Tenders Are Invited For Project Sponsorship Dortmund Ii - Exploratory Drilling In Clarenberg

Gelsenwasser Ag Intends To Renew The Sewer On “Clarenberg” Street In Dortmund-Hörde As Part Of A So-Called Project Sponsorship. As Part Of A Mine Inspection, It Was Determined That Mining Was Taking Place In The Area Under Investigation. In Addition, The Clarenberg Tunnel, Which Is Said To Be Connected To Several Air Shafts, Probably Runs In The Area Under Investigation. In 2012, Undocumented Old Mining Was Drilled In The Southern Study Area As Part Of An Exploratory Measure And Then Rehabilitated. In Order To Determine Whether There Are Cavities Or Loose/Soft Zones In This Area At A Depth Relevant To The Impact, Full Crown Boreholes Should Be Sunk.