spanning 330 acres of plant property. Final grading and restoration is expected to conclude in mid-2020

  • Closure and tracking of 125 stormwater and wastewater catch basins
  • Development of multiple off-site import fill sources
  • Reconstruction of two State regulated outfall structures
  • Responsible for State-level permitting and reporting for all dewatering
  • 330 acres of SWPPP management including concentrated industrial flow
    adjacent to a major recreational wetland
  • Removal in excess of 530,000 CY of plant waste and CCR
    Replacement of CCR fill with 450,000 CY of clean imported fill
  • Stabilization and preparation and haul of landfill materials including metal waste basin sludges, coal fines, gypsum by-product, and impacted concrete wastes
  • Remediation, stabilization and closure of 11 CCR surface impoundments
  • Utilizing a 270 well-point dewatering system for a four-acre pond expansion
  • Responsible for leading recycling efforts utilizing clean crushed concrete
    as a value-added backfill product for up to 100,000 tons
  • Removal and replacement of 4200 LF of 11 FT diameter coolant water
    lines with 12,000 CY of backfill
  • No LT or Recordables to date