Description
1 When is the Inference of Migration Reasonable? Michigan Part 201 Notice of Migration Rules require that owners and operators of a facility must notify the Michigan DEQ and all affected parties within 45 days of having a reason to believe that a hazardous substance(s) has or may have migrated offsite and is still present in any medium (soil, groundwater, or surface water) at a concentration that exceeds generic residential criteria. Notification must include (according to Form EQP 4482, items 6...

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