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karst consulting, sinkhole investigation, geologists, hydrogeologists, geophysicists specializing in karst and sinkhole investigation, geotechnical, ...
Dr. Barry F. Beck  groundwater tracing  karst and sinkholes  karst consulting  karst geophysics  karst terrane  landfill and karst  sinkhole collapse  sinkhole flooding  waste disposal and karst 
www.pela-tenn.com - 2009-02-12
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George Weber is an environmental consultant with 28 years of experience in environmental policy analysis, planning, and implementation; natural resource ...
www.gwenvironmental.com - 2009-02-06
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