CLASS A/B OPERATOR FOR UNDERGROUND
STORAGE TANK
The Class A and Class B certification must be renewed every: - Answers- 5 years
UST financial responsibility requirements apply to what? - Answers- 600 gallon used oil
tank
Secondary Containment is required for what? - Answers- New UST Systems, Piping in
contact with the ground, and Replacement UST
A Class A operator shall maintain the records of UST site inspections for a *minimum*
of: - Answers- 3 years
New owners of an existing UST system shall register the UST system with DEQ/LARA
within what period from date of ownership? - Answers- 30 days
UST systems with cathodic protection should be inspected for proper operation by a
qualified cathodic protection tester on the following schedule: - Answers- Every three
years
UST systems with impressed current cathodic protection systems must be inspected at
a minimum: - Answers- Every 60 days
Within what period after a repair should a cathodically protected UST system be tested
to ensure it is working properly? - Answers- 6 months
Line testing of piping shall be capable of detecting X gallons per hour leak rate at 1 and
a half times the operating pressure. X is: - Answers- 0.1 gallons per hour
What actions are not appropriate when when the owner/operator becomes aware of a
spill or overfill? - Answers- Drain the spill to the storm sewer or nearby ditch
Upon confirmation of a release to the soil/groundwater/surface water the operator shall:
- Answers- Report the release to the DEQ within 24 hours, by fax or phone
A Class B operator shall not be responsible for more than the following facilities: -
Answers- 45 facilities
What is the minimum frequency of site inspections to assure operational compliance? -
Answers- Quarterly
If a facility has been determined by the DEQ inspector to be out of compliance with the
significant operational compliance requirements, the DEQ shall retrain: - Answers- The
class A operator of the facility
, When planning to permanently close a UST system, the DEQ must be notified not less
than: - Answers- 30 days
Upon permanent Removal of an UST system, the operator shall: - Answers- Notify the
DEQ within 30 days with an amended registration form
The operator shall notify the DEQ of a confirmed release upon removal of an UST and
visual evidence showing: - Answers- Either there is visibly contaminated groundwater in
the tank cavity or there is visibly contaminated soil in the tank cavity and/or soil removed
from the tank cavity
Upon removal of an UST where there is no visual or olfactoryevidence of a release , the
operator shall: - Answers- Take soil samples, analyze them, and then send the site
assessment results to the DEQ for a determination
A leak should be suspected in 1,560 gallon tank if the variation between the beginning
and ending manual tank gauging liquid level measurements exceeds the weekly
standard of X gallons. X is: - Answers- 26 gallons
The class B operator should inspect the UST system for operational compliance status
at a minimum: - Answers- Every quarter
Release detection records of sampling, testing, or monitoring shall be maintained for: -
Answers- 2 years
When a tank that has been installed for less than 10 years is upgraded with the cathodic
protection, tightness test(s) are required as follows: - Answers- Tightness tests should
be conducted before the installation of cathodic protection and 3-6 months after the
installation of the cathodic protection
UST systems with impressed current cathodic protection systems must also be
inspected at a minimum of: - Answers- Every 60 days
Product inventory control shall be conducted monthly to detect a release of not less
than X% of flow through plus 130 gallons a monthly basis. X% is: - Answers- 1%
Automatic line leak detector may be used only if the method detects X gallons per hour
at 10 pounds per square inch line pressure within one hour. X is: - Answers- 3 gallons
per hour
Tank tightness testing, or another test of equivalent performance, shall be capable of
detecting X gallon per hour leak rate from any portion of the tank while accounting for
the effects of thermal expansion or the contraction of the product, vapor pockets, tank
deformation, evaporation or condensation, and the location of the water table. X is: -
Answers- 0.1 gallons per hour
STORAGE TANK
The Class A and Class B certification must be renewed every: - Answers- 5 years
UST financial responsibility requirements apply to what? - Answers- 600 gallon used oil
tank
Secondary Containment is required for what? - Answers- New UST Systems, Piping in
contact with the ground, and Replacement UST
A Class A operator shall maintain the records of UST site inspections for a *minimum*
of: - Answers- 3 years
New owners of an existing UST system shall register the UST system with DEQ/LARA
within what period from date of ownership? - Answers- 30 days
UST systems with cathodic protection should be inspected for proper operation by a
qualified cathodic protection tester on the following schedule: - Answers- Every three
years
UST systems with impressed current cathodic protection systems must be inspected at
a minimum: - Answers- Every 60 days
Within what period after a repair should a cathodically protected UST system be tested
to ensure it is working properly? - Answers- 6 months
Line testing of piping shall be capable of detecting X gallons per hour leak rate at 1 and
a half times the operating pressure. X is: - Answers- 0.1 gallons per hour
What actions are not appropriate when when the owner/operator becomes aware of a
spill or overfill? - Answers- Drain the spill to the storm sewer or nearby ditch
Upon confirmation of a release to the soil/groundwater/surface water the operator shall:
- Answers- Report the release to the DEQ within 24 hours, by fax or phone
A Class B operator shall not be responsible for more than the following facilities: -
Answers- 45 facilities
What is the minimum frequency of site inspections to assure operational compliance? -
Answers- Quarterly
If a facility has been determined by the DEQ inspector to be out of compliance with the
significant operational compliance requirements, the DEQ shall retrain: - Answers- The
class A operator of the facility
, When planning to permanently close a UST system, the DEQ must be notified not less
than: - Answers- 30 days
Upon permanent Removal of an UST system, the operator shall: - Answers- Notify the
DEQ within 30 days with an amended registration form
The operator shall notify the DEQ of a confirmed release upon removal of an UST and
visual evidence showing: - Answers- Either there is visibly contaminated groundwater in
the tank cavity or there is visibly contaminated soil in the tank cavity and/or soil removed
from the tank cavity
Upon removal of an UST where there is no visual or olfactoryevidence of a release , the
operator shall: - Answers- Take soil samples, analyze them, and then send the site
assessment results to the DEQ for a determination
A leak should be suspected in 1,560 gallon tank if the variation between the beginning
and ending manual tank gauging liquid level measurements exceeds the weekly
standard of X gallons. X is: - Answers- 26 gallons
The class B operator should inspect the UST system for operational compliance status
at a minimum: - Answers- Every quarter
Release detection records of sampling, testing, or monitoring shall be maintained for: -
Answers- 2 years
When a tank that has been installed for less than 10 years is upgraded with the cathodic
protection, tightness test(s) are required as follows: - Answers- Tightness tests should
be conducted before the installation of cathodic protection and 3-6 months after the
installation of the cathodic protection
UST systems with impressed current cathodic protection systems must also be
inspected at a minimum of: - Answers- Every 60 days
Product inventory control shall be conducted monthly to detect a release of not less
than X% of flow through plus 130 gallons a monthly basis. X% is: - Answers- 1%
Automatic line leak detector may be used only if the method detects X gallons per hour
at 10 pounds per square inch line pressure within one hour. X is: - Answers- 3 gallons
per hour
Tank tightness testing, or another test of equivalent performance, shall be capable of
detecting X gallon per hour leak rate from any portion of the tank while accounting for
the effects of thermal expansion or the contraction of the product, vapor pockets, tank
deformation, evaporation or condensation, and the location of the water table. X is: -
Answers- 0.1 gallons per hour
