WATER WELL DRILLERS AND INSTALLERS REGULATORY
EXAM WITH GRADED ANSWERS
What must the well casing in bucket well construction be
connected to? - answer-It must be firmly embedded in or
connected to a pipe with a minimum of two inches inside
diameter, cast in a reinforced buried concrete slab, or attached
to a NSF certified fiberglass cap.
What is required for the borehole annulus in a well constructed
in an unconsolidated aquifer? - answer-It must be pressure
grouted with neat cement or a bentonite slurry from the top of
the gravel pack to the ground surface or to four feet below the
ground surface if a pitless adapter is installed.
What is the maximum height the gravel pack can extend above
the top of the well screen? - answer-The gravel pack shall not
extend more than ten feet above the top of the well screen
unless otherwise approved.
Which types of wells are exempt from the regulations stated in
the document? - answer-Monitoring wells, dewatering wells, and
public water supply wells.
,What governs the installation of a public water supply well? -
answer-The installation is governed by 327 IAC 8-3.4.
What is the minimum depth for the well casing in bucket well
construction? - answer-The well casing shall terminate not less
than ten feet below the ground surface.
What material is used to fill the annular opening between the
well casing and the well bore? - answer-Washed graded gravel
from the bottom of the well to the concrete slab or fiberglass.
What is required for sealing the annulus in bucket well
construction? - answer-The annulus must be sealed with
concrete or granular, pelletized, or coarse grade crushed
bentonite at least six inches thick.
What is the minimum inside diameter of the borehole for a
bucket well? - answer-The borehole must be at least two inches
larger than the outside diameter of the lining or well casing.
, What is the minimum depth for the watertight lining of a bucket
well? - answer-It must extend at least five feet below the ground
surface.
What materials can be used for the annulus sealing in bucket
wells? - answer-Neat cement, bentonite slurry, or granular,
pelletized, medium grade, or coarse grade crushed bentonite.
What thickness must the reinforced cover slab be for a bucket
well? - answer-At least four inches thick.
What should the top of the slab or fiberglass cap be designed to
do? - answer-It should be sloped to drain to all sides.
What is required if a manhole is installed in bucket well
construction? - answer-The manhole must have a metal curb
cast in the concrete slab extending four inches above the slab.
What is the purpose of slotted fiberglass well casing? - answer-
To allow for the transmittance of water into the well.
EXAM WITH GRADED ANSWERS
What must the well casing in bucket well construction be
connected to? - answer-It must be firmly embedded in or
connected to a pipe with a minimum of two inches inside
diameter, cast in a reinforced buried concrete slab, or attached
to a NSF certified fiberglass cap.
What is required for the borehole annulus in a well constructed
in an unconsolidated aquifer? - answer-It must be pressure
grouted with neat cement or a bentonite slurry from the top of
the gravel pack to the ground surface or to four feet below the
ground surface if a pitless adapter is installed.
What is the maximum height the gravel pack can extend above
the top of the well screen? - answer-The gravel pack shall not
extend more than ten feet above the top of the well screen
unless otherwise approved.
Which types of wells are exempt from the regulations stated in
the document? - answer-Monitoring wells, dewatering wells, and
public water supply wells.
,What governs the installation of a public water supply well? -
answer-The installation is governed by 327 IAC 8-3.4.
What is the minimum depth for the well casing in bucket well
construction? - answer-The well casing shall terminate not less
than ten feet below the ground surface.
What material is used to fill the annular opening between the
well casing and the well bore? - answer-Washed graded gravel
from the bottom of the well to the concrete slab or fiberglass.
What is required for sealing the annulus in bucket well
construction? - answer-The annulus must be sealed with
concrete or granular, pelletized, or coarse grade crushed
bentonite at least six inches thick.
What is the minimum inside diameter of the borehole for a
bucket well? - answer-The borehole must be at least two inches
larger than the outside diameter of the lining or well casing.
, What is the minimum depth for the watertight lining of a bucket
well? - answer-It must extend at least five feet below the ground
surface.
What materials can be used for the annulus sealing in bucket
wells? - answer-Neat cement, bentonite slurry, or granular,
pelletized, medium grade, or coarse grade crushed bentonite.
What thickness must the reinforced cover slab be for a bucket
well? - answer-At least four inches thick.
What should the top of the slab or fiberglass cap be designed to
do? - answer-It should be sloped to drain to all sides.
What is required if a manhole is installed in bucket well
construction? - answer-The manhole must have a metal curb
cast in the concrete slab extending four inches above the slab.
What is the purpose of slotted fiberglass well casing? - answer-
To allow for the transmittance of water into the well.
