CONTENTS 



Page 



Preface g 



Introduction ii 



Topography and Drainage ii 



History of the Project — by Robert A. Cairns, City Engineer, 



Waterbury 13 



General Geology . .16 



The Hartland Schist 19 



Structure 22 



Faults 24 



Metamorphism of the Hartland Schist 24 



The Berkshire Schist 26 



The Brookfield Diorite , . 28 



The Schist Inclusions in the Diorite 31 



The Mount Tom Hornblende Gneiss 32 



The Thomaston Granite Gneiss 33 



Buried Surface Features Exposed by the Tunnel and the Diamond 



Drill Holes . 35 



Pre-Pleistocene Weathering Preserved South of Mount Prospect . 35 



The Pre-Glacial Surface under the North End of Bantam Lake . 35 



Summary 36 



Bibliography 37 



1 4fi^44 



