NGWA - Study Questions - Augering & Monitoring Well Questions and Answers Graded A+
... geology. - Answers The primary item which dictates the type of drilling equipment to be used on a site
is...
... should include an auger head than can be machined to accent a plate that facilitates well installation
below the ground water level. - Answers The commonly used hollow-stem auger system for monitoring
well installations...
Mud pump. - Answers Which is NOT a component of a monitoring well rig?
4.25 in. - Answers What is the minimum size hollow-stem auger, casing, or borehole used for installation
of a typical 2-inch well?
Cable tool - Answers The best drilling method to use in a highly toxic contaminated limestone formation
that would produce the least fluid management would be?
... downgradient of a landfill to determine ground water contamination. - Answers Monitoring wells are
commonly installed...
Sand - Answers Which of the following is not an impermeable material?
... - Answers Due to the advanced technology, today's monitoring equipment and material...
Unconsolidated sediment transported by glaciers and disposed and deposited directly on land or sea. -
Answers Glacial drift is defined as...
Bentonite pellets. - Answers What type of material(s) is(are) typically on monitor wells for a seal above
the filter packs?
... air rotary with a down-hole hammer. - Answers The most efficient method of drilling a bedrock
monitoring well would be...
4-5 inches. - Answers The difference between the flight OD and the ID of a hollow-stem auger is
generally...
... drilling operations occur closer than the 100' safety zone from an electrical line. - Answers The safety
of operation of a hollow-stem auger drill rig is compromised when...
Inspection of cable, hoses, etc.
All fluid levels
First aid kit available - Answers Daily inspection of drilling equipment should include, but is not limited
to...
... minimize disturbance of subsurface materials - Answers The drilling method used to construct a
monitoring well should...
, ... keeps the augers from "sliding" back into the borehole when removing the augers from the borehole.
- Answers The "auger fork" is a device that slips through the flights of the auger column and...
... the area on-site that is potentially contaminated and where workers must wear PPE as stipulated in
the site specific health and safety plan. - Answers For drilling operations at a hazardous waste site, the
exclusion zone is...
... no drilling fluid is used, eliminating contamination by drilling fluid additives. - Answers An advantage
of using hollow-stem augers is...
... possible problems in controlling heaving sands. - Answers A disadvantage of using cable tool drilling
for monitoring wells is...
Hole in drop pipe
Cascading water
Plugged screen and cavitation - Answers Air in the discharge line of a recovery well system could be
caused by...
... high pH. - Answers Contamination from the cement grout leaking into the filter pack may be indicated
by...
... make sure no contamination leaves the site. - Answers Prior to leaving a hazardous waste site,
decontamination is done in order to...
Wash the sand out with approved water. - Answers What is the method for removing sand that has
entered the hollow-stem auger after you have drilled below the water table?
... encountered flowing sand. - Answers When the drill cuttings exceed the volume of the borehole while
hollow-stem auger drilling, you have usually...
... soil sampling is easy and accurate in most cases. - Answers Hollow-stem augers are commonly used to
install wells because...
... slot size matched to filter pack material. - Answers Proper screen selection for a ground water
monitoring well should include...
Using a Shelby tube and/or split spoon sampler. - Answers Of the methods listed, which is the best
method of obtaining soil samples during the drilling of a monitoring well?
1. Installed with great care to avoid contamination from the drilling process
2. Installed to protect the well from surface pollution.
3. Protected with secure well protective covers. - Answers Monitoring wells used to sample ground
water should always be...
... geology. - Answers The primary item which dictates the type of drilling equipment to be used on a site
is...
... should include an auger head than can be machined to accent a plate that facilitates well installation
below the ground water level. - Answers The commonly used hollow-stem auger system for monitoring
well installations...
Mud pump. - Answers Which is NOT a component of a monitoring well rig?
4.25 in. - Answers What is the minimum size hollow-stem auger, casing, or borehole used for installation
of a typical 2-inch well?
Cable tool - Answers The best drilling method to use in a highly toxic contaminated limestone formation
that would produce the least fluid management would be?
... downgradient of a landfill to determine ground water contamination. - Answers Monitoring wells are
commonly installed...
Sand - Answers Which of the following is not an impermeable material?
... - Answers Due to the advanced technology, today's monitoring equipment and material...
Unconsolidated sediment transported by glaciers and disposed and deposited directly on land or sea. -
Answers Glacial drift is defined as...
Bentonite pellets. - Answers What type of material(s) is(are) typically on monitor wells for a seal above
the filter packs?
... air rotary with a down-hole hammer. - Answers The most efficient method of drilling a bedrock
monitoring well would be...
4-5 inches. - Answers The difference between the flight OD and the ID of a hollow-stem auger is
generally...
... drilling operations occur closer than the 100' safety zone from an electrical line. - Answers The safety
of operation of a hollow-stem auger drill rig is compromised when...
Inspection of cable, hoses, etc.
All fluid levels
First aid kit available - Answers Daily inspection of drilling equipment should include, but is not limited
to...
... minimize disturbance of subsurface materials - Answers The drilling method used to construct a
monitoring well should...
, ... keeps the augers from "sliding" back into the borehole when removing the augers from the borehole.
- Answers The "auger fork" is a device that slips through the flights of the auger column and...
... the area on-site that is potentially contaminated and where workers must wear PPE as stipulated in
the site specific health and safety plan. - Answers For drilling operations at a hazardous waste site, the
exclusion zone is...
... no drilling fluid is used, eliminating contamination by drilling fluid additives. - Answers An advantage
of using hollow-stem augers is...
... possible problems in controlling heaving sands. - Answers A disadvantage of using cable tool drilling
for monitoring wells is...
Hole in drop pipe
Cascading water
Plugged screen and cavitation - Answers Air in the discharge line of a recovery well system could be
caused by...
... high pH. - Answers Contamination from the cement grout leaking into the filter pack may be indicated
by...
... make sure no contamination leaves the site. - Answers Prior to leaving a hazardous waste site,
decontamination is done in order to...
Wash the sand out with approved water. - Answers What is the method for removing sand that has
entered the hollow-stem auger after you have drilled below the water table?
... encountered flowing sand. - Answers When the drill cuttings exceed the volume of the borehole while
hollow-stem auger drilling, you have usually...
... soil sampling is easy and accurate in most cases. - Answers Hollow-stem augers are commonly used to
install wells because...
... slot size matched to filter pack material. - Answers Proper screen selection for a ground water
monitoring well should include...
Using a Shelby tube and/or split spoon sampler. - Answers Of the methods listed, which is the best
method of obtaining soil samples during the drilling of a monitoring well?
1. Installed with great care to avoid contamination from the drilling process
2. Installed to protect the well from surface pollution.
3. Protected with secure well protective covers. - Answers Monitoring wells used to sample ground
water should always be...
