NGWA Augering & Monitoring Well EXAM COMPLETE NEWEST QUESTIONS AND VERIFIED SOLUTIONS LATEST UPDATE THIS YEAR

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NGWA Augering & Monitoring Well EXAM
COMPLETE NEWEST QUESTIONS AND
VERIFIED SOLUTIONS LATEST UPDATE
THIS YEAR


QUESTION: What is the minimum size hollow-stem auger, casing, or borehole used for

installation of a typical 2-inch well? - ANSWER-4.25 in.




QUESTION: The best drilling method to use in a highly toxic contaminated limestone formation

that would produce the least fluid management would be? - ANSWER-Cable tool




Q; The primary item which dictates the type of drilling equipment to be used on a site is... -

ANSWER-... geology.




QUESTION: The commonly used hollow-stem auger system for monitoring well installations... -

ANSWER-... should include an auger head than can be machined to accent a plate that

facilitates well installation below the ground water level.




QUESTION: Which is NOT a component of a monitoring well rig? - ANSWER-Mud pump.


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QUESTION: Monitoring wells are commonly installed... - ANSWER-... downgradient of a landfill

to determine ground water contamination.




QUESTION: Which of the following is not an impermeable material? - ANSWER-Sand




QUESTION: Due to the advanced technology, today's monitoring equipment and material... -

ANSWER-...




QUESTION: Glacial drift is defined as... - ANSWER-Unconsolidated sediment transported by

glaciers and disposed and deposited directly on land or sea.




QUESTION: What type of material(s) is(are) typically on monitor wells for a seal above the filter

packs? - ANSWER-Bentonite pellets.




QUESTION: The most efficient method of drilling a bedrock monitoring well would be... -

ANSWER-... air rotary with a down-hole hammer.




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