If there is a concern of boulders at a certain site, it may be better to drill an _________
The borehole shall not penetrate to a depth greater than the depth at which injection will occur
The well head shall be equipped with a screened vent to allow for the pressure changes within the well unless:
Casing in wells constructed to obtain water from an unconsolidated rock formation (such as gravel, sand, or shells) shall extend at least ______ ft into the top of the water-bearing formation
What are ways the grout can be forced into a space when gravity may not be practical: