Geotechnical Engineering Report Addendum No 1 Results of Testing 01 29 2025 submission

SUBSURFACE EXPLORATION PROCEDURE: TEST PIT EXCAVATION A test pit is an excavation of subsurface materials to characterize the composition and rippability/excavation efforts. Test pit exploration allows observation of the boundary relationships within a soil and rock profile and is useful to identify existing fill composition, disturbed material or the depth of soft sediments. Both track mounted excavators and backhoes are used in a variety of ground conditions allowing for difficult terrain to be accessed. The excavation process also provides access for in-situ and field testing and acquisition of samples for laboratory testing. TEST PIT Procedure:  Involves excavation subsurface material to observe composition and physical characteristics  Recording the approximate depth of subsurface strata  Excavation is continued as prescribed or to limits of equipment and subsurface conditions  The exploration is typically carried out with an excavator or backhoe, with the depth dependent on machine size and ground