MGP SITE REMEDIATION

PROJECT HIGHLIGHT

Albion MI

FORMER MGP SITE REMEDIATION
​ALBION, MI

  • Dredging of 8,900 cy of MGP tar-impacted sediment
  • Dewatering and off-site transportation
  • Water treatment filtration system and testing
  • 100% compliant to NPDES permits
  • Multiple stakeholder project involving the Michigan Department of Environmental Quality, Michigan Department of Natural Resources, and the City of Albion

 

Great Lakes E&I performed remediation services at this former manufactured gas plant (MGP) in Kalamazoo, providing removal and disposal of the impacted sediments. Great Lakes E&I’s assessment of the requirements identified some risks that were mitigated in the work approach, including potential for over-dredging which would increase dewatering, water treatment, and landfill costs. This was mitigated through a combination of vacuum and mechanical dredging systems which incorporated state-of-the-art on-board dredging controls and post-dredge monitoring equipment.
 
The North Eaton Street Bridge presented unique challenges to this project with limited available head room beneath the bridge creating access restrictions. Great Lakes E&I’s patented Sed-Vac system proved to be an effective dredging method to deal with the height restrictions of the bridge, and allowed for safe removal of material from utilities.
 
A diver was used when dredging near utility lines providing real-time observation and direction of the removal activities. Great Lakes E&I also used a diver during back filling operations around the utilities.Great Lakes E&I’s extensive experience providing remediation of the Kalamazoo River and other similar rivers led us to propose a change in the turbidity curtain layouts provided by the Client which provided a more effective design. Major elements of the work scope included:
 

  • Dredging, stabilization, dewatering, waste transportation and waste disposal services for the targeted sediment
  • Site restoration
  • Installation of fish barriers and relocation of amphibious wildlife
  • Suspended sediment controls, absorbent booms, and dust control 
  • Implementation of MOTs for public vehicle traffic and detours for pedestrians and cyclists
  • Precision removal guided through use of tilt sensors and RTK/GPS