1. What is the primary purpose of New Jersey’s well drilling
regulations? To protect public health, safety, and the environment
2. Who issues the New Jersey Well Driller’s License? New Jersey
Department of Environmental Protection (NJDEP)
3. What must a driller obtain before constructing a potable water well in
New Jersey? A well permit from NJDEP
4. How often must a New Jersey drilling license be renewed? Every two
years
5. What is the minimum required setback from a septic tank for a
potable water well? 50 feet
6. Which type of well requires the driller to file a Well Record Report?
All wells drilled in New Jersey
7. What continuing education requirement exists for geothermal well
drillers in New Jersey? Annual renewal with proof of continuing
education
8. What is the required casing material for vertical closed loop wells?
High-density polyethylene (HDPE)
9. What is the minimum borehole depth for a VCLG system in NJ?
Determined by site-specific thermal load calculations
10.What is the penalty for drilling without a valid license in NJ? Fines
and possible revocation of certification
11.What is the minimum setback distance from a property line for a
vertical closed loop well? A: 10 feet
12.Which agency regulates geothermal drilling activities in New Jersey?
A: NJDEP (New Jersey Department of Environmental Protection)
13.What type of grout is typically used to seal vertical closed loop
boreholes? A: Bentonite-based grout
,14.What is the purpose of grouting a borehole in a VCLG system? A:
To prevent groundwater contamination and maintain thermal
conductivity
15.How deep can a vertical closed loop borehole be without triggering
additional NJDEP review? A: Up to 500 feet
16.What document must be submitted after completing a geothermal
well installation? A: Well Record Report
17.What is the required diameter for a typical VCLG borehole? A: 4
to 6 inches
18.Which pipe material is approved for geothermal loop installations in
NJ? A: High-Density Polyethylene (HDPE)
19.What is the minimum pressure rating for HDPE pipe used in
geothermal loops? A: 160 psi
20.What is the primary environmental concern during geothermal
drilling? A: Groundwater contamination
21.What is the recommended method for loop pipe fusion? A: Butt
fusion or socket fusion
22.How often must drilling equipment be inspected for safety
compliance? A: Before each job and monthly
23.What is the penalty for falsifying well records in NJ? A: License
suspension or revocation and fines
24.What is the required setback from a stream or surface water body?
A: 100 feet
25.What is the maximum number of boreholes allowed per acre without
special approval? A: 25 boreholes
26.What is the required depth for loop burial in horizontal geothermal
systems? A: Minimum 4 feet
27.Which certification is required for fusion technicians in NJ? A:
IGSHPA or equivalent fusion certification
28.What is the purpose of a thermal conductivity test? A: To determine
the heat transfer efficiency of the ground
29.What is the minimum bend radius for HDPE pipe? A: 25 times the
pipe diameter
30.What is the required setback from a building foundation? A: 10
feet
31.What is the minimum separation between boreholes in a VCLG
field? A: 15 feet
32.What is the required documentation for a new VCLG installation?
A: Permit application, site plan, and well record
33.What is the acceptable pH range for grout used in geothermal wells?
A: 6.5 to 9.5
34.What is the required license class for drilling VCLG wells in NJ?
A: Class B or higher
, 35.What is the purpose of a loop field manifold? A: To connect multiple
loops to a central header
36.What is the maximum allowable deviation from vertical in a
borehole? A: 5 degrees
37.What is the required setback from a septic drain field? A: 100 feet
38.What is the minimum curing time for grout before system activation?
A: 24 hours
39.What is the required temperature range for fusion welding HDPE
pipe? A: 400°F to 450°F
40.What is the required setback from a public water supply well? A:
200 feet
41.What is the minimum loop pipe diameter for residential systems?
A: ¾ inch
42.What is the required documentation for loop pressure testing? A:
Pressure test log and inspector signature
43.What is the maximum allowable pressure loss in a loop system? A:
10 psi
44.What is the required setback from an underground fuel tank? A:
100 feet
45.What is the required setback from a stormwater basin? A: 50 feet
46.What is the minimum insulation requirement for above-ground loop
piping? A: R-6 or higher
47.What is the required setback from a utility easement? A: 10 feet
48.What is the required setback from a neighboring well? A: 25 feet
49.What is the required setback from a sanitary sewer line? A: 25 feet
50.What is the required loop pressure test duration? A: Minimum 15
minutes
What is the required setback from a livestock pen or barn? A: 100 feet
What is the minimum loop pipe burial depth to prevent freezing? A: 4
feet below grade
What is the required setback from a swimming pool? A: 25 feet
What is the maximum allowable loop field pressure during testing? A:
100 psi
regulations? To protect public health, safety, and the environment
2. Who issues the New Jersey Well Driller’s License? New Jersey
Department of Environmental Protection (NJDEP)
3. What must a driller obtain before constructing a potable water well in
New Jersey? A well permit from NJDEP
4. How often must a New Jersey drilling license be renewed? Every two
years
5. What is the minimum required setback from a septic tank for a
potable water well? 50 feet
6. Which type of well requires the driller to file a Well Record Report?
All wells drilled in New Jersey
7. What continuing education requirement exists for geothermal well
drillers in New Jersey? Annual renewal with proof of continuing
education
8. What is the required casing material for vertical closed loop wells?
High-density polyethylene (HDPE)
9. What is the minimum borehole depth for a VCLG system in NJ?
Determined by site-specific thermal load calculations
10.What is the penalty for drilling without a valid license in NJ? Fines
and possible revocation of certification
11.What is the minimum setback distance from a property line for a
vertical closed loop well? A: 10 feet
12.Which agency regulates geothermal drilling activities in New Jersey?
A: NJDEP (New Jersey Department of Environmental Protection)
13.What type of grout is typically used to seal vertical closed loop
boreholes? A: Bentonite-based grout
,14.What is the purpose of grouting a borehole in a VCLG system? A:
To prevent groundwater contamination and maintain thermal
conductivity
15.How deep can a vertical closed loop borehole be without triggering
additional NJDEP review? A: Up to 500 feet
16.What document must be submitted after completing a geothermal
well installation? A: Well Record Report
17.What is the required diameter for a typical VCLG borehole? A: 4
to 6 inches
18.Which pipe material is approved for geothermal loop installations in
NJ? A: High-Density Polyethylene (HDPE)
19.What is the minimum pressure rating for HDPE pipe used in
geothermal loops? A: 160 psi
20.What is the primary environmental concern during geothermal
drilling? A: Groundwater contamination
21.What is the recommended method for loop pipe fusion? A: Butt
fusion or socket fusion
22.How often must drilling equipment be inspected for safety
compliance? A: Before each job and monthly
23.What is the penalty for falsifying well records in NJ? A: License
suspension or revocation and fines
24.What is the required setback from a stream or surface water body?
A: 100 feet
25.What is the maximum number of boreholes allowed per acre without
special approval? A: 25 boreholes
26.What is the required depth for loop burial in horizontal geothermal
systems? A: Minimum 4 feet
27.Which certification is required for fusion technicians in NJ? A:
IGSHPA or equivalent fusion certification
28.What is the purpose of a thermal conductivity test? A: To determine
the heat transfer efficiency of the ground
29.What is the minimum bend radius for HDPE pipe? A: 25 times the
pipe diameter
30.What is the required setback from a building foundation? A: 10
feet
31.What is the minimum separation between boreholes in a VCLG
field? A: 15 feet
32.What is the required documentation for a new VCLG installation?
A: Permit application, site plan, and well record
33.What is the acceptable pH range for grout used in geothermal wells?
A: 6.5 to 9.5
34.What is the required license class for drilling VCLG wells in NJ?
A: Class B or higher
, 35.What is the purpose of a loop field manifold? A: To connect multiple
loops to a central header
36.What is the maximum allowable deviation from vertical in a
borehole? A: 5 degrees
37.What is the required setback from a septic drain field? A: 100 feet
38.What is the minimum curing time for grout before system activation?
A: 24 hours
39.What is the required temperature range for fusion welding HDPE
pipe? A: 400°F to 450°F
40.What is the required setback from a public water supply well? A:
200 feet
41.What is the minimum loop pipe diameter for residential systems?
A: ¾ inch
42.What is the required documentation for loop pressure testing? A:
Pressure test log and inspector signature
43.What is the maximum allowable pressure loss in a loop system? A:
10 psi
44.What is the required setback from an underground fuel tank? A:
100 feet
45.What is the required setback from a stormwater basin? A: 50 feet
46.What is the minimum insulation requirement for above-ground loop
piping? A: R-6 or higher
47.What is the required setback from a utility easement? A: 10 feet
48.What is the required setback from a neighboring well? A: 25 feet
49.What is the required setback from a sanitary sewer line? A: 25 feet
50.What is the required loop pressure test duration? A: Minimum 15
minutes
What is the required setback from a livestock pen or barn? A: 100 feet
What is the minimum loop pipe burial depth to prevent freezing? A: 4
feet below grade
What is the required setback from a swimming pool? A: 25 feet
What is the maximum allowable loop field pressure during testing? A:
100 psi
