NEBRASKA NATURAL RESOURCES
GROUND WATER TECHNICIAN EXAM
2026 2027 NRGWT STUDY GUIDE
PRACTICE QUESTIONS AND ANSWERS
contour line - CORRECT ANSWERS -Line on a
topographic map that connects points of equal
elevation; shows differences in elevation and are
based on benchmarks
chain of custody - CORRECT ANSWERS -Procedure
of keeping track of who is in charge of samples and
when - maintains identity and integrity of samples
,- day/time of the sample, where it was taken, who
took the sample, what preservation was used, and
who else had access to the sample (delivery service,
lab personnel, etc.)
Piezometer - CORRECT ANSWERS -Small diameter
well with a very short screen or pipe open at the
bottom, usually used to measure the elevation of the
water table.
Static water level - CORRECT ANSWERS -Elevation
of the top of a column of water in a monitoring well
or Piezometer that is not influenced by pumping or
, conditions related to well installation, hydrologic
testing, or nearby pumping.
PPB - CORRECT ANSWERS -Parts Per Billion?
What is the recommended flowmeter installation
distance when chem valve is upstream - CORRECT
ANSWERS -5-10 PDs of unobstructed pipe: vanes
recommended. 5PDs: Vanes required. You need at
least 1.5 PDs with a FS100 flow straightener.
Otherwise only with permission.
GROUND WATER TECHNICIAN EXAM
2026 2027 NRGWT STUDY GUIDE
PRACTICE QUESTIONS AND ANSWERS
contour line - CORRECT ANSWERS -Line on a
topographic map that connects points of equal
elevation; shows differences in elevation and are
based on benchmarks
chain of custody - CORRECT ANSWERS -Procedure
of keeping track of who is in charge of samples and
when - maintains identity and integrity of samples
,- day/time of the sample, where it was taken, who
took the sample, what preservation was used, and
who else had access to the sample (delivery service,
lab personnel, etc.)
Piezometer - CORRECT ANSWERS -Small diameter
well with a very short screen or pipe open at the
bottom, usually used to measure the elevation of the
water table.
Static water level - CORRECT ANSWERS -Elevation
of the top of a column of water in a monitoring well
or Piezometer that is not influenced by pumping or
, conditions related to well installation, hydrologic
testing, or nearby pumping.
PPB - CORRECT ANSWERS -Parts Per Billion?
What is the recommended flowmeter installation
distance when chem valve is upstream - CORRECT
ANSWERS -5-10 PDs of unobstructed pipe: vanes
recommended. 5PDs: Vanes required. You need at
least 1.5 PDs with a FS100 flow straightener.
Otherwise only with permission.
