1
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1 Walkthrough
Inspections
e
1 The following outlines what you must complete,
1 record and keep for walkthrough inspections:

Every 30 days:
•	For spill buckets, remove liquid or debris,
visually check for damage and any leaks
in the interstice if double walled. Also
check the fill pipe for obstructions and
check that the fill cap is securely on the
fill pipe. Note: If receiving deliveries at
intervals greater than every 30 days,
then conduct prior to each delivery.
•	For release detection, review monthly
leak detection results to ensure that the
equipment is operating with no alarms or
unusual operating conditions and that
, release detection records are current. f
# Annually:	\
•	For containment sumps (e.g. turbine
sumps and under dispenser sumps),
remove any debris and liquid, and check
for damage and any leaks in the
containment area and in the interstice if
double walled.
•	For release detection, test equipment
like tank monitors for proper operation
(i.e. tank monitor certification) and check
any handheld equipment (i.e. tank sticks)
for operability if using them.
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Is Your UST
Facility
Ready?
EPA enacted revisions to the 1988
federal underground storage tank
regulations that became effective on
October 13, 2015.
As of October 13, 2018, new testing
and inspection requirements were
due. You are responsible for all
regulatory requirements.
For more information, please visit -
https: / /www.epa.gov/ust

Contact us by calling
(206) 553-1200 and asking
for the Underground
Storage Tank Program
EPA 910-F-21-001

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¦
Changing
Ownership
or Types of
Fuel Stored

You must notify EPA if the
facility's ownership is
changing or if you are
changing the type of fuel
stored.
\r
Operator Training
& Certification
You must have
designated (assigned),
trained and certified
Class A, B and C UST
operators.
Piping &
Repairs
If you need to repair 50%
or more of your piping in
a single run, then the
following requirements
apply:

A new owner of a
UST must submit a
notice of ownership
change to EPA within
30 days of assuming
ownership.
You must notify EPA
at least 30 days prior
to switching to
substances
containing greater
than 10% ethanol or
greater than 20%
biodiesel. You must
demonstrate that
the components of
your UST system are
compatible with the
substance stored.
V

•	Certification exams for
Class A and B operators
can be accessed at EPA's
website and are 100%
free of cost.
•	A score of 80% or
greater qualifies
individuals as trained
operators.
•	The exam can be taken
an unlimited number of
times.
•	Other comparable
training programs can
be used provided they
cover and evaluate the
operator in each topic
area.
yv.

The entire piping run
must be replaced with
secondarily contained
piping (double walled
and containment
sumps) and have
monthly interstitial
monitoring.
Testing of all
containment sumps
used for interstitial
monitoring of piping is
to be conducted every
3 years.
All repaired
components must be
tested or inspected 30
days after the repair
has been made.
Additional Resources:
www.epa.gov/ust/operating-and-maintaining-ust-systems-2015-requirements
www.epa.gov/ust/class-a-and-class-b-ust-operator
www.epa.gov/ust/emerging-fuels-and-underground-storage-tanks-usts
www.epa.gov/ust/resources-ust-owners-and-operators
www.epa.gov/sites/production/files/2015-12/documents/musts_for_usts.pdf
Spill Prevention,
Overfill Equipment &
Containment Sumps
/	\
Release prevention
equipment must now be
inspected and tested to
ensure proper operation.
Every 3 Years:
•	Test the spill buckets
or catchment basins
for liquid tightness.
Test is not required if
double walled and you
monitor the integrity
of both walls every 30
days.
•	Test all containment
sumps used for
interstitial monitoring
of piping for liquid
tightness. Test is not
required if double
walled and you
monitor the integrity
of both walls annually.
Test is also not
required if piping was
installed prior to April
11, 2016 and is not
being interstitially
monitored.
• Inspect and document
the operability of
overfill prevention
devices (e.g. ball floats,
automatic shut-off
devices, alarms).
V

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