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Polluted canal

Environmental trusts

Our cost allocation model saves millions and heads off legal battles in canal cleanup

20 potentially responsible parties

involved in cleanup

$90 million

approx. design costs that we helped allocate


  • Haley & Aldrich was hired to develop an evidence-based way to determine how to allocate millions in costs related to remediating a canal in a major U.S. city.
  • We heard evidence from each of the potentially responsible parties’ lawyers and scientists and condensed large amounts of data related to pollution at the site, maintaining neutrality as each party fought for its own interests.
  • We then developed an allocation model by applying an innovative five-step framework that quantitatively linked facilities, and, therefore, responsible parties, to contamination in the canal.
  • Our work headed off costly, time-consuming legal disputes between the parties and contributed to the revival of the neighborhood around the canal — once one of the country’s most polluted waterways.

For more information, contact:

David Hagen

Principal Consultant, Hydrogeology