Thermoplastic casing shall not be driven by impact, but may be pushed
Air rotary drilling is when air is circulated through the drill pipe, through ports in the drill bit and upward in the _____ space around the drill pipe
The well head shall be equipped with a screened vent to allow for the pressure changes within the well unless:
Neat cement grout shall consist of a mixture of not more than ______gallons of clear, potable water to _____94 pound bag of Portland cement
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