John Gefferth
Senior Mining Environmental Consultant at Barr Engineering Co
Based in St Charles, United States
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Seniority
Staff
Department
Other
Location
St Charles
Industry
Professional Services
Company size
1.1K
Contact information
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j•••••••@barr.com
Phone
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Background
About John Gefferth
Experienced solutions-oriented leader with a demonstrated history of working with federal…
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