Dutton Corporate Centre

 SERVICES PROVIDED

Soil & Groundwater Investigations
Site Remediation
Real Estate Assessments & Due Diligence
Brownfield Redevelopment
Solid Waste Landfill Services

PROJECT DESCRIPTION

ERG personnel performed due diligence and remediation services for the Brownfield redevelopment of the former Sanicem landfill site and adjoining property.  The proposed site uses were planned to be a high technology office and industrial park.

The site consists of approximately 145 acres in Oakland County, Michigan.  The landfill was never lined or capped, nor were adequate leachate collections or methane venting systems installed.  The landfill ceased operations in the early 1980’s.  Based on the results of the preliminary due diligence study, it was determined that the site would be suitable for redevelopment, provided the appropriate remedial measures and due care obligations were instituted.  An Act 381 Work Plan was prepared and approved by the State of Michigan.  The Work Plan included landfill gas control, venting design and implementation; design and implementation of structure protection against the accumulation of landfill gas; leachate collection and treatment design and implementing; remedial investigations and due care plans; land balancing and capping; contaminated soil removal and disposal; geotechnical controls; and O&M.

ERG operated and maintained the leachate pretreatment system.  ERG conducted leachate discharge monitoring in accordance with a Detroit Water and Sewer Department (DWSD) wastewater permit. The DWSD permit required semi-annual self-monitoring reports, semi-annual sampling the system following the accepted time weighted application, and annual site meeting with DWSD personnel. 

ERG also operated and maintained the landfill gas recovery system. On a quarterly basis, ERG collected gas monitoring data and reported reported on the results, summarizing vacuum influence at monitoring locations.  ERG submitted the gas monitoring reports to various departments within the Michigan Department of Environmental Quality. As needed, ERG re-balanced the landfill gas system, to distribute venting to the areas where it was necessary.