Detroit Faces Significant Costs Over Contaminated Backfill at Demolition Sites
Detroit is spending an average of $36,000 per site to remove and replace contaminated backfill dirt at over 100 demolition sites. This issue stems from a contractor, Gayanga Co., now under federal investigation for allegedly using contaminated soil sourced from…
Detroit, MI, July 22, 2026 —
Detroit is incurring substantial costs, averaging $36,000 per site, to address contaminated backfill dirt at more than 100 demolition locations across the city. The issue has necessitated the removal and replacement of the soil to ensure compliance and safety standards.
The source of the contamination is reportedly linked to contractor Gayanga Co., which is currently under federal investigation. Allegations suggest that the company may have utilized contaminated soil sourced from the Northland Mall redevelopment project as backfill material at various city demolition sites.
In response to this developing situation, the city of Detroit has taken steps to prevent similar issues from arising in the future. New protocols have been implemented, focusing on stricter testing procedures and more rigorous sourcing practices for all fill materials used in city projects. These measures aim to guarantee the integrity and safety of the materials being utilized.
The full extent of the financial impact and the timeline for the remediation efforts are ongoing. Further details regarding the federal investigation into Gayanga Co. have not been publicly released.
Story summarized from the original created by Christine Ferretti on www.bridgedetroit.com, see more information here.
