The hollow-stem auger system for monitoring well installations should include an auger head that can be machined to accept a plate to facilitate installation below the groundwater level.

• A. True
• B. False
• C. Not specified
• D. Not applicable

Answer: (A)

When installing monitoring wells with a hollow-stem auger, you need a dependable way to place and seat the casing and screen below the water table. An auger head that can be machined to accept a plate gives a solid, flat interface to attach a drive plate or casing support. This plate distributes load, helps keep the casing aligned as you advance and install components below groundwater, and provides a stable surface to push and seat the well without damaging the auger head or the well parts. It also aids in controlling the borehole condition and allows a cleaner transition from drilling to placement. For these reasons, including a machined-plate-ready auger head is standard practice, so the statement is true.