Does air blown dust from the dredged piles stored along Swift Creek pose a health threat?
EPA has placed a substance called a “soil tackifier” on the dredged sediment piles along Swift Creek. This acts like a glue on the soil and reduces the amount of windblown dust and asbestos released from the piles. As a result, the health threat is also reduced. However, when the sediment piles are disturbed by foot traffic or motor vehicles the “soil tackifier” becomes less effective. There is no tackifier on Sumas River sediments and flood deposits.
