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WELL CONTRACTORS CERTIFICATION CONSTRUCTION STANDARDS QUIZ1
42c59aeb-7537-4e91-aec4-488bd79053d5
Chlorine shall be placed in the well in sufficient quantities to produce a chlorine residual of at least:
200ppm
500ppm
50ppm
100 ppm
Why is development work important for water wells
Corrects damage to or clogging of formation
Increases porosity of the natural formation
Stabilizes the sand formed around the screen
All of the above
In hydraulic rotary drilling, borehole is cut with a rotating bit while cuttings are removed with ____
Air hose
Additional drilling
Drilling fluid
None of the above
The 6ft telescope size of screen should fit in a ______ standard pipe.
8 in
6 in
12 in
10 in
The well identification plate must be permanently placed:
Above ground portion of the well casing
On the wall of the well house
Surface grout pad
A or B
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