^
UJ
Operating And
Maintaining
Underground Storage
Tank Systems
Practical Help And
Checklists
HAVE You
CHECKED
YOUR TANK
TODAY?
Printed on Recycled Paper
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Contents
How to Use This Booklet 1
Section 1 Identifying The Equipment At Your LIST Facility 3
Section 2 Release Detection 5
Section 3 Suspected Or Confirmed Releases 21
Section 4 Spill And Overfill Protection 24
Section 5 Corrosion Protection 34
Section 6 Frequent Walk-Through Inspections 42
Section 7 For More Information 44
DISCLAIMER
This document provides information on operating and
maintaining underground storage tank (LIST) systems. The
document is not a substitute for U.S. Environmental
Protection Agency regulations nor is it a regulation itself it
does not impose legally binding requirements.
For regulatory requirements regarding LIST systems, refer to
the federal regulations governing LIST systems (40 CFR
Part 280).
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How To Use This Booklet
Who Should Read This Booklet?
This booklet is for owners and operators of
underground storage tank systems (USTs).
You are responsible for making sure your USTs do not
leak. This booklet can help you meet your LIST
responsibilities.
What Can This Booklet Help You Do?
Identify and understand the operation and
maintenance (O&M) procedures you need to follow
routinely to make sure your USTs don't have leaks
that damage the environment or endanger human
health.
Identify good O&M procedures you can use to avoid
cleanup costs and liability concerns.
Maintain useful records of your O&M.
Key Terms Used In This
Booklet
An UST is an underground
storage tank and underground
piping connected to the tank
that has at least 10 percent of its
combined volume underground.
The federal regulations apply
only to USTs storing petroleum
or certain hazardous substances.
O&M stands for operation and
maintenance procedures that
must be followed to keep USTs
from causing leaks and creating
costly cleanups.
Your UST System Is New Or Upgraded Is That Enough?
Being new or upgraded is not enough. New and upgraded USTs are made of a complex
collection of mechanical and electronic devices that can fail under certain conditions. These
failures can be prevented or quickly detected by following routine O&M procedures. Having a
new or upgraded UST system is a good start, but the system must be properly operated and
continuously maintained to ensure that leaks are avoided or quickly detected.
What Should You Do With Each Section Of This Booklet?
Read through each section
carefully and use the checklists
to help you establish clear O&M
procedures.
By identifying and understanding
the O&M tasks you need to
perform routinely, you will
ensure timely repair or
replacement of components
when problems are identified.
_f
HAVE You
CHECKED
YOUR TANK
TODAY?
Operating And Maintaining UST Systems
-------
How Can You Use The Following Checklists Effectively?
This booklet's pages are 3-hole punched and unbound so you can put all the materials in a
handy 3-ring binder. You can easily remove any of the following checklists from the binder,
reproduce them, and then fill them out.
You can select the specific mix of checklists that matches your LIST facility. Once you have
your select group of checklists together, make several copies that you can fill out periodically
over time.
In this way you can keep track of your O&M activities and know that you've done what was
necessary to keep your LIST site safe and clean, avoiding any threats to the environment or
nearby people as a result of costly and dangerous LIST releases.
Use This Booklet Often Effective O&M Requires Constant
Vigilance.
Note: This booklet describes quality O&M practices put together by a work group of
state and federal environmental regulators. This booklet is not a federal regulation nor
legally binding, but it does provide useful information on effective O&M procedures.
You should check with your state LIST program for information on any additional or
different O&M practices that may be required in your state.
See Section 7 for contact information.
Operating And Maintaining UST Systems
-------
Section 1 Identifying The Equipment At Your LIST
Facility
Determine what LIST equipment you have at your facility by completing the checklist below.
Note that each part of the checklist below refers you to the appropriate section of this O&M
booklet for relevant information. After you have identified your equipment, proceed to the
following sections to identify the O&M actions necessary for your specific UST system.
General Facility Information (optional)
Facility Name
Facility ID #
Release Detection (See Section 2 for information on release detection)
A. Release Detection for Tanks
Check at least one for each tank:
Automatic Tank Gauging System
Interstitial Monitoring (with secondary containment)
Groundwater Monitoring
Vapor Monitoring
Inventory Control and Tank Tightness Testing (TTT)*
Manual Tank Gauging Only **
Manual Tank Gauging and Tank Tightness Testing (TTT)***
Other Release Detection Method, such as SIR
(please specify)
Tank #1
Tank #2
Tank #3
Tank #4
* Allowed only for 10 years after upgrading or installing tank with corrosion protection. TTT required every 5 years.
** Allowed only for tanks of 1 ,000 gallon capacity or less.
*** Allowed only for tanks of 2,000 gallon capacity or less and only for 10 years after upgrading or installing tank with corrosion
protection. TTT required every 5 years.
B. Release Detection for Pressurized Piping
Check at least one from A & B for each tank's piping:
(
A Automatic Flow Restrictor
Automatic ... .. _. . _ .
.. . . Automatic Shutoff Device
Line Leak
Detectors) Continuous Alarm
Annual Line Tightness Test
Monthly Monitoring*
Tank #1
Tank #2
Tank #3
Tank #4
* Monthly Monitoring for piping includes Interstitial Monitoring, Vapor Monitoring, Groundwater Monitoring, and other accepted
methods (such as SIR and Electronic Line Leak Detectors)
C. Release Detection for Suction Piping
Check at least one for each tank's piping:
Line Tightness Testing Every Three Years
Monthly Monitoring*
No Release Detection Required For Safe Suction **
Tank #1
Tank #2
Tank #3
Tank #4
* Monthly Monitoring for piping includes Interstitial Monitoring, Vapor Monitoring, Groundwater Monitoring, and SIR
** No release detection required only if it can be verified that you have a safe suction piping system with the following
characteristics:
1) Only one check valve per line located directly below the dispenser;
2) Piping sloping back to the tank; and
3) System must operate under atmospheric pressure.
Operating And Maintaining UST Systems
-------
Spill and Overfill Protection (See Section 4 for more information)
Check for each tank:
Spill Catchment Basin/ Spill Bucket
Check at least one overfill device for each tank:
Automatic Shutoff Device
Overfill Alarm
Ball Float Valve
Tank #1
Tank #2
Tank #3
Tank #4
Corrosion Protection (See Section 5 for more information)
A. Corrosion Protection for Tanks
Check at least one for each tank:
Coated and Cathodically Protected Steel
Noncorrodible Material (such as Fiberglass Reinforced Plastic)
Steel Jacketed or Clad with Noncorrodible Material
Cathodically Protected Noncoated Steel*
Internally Lined Tank*
Cathodically Protected Noncoated Steel and Internally Lined Tank*
Other Method Used to Achieve Corrosion Protection
(please specify):
Tank #1
Tank #2
Tank #3
Tank #4
* These options may be used only for tanks installed before December 22, 1988.
B. Corrosion Protection for Piping
Check at least one for each:
Coated and Cathodically Protected Steel
Noncorrodible Material (such as Fiberglass Reinforced
Plastic or Flexible Plastic)
Cathodically Protected Noncoated Metal*
Other Method Used to Achieve Corrosion Protection
(please specify):
Tank #1
Tank #2
Tank #3
Tank #4
* This option may be used only for piping installed before December 22, 1988.
Any Problems Filling Out This Checklist?
If you have trouble filling out this checklist or any following checklist, remember these
sources of assistance you can contact:
Your LIST contractor, the vendor of your equipment, and the manufacturer of your LIST
equipment should be ready to help you. Look through your records for contact
information. You may also want to use some of the industry contacts and other contact
information provided in Section 7.
Your state regulatory agency may be able to help you identify equipment or sources of
information about your LIST equipment. You should, in any event, make yourself aware
of any ways in which your state may have additional or different O&M procedures than
those presented in this booklet. See Section 7 for state agency contact information.
Operating And Maintaining UST Systems
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Section 2 Release Detection
What Is Release Detection?
You must be able to determine
at least every 30 days whether
or not your tank and piping are
leaking by using proper release
detection methods.
Your release detection method
must be able to detect a release
from any portion of the tank and
connected underground piping
that routinely contains product.
Release detection must be
installed, calibrated, operated,
and maintained according to the
manufacturer's instructions.
Inventory Control or
Manual Tank Gauging
TankTightnessTest
Do You Know If Your Release Detection Is Certified To Work At
Your UST Site?
Release detection must meet specific performance requirements. You should have
documentation from the manufacturer, vendor, or installer of your release detection
equipment showing certification that it can meet performance requirements.
Some vendors or manufacturers supply their own certification, but more often an impartial
"third party" is paid to test the release detection equipment and certify that performance
requirements are met. An independent workgroup of release detection experts periodically
evaluates all third-party certifications, thus providing a free and reliable list of evaluations of
third-party certifications for various release detection equipment. Frequently updated, this
list is available on the Internet at http://www.nwglde.org/ (the publication's title is List Of
Leak Detection Evaluations For Underground Storage Tank Systems). If you can't find
the certification anywhere, contact your state regulatory agency (see Section 7 for contact
information).
By checking the certification, you may discover the method you use has not been approved
for use with the type of tank or piping you have or the type of product being stored. For
example, you may learn from the certification that your method won't work with manifolded
tanks, certain products, high throughput, or with certain tank sizes.
That's why you need to make sure your release detection method has clear certification that
it will work effectively at your site with its specific characteristics.
Operating And Maintaining UST Systems
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How Can You Make Sure Your Leak Detection Method Is Working
AtYourUSTSite?
If you don't understand your O&M responsibilities and don't know what O&M tasks you
must routinely perform, you may allow your LIST site to become contaminated then you
will face cleanup costs and associated problems.
To avoid these problems use the checklists on the following pages that describe each type
of leak detection method, discuss actions necessary for proper O&M, and note the records
you should keep.
Locate the methods of release detection you are using at your facility, review these pages,
and periodically complete the checklist. You might want to copy a page first and periodically
fill out copies later.
If you have questions about your release detection system, review your owner's manual or
call the vendor of your system. Your state or local regulatory agency may be able to provide
assistance as well.
You will find leak detection recordkeeping forms in the following pages of this Section.
Keeping these records increases the likelihood that you are conducting good O&M and
providing effective release detection at your LIST site. For example, see page 20 for
a 30-Day Release Detection Monitoring Record.
If you ever suspect or confirm a leak, refer to Section 3. Never ignore leak detection
alarms or failed leak detection tests. Treat them as potential leaks!
Operating And Maintaining UST Systems
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Automatic Tank Gauging (ATG) Systems (for tanks only)
Description
Of Release
Detection
An automatic tank gauging (ATG) system consists of a probe permanently
installed in a tank and wired to a monitor to provide information on product
level and temperature. ATG systems automatically calculate the changes in
product volume that can indicate a leaking tank.
Have
Certification
For Your
Release
Detection
Method
Make sure your ATG system is certified for the types of tanks and stored
contents on which the ATG system is used. Most manufacturers have their
leak detection devices tested and certified by a third party to verify that their
equipment meets specific performance requirements set by regulatory agencies.
If you don't have certified performance claims, have the manufacturer provide
them to you.
Perform
These
O&M
Actions
a Use your ATG system to test for leaks at least every 30 days. Most systems
are already programmed by the installer to run a leak test periodically. If your
system is not programmed to automatically conduct the leak test, refer to your
ATG system manual to identify which buttons to push to conduct the leak test.
Testing more often than monthly can catch leaks sooner and reduce cleanup
costs and problems.
a Make sure that the amount of product in your tank is sufficient to run the
ATG leak test. The tank must contain a minimum amount of product to perform
a valid leak detection test. One source for determining that minimum amount is
the certification for your leak detection equipment (as discussed above).
a Frequently test your ATG system according to the manufacturer's
instructions to make sure it is working properly. Don't assume that your
release detection system is working and never needs checking. Read your
owner's manual, run the appropriate tests, and see if your ATG system is set up
and working properly. Most ATG systems have a test or self-diagnosis mode that
can easily and routinely run these checks.
a If your ATG ever fails a test or indicates a release, see Section 3 of this
booklet for information on what to do next.
o Periodically have a qualified LIST contractor, such as the vendor who
installed your ATG, service all the ATG system components according to
the manufacturer's service instructions. Tank probes and other components
can wear out and must be checked periodically. Many vendors recommend or
require this maintenance activity at least annually.
G Check your ATG system owner's manual often to answer questions and to
make sure you know the ATG's operation and maintenance procedures.
Call the ATG manufacturer or vendor for a copy of the owner's manual if you
don't have one.
G Make sure employees who run, monitor, or maintain the release detection
system know exactly what they have to do and to whom to report
problems. Develop and maintain regular training programs for all employees.
Keep These
O&M
Records
Keep results of your ATG system tests for at least 1 year. Your monitoring
equipment may provide printouts that can be used as records. Unless you are
recording actual release detection results at least every 30 days and maintaining
records for at least 1 year, you are not doing leak detection right.
Keep all records of calibration, maintenance, and repair of your release
detection equipment for at least 1 year.
Keep all performance claims supplied by the installer, vendor, or
manufacturer for at least 5 years. These records include the certification of
your leak detection equipment described above.
Operating And Maintaining UST Systems
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Secondary Containment With Interstitial Monitoring
(for tanks & piping)
Description
Of Release
Detection
Secondary containment is a barrier between the portion of an LIST system that
contains product and the outside environment. Examples of secondary
containment include an outer tank or piping wall, an excavation liner, and a
bladder inside an LIST. The area between the inner and outer barriers called
the interstitial space is monitored manually or automatically for evidence of
a leak.
Have
Certification
For Your
Release
Detection
Method
Make sure your interstitial monitoring equipment and any probes are
certified for the types of tanks, piping, and stored contents on which the
release detection system is used. Most manufacturers have their leak
detection devices tested and certified by a third party to verify that their
equipment meets specific performance requirements set by regulatory agencies.
If you don't have certified performance claims, have the manufacturer provide
them to you.
Perform
These
O&M
Actions
a Use your release detection system to test for leaks at least every 30 days.
Testing more often than monthly can catch leaks sooner and reduce cleanup
costs and problems.
a Frequently test your release detection system according to the
manufacturer's instructions to make sure it is working properly. Don't
assume that your release detection system is working and never needs
checking. Read your owner's manual, run the appropriate tests, and see if your
system is set up and working properly. Some interstitial monitoring systems have
a test or self-diagnosis mode that can easily and routinely run these checks.
G If your interstitial monitoring ever fails a test or indicates a release, see
Section 3 of this booklet for information on what to do next.
G Periodically have a qualified LIST contractor, such as the vendor who
installed your release detection system, service all the system components
according to the manufacturer's service instructions. Tank probes and other
components can wear out and must be checked periodically. Many vendors
recommend or require this maintenance activity at least annually.
G Keep interstitial monitoring access ports clearly marked and secured.
G Check your interstitial monitoring system owner's manual often to answer
questions and to make sure you know the system's O&M procedures. Call
the system's vendor or manufacturer for a copy of the owner's manual if you
don't have one.
G Make sure employees who run, monitor, or maintain the release detection
system know exactly what they have to do and to whom to report
problems. Develop and maintain regular training programs for all employees.
Keep
These
O&M
Records
Keep results of your release detection system tests for at least 1 year. Your
monitoring equipment may provide printouts that can be used as records. Unless
you are recording actual release detection results at least every 30 days and
maintaining records for at least 1 year, you are not doing leak detection right.
Keep all records of calibration, maintenance, and repair of your release
detection equipment for at least 1 year.
Keep all performance claims supplied by the installer, vendor, or
manufacturer for at least 5 years. These records include the certification of
your leak detection equipment described above.
Operating And Maintaining UST Systems
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Statistical Inventory Reconciliation (SIR) (for tanks & piping)
Description
Of Release
Detection
SIR is typically a method in which a trained professional uses sophisticated
computer software to conduct a statistical analysis of inventory, delivery, and
dispensing data. You must supply the professional with data every month.
There are also computer programs that enable an owner/operator to perform
SIR. In either case, the result of the analysis may be pass, inconclusive, or
fail.
Have
Certification
For Your
Release
Detection
Method
Make sure your SIR vendor's methodology is certified for the types of
tanks, piping, and product on which you use SIR. Most vendors have their
leak detection methodology tested and certified by a third party to verify that
their equipment meets specific performance requirements set by regulatory
agencies. If you don't have certified performance claims, have the vendor
provide them to you.
Perform
These
O&M
Actions
Supply daily inventory data to your SIR vendor (as required) at least every
30 days. The vendor will provide you with your leak detection results after the
statistical analysis is completed. Otherwise, use your computer software at least
every 30 days to test your tank for leaks.
See Section 3 of this manual if your LIST system fails a leak test.
If you receive an inconclusive result, you must work with your SIR vendor
to correct the problem and document the results of the investigation. An
inconclusive result means that you have not performed leak detection for that
month. If you cannot resolve the problem, treat the inconclusive result as a
suspected release and refer to Section 3.
If you use an ATG system to gather data for the SIR vendor or your
software, periodically have a qualified LIST contractor, such as the vendor
who installed your ATG, service all the ATG system components
according to the manufacturer's service instructions. Tank probes and
other components can wear out and must be checked periodically. Many
vendors recommend or require this maintenance activity at least annually. Do
this according to manufacturer's instructions. See the checklist for ATG systems
on page 7.
If you stick your tank to gather data for the SIR vendor or your software,
make sure your stick can measure to one-eighth of an inch and can
measure the level of product over the full range of the tank's height. You
should check your measuring stick periodically to make sure you can read the
markings and numbers and that the bottom of the stick is not worn.
Make sure employees who run, monitor, or maintain the release detection
system know exactly what they have to do and to whom to report
problems. Develop and maintain regular training programs for all employees.
Keep
These
O&M
Records
Keep results of your SIR tests for at least 1 year. Unless you are keeping
records of the 30-day release detection results and maintaining those records
for at least 1 year, you are not doing leak detection right.
Keep all vendor performance claims for at least 5 years. This includes the
certification of the SIR method discussed above.
If you use an ATG system, keep all records of calibration, maintenance,
and repair of your release detection equipment for at least 1 year.
Keep the records of investigations conducted as a result of any monthly
monitoring conclusion of inconclusive or fail for at least 1 year. This may
include the results of a tightness test performed during the investigation or a re-
evaluation based on corrected delivery or dispenser data.
Operating And Maintaining UST Systems
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Vapor Monitoring (for tanks & piping)
Description
Of Release
Detection
Vapor monitoring measures product vapors in the soil at the LIST site to check
for a leak. A site assessment must determine the number and placement of
monitoring wells that make sure a release is detected. NOTE: vapor monitors
will not work well with substances that do not easily vaporize (such as diesel
fuel).
Have
Certification
For Your
Release
Detection
Method
Make sure your vapor monitoring equipment is certified for the types of
stored contents on which the release detection system is used. Most
manufacturers have their leak detection devices tested and certified by a third
party to verify that their equipment meets specific performance requirements set
by regulatory agencies. If you don't have certified performance claims, have the
manufacturer provide them to you.
Perform
These
O&M
Actions
a Use your release detection system to test for leaks at least every 30 days.
Testing more often than monthly can catch leaks sooner and reduce cleanup
costs and problems. Be sure you check all of your vapor monitoring wells.
a See Section 3 of this manual if your LIST system fails a leak test.
G Frequently test your release detection system according to the
manufacturer's instructions to make sure it is working properly. Don't
assume that your release detection system is working and never needs
checking. Some electronic vapor monitoring systems have a test or self-
diagnosis mode. If you have components (such as monitoring equipment,
probes or sensors) for your vapor monitoring system, read your manual and test
your equipment to see if it is working properly.
G Periodically have a qualified LIST contractor, such as the vendor who
installed your release detection system, service all the system components
according to the manufacturer's service instructions. Probes and other
components can wear out and must be checked periodically. Many vendors
recommend or require this maintenance activity at least annually.
G Keep your vapor monitoring wells clearly marked and secured.
G Check your vapor monitoring system owner's manual often to answer
questions and to make sure you know the system's operation and
maintenance procedures. Call the system's vendor or manufacturer for a copy
of the owner's manual if you don't have one.
G Make sure employees who run, monitor, or maintain the release detection
system know exactly what they have to do and to whom to report
problems. Develop and maintain regular training programs for all employees.
Keep
These
O&M
Records
a Keep results of your release detection system tests for at least 1 year. Your
monitoring equipment may provide printouts that can be used as records. Unless
you are recording actual release detection results at least every 30 days and
maintaining records for at least 1 year, you are not doing leak detection right.
G Keep all records of calibration, maintenance, and repair of your release
detection equipment for at least 1 year.
G Keep all performance claims supplied by the installer, vendor, or
manufacturer for at least 5 years. These records include the certification of
your leak detection equipment described above.
Operating And Maintaining UST Systems
10
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Description
Of Release
Detection
Groundwater Monitoring (for tanks & piping)
Groundwater monitoring looks for the presence of liquid product floating on
the groundwater at the LIST site. A site assessment must determine the
number and placement of monitoring wells that make sure a release is
detected. NOTE: this method cannot be used at sites where groundwater is
more than 20 feet below the surface.
Have
Certification
For Your
Release
Detection
Method
Make sure any automated groundwater monitoring equipment is certified
for the types of stored contents on which the release detection system is
used. Most manufacturers have their leak detection devices tested and certified
by a third party to verify that their equipment meets specific performance
requirements set by regulatory agencies. If you don't have certified performance
claims, have the manufacturer provide them to you. (Manual devices such as
bailers are not generally certified.)
Perform
These
O&M
Actions
a Use your release detection system to test for leaks at least every 30 days.
Testing more often than monthly can catch leaks sooner and reduce cleanup
costs and problems. Be sure you check all of your groundwater monitoring
wells.
a See Section 3 of this manual if your LIST system fails a leak test.
G Frequently test your automated release detection system according to the
manufacturer's instructions to make sure it is working properly. Don't
assume that your release detection system is working and never needs
checking. Some electronic groundwater monitoring systems have a test or self-
diagnosis mode. If you have components (such as monitoring equipment,
probes or sensors) for your groundwater monitoring system, read your manual
and test your equipment to see if it is working properly. Manual devices should
be periodically checked to make sure they are working properly.
G Periodically have a qualified LIST contractor, such as the vendor who
installed your release detection system, service all the system
components according to the manufacturer's service instructions. Probes
and other components can wear out and must be checked periodically. Many
vendors recommend or require this maintenance activity at least annually.
G Keep your groundwater monitoring wells clearly marked and secured.
G Check your groundwater monitoring system owner's manual often to
answer questions and to make sure you know the system's operation and
maintenance procedures. Call the system's vendor or manufacturer for a copy
of the owner's manual if you don't have one.
G Make sure employees who run, monitor, or maintain the release detection
system know exactly what they have to do and to whom to report
problems. Develop and maintain regular training programs for all employees.
Keep
These
O&M
Records
Keep results of your release detection system tests for at least 1 year.
Your monitoring equipment may provide printouts that can be used as records.
Unless you are recording actual release detection results at least every 30 days
and maintaining records for at least 1 year, you are not doing leak detection
right.
Keep all records of calibration, maintenance, and repair of your release
detection equipment for at least 1 year.
Keep all performance claims supplied by the installer, vendor, or
manufacturer for at least 5 years. These records include the certification of
your leak detection equipment described above.
Operating And Maintaining UST Systems
11
-------
Inventory Control And Tank Tightness Testing (for tanks only)
Description
Of Release
Detection
This temporary method combines monthly inventory control with periodic tank tightness
testing. Inventory control involves taking measurements of tank contents and recording
the amount of product pumped each operating day, measuring and recording tank
deliveries, and reconciling all this data at least once a month. This combined method also
includes tightness testing, a sophisticated test performed by trained professionals.
NOTE: This combination method can only be used temporarily for up to 10 years after
installing a new UST or for up to 10 years after your tank meets the corrosion protection
requirements.
Have
Certification
For Your
Release
Detection
Method
Make sure your tank tightness testing method is certified for the types of tanks and
stored contents on which the tightness test is used. Most tightness test methods are
certified by a third party to verify that they meet specific performance requirements set by
regulatory agencies. If you don't have certified performance claims, have the tightness tester
provide them to you.
Perform
These
O&M
Actions
Take inventory readings and record the numbers at least each day that product is
added to or taken out of the tank. You may want to use the Daily Inventory Worksheet
provided for you on the next page.
Reconcile the fuel deliveries with delivery receipts by taking inventory readings
before and after each delivery. Record these readings on a Daily Inventory Worksheet
(see next page).
Reconcile all your data at least every 30 days. Use a Monthly Inventory Record (see
page 14 for an example).
Have a tank tightness test conducted at least every 5 years. This testing needs to be
conducted by a professional trained in performing tank tightness testing.
See Section 3 of this manual if your tank fails a tightness test or if fails two
consecutive months of inventory control.
Ensure that your measuring stick can measure to the nearest one-eighth inch and
can measure the level of product over the full range of the tank's height. You should
check your measuring stick periodically to make sure that you can read the markings and
numbers and that the bottom of the stick is not worn.
Ensure that your product dispenser is calibrated according to local standards or to
an accuracy of 6 cubic inches for every 5 gallons of product withdrawn.
Measure the water in your tank to the nearest one-eighth inch at least once a month
and record the results on the reconciliation sheet. You can use a paste that changes
color when it comes into contact with water.
Make sure employees who run, monitor, or maintain the release detection system
know exactly what they have to do and to whom to report problems. Develop and
maintain regular training programs for all employees.
Keep
These
O&M
Records
a Keep results of your release detection system tests for at least 1 year. Your monitoring
equipment may provide printouts that can be used as records. Unless you are recording
actual release detection results at least every 30 days and maintaining records for at least 1
year, you are not doing leak detection right.
a Keep the results of your most recent tightness test.
G Keep all certification and performance claims for tank tightness test performed at
your UST site for at least 5 years.
Operating And Maintaining UST Systems
12
-------
Daily Inventory Worksheet
Facility Name:
Your Name:
Date:
| Tank Identification
Type Of Fuel
Tank Size In Gallons
End Stick Inches
Amount Pumped
I
| Totalizer Reading |
Totalizer Reading
Totalizer Reading
Totalizer Reading
Totalizer Reading
Totalizer Reading
Totalizer Reading
Totalizer Reading
Today's Sum Of Totalizers
Previous Day's Sum Of
Totalizers
Amount Pumped Today
Delivery Record
Inches of Fuel Before Delivery
Gallons of Fuel Before
Delivery
(from tank chart)
Inches of Fuel After Delivery
Gallons of Fuel After Delivery
(from tank chart)
Gallons Delivered (Stick)
[Gallons After - Gallons Before]
Gross Gallons Delivered
(Receipt)
I
I
I
I
I
I
I
I
I
Operating And Maintaining UST Systems
13
-------
Monthly Inventory Record
Month/Year:
Tank Identification & Type Of Fuel:_
Facility Name:
Date Of Water Check:
Level Of Water (Inches):.
Date
1
2
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Start Stick Book
Inventory Gallons Gallons Inventory
(Gallons) Delivered Pumped (Gallons)
(+) (-) (=)
(+) (-) (=)
(+) (-) (=)
(+) (-) (=)
(+) (-) (=)
(+) (-) (=)
(+) (-) (=)
(+) (-) (=)
(+) (-) (=)
(+) (-) (=)
(+) (-) (=)
(+) (-) (=)
(+) (-) (=)
(+) (-) (=)
(+) (-) (=)
(+) (-) (=)
(+) (-) (=)
(+) (-) (=)
(+) (-) (=)
(+) (-) (=)
(+) (-) (=)
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(+) (-) (=)
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(+) (-) (=)
(+) (-) (=)
(+) (-) (=)
End Stick Inventory
(Inches)
(Gallons)
Total Gallons Pumped > Total Gallons Over Or Short >
Daily Over (+) Or
Short (-)
[End - Book]
Initials
Leak Check:
Drop the last two digits
from the Total Gallons
Pumped number and enter here:
Compare these
130
numbers
gallons
Is the total gallons over or short larger than leak check result? Yes No (circle one)
If your answer is Yes for 2 months in a row, notify the regulatory agency as soon as possible.
Keep This Piece Of Paper On File For At Least 1 Year
Operating And Maintaining UST Systems
14
-------
Manual Tank Gauging (for tanks 1,000 gallons or less only)
Description
Of Release
Detection
This method may be used only for tanks of 1.000 gallons or less capacity
meeting certain requirements. These requirements (tank size, tank
dimension, and test time) are found in the manual tank gauging record on
the next page. Manual tank gauging involves taking your tank out of
service for the testing period (at least 36 hours) each week, during which
time the contents of the tank are measured twice at the beginning and
twice at the end of the test period. The measurements are then compared
to weekly and monthly standards to determine if the tank is tight.
Have
Certification
For Your
Release
Detection
Method
None required.
Perform
These
O&M
Actions
Once a week, record two inventory readings at the beginning of the
test, allow the tank to sit undisturbed for the time specified in the
Manual Tank Gauging Record on the next page, and record two
inventory readings at the end of the test (use any form comparable to
the one on the following page).
Reconcile the numbers weekly and record them on a Manual Tank
Gauging Record (see the next page).
See Section 3 of this manual if your tank fails the weekly standard.
At the end of 4 weeks, reconcile your records for the monthly standard
and record the result on a Manual Tank Gauging Record (see the next
page).
See Section 3 of this manual if your tank fails the monthly standard.
Ensure that your measuring stick can measure to the nearest one-
eighth inch and can measure the level of product over the full range of
the tank's height. You should check your measuring stick periodically to
make sure that you can read the markings and numbers and that the
bottom of the stick is not worn.
Make sure employees who run, monitor, or maintain the release
detection system know exactly what they have to do and to whom to
report problems. Develop and maintain regular training programs for all
employees.
Keep
These
O&M
Records
Keep your manual tank gauging records for at least 1 year. Unless you
are recording actual release detection results weekly and at least every 30
days and maintaining records for at least 1 year, you are not doing leak
detection right.
Operating And Maintaining UST Systems
15
-------
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Description
Of Release
Detection
Manual Tank Gauging And Tank Tightness Testing
(for tanks 2,000 gallons or less only)
This temporary method combines manual tank gauging with periodic tank
tightness testing. It may be used only for tanks of 2.000 gallons or less capacity.
Manual tank gauging involves taking your tank out of service for the testing
period (at least 36 hours) each week, during which the contents of the tank are
measured twice at the beginning and twice at the end of the test period. The
measurements are then compared to weekly and monthly standards to determine
if the tank is tight. This combined method also includes tightness testing, a
sophisticated test performed by trained professionals.
NOTE: This combination method can only be used temporarily for up to ten years
after installing a new UST or for up to 10 years after your tank meets the
corrosion protection requirements.
Have
Certification
For Your
Release
Detection
Method
Make sure your tank tightness testing is certified for the types of tanks and
stored contents on which the tightness test is used. Most tightness test
methods are certified by a third party to verify that they meet specific performance
requirements set by regulatory agencies. If you don't have certified performance
claims, have the tightness tester provide them to you.
Perform
These
O&M
Actions
Once a week, record two inventory readings at the beginning of the test, allow
the tank to sit undisturbed for the time specified in the Manual Tank Gauging
Record on page 16, and record two inventory readings at the end of the test
(use any form comparable to the one on page 16).
Reconcile the numbers weekly and record them on a Manual Tank Gauging
Record (see page 16).
See Section 3 of this manual if your tank fails the weekly standard.
At the end of 4 weeks, reconcile your records for the monthly standard and
record the result on a Manual Tank Gauging Record (see page 16).
See Section 3 of this manual if your tank fails the monthly standard.
Conduct a tank tightness test at least every 5 years. This testing needs to be
conducted by a professional trained in performing tank tightness testing.
See Section 3 of this manual if your tank fails the tightness test.
Ensure that your measuring stick can measure to the nearest one-eighth inch
and can measure the level of product over the full range of the tank's height.
You should check your measuring stick periodically to make sure that you can read
the markings and numbers and that the bottom of the stick is not worn.
Make sure employees who run, monitor, or maintain the release detection
system know exactly what they have to do and to whom to report problems.
Develop and maintain regular training programs for all employees.
Keep
These
O&M
Records
a Keep your manual tank gauging records for at least 1 year. Unless you are
recording actual release detection results at least weekly and every 30 days and
maintaining records for at least 1 year, you are not doing leak detection right.
a Keep the results of your most recent tightness test.
G Keep all certification and performance claims for tank tightness test
performed at your UST site for at least 5 years.
Operating And Maintaining UST Systems
17
-------
Automatic Line Leak Detection (for pressurized piping only)
Description
Of Release
Detection
Automatic line leak detectors (LLDs) are designed to detect a catastrophic
release from pressurized piping. Automatic LLDs must be designed to detect
a leak at least as small as 3 gallons per hour at a line pressure of 10 psi within
1 hour. When a leak is detected, automatic LLDs must shut off the product
flow, restrict the product flow, or trigger an audible or visual alarm. NOTE:
Mechanical automatic LLDs need to be installed and operated as close as
possible to the tank (LLDs are designed to detect a leak, restrict flow, etc.
only between the detector and the dispenser).
Have
Certification
For Your
Release
Detection
Method
Make sure your release detection equipment is certified for the types of
piping and stored contents on which the release detection system is used.
Most manufacturers have their leak detection devices tested and certified by a
third party to verify that their equipment meets specific performance
requirements set by regulatory agencies. If you don't have certified performance
claims, have the manufacturer provide them to you.
Perform
These
O&M
Actions
a Frequently test your automatic LLDs according to the manufacturer's
instructions to make sure it is working properly. Don't assume that your
release detection system is working and never needs checking. Some
monitoring systems have a test or self-diagnosis mode.
a Periodically have a qualified LIST contractor, such as the vendor who
installed your release detection system, service all the system
components according to the manufacturers' service instructions.
Components can wear out and must be checked periodically. Many vendors
recommend or require this maintenance activity at least annually.
G See Section 3 of this manual if your LLD detects a leak.
G Make sure employees who run, monitor, or maintain the release detection
system know exactly what they have to do and to whom to report
problems. Develop and maintain regular training programs for all employees.
Keep
These
O&M
Records
For at least a year, keep the annual test that demonstrates that the LLD is
functioning properly.
If used for monthly monitoring, keep results of your release detection
system tests for at least 1 year. Your monitoring equipment system may
provide printouts that can be used as records. Unless you are recording actual
release detection results at least every 30 days and maintaining records for at
least 1 year, you are not doing leak detection right.
Keep all records of calibration, maintenance, and repair of your release
detection equipment for at least 1 year.
Keep all performance claims supplied by the installer, vendor, or
manufacturer for at least 5 years. These records include the certification of
your leak detection equipment described above.
Operating And Maintaining UST Systems
18
-------
Description
Of Release
Detection
Line Tightness Testing (for piping only)
This method uses a periodic line tightness test to determine if your piping
is leaking. Tightness testing can be performed by either a trained
professional or by using a permanently installed electronic system
(sometimes connected to an automatic tank gauging system).
Have
Certification
For Your
Release
Detection
Method
Make sure your line tightness testing or permanently installed
electronic system is certified for the types of piping and stored
contents on which the release detection system is used. Most tightness
test methods and release detection equipment have been tested and
certified by a third party to verify that the equipment or services meet
specific performance requirements set by regulatory agencies. If you don't
have certified performance claims, have the tightness tester or equipment
manufacturer provide them to you.
Perform
These
O&M
Actions
If line tightness testing is used for pressurized piping, the test must be
conducted at least annually.
If line tightness testing is used for suction piping, the test must be
conducted at least every three years. Safe suction piping as described at
the bottom of page 3 may not need release detection testing.
This tightness testing must be conducted by a professional trained in
performing line tightness testing or by using a permanently installed
electronic system.
See Section 3 of this manual if your piping fails the tightness test or if
the electronic system indicates a leak.
Periodically have a qualified LIST contractor, such as the vendor who
installed your release detection system, service all the system
components according to the manufacturers' service instructions.
Components can wear out and must be checked periodically. Many vendors
recommend or require this maintenance activity at least annually.
Make sure employees who run, monitor, or maintain the release
detection system know exactly what they have to do and to whom to
report problems. Develop and maintain regular training programs for all
employees.
Keep
These
O&M
Records
Keep results of your release detection system tests for at least 1 year.
Your monitoring equipment may provide printouts that can be used as
records. Unless you are recording actual release detection results at least
every 30 days and maintaining records for at least 1 year, you are not doing
leak detection right.
If you use a permanently installed electronic system, keep all records
of calibration, maintenance, and repair of your equipment for at least 1
year.
Keep all performance claims supplied by the installer, vendor, or
manufacturer for at least 5 years. These records include the certification
of your leak detection equipment described above.
Operating And Maintaining UST Systems
19
-------
30-Day Release Detection Monitoring Record
(May be used for monitoring wells, interstitial monitoring, and automatic tank gauging)
Release Detection Method:_
Facility Name:
Date
Your
Name
UST System (Tank & Piping)
(Enter N for No Release Detected or Y for a Suspected
Or Confirmed Release)
UST#
UST#
UST#
UST#
Keep This Piece Of Paper And Any Associated Printouts On File For
At Least 1 Year From The Date Of The Last Entry
Operating And Maintaining UST Systems
20
-------
Section 3 Suspected Or Confirmed Releases
You need to be fully prepared to respond to releases before they may occur. You need to know
what to do when release detection methods indicate a suspected or confirmed release. Be
ready to take the following steps, as appropriate.
Stop The Release
Take immediate action to prevent the release of more product.
Turn off the power to the dispenser and bag the nozzle.
Make sure you know where your emergency shutoff switch is located.
Empty the tank, if necessary, without further contaminating the site. You may need the
assistance of your supplier or distributor.
Contain The Release
Contain, absorb, and clean up any surface spills or overfills. You should keep enough absorbent
material at your facility to contain a spill or overfill of petroleum products until emergency
response personnel can respond to the incident. The suggested supplies include, but are not
limited to, the following:
Containment devices, such as containment booms, dikes, and pillows.
Absorbent material, such as kitty litter, chopped corn cob, sand, and sawdust. (Be sure you
properly dispose of used absorbent materials.)
Mats or other material capable of keeping spill or overfill out of nearby storm drains.
Spark-free flash light.
Spark-free shovel.
Buckets.
Reels of caution tape, traffic cones, and warning signs.
Personal protective gear.
Also, identify any fire, explosion, or vapor hazards and take action to neutralize these hazards.
Operating And Maintaining UST Systems 21
-------
Call For Help
Contact your local fire or emergency response authority. Make sure you have these crucial
telephone numbers prominently posted where you and your employees can easily see them.
See the next page for a form you can copy and post.
Report To Authorities
If you observe any of the following, contact your state's underground storage tank regulatory
authority to report a suspected or confirmed release as soon as possible (within 24 hours):
Any spill or overfill of petroleum that exceeds 25 gallons or that causes a sheen on nearby
surface water. (Spills and overfills under 25 gallons that are contained and immediately
cleaned up do not have to be reported. If they can't be quickly cleaned up they must be
reported to your regulatory agency.)
Any released regulated substances at the LIST site or in the surrounding area such as
the presence of liquid petroleum; soil contamination; surface water or groundwater
contamination; or petroleum vapors in sewer, basement, or utility lines.
Any unusual operating conditions you observe such as erratic behavior of the dispenser,
a sudden loss of product, or an unexplained presence of water in the tank. However, you
are not required to report if:
The system equipment is found to be defective, but not leaking, and is immediately
repaired or replaced.
Results from your release detection system indicate a suspected release. However, you are
not required to report if:
The monitoring device is found to be defective and is immediately repaired,
recalibrated, or replaced and further monitoring does not confirm the initial suspected
release, or
In the case of inventory control, a second month of data does not confirm the initial
result.
The next page contains a blank list for names and phone numbers of important contacts.
Fill out this information for your facility so that you will know who to call in case of an
emergency. Remove this page from the manual, copy it, fill it out, and post it in a prominent
place at your facility.
Copy the next page and update it often. Make sure everyone at your
LIST facility is familiar with this list of contacts.
Operating And Maintaining UST Systems 22
-------
Release Response
Important Contact Information
Contact Name
Phone #
State UST Agency:
Local UST Agency:
Fire Department:
Ambulance:
Police Department:
Repair Contractor:
Other Contacts:
Release Response Checklist
Stop the release: Take immediate action to prevent the release of more product. Turn off the
power to the dispenser and bag the nozzle. Make sure you know where your emergency shutoff
switch is located. Empty the tank, if necessary, without further contaminating the site.
Contain the release: Contain, absorb, and clean up any surface releases. Identify any fire,
explosion, or vapor hazards and take action to neutralize these hazards.
Call for help and to report suspected or confirmed releases: Contact your local fire or
emergency response authority. Contact your state's underground storage tank regulatory authority
within 24 hours.
Operating And Maintaining UST Systems
23
-------
Section 4 Spill And Overfill Protection
The purpose of spill and overfill protection
equipment is to eliminate the potential for a
release during fuel deliveries. The equipment
must be in working order and used properly to
provide adequate protection from spills and
overfills.
Even the best spill and overfill protection
equipment can become faulty over time if not
properly operated and maintained.
Only one gallon of fuel leaking each week from a
poorly maintained spill bucket can result in up to
195 tons of contaminated soil in a year.
Improper maintenance of the spill bucket at the
LIST site pictured below contributed to significant
contamination of soil and groundwater.
What's The Difference?
Spill Protection:
A spill bucket is installed at the fill
pipe to contain the drips and spills of
fuel that can occur when the delivery
hose is uncoupled from the fill pipe
after delivery.
Overfill Protection:
Equipment is installed on the LIST
that is designed to stop product flow,
reduce product flow, or alert the
delivery person during delivery
before the tank becomes full and
begins releasing petroleum into the
environment.
The following pages in this section focus on how you can routinely make sure your spill and
overfill equipment is operating effectively.
Operating And Maintaining UST Systems
24
-------
What Are The Basics Of Spill Protection?
Your USTs must have catchment basins also
called spill buckets installed at the fill pipe to
contain spills that may occur as a result of fuel
deliveries.
The spill bucket is designed to temporarily
contain product spills that might occur during fuel
delivery. To contain a spill, the spill bucket must
be liquid tight.
The spill bucket is not designed to contain
fuel for long periods of time. After each
delivery, empty and dispose of contents properly.
Spill buckets need to be large enough to contain
any fuel that may spill when the delivery hose is
uncoupled from the fill pipe. Spill buckets typically
range in size from 5 gallons to 25 gallons.
If you use a checklist for correct delivery practices
(see page 33), spills should be eliminated or
reduced to very small volumes that your spill
bucket can easily handle.
If your LIST never receives
deliveries of more than 25 gallons at
a time, the LIST does not need to
meet the spill protection
requirements. Many used oil tanks
fall into this category. Even though
these USTs are not required to have
spill protection, you should consider
using spill protection as part of good
LIST system management.
Examples Of Spill Buckets
How Do You Maintain Your Spill Bucket?
The checklist below provides information on properly maintaining your spill bucket.
Spill Bucket O&M Checklist
Keep your spill bucket empty of liquids.
Some spill buckets are equipped with a valve that allows you to drain accumulated fuel into your
LIST. Others may be equipped with a manual pump so fuel can be put into your LIST by pumping it
through the fill pipe. However, keep in mind that when you pump out or drain your spill bucket into
your LIST, any water and debris may also enter the LIST. If a basin is not equipped with drain
valve or pump, then any accumulated fuel or water must be removed manually and disposed of
properly.
Periodically check your spill bucket to remove any debris.
Debris could include soil, stones, or trash.
Periodically check to see if your spill bucket is still liquid tight.
Have a qualified LIST contractor inspect your spill bucket for signs of wear, cracks, or holes.
Based on this inspection, the contractor may suggest a test to determine if the spill bucket is tight
or needs repair or replacement.
Operating And Maintaining UST Systems
25
-------
What Are The Basics Of Overfill Protection?
Your USTs must have overfill protection installed to
help prevent the overfilling of tanks.
Three types of overfill protection devices are
commonly used:
Automatic shutoff devices
Overfill alarms
Ball float valves
Each of these forms of overfill protection is
discussed in detail on the following pages.
If your LIST never receives
deliveries of more than 25 gallons
at a time, the LIST does not need
to meet the overfill protection
requirements. Many used oil tanks
fall into this category. Even though
these USTs are not required to
have overfill protection, you should
consider using overfill protection
as part of good LIST system
management.
How Can You Help The Delivery Person Avoid Overfills?
To protect your business, you must make every effort to help the delivery person avoid overfilling
your LIST.
Use A Checklist On Correct Filling Practices
If correct filling practices are used, you will not exceed the USTs capacity see page 33 for a
checklist on correct filling procedures. Overfills are caused when the delivery person makes a
mistake, such as ignoring an overfill alarm.
Use Signs, Alert Your Delivery Person
The delivery person should know what type of overfill device is present on each tank at your
facility and what action will occur if the overfill device is triggered such as a visual and/or
audible alarm or that the product flow into the tank will stop or slow significantly.
Educate and alert your delivery person by placing a clear sign near your fill pipes, in plain
view of the delivery person. An example of such a sign follows on the next page.
Operating And Maintaining UST Systems
26
-------
Delivery Person Avoid Overfills
An overfill alarm is used for overfill protection at this facility.
Do not tamper with this alarm in any attempt to defeat its purpose.
When the tank is 90% full, the overfill alarm whistles and a red light flashes.
If you hear the alarm whistle or see the red light flashing,
Stop The Delivery Immediately!
Make Sure You Order The Right Amount Of Product
Also, you need to make sure you've ordered the right amount of product for delivery. Order
only the quantity of fuel that will fit into 90% of the tank. For example, if you have a 10,000 gallon
tank with 2,000 gallons already in the tank, you would order at the most a 7,000 gallon delivery
(90% of 10,000 is 9,000 gallons; subtracting the 2,000 gallons already in the tank leaves a
maximum delivery of 7,000 gallons). Use the checklist formula on page 33. Do your homework
right and you reduce the chance of overfills.
Operating And Maintaining UST Systems 27
-------
What Should You Do
To Operate And Maintain Your
Automatic Shutoff Device?
The automatic shutoff device is a mechanical device installed in
line with the drop tube within the fill pipe riser. It slows down and
then stops the delivery when the product has reached a certain
level in the tank. It should be positioned so that the float arm is
not obstructed and can move through its full range of motion.
When installed and maintained properly, the shutoff valve will
shut off the flow of fuel to the LIST at 95% of the tank's capacity
or before the fittings at the top of the tank are exposed to fuel.
You should not use an automatic shutoff
device for overfill protection if your LIST
receives pressurized deliveries.
Fill Pipe
Shutoff
Valve
Float
Basic O&M Checklist For Automatic Shutoff Devices
A qualified LIST contractor periodically checks to make sure that the automatic shutoff device is
functioning properly and that the device will shut off fuel flowing into the tank at 95% of the tank
capacity or before the fittings at the top of the tank are exposed to fuel:
Make sure the float operates properly.
Make sure there are no obstructions in the fill pipe that would keep the floating mechanism
from working.
You have posted signs that the delivery person can easily see and that alert the delivery person
to the overfill warning devices and alarms in use at your facility.
Operating And Maintaining UST Systems
28
-------
What Should You Do
To Operate And Maintain Your
Electronic Overfill Alarm?
This type of overfill device activates an audible and/or visual
warning to delivery personnel when the tank is either 90% full or is
within one minute of being overfilled. The alarm must be located
so it can be seen and/or heard from the LIST delivery location.
Once the electronic overfill alarm sounds, the delivery person has
approximately one minute to stop the flow of fuel to the tank.
Electronic overfill alarm devices have no mechanism to shut off or
restrict flow. Therefore, the fuel remaining in the delivery hose after
the delivery has been stopped will flow into the tank as long as the
tank is not yet full.
Basic O&M Checklist For Overfill Alarms
A qualified LIST contractor periodically checks your electronic overfill alarm to make sure that it
is functioning properly and that the alarm activates when the fuel reaches 90% of the tank
capacity or is within one minute of being overfilled:
Ensure that the alarm can be heard and/or seen from where the tank is fueled.
Make sure that the electronic device and probe are operating properly.
You have posted signs that the delivery person can easily see and that alert the delivery
person to the overfill warning devices and alarms in use at your facility.
Operating And Maintaining UST Systems
29
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What Should You Do
To Operate And Maintain
Your Ball Float Valve?
The ball float valve also called a float vent valve is
installed at the vent pipe in the tank and restricts vapor flow
in an LIST as the tank gets close to being full. The ball float
valve should be set at a depth which will restrict vapor flow
out of the vent line during delivery at 90% of the UST's
capacity or 30 minutes prior to overfilling. $
As the tank fills, the ball in the valve rises, restricting the ^ ' %'
flow of vapors out of the LIST during delivery. The flow rate '"". j:"'
of the delivery will decrease noticeably and should alert the
delivery person to stop the delivery.
For ball float valves to work properly, the top of the tank must be air tight so that vapors cannot
escape from the tank. Everything from fittings to drain mechanisms on spill buckets must be
tight and be able to hold the pressure created when the ball float valve engages.
You should not use a ball float valve for overfill protection
if any of the following apply:
Your LIST receives pressurized deliveries.
Your LIST system has suction piping.
Your LIST system has single point (coaxial) stage 1 vapor recovery.
Basic O&M Checklist For Ball Float Valves
A qualified LIST contractor periodically checks to make sure that the ball float valve is functioning
properly and that it will restrict fuel flowing into the tank at 90% of the tank capacity or 30 minutes
prior to overfilling:
Ensure that the air hole is not plugged.
Make sure the ball cage is still intact.
Ensure the ball still moves freely in the cage.
Make sure the ball still seals tightly on the pipe.
You have posted signs that the delivery person can easily see and that alert the delivery person
to the overfill warning devices and alarms in use at your facility.
Operating And Maintaining UST Systems
30
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Spill
Bucket
Spill And Overfill O&M Checklist
Keep your spill bucket empty of liquids.
Some spill buckets are equipped with a drainage valve which allows you to drain
accumulated fuel into your LIST. Others can be equipped with a manual pump so fuel can
be put into your LIST by pumping it through the fill pipe. However, keep in mind that when
you pump out or drain your spill bucket into your LIST, any water and debris may also enter
the LIST. If a spill bucket is not equipped with a drain valve or pump, then any accumulated
fuel or water must be removed manually and disposed of properly.
a Periodically check your spill bucket to remove any debris.
Debris could include soil, stones, or trash.
a Periodically check to see if your spill bucket is still liquid tight.
Have a qualified LIST contractor inspect your spill bucket for signs of wear, cracks, or holes.
Based on this inspection, the contractor may suggest a test to determine if the spill bucket is
tight or needs repair or replacement.
Automatic
Shutoff
Devices
a A qualified LIST contractor periodically checks to make sure that the automatic shutoff
device is functioning properly and that the device will shut off fuel flowing into the tank at
95% of the tank capacity or before the fittings at the top of the tank are exposed to fuel:
Make sure the float operates properly.
Make sure that there are no obstructions in the
mechanism from working.
pipe that would keep the floating
a You have posted signs that the delivery person can easily see and that alert the delivery
person to the overfill warning devices and alarms in use at your facility.
Overfill
Alarms
a A qualified LIST contractor periodically checks your electronic overfill alarm to make sure
that it is functioning properly and that the alarm activates when the fuel reaches 90% of the
tank capacity or is within one minute of being overfilled:
Ensure that the alarm can be heard and/or seen from where the tank is fueled.
Make sure that the electronic device and probe are operating properly.
a You have posted signs that the delivery person can easily see and that alert the delivery
person to the overfill warning devices and alarms in use at your facility.
Ball
Float
Valves
a A qualified LIST contractor periodically checks to make sure that the ball float valve is
functioning properly and that it will restrict fuel flowing into the tank at 90% of the tank
capacity or 30 minutes prior to overfilling:
Ensure that the air hole is not plugged.
Make sure the ball cage is still intact.
Ensure the ball still moves freely in the cage.
Make sure the ball still seals tightly on the pipe.
a You have posted signs that the delivery person can easily see and that alert the delivery
person to the overfill warning devices and alarms in use at your facility.
Operating And Maintaining UST Systems
31
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What Are Your Responsibilities For
Correct Filling Practices?
As an owner or operator you are responsible for ensuring that releases due to spilling or
overfilling do not occur during fuel delivery.
As part of this responsibility, you must:
Ensure the amount of product to be delivered will fit into the available empty space in the
tank; and
Ensure the transfer operation is monitored constantly to prevent overfilling and spilling.
One way help ensure the above requirements are met is to follow the checklist on the next page.
The checklist describes activities to perform before, during, and after a fuel delivery.
Operating And Maintaining UST Systems
32
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Correct Filling Checklist
What To Do
Before Your
USTs Are
Filled
Post clear signs that alert delivery persons to the overfill devices and alarms in use at your
facility.
Make and record accurate readings for product and water in the tank before fuel delivery.
Order only the quantity of fuel that will fit into 90% of the tank.
Remember, the formula for determining the maximum amount of gasoline
to order is:
(Tank capacity in gallons X 90% ) Product currently in tank = Maximum
amount of fuel to order
Example: (10,000 gal X 0.9 ) 2,000 gal = 7,000 gal maximum amount
to order
Ensure fuel delivery personnel know the type of overfill device present at the tank and what
actions to perform if it activates. For example, use sample sign on page 27 of this chapter.
Review and understand the spill response procedures.
Verify that your spill bucket is empty, clean, and will contain spills.
What To Do
While
Your
USTs
Are Being
Filled
Keep fill ports locked until the fuel delivery person requests access.
Have an accurate tank capacity chart available for the fuel delivery person.
The fuel delivery person makes all hook-ups. The person responsible for monitoring the
delivery should remain attentive and observe the entire fuel delivery, be prepared to stop
the flow of fuel from the truck to the LIST at any time, and respond to any unusual
condition, leak, or spill which may occur during delivery.
Have response supplies readily available for use in case a spill or overfill occurs (see
Section 3).
Provide safety barriers around the fueling zone.
Make sure there is adequate lighting around the fueling zone.
What To Do
After
Your USTs
Are Filled
Following complete delivery, the fuel delivery person is responsible for disconnecting all
hook-ups.
Return spill response kit and safety barriers to proper storage locations.
Make and record accurate readings for product and water in the tank after fuel delivery.
Verify the amount of fuel received.
Make sure fill ports are properly secured.
Ensure the spill bucket is free of product and clean up any small spills.
Operating And Maintaining UST Systems
33
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Section 5 Corrosion Protection
To prevent leaks, all parts of your LIST system that are underground and routinely contain
product need to be protected from corrosion. The LIST system includes the tank, piping,
and ancillary equipment, such as flexible connectors, fittings, and pumps. Unprotected
metal LIST components can deteriorate and leak when underground electrical currents act
upon them.
One way to protect LIST components from corrosion
is to make them with nonmetallic, noncorrodible
materials, such as USTs made of (or clad or
jacketed with) fiberglass reinforced plastic (FRP) or
other noncorrodible materials as illustrated by the
FRP tank on the right. Noncorrodible USTs like these
do not require O&M for corrosion protection.
UST components made from metal, however, that
routinely contain product and are in direct contact
with the ground need corrosion protection provided
by cathodic protection or (in some cases) lining the interior of the tank, as described below.
These options require O&M.
Note: Metal tanks or piping installed after December 22, 1988 must have a dielectric
coating (a coating that does not conduct electricity) in addition to the cathodic
protection described below.
Cathodic Protection Using Sacrificial
Anode Systems
Sacrificial anodes are buried and attached to UST
components for corrosion protection as illustrated on
the right by an anode attached to a tank. Anodes are
pieces of metal that are more electrically active than
steel, and thus they suffer the destructive effects of
corrosion rather than the steel they are attached to.
Cathodic Protection Using Impressed Current
Systems
An impressed current system as shown on the right
uses a rectifier to provide direct current through anodes to
the tank or piping to achieve corrosion protection. The
steel is protected because the current going to the steel
overcomes the corrosion-causing current flowing away
from it. The cathodic protection rectifier must always
be on and operating to protect your UST system from
corrosion.
Grade
sed
Current Path
Operating And Maintaining UST Systems
34
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Corrosion Protection Using Internal Lining
Of The Tank
This corrosion protection option applies only to tanks
installed before December 22, 1988. These older tanks
can be internally lined by trained professionals to meet
the corrosion protection requirements as shown on the
right, in which a professional follows industry codes to
safely and effectively line a tank's interior.
It may help you to see your corrosion protection options displayed in the following table.
Corrosion Protection Choices
Option
Noncorrodible Material
Steel Tank Clad Or Jacketed
With A Noncorrodible
Material
Coated And Cathodically
Protected Steel Tanks Or
Piping
Cathodically Protected
Noncoated Steel Tanks Or
Piping
Internal Lining Of Tanks
Combination Of Cathodically
Protected Steel And Internal
Lining Of Tanks
Other Methods Used To
Achieve Corrosion Protection
Description
The tank or piping is constructed of noncorrodible material.
Examples of cladding or jacket material include fiberglass and
urethane. Does not apply to piping.
Steel tank and piping is well-coated with a dielectric material and
Cathodically protected.
This option is only for steel tanks and piping installed before
December 22, 1988. Cathodic protection is usually provided by an
impressed current system.
This option is only for steel tanks installed before December 22,
1988. A lining is applied to the inside of the tank. Does not apply to
piping.
This option is only for steel tanks installed before December 22,
1988. Cathodic protection is usually provided by an impressed
current system. Does not apply to piping.
If you have tanks or piping that do not meet any of the descriptions
above, check with your state LIST agency to see if your LIST system
meets the requirements for corrosion protection. You also will need
to ask about the operation, maintenance, and record keeping
requirements applicable to this type of LIST system.
Note: In addition to tanks and piping, all other metal components in direct contact with the
ground that routinely hold product such as flexible connectors, swing joints, fittings, and
pumps must also be Cathodically protected.
Use the O&M checklist on the next page. Following the checklist look
for record keeping forms and discussions of special corrosion
protection situations.
Operating And Maintaining UST Systems
35
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Sacrificial
Anode
Cathodic
Protection
Systems
Basic O&M Checklist For Corrosion Protection
You need to have a periodic test conducted by a qualified corrosion tester to make
sure your cathodic protection system is adequately protecting your LIST system.
This test needs to be conducted:
Q Within 6 months of installation.
Q At least every 3 years after the previous test.
Q Within 6 months after any repairs to your LIST system.
Make sure the professional tester is qualified to perform the test and follows a
standard code of practice to determine that test criteria are adequate.
If any test indicates your tanks are not adequately protected, you need to have a
corrosion expert examine and fix your system.
Testing more frequently can catch problems before they become big problems.
o You need to keep the results of at least the last two tests on file. See the next
page for a cathodic protection test record keeping form.
Impressed
Current
Cathodic
Protection
Systems
You need to have a periodic test conducted by a qualified corrosion tester to make
sure your cathodic protection system is adequately protecting your LIST system.
This test needs to be conducted:
Q Within 6 months of installation.
Q At least every 3 years after the previous test.
Q Within 6 months after any repairs to your LIST system.
Make sure the professional tester is qualified to perform the test and follows a
standard code of practice to determine that test criteria are adequate.
If any test indicates your tanks are not adequately protected, you need to have a
corrosion expert examine and fix your system.
Testing more frequently can catch problems before they become big problems.
a You need to keep the results of at least the last two tests on file. See next page
for a cathodic protection test record keeping form.
a You need to inspect your rectifier at least every 60 days to make sure that it is
operating within normal limits.
This inspection involves reading and recording the voltage and amperage readouts
on the rectifier. You or your employees can perform this periodic inspection.
Make sure your cathodic protection professional provides you with the rectifier's
acceptable operating levels so you can compare the readings you take with an
acceptable operating level. If your readings are not within acceptable levels, you
must contact a cathodic protection professional to address the problem.
o You need to keep records of at least the last 3 rectifier readings. See page 39 for
a 60-Day Inspection Results record keeping form.
G You should have a trained professional periodically service your impressed
current system.
a Never turn off your rectifier!
Internally
Lined
Tanks
Within 10 years after lining and at least every 5 years thereafter, the lined tank must be
inspected by a trained professional and found to be structurally sound with the lining
still performing according to original design specifications. Make sure the professional
performing the inspection follows a standard code of practice.
Keep records of the inspection (as specified in industry standards for lining
inspections).
Operating And Maintaining UST Systems
36
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Record For Periodic Testing Of Cathodic Protection Systems
(for use by a qualified cathodic protection tester)
Test Date: / / Facility Name/I D:_
Note: Provide site sketch as directed on the back of this page.
Cathodic Protection (CP) Tester Information:
Name: Phone Number:,
Address:
Testing must be conducted by a qualified CP tester. Indicate your qualifications as a CP tester:
Identify which of the following testing situations applies:
Q Test required within 6 months of installation of CP system (installation date was _/_/__)
Q Test required at least every 3 years after installation test noted above
Q Test required within 6 months of any repair activity - note repair activity and date below:
Indicate which industry standard you used to determine that the cathodic protection test criteria
are adequate:
Cathodic Protection Test Method Used (check one)
100 mV Cathodic Polarization Test
-850 mV Test (Circle 1 or 2 below)
1) Polarized Potential (instant off) 2) Potential with CP Applied, IR Drop Considered
Note: All readings taken must meet the -850 mV criteria to pass
Other Accepted Method (please describe):
Is the cathodic protection system working properly? Yes No
(circle one)
If answer is no, go to the directions at the bottom on the back of this page.
My signature below affirms that I have sufficient education and experience to be a cathodic
protection tester; I am competent to perform the tests indicated above; and that the results on
this form are a complete and truthful record of all testing at this location on the date shown.
CP Tester Signature: Date:
Keep This Paper On File For At Least Six Years
Operating And Maintaining UST Systems 37
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Site Sketch: Provide a rough sketch of the tanks and piping, the location of each CP
test, and each voltage value obtained (use space below or attach separate drawing).
Voltage readings through concrete or asphalt do not provide accurate readings and are
not acceptable. Perform sufficient testing to evaluate the entire LIST system.
If CP system fails test, you must have a corrosion expert fix the system.
If the answer was no, indicating that your CP system is not working, you must have a
corrosion expert investigate and fix the problem. A corrosion expert has additional
training, skills, and certification beyond the corrosion tester who filled out the bulk of
this form. A corrosion expert must be:
Accredited/certified by NACE International (The Corrosion Society) as a
corrosion specialist or cathodic protection specialist, or
Be a registered professional engineer with certification or licensing in corrosion
control.
As long as you have the LIST, be sure you keep a record that clearly documents what
the corrosion expert did to fix your CP system.
Keep This Paper On File For At Least Six Years
Operating And Maintaining UST Systems 38
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60-Day Inspection Results For
Impressed Current Cathodic Protection Systems
Facility Name:_
Amp Range Recommended:_
Voltage Range Recommended:_
Date
Your Name
Voltage
Reading
Amp
Reading
Is Your System Running
Properly? (Yes/No)
If the rectifier voltage and/or amperage output(s) are outside the
recommended operating levels, contact a cathodic protection expert to
address the problem.
Never turn off your rectifier.
Keep this record for at least 6 months after the date of the last reading.
Operating And Maintaining UST Systems
39
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Some Special Corrosion Protection Situations
What If You Have An STI-P3 Tank With A PP4 Test Station?
If you have a PP4 test station installed with an STI-P3 tank, you may perform the
periodic testing of your cathodic protection system by using the meter provided to you
with the PP4 test station.
Don't forget to record the result of the reading and keep at least the last two results.
If your test readings do not pass, you must take action to correct the problem. Call
your installer and ask that the corrosion expert who designed the system examine it
and correct the problem.
What If You Combine Internal Lining And Cathodic Protection?
If you chose the combination of internal lining and cathodic protection for meeting
corrosion protection requirements on your LIST, you may not have to meet the periodic
inspection requirement for the lined tank. However, you must always meet the
requirements for checking and testing your cathodic protection system as described in
the basic O&M checklist for corrosion protection on page 36. The 10-year and
subsequent 5-year inspections of the lined tank are not required if the integrity of the
tank was ensured when cathodic protection was added. You should be able to show an
inspector documentation of the passed integrity assessment.
Example 1:
If you have cathodic protection and internal lining applied to your tank at the same
time, periodic inspections of the lined tank are not required because an integrity
assessment of the tank is required prior to adding the cathodic protection and internal
lining.
Example 2:
If you had cathodic protection added to a tank in 1997 that was internally lined in 1994
and the contractor did not perform an integrity assessment of the tank at the time
cathodic protection was added (or you cannot show an inspector documentation of the
passed integrity assessment), then periodic inspections of the lined tank are required
because you cannot prove that the tank was structurally sound and free of corrosion
holes when the cathodic protection was added. The lined tank needs to be periodically
inspected because the lining may be the only barrier between your gasoline and the
surrounding environment.
What If You Have A Double Walled Steel UST With Interstitial Monitoring And
Cathodic Protection?
If you have a cathodically protected double walled steel tank and you use interstitial
monitoring capable of detecting a breach in both the inner and outer wall or ingress of
product and water as your method of leak detection, then you should monitor your
cathodic protection system within six months of installation and following any activity
that could affect the CP system.
Operating And Maintaining UST Systems 40
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If you are using impressed current cathodic protection, you still need to perform the 60-
day checks of your rectifier to make sure it is operating within normal limits.
Testing the cathodic protection system more frequently may help catch problems
quicker.
If your test readings do not pass, you must take action to correct the problem. Call
your installer and ask that the corrosion expert who designed the system examine it
and correct the problem.
Don't forget to keep at least the last two results of your cathodic protection testing.
Do All LIST Sites Need Corrosion Protection?
A corrosion expert may be able to determine the soil at an LIST site is not conducive to
corrosion and will not cause the tank or piping to have a release during its operating
life. If so, you must keep a record of that corrosion expert's analysis for the life of the
tank or piping to demonstrate why your LIST has no corrosion protection.
Operating And Maintaining UST Systems 41
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Section 6 Frequent Walk-Through Inspections
You should conduct basic walk-through inspections of your facility at least monthly to
make sure your essential equipment is working properly and you have release response
supplies on hand.
These inspections would not be as thorough as following the O&M checklists presented
earlier in this booklet, but they can provide a quick overview you can do more often than the
longer checklists. You might think of this level of inspection as similar to automobile
dashboard indicators that provide us with status warnings like low battery.
When you perform your walk-through inspection you should quickly check at least the
following:
Release Detection System: Is your release detection equipment working properly?
For example, did you run a quick self-test of the ATG to verify it's working properly? Or
did you check your manual dip stick to make sure it's not warped or worn?
Spill Buckets: Are spill buckets clean, empty, and in good condition?
Overfill Alarm (if you have one): Is your overfill alarm working and easily seen or
heard?
Impressed Current Cathodic Protection System (if you have one): Is your cathodic
protection system turned on? Are you checking your rectifier at least every 60 days?
Fill And Monitoring Ports: Are covers and caps tightly sealed and locked?
Spill And Overfill Response Supplies: Do you have the appropriate supplies for
cleaning up a spill or overfill?
In addition, good LIST site management should also include the following quick visual
checks:
Dispenser Hoses, Nozzles, And Breakaways: Are they in good condition and
working properly?
Dispenser And Dispenser Sumps: Any signs of leaking? Are the sumps clean and
empty?
Piping Sumps: Any signs of leaking? Are the sumps clean and empty?
If you find any problems during the inspection, you or your LIST contractor need to take
action quickly to resolve these problems and avoid serious releases.
A frequent walk-through checklist is provided for your use on the next page.
Operating and Maintaining UST Systems 42
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Frequent Walk-Through Inspection Checklist
Date Of Inspection
Release Detection System: Inspect for
proper operation.
Spill Buckets: Ensure spill buckets are clean
and empty.
Overfill Alarm: Inspect for proper operation.
Can a delivery person hear or see the alarm
when it alarms?
Impressed Current System: Inspect for
proper operation.
Fill And Monitoring Ports: Inspect all
fill/monitoring ports and other access points to
make sure that the covers and caps are tightly
sealed and locked.
Spill And Overfill Response Supplies:
Inventory and inspect the emergency spill
response supplies. If the supplies are low,
restock the supplies. Inspect supplies for
deterioration and improper functioning.
Dispenser Hoses, Nozzles, And
Breakaways: Inspect for loose fittings,
deterioration, obvious signs of leakage, and
improper functioning.
Dispenser And Dispenser Sumps: Open
each dispenser and inspect all visible piping,
fittings, and couplings for any signs of leakage.
If any water or product is present, remove it
and dispose of it properly. Remove any debris
from the sump.
Piping Sumps: Inspect all visible piping,
fittings, and couplings for any signs of leakage.
If any water or product is present, remove it
and dispose of it properly. Remove any debris
from the sump.
Your initials in each box below the date of the inspection indicate the device/system was inspected
and OK on that date.
Operating And Maintaining UST Systems
43
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Section 7 For More Information
This section identifies LIST program contacts and other resources to help answer
your questions and provide you with information about good LIST management.
Internet Resources
Government Links
# Directory of State UST Program Contacts: http://www.epa.gov/oust/states/statcon1.htm
# Directory of State UST Program Internet Sites:
http://www.epa.gov/oust/states/stateurl.htm
# U.S. Environmental Protection Agency's Office of Underground Storage Tanks Home
Page: http://www.epa.gov/oust. To go directly to the compliance assistance section of
the Home page go to: http://www.epa.gov/swerust1/cmplastc/index.htm
# Tanks Subcommittee of the Association of State and Territorial Solid Waste
Management Officials (ASTSWMO): http://www.astswmo.org/programs tanks.htm
# New England Interstate Water Pollution Control Commission (NEIWPCC):
http://www.neiwpcc.org
Professional And Trade Association Links
# American Petroleum Institute (API): http://www.api.org
# American Society of Testing and Materials (ASTM): http://www.astm.org
# Fiberglass Tank and Pipe Institute (FTPI): http://www.fiberglasstankandpipe.com
# NACE International - The Corrosion Society: http://www.nace.org
# National Fire Protection Association (NFPA): http://www.nfpa.org
# Petroleum Equipment Institute (PEI): http://www.pei.org
# Steel Tank Institute (STI): http://www.steeltank.com
# Underwriters Laboratories (UL): http://www.ul.com
Free Informative Publications Available
The publications listed below are free and available from the U.S. Environmental Protection
Agency (EPA). You can access these publications in the following ways.
# Go to EPA's web site at http://www.epa.gov/oust/pubs/index.htm to order, read, or
download documents online.
# Write and ask for free publications by addressing your request to EPA's publication
distributor: National Service Center for Environmental Publications (NSCEP), Box
42419, Cincinnati, OH 45242.
# For free copies, call EPA's publication distributor's toll-free number at (800) 490-9198.
Or go to http://www.epa.gov/nscep/ordering.htm for additional ordering methods.
Catalog Of EPA Materials On USTs
An annotated list of UST materials, including ordering information. Most of the leaflets, booklets,
videos, and software items listed provide UST owners and operators with information to help them
comply with federal UST requirements (32 pages).
Operating And Maintaining UST Systems 44
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Musts For USTs: A Summary Of Federal Regulations For Underground Storage Tank Systems
Plain language summary of federal LIST requirements for installation, release detection, spill, overfill,
and corrosion protection, corrective action, closure, reporting and recordkeeping. Updated & revised
1995 (36 pages).
Model Underground Storage Tank Environmental Results Program Workbook
Workbook, which states can modify to reflect their laws, helps improve owner and operator compliance
with LIST regulations. Contains general information about ERP; instructions on how to use the
workbook; regulatory requirements, best management practices, and compliance checklists for USTs;
and draft forms and worksheets in the appendices (164 pages). (Available on web only)
UST Systems: Inspecting And Maintaining Sumps And Spill Buckets - Practical Help And
Checklist
Manual presents recommended inspection guidelines and best management practices for UST system
sumps and spill buckets. Includes safety considerations; a general introduction to the kinds of sumps;
basic maintenance procedures for sumps and spill buckets; and a sump and spill bucket inspection
checklist (16 pages).
Straight Talk On Tanks: Leak Detection Methods For Petroleum Underground Storage Tanks
Explains federal regulatory requirements for leak detection and briefly describes allowable leak
detection methods. Updated & revised 2005 (28 pages).
Getting The Most Out Of Your Automatic Tank Gauging System
Trifold leaflet provides UST owners and operators with a basic checklist they can use to make sure their
automatic tank gauging systems work effectively and provide compliance with federal leak detection
requirements.
Doing Inventory Control Right: For Underground Storage Tanks
Booklet describes how owners and operators of USTs can use inventory control and periodic tightness
testing to temporarily meet federal leak detection requirements. Contains recordkeeping forms (16
pages).
Manual Tank Gauging: For Small Underground Storage Tanks
Booklet provides simple, step-by-step directions for conducting manual tank gauging for tanks 2,000
gallons or smaller. Contains recordkeeping forms (12 pages).
List Of Leak Detection Evaluations For UST Systems
A summary of specifications, based on third-party certifications, for over 275 systems that detect leaks
from USTs and their piping. Each summary provides information on such items as certified detectable
leak rate/threshold, test period duration, product applicability, calibration requirements, restrictions on
the use of the device, and so on. (Available on web only)
List Of Integrity Assessment Evaluations For USTs
A list of integrity assessment procedures that have been successfully evaluated and certified by a
qualified independent third party to meet specified performance criteria. (Available on web only)
Introduction To Statistical Inventory Reconciliation: For Underground Storage Tanks
Booklet describes how Statistical Inventory Reconciliation (SIR) can meet federal leak detection
requirements (12 pages).
Closing Underground Storage Tanks: Brief Facts
Trifold leaflet presents "brief facts" on properly closing USTs in order to comply with federal closure
requirements.
Underground Storage Tanks: Requirements And Options
Trifold leaflet alerts UST owners and operators who are "nonmarketers" (who do not sell stored
petroleum) that they need either to find alternatives to managing their USTs or to make decisions about
UST compliance.
Dollars And Sense: Financial Responsibility Requirements For Underground Storage Tanks
Booklet summarizes the "financial responsibility" required of UST owners and operators (16 pages).
List Of Known Insurance Providers For Underground Storage Tanks
Provides UST owners and operators with a list of insurance providers who may be able to help them
comply with financial responsibility requirements by providing suitable insurance mechanisms (12
pages). (Available on web only)
Operating And Maintaining UST Systems 45
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Financing Underground Storage Tank Work: Federal And State Assistance Programs
Booklet identifies potential sources of financial assistance to cover the costs of upgrading,
replacing, or closing an LIST, or of cleaning up an LIST release. Updated and revised March 1999
(23 pages).
State Regulatory Agency Contacts
See EPA's web site at http://www.epa.gov/oust/states/statcon1.htm for state underground
storage tank program contact information.
Operating And Maintaining UST Systems 46
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United States Solid Waste And EPA 510-B-05-002
Environmental Protection Emergency Response September 2005
Agency 5401G www.epa.gov
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