PROJECT PROFILE D’Appolonia was retained by the Bur- gettstown Area School District to per- form a geotechnical exploration for the design and construction of a major ad- dition to the Burgettstown Middle School/High School building. Our ex- ploration program and preliminary evaluations included review of docu- ments related to previous backfilling of abandoned coal mine workings located 60 to 70 feet below the site; review of constructi

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