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WELL CONTRACTORS CERTIFICATION CONSTRUCTION STANDARDS QUIZ1
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A compressor used for air surging a well should be capable of developing a maximum pressure of between __________ psi and ___________ psi>
75, 100
80, 120
100, 150
200, 300
None of the above
Chlorine shall be placed in the well in sufficient quantities to produce a chlorine residual of at least:
200ppm
500ppm
50ppm
100 ppm
After chlorination, how long should the well be pumped before placing the well back into use:
Chlorine tested at 50ppm in water
Until water changes color
When water changes temperature
No detectable chlorine is found
Where in the space should the introduction of grout occur first:
Top fo the space
Bottom of the space
Middle of the space
Outside the casing
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
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