We Are Open For Business – HGI COVID-19 Update hydroGEOPHYSICS (HGI) is open for business and will remain operating at this time. We are taking all possible measures to enhance the safety and health of our employees and clients while maintaining the exceptional...
hydroGEOPHYSICS, Inc. (HGI) was purchased by Columbia Energy & Environmental Services, Inc. (Columbia Energy) in November of 2009. Columbia Energy and HGI had been teaming partners, since 2004, for project work performed on the DOE Hanford Nuclear Reservation,...