Project Facts

  • While CMS Land Company did not create the cement dust piles and is no longer a partner in Bay Harbor, it agreed in 2004 to address the current environmental concerns
  • The work completed by CMS Land at East Park and the Bay Harbor development has significantly improved environmental conditions
  • CMS Land has spent about $180 million on the environmental project since 2004 on remediation actions
  • The initial focus of this project was the high alkalinity (pH) of the water moving through the buried dust piles at East Park and the Bay Harbor development. The regulatory agencies set a pH standard of 9.0
  • The collection system that CMS Land has installed at the affected areas is performing well with readings routinely less than pH 9.0
  • The collected water also contains trace amounts of mercury. The environmental work has reduced the amount of mercury going into the lake significantly
  • The trace amount of mercury contained in the water collected at the site is less than a tenth of what the government considers safe for drinking water
  • CMS Land submitted updated versions of the Remedial Investigation and Alternatives Evaluation (RI/AE) reports to the U.S. Environmental Protection Agency (EPA) and the Michigan Department of Environmental Quality (MDEQ) in December 2010
  • These documents contain more than six years of site investigation and installed remedy performance information. ┬áThe AE contains the proposed final remedies for the project
  • The EPA approved the RI/AE for East Park on April 19, 2011 and for Bay Harbor on May 9, 2011
  • CMS Land and the MDEQ reached an agreement on June 13, 2012 that establishes the final remedies and future remedy performance standards for the site. The agreement transferred project oversight to the MDEQ from the EPA