| 01. |
RECORDS AND REPORTING
REQUIREMENTS (Content Area) |
8% |
| |
0101. Line and Tank
Tightness Test Records (Task) 4%
Review past tightness test records when available.
Complete and submit tightness test results for current
test to state UST agency on appropriate forms. Provide
the tank owner/operator with written test results
which indicate whether test is "passed"
or "failed". |
|
| |
0102. Reporting of Failed Results and Releases
(Task) 4%
Notify the tank owner/operator that a "failed"
test must be reported as a suspected release to
the appropriate state agency within the appropriate
time. Report system leaks as required.
|
|
| 02. |
SITE PREPARATION
AND LAYOUT (Content Area) |
6% |
| |
0201. UST System Layout (Task) 6%
Determine site layout for tanks, piping, and equipment
before beginning tests. Verify access to set up
test equipment.
|
|
| 03. |
PLACEMENT OF EQUIPMENT
(Content Area) |
4% |
| |
0301. Tank Fill Lines,
Devices, Connections, and Tank Caps (Task) 2%
Verify correct installation of tank fill lines,
connectors and other devices. Verify that pipes
slope toward tank(s). Verify that fittings and joints
are properly tightened. Verify correct identification
and installation of fill and monitoring well caps. |
|
| |
0302. Automatic Leak Detection Systems (Task)
2%
Verify compliance with regulations requiring installation
and proper operation of line leak detection and
automatic leak detection systems and devices for
product piping and tanks.
|
|
| 04. |
SECONDARY CONTAINMENT
(Content Area) |
4% |
| |
0401. Tank and Overfill
Protection (Task) 2%
Verify correct installation of tank overfill protection. |
|
| |
0402. Tank and Pipe Secondary Containment
(Task) 2%
Verify proper installation of tank and pipe secondary
containment and release detection methods.
|
|
| 05. |
VAPOR RECOVERY SYSTEMS
(Content Area) |
2% |
| |
0501. Stage I and Stage II Vapor Recovery
Systems (Task) 2%
Verify correct installation of Stage I and Stage
II vapor recovery systems when required.
|
|
| 06. |
TEST VARIABLES &
LEAK DETECTION REQUIREMENTS (Content Area) |
22% |
| |
0601. Release Detection
Requirements (Task) 6%
Determine compliance with regulations requiring
installation and proper operation of leak detection
systems and devices for product piping and tanks. |
|
| |
0602. Test Methods
(Task) 4%
Determine which test methods to use which meet federal
and state requirements. |
|
| |
0603. Periodic Tests
at Required Intervals (Task) 2%
Correctly inform tank owner/operator when a tightness
test is required and schedule the test date with
the owner/operator to be sure that necessary arrangements
are made. Perform tightness tests at required time
intervals (1 yr, 5 yrs, etc.) according to EPA regulations
applicable to each situation. |
|
| |
0604. Water Table
(Task) 2%
Determine the height of the water table and the
groundwater elevation relative to the bottom of
the tank. Use methods to compensate for the effects
of the water table on the tightness tests. |
|
| |
0605. Interpretation of Test Results (Task)
8%
Determine whether or not the tightness test results
are conclusive and whether additional testing
is required to obtain valid results.
|
|
| 07. |
VOLUMETRIC TIGHTNESS
TESTING (Content Area) |
14% |
| |
0701. Preparation
for Tank Tightness Testing (Task) 8%
Verify that fittings and joints are properly tightened
and that gaskets are installed and in good condition.
Isolate piping from the tank to be tightness tested.
Disconnect or isolate manifolded tanks from each
other. Remove drop tube if removable. Fill tank
with product to appropriate testing level required
for tightness testing. Wait until thermal effects
and structural deformation resulting from filling
the tank have stabilized before commencing tightness
testing. Calibrate and install instrumentation equipment
on the tank according to the test equipment manufacturer's
instructions. |
|
| |
0702. Conducting Volumetric Tank Tightness
Tests (Task) 6%
Identify and remove vapor pockets in the tank.
Determine height-to-volume conversion factor for
tightness test. Measure changes in product level
and temperature and analyze test data to determine
volume changes and volumetric flow rate during
tightness test. Make fine adjustments to product
level if required to achieve final level for tightness
test. Measure and evaluate changes in product
level and temperature during tightness testing.
Determine coefficient of thermal expansion for
tank tightness test.
|
|
| 08. |
NONVOLUMETRIC TIGHTNESS
TESTING (Content Area) |
8% |
| |
0801. Nonvolumetric Tightness Testing (Task)
8%
Use various methods of nonvolumetric tank tightness
testing such as tracer chemical, gas sampling
acoustical and calibrating liquid flow through
simulators.
|
|
| 09. |
HEALTH AND SAFETY
FOR UST WORKERS (Content Area) |
12% |
| |
0901. Control of
Vapors and Sources of Ignition (Task) 8%
Identify and control concentrations of flammable
or combustible vapors before repairing, decommissioning
or tank and pipe tightness testing. Use breathing
support devices when necessary. Remove sources of
ignition within distances required. |
|
| |
0902. Grounding and
Bonding of Equipment (Task) 2%
Verify grounding of electrical equipment to minimize
the possibility of sparks from static electricity
or other differences in electrical potential. |
|
| |
0903. Personal Safety Equipment (Task) 2%
Observe safety precautions and use personal safety
equipment necessary for the work involved in,
including the use of protective clothing, safety
line and other recommended equipment.
|
|
| 10. |
TESTING OF PIPING
SYSTEMS (Content Area) |
20% |
| |
1001. Preparation
for Pipe Tightness Testing (Task) 10%
Determine if the piping is flexible or rigid. Verify
that fittings and joints are properly tightened
and that gaskets are installed and in good condition.
Isolate piping to be tightness tested. Determine
the volume of piping to be tested. Determine if
the system contains any abandoned piping. When necessary,
remove or isolate the line leak detector and test
its operation. Determine the appropriate test pressure
based on whether the piping system is a suction
system or a pressurized system. Wait until thermal
effects and structural deformation have stabilized
before commencing tightness testing. Calibrate and
install instrumentation equipment according to the
test equipment manufacturer's instructions. |
|
| |
1002. Conduct Line
Tightness Tests (Task) 6%
Identify and remove air and vapor pockets in the
piping. Measure and record pressure and volume loss
or gain during tightness testing. |
|
| |
1003. Compare Data to Threshold Values (Task)
4%
Compare measured leak rate to the acceptable threshold
values to determine if there are leaks in the
system.
|
|
