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Architecture & Engineering


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October 12, 2005

Hart Crowser

mug
Heffner
Chemical and environmental engineer Dave Heffner has rejoined Hart Crowser's Seattle office. Heffner has 20 years of experience on remediation projects, including Superfund sites at the Duwamish Waterway and Commencement Bay. He is working on the sites of two former drycleaners and what had been a facility to distribute petroleum products. Hart Crowser is an environmental and engineering consulting firm headquartered in Seattle.




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