&EPA
United States
Environmental Protection
Agency
Solid Waste And
Emergency Response
5403W
EPA510-B-95-009
September 1995
Introduction To Statistical
Inventory Reconciliation
For Underground Storage Tanks
'"conclusive
i Printed on Recycled Paper
-------
Contents
Why You Should Read This Booklet 1
How Does SIR Work? 2
Necessary Equipment 3
Gauge Stick Or Other Gauges 3
Pastes For Finding Fuel Or Water 3
Tank Chart 3
Calibrated Dispensing Meters 4
Forms 4
SIR Reporting And Recordkeeping 4
What You Should Provide To The Vendor 4
What The Vendor Should Provide To You 4
What You Should Keep On File 5
What To Do When You Get A 'FAIL' 7
What To Do When You Get An 'INCONCLUSIVE' 7
Answers To Frequently Asked Questions 8
"Can SIR be used on manifolded tanks?" 8
"Can SIR be used as an annual tightness test?" 8
"Why did a SIR vendor fail my tank for a leak under 0.2 gph?" 8
"What is the difference between
'qualitative' and 'quantitative' SIR methods?" 9
"What is this 'estimated leak rate,' 'threshold,' and 'MDL' stuff all about?" 9
"Can SIR be used as a monthly test of my piping, too?" 10
"How much does SIR cost?" 10
"There are so many vendors. How do I choose?" 10
Publications And Videos About USTs 11
State UST Program Office Numbers inside back cover
-------
Why You Should Read This Booklet
Federal and state laws require underground storage tank systems (USTs) to
have leak detection. One of the available leak detection methods is Statistical
Inventory Reconciliation (SIR). In this method, a trained professional uses
sophisticated computer software to conduct a statistical analysis of inventory,
delivery, and dispensing data.
SIR can allow the owner or operator of an LIST facility to meet leak detection
requirements without an extensive outlay of capital, using only the equipment
that most facilities have readily at hand—a tank stick and a tank chart used for
inventory control. The SIR analysis itself is usually provided as a service by
vendors who charge a monthly fee based on the number of tanks.
This booklet provides basic information on the method—what it is, how it works,
factors that impact data quality—to assist you in determining if SIR is
appropriate to your needs.
If you need information on federal leak detection requirements and the various
methods of leak detection available to you, see Straight Talk on Tanks. For a
free copy, call the U.S. Environmental Protection Agency's (EPA's) toll-free
Hotline at 800 424-9346 and ask for publication EPA 510-K-95-003.
U* Dune** Mnitefc For
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Introduction To SIR 1
-------
To many people, SIR
may seem like magic.
But it's based on sound
mathematical principles.
A 'FAIL' does not
necessarily mean
your system is
leaking, but you
must still notify
your local LIST
agency.
How Does SIR Work?
On the face of it, SIR looks very similar to old-fashioned inventory control—the
owner or operator, using simple equipment, tracks tank volumes, deliveries,
and sales. However, the similarity ends there. Simple inventory control is
relatively imprecise. Depending on your system throughput, you could be losing
hundreds of gallons every month without realizing anything is wrong!
By contrast, SIR analysis can be very sensitive and accurate. A SIR vendor can
take the same inventory data and analyze them for releases so small that many
would go unnoticed with inventory control. By using a month's worth of good
tank data, it is possible for SIR methods to detect a release of just over 11/4
pints per hour (that's about 145 gallons per month) from a tank or its product
lines 95 times out of a hundred.
The mechanics of how SIR works are beyond the scope of this booklet. SIR
vendors actually use a variety of statistical tools to evaluate inventory data, and
no two vendors' methods are exactly alike—the information they collect and the
results they provide can vary. Still, for fundamental release detection purposes,
there are only three possible bottom-line responses for any SIR test: PASS,
FAIL, or INCONCLUSIVE. These bottom-line responses are described below and
on the following pages.
PASS—According to the analyzed data, the LIST system tests tight.
FAIL—Analyzed data indicate a loss of product from the system or an influx of
groundwater. However, a FAIL does not necessarily indicate that your system is
leaking. A FAIL may indicate miscalibrated dispensers, inaccurately metered
deliveries, or stolen product. There is also a chance that a FAIL is a false alarm.
If you receive a FAIL, you must first notify your local LIST regulatory
agency. Then, you should explore possible reasons for the FAIL (see page 7).
Keep your local LIST agency informed as to your findings.
INCONCLUSIVE—Analyzed data cannot make the call. There is a chance that the
information provided to the SIR vendor is so bad that it is not possible to make
a determination. This often can be traced back to poor tank sticking or
bookkeeping practices (for example, a new hire who has received inadequate
training). Whatever the reason, an INCONCLUSIVE result means, in effect, that
you have failed to perform leak detection on the LIST in question for that
month. You are in violation of federal leak detection requirements. Contact your
state LIST program office to find out local policy on how INCONCLUSIVE results
are handled. See page 7 for additional information.
Introduction To SIR 2
-------
Necessary Equipment
One of the major attractions of SIR for LIST owners and operators is that it
does not require a large, up-front investment of capital—the primary cost is
subscribing to the SIR vendor's services. The equipment needed to use the
method is usually already found on-site at most LIST facilities.
Gauge Stick Or Other Gauges
A gauge stick, made of wood or other non-sparking material, is used to
measure the depth of liquid in the LIST. Typically, such sticks are marked or
notched in 1/8-inch increments starting with the bottom of the stick. It is
important that the stick be in good condition. Sticks that have worn ends, cut-
off ends, worn-off numbers, or worn-off varnish coatings are not acceptable
and should be replaced.
Other forms of gauges can also be used if they are available and in good
operating condition. Automatic tank gauges, for instance, can simplify
measuring tank volumes. (Keep in mind, of course, that some automatic tank
gauging systems can serve as acceptable monthly tank leak detection methods
by themselves.)
Whatever form of gauge you choose to use, you must follow the SIR vendor's
instructions carefully to gather useful data. For instance, many providers of SIR
services require that the tank measurements are made to the nearest 1/8-inch.
If you fail to follow the vendor's instructions, you may end up with inconclusive
test results.
Good sticking practices
are essential to good SIR
analyses.
Pastes For Finding Fuel Or Water
If you use a gauge stick, you can improve the quality of your readings if you
use a fuel-sensitive paste smeared over about six inches of the stick where you
expect the fuel level to be. The paste changes color where it comes into
contact with the fuel.
Similarly, you can use a water-sensitive paste on the end of the stick to monitor
for the presence of water in the bottom of the tank. While water in the tank can
come with your deliveries or as a result of condensation of moisture inside the
tank, it can also come from groundwater leaking in through holes or through
loose fittings high in your tank.
Tank Chart
The strapping chart used to convert stick measurements into gallons must be
the right one for the tank. The chart should have stick measurements listed to
1/8 of an inch to minimize math errors that occur when using charts marked off
to the nearest inch. SIR vendors can quickly determine if the chart is
inappropriate to your tank, and will often generate a proper one for your tank.
Introduction To SIR 3
-------
Calibrated Dispensing Meters
A poorly calibrated totalizer can produce bad data that may be mistaken for
some types of releases. While many SIR vendors can identify this pattern as a
possible cause of a FAIL, it is wise to avoid the problem entirely. Keep your
dispensers in good operating condition and have them periodically recalibrated
as recommended by your equipment manufacturer and as required by state
and local weights and measures agencies.
Forms
The SIR vendor typically provides forms on which daily stick readings, sales,
and deliveries are recorded. These forms often resemble the inventory sheets
usually maintained at LIST facilities. In some instances, SIR vendors may allow
submission of the data on a facility's own inventory sheets. Some vendors may
also permit submission of data in electronic format, such as computer
spreadsheets.
SIR Reporting And Recordkeeping
What You Should Provide To The Vendor
Although SIR vendors may ask for a variety of information, some of the more
common elements include:
• Tank size (capacity, diameter, and length).
• Tank type, material of construction, and manufacturer.
• Product type.
• Date each stick measurement was taken.
• Daily opening stick measurement and volume.
• Daily closing stick measurement and volume.
• Daily sales volume.
• Gross deliveries over the course of the month.
• Thirty days of observations.
What The Vendor Should Provide To You
Vendors supply different levels of service to their clients. You will need to
consult with individual vendors to find the collection of features you desire.
However, there is a core of reporting elements that should be common to all
SIR analyses (see sample on page 6). These include:
Introduction To SIR 4
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• Clear and timely reporting of results in terms of PASS, FAIL, or
INCONCLUSIVE.
• Complete and annotated copies of inventory records used in the analysis,
showing such problems as errors in delivery records or bad measurements
tossed out by the test.
• Suggestions as to the likely cause of any test failure or inconclusive result.
• Instructions on follow-up actions to be taken in the event of a FAIL or
INCONCLUSIVE (for example: "Notify your local LIST agency of a failed test
result within 24 hours").
Also, in the case of quantitative testing methods, the form should report the
calculated leak rate in gallons per hour and the leak threshold at which a leak
would be declared based on the data provided for each tank. The minimum
detectable leak rate (MDL) for your data may also be provided by some
vendors. (See page 9.)
Your SIR vendor may also supply you with other useful information and
services beyond the basics itemized above. SIR vendors may further provide:
• Off-site storage of leak detection records.
• Potential reasons for a FAIL other than a release of product:
^ Apparent product theft
^ Missed product delivery entry
^ Suspected totalizer miscalibration
• Potential reasons and possible solutions for any INCONCLUSIVE results.
• Possible location of leak within the system.
• Assessment of tank sticking practices.
• Special tank-specific strapping charts for those tanks needing them (such
as tilted tanks and odd-sized tanks).
Pass
Fail
Inconclusive
What You Should Keep On File
The minimal recordkeeping requirements for facilities using SIR are the same
as for other release detection methods:
• All written performance claims pertaining to the SIR method used and the
manner in which those claims were justified or tested by the vendor (such
as a third-party evaluation of the method) must be kept on file for five years
from the date you started using the method at the facility.
• The monthly SIR reports, along with the results of any other sampling,
testing, or monitoring, must be kept for at least one year.
Introduction To SIR 5
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Sample Cover Sheet Of A Quantitative SIR Report
Monthly Statistical Inventory Reconciliation Report
Sammy's SIR Services
12739 N. South St.
Nowhere, USA
For the Period of: October 1-31,1995
Facility: Joe's Gas & Grill
123 E. West Street
Anytown, XX
Simple, concise
description of
system status.
October
1995
Tank ID
001
0021
0032
Product
Premium Unleaded
Regular Unleaded
Diesel
*
System Status
PASS
FAIL!
INCONCLUSIVE!
Measured
Leak Rate
0.037
0.735
0.120
Threshold
0.09
0.13
0.17
MDL
0.18
0.26
0.34
(All rates are in gallons per hour)
Tank number 002 has an unexplained loss of product. You must notify your local
underground storage tank agency of the failed test within 24 hours and take appropriate
steps to confirm or refute.
2 Tank number 003 could not be analyzed to the necessary performance levels. The tank has
failed to meet federal leak detection requirements for the period in question. Improved tank
sticking methods may help. See report detail for more information.
What to do if
problems are
discovered.
Detailed copies
of inventory
records included.
Copies of your analyzed inventory records accompany this report.
Keep this report on file for at least one year.
Questions? Call xxx-xxx-xxxx.
Introduction To SIR 6
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• Records of equipment calibration and maintenance must be kept for at
least one year. Any schedules of required calibration and maintenance
provided by the SIR vendor must be kept for five years from the date you
began using the method at the facility.
You should check with your local LIST agency to determine if there are any
additional recordkeeping requirements.
What To Do When You Get A 'FAIL'
When your LIST system fails a SIR monthly analysis, you must report the
incident to your local LIST program agency within 24 hours or whatever time
period your local agency requires.
At the same time, you need to begin to investigate the cause of the failed test.
Within seven days, you must determine the cause of the FAIL and report back
to your local agency. Your SIR vendor may, on the basis of the test results, be
able to provide you with areas to examine, such as a miscalibrated totalizer.
You must have any defective equipment repaired or replaced immediately.
If the FAIL cannot be linked to equipment problems, you must have the system
tightness tested or the site checked for evidence of a release (such as
sampling in the excavation zone). You must report the results to the local
agency. If a release is confirmed, the agency will provide instructions for any
necessary cleanup action.
What To Do When You Get An 'INCONCLUSIVE'
An INCONCLUSIVE means you have failed to meet leak detection requirements.
However, the steps you must take upon getting an INCONCLUSIVE depend on
the requirements of your local LIST agency. In some instances, you may be
required to perform a system tightness test to be sure the LIST is not leaking.
In others, you may be given an additional month to come into compliance. Be
sure to know what is required locally. A list of LIST agency phone numbers can
be found in the back of this booklet.
An INCONCLUSIVE should in no way be taken as demonstrating the failings of a
given vendor's method—it is inherent to all methods. Even if vendors use
terms other than "inconclusive," they represent the same condition.
In all cases, you will want to double check your operating procedures to see
what caused the INCONCLUSIVE and prevent its recurrence. Your SIR vendor will
provide assistance in locating the problem and offer suggestions to improve
your data collection.
HELP!
An 'INCONCLUSIVE'
means that you
effectively have no
leak detection for
that month.
Introduction To SIR 7
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Answers To Frequently Asked Questions
"Can SIR be used on manifolded tanks?"
SIR methods can be used on tank systems that have multiple tanks linked
together by siphon bars. This generally requires that each tank in the
manifolded system be individually stuck for inventory measurements. As with
single tank systems, no product deliveries or sales should be made during the
time the sticking and totalizer readings are taking place.
Check with your local LIST agency to determine if it permits use of SIR on
manifolded systems or has additional requirements.
"Can SIR be used as an annual tightness test?"
For facilities that are still using inventory control with tightness testing as their
means of leak detection, it is possible to use SIR in place of more traditional
tightness tests such as an overfill test. The performance requirements for a
tightness test are more stringent than for monthly monitoring methods,
however, so be sure to check that your SIR vendor can meet those
requirements. Tanks must be tested for releases of 0.1 gph with a probability of
detection (PD) of 95% and a probability of false alarm (PFA) of 5%. To act as a
replacement for piping tightness testing, the requirements are even more
rigorous—the SIR method must be able to detect releases of 0.08 gph with a
PD of 95% and a PFA of 5%. To find releases of this magnitude, SIR vendors
often need several months of good data.
Be sure to contact your local LIST agency to see if it allows use of SIR as an
annual test. Also, remember that inventory control with tightness testing can
only be used for a limited time. You may want to consider moving now to an
approved method of monthly monitoring, such as automatic tank gauge
systems, monitoring wells, or monthly SIR analyses.
There is no such
thing as an
"acceptable" leak.
Any leak will cost
you in the long run
and should be
fixed.
"Why did a SIR vendor fail my tank for a leak under 0.2 gph?"
First of all, it is a misconception that any leakage into the environment is
acceptable. Even small leaks over long periods of time can result in extensive
contamination that can cost you substantial time and money for soil and
groundwater clean up.
Secondly, the performance standard by which leak detection methods
(including SIR) are measured says that leaks of 0.2 gph must be detected in 95
out of 100 times. Further, false alarms should not happen more than five times
in a hundred. What this means is that the SIR vendor looks at the estimated
leak rate determined for a tank—say 0.15 gph—and asks the question "What is
the likelihood that the true leak rate is actually 0.2 gph?" On the basis of a
statistical analysis of the data you provide the vendor, the SIR vendor can
make the call as to whether your system tests tight or not.
Introduction To SIR 8
-------
Typically, a FAIL will be called for apparent releases of around 0.1 gph. See the
question on page 10 on 'estimated leak,' 'threshold,' and 'MDL' for additional
information.
"What is the difference between 'qualitative' and 'quantitative' SIR
methods?"
Although there are many methods that are employed by vendors performing
SIR analyses, they break down into two major classifications: qualitative and
quantitative.
Qualitative methods do not provide estimated leak rates. When a vendor's
qualitative method is evaluated to demonstrate its capability of meeting the
EPA performance standard, it simply reports results in terms of PASS, FAIL, or
INCONCLUSIVE. These results are compared with the evaluator's knowledge of
which tanks are leaking in a test set of tank records.
Quantitative methods also categorize results in terms of PASS, FAIL, or
INCONCLUSIVE, but they go further by actually providing a numerical estimate of
the leak rate, typically in gallons per hour. In evaluating the performance of the
method, the evaluator compares the method's estimates with the actual leak
rates imposed on the test set of tank records.
NOTE: EPA neither
certifies nor
approves any leak
detection vendor
or method. Method
evaluations are
generally done by
third-party testing
organizations.
"What is this 'estimated leak rate,' 'threshold,' and 'MDL' stuff all about?"
These are rather technical statistical terms often used by quantitative SIR
vendors to provide their clients with more detailed information on their
analyses. They provide insight beyond the simple PASS, FAIL, and
INCONCLUSIVE, including just how bad a leak appears to be (estimated leak
rate) and how good the data are that you have been providing to the vendor for
analysis (MDL).
The estimated leak rate is the number a quantitative SIR method comes up
with for the amount of product your tank appears to be losing. The number is
usually expressed in gallons per hour since the EPA regulations use those
units.
This estimated leak rate is rarely, if ever, zero. All tanks, whether leaking or
tight, will generally show a leak rate. The question is, is this leak rate
significant? This is where the threshold comes in.
The threshold is basically an action level leak rate. That is, if the estimated
leak rate exceeds the threshold leak rate, the SIR vendor declares a FAIL. It is
important to note that the threshold is not a fixed number, such as 0.1 gph.
Instead, it is typically the value associated with a fixed percentage set to the
probability of false alarms (that is, declaring a leak on a system that is actually
tight) the SIR vendor is willing to accept. EPA's regulations allow no more than
5% of analyses to turn out to be false alarms. However, many SIR vendors
consider one failure in twenty analyses to be too high and set their thresholds
to a 1% probability of false alarm.
SIR vendors offer
a diverse number
of supplemental
reporting options.
Look over what
each has to offer
and choose the
one that best
meets your
needs.
Introduction To SIR 9
-------
NOTE: State
programs may
require a different
form of testing for
lines. Check with
your local UST
agency.
Finally, the MDL is the Minimum Detectable Leak. The MDL is the smallest
leak rate the vendor can determine for the data provided with a PD of 95% or
better. The MDL is tied to the threshold and is usually twice the threshold leak
rate. The MDL must be less than or equal to the EPA performance standard
rate of 0.2 gph at a PD of 95% and a PFA of 5% in order to make a PASS/FAIL
call. If the MDL exceeds the performance standard, your system cannot be
given a PASS—an INCONCLUSIVE is the best you can get.
Fortunately, most vendors who provide this level of detail often provide a "plain
English" translation as well.
"Can SIR be used as a monthly test of my piping, too?"
Yes. SIR is a test of the entire UST system. Losses are reported regardless of
their origins. So, whether you are losing product as a result of a tank leak, a
line leak, miscalibrated equipment, or theft, a FAIL will result if the estimated
leak rate exceeds the threshold for calling a leak. Remember, though, that if
you are using pressurized lines, you will also need to have an automatic flow
restrictor, shutoff device, or continuous alarm in place to fully meet piping leak
detection requirements.
"How much does SIR cost?"
Unlike most other methods, SIR has no installation costs and equipment costs
are minimal—a well-calibrated dispensing meter and a good stick are about all
you need. While vendor costs will vary, monthly monitoring for a facility with
three USTs costs about $800 to $1200 per year. SIR used as an annual
tightness test costs about $200 to $600. (These figures are based on estimates
in 1995.)
"There are so many vendors. How do I choose?"
Whether you have decided to invest in SIR services or other leak detection
methods, the basic steps are similar:
• Request information from the vendors you are interested in. Compare their
services, option packages, and prices to see which vendors best meet your
needs. Ask for references and check them.
• Contact your local UST agency to see if it has a certification program for
leak detection vendors. Consult the agency's list of certified service
providers.
• Contact the Better Business Bureau to see if there have been any
complaints lodged against the vendor.
Introduction To SIR 10
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Publications And Videos About USTs
PUBLICATIONS
TITLE
AVAILABLE FREE FROM
Musts For USTs: A Summary Of The Federal Regulations For
Underground Storage Tank Systems
Booklet clearly summarizes federal LIST requirements for installation,
release detection, spill, overfill, and corrosion protection, corrective
action, closure, reporting and recordkeeping. (About 40 pages.)
Normas Y Procedimientos Para T.S.A.
Spanish translation of Musts For USTs. (About 40 pages.)
Straight Talk On Tanks: Leak Detection Methods For Petroleum
Underground Storage Tanks
Booklet explains federal regulatory requirements for leak detection
and briefly describes allowable leak detection methods. (About 30
pages.)
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 meet federal leak
detection requirements. Contains reporting forms. (About 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
reporting forms. (About 12 pages.)
Don't Wait Until 1998: Spill, Overfill, And Corrosion Protection For
Underground Storage Tanks
Information to help owners and operators of USTs meet the 1998
deadline for compliance with requirements to upgrade, replace, or
close USTs installed before December 1988. (About 16 pages.)
Dollars And Sense: Financial Responsibility Requirements For
Underground Storage Tanks
Booklet clearly summarizes the "financial responsibility" required of
UST owners and operators by federal UST regulations. (About 16
pages.)
An Overview Of Underground Storage Tank Remediation Options
Fact sheets provide information about technologies that can be used
to remediate petroleum contamination in soil and groundwater.
(About 26 pages.)
Controlling UST Cleanup Costs
Fact sheet series on the cleanup process includes: Hiring a
Contractor, Negotiating the Contract, Interpreting the Bill, Managing
the Process, and Understanding Contractor Code Words. (About 10
pages.)
Federal Register Reprints
Not simple summaries, these reprints are extensive records of the
rulemaking process including technical information, explanatory
preambles, and the rules as they appear in the Code of Federal
Regulations. Reprints dated 9/23/88; 10/26/88; 11 /9/89; 5/2/90; and
2/18/93. Over 300 pages.
You can call EPA's toll-free
RCRA/Superfund Hotline at
800 424-9346 and order free
copies. Just identify the titles
you want. Or you can write and
ask for titles by addressing your
requests to:
NCEPI
Box42419
Cincinnati, OH 45242
Or you can fax your order to
NCEPI at513 891-6685.
Introduction To SIR 11
-------
Publications And Videos About USTs
PUBLICATIONS
TITLE
AVAILABLE FROM
Doing It Right
Illustrates proper installation of underground tanks and piping for
installation crews. Part 1: Tanks (24 minutes); Part 2: Piping (16
minutes). Cost: $25
Doing It Right II: Installing Required UST Equipment
Illustrates installation of spill and overfill equipment, observation
wells, and piping leak detection (23 minutes). Cost: $60
Doing It Right and Doing it Right II Set Cost: $75
Keeping It Clean: Making Safe And Spill-Free Motor Fuel Deliveries
Making pollution-free deliveries to USTs. Includes Stage 1 vapor
recovery, overfill prevention and spill containment. For fuel tanker
drivers and UST owner/operators (25 minutes). Cost: $60
Petroleum Leaks Underground
How liquids and vapors move in the subsurface and why early
response to leaked petroleum is so important. Part 1: How Liquids
Move (14 minutes);
Part 2: How Vapors Move (15 minutes). Cost: $75
Straight Talk On Leak Detection
Overview of the leak detection methods available for complying
with federal regulations. Part 1: Straight Talk From Tank Owners
(owners address the problems of UST compliance [5 minutes]); Part
2: Straight Talk On Leak Detection (30 minutes). Cost: $40
Environmental Media Center
Box30212
Bethesda, MD20814
301 654-7141
800 522-0362
Visa and MasterCard accepted
Tank Closure Without Tears: An Inspector's Safety Guide
Focuses on explosive vapors and safe tank removal (30 minutes).
Video and Booklet Cost: $35; Booklet: $5
What Do We Have Here?: An Inspector's Guide To Site Assessment At
Tank Closure
Inspecting sites for contamination where tanks have been
removed.
Part 1: Site Assessment Overview (30 minutes); Part 2: Field Testing
Instruments At A Glance (14 minutes); Part 3: Soil And Water
Sampling At A Glance (7 minutes). Video and Booklet Cost: $45;
Booklet: $5
Searching For The Honest Tank: A Guide To UST Facility Compliance
Inspection
Covers major steps of UST inspections from protocols and equipment
to enforcement and followup; from cathodic protection to leak
detection. Directed at inspectors, yet also helpful to owners and
operators (30 minutes). Video and Booklet Cost: $40; Booklet: $5
New England Interstate
Environmental Training Center
ATTN:VIDEOS
2 Fort Road
South Portland, ME 04106
207 767-2539
Introduction To SIR 12
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State UST Program Office Numbers
Alabama Dept. of Env.
Management
334271-7986
Alaska Dept. of Env.
Conservation
907 465-5203
Arizona Dept. of Env.
Quality
602 207-4324
Arkansas Dept. of
Pollution Control &
Ecology
501 570-2801
California State Water
Resources Control Board
916227-4313
Colorado State Oil
Inspection Office
303 620-4300
Connecticut Dept. of Env.
Protection
203 424-3374
DC Env. Regulatory
Administration
202 645-6080
Delaware Dept. of Natural
Resources & Env. Control
302 323-4588
Florida Dept. of Env.
Regulation
904 488-3935
Georgia Dept. of Natural
Resources
404 362-2687
Hawaii Dept. of Health
808 586-4226
Idaho Dept. of Health &
Welfare
208 334-0542
Illinois Office of State Fire
Marshall
217785-5878
Indiana Dept. of Env. Mgt.
317233-6418
Iowa Dept. of Natural
Resources
515281-8135
Kansas Dept. of Health &
Env.
913296-1678
Kentucky Div. of Waste
Mgt.
502564-6716
Louisiana Dept. of Env.
Quality
504 765-0243
Maine Dept. of Env.
Protection
207 287-2651
Maryland Dept. of Env.
410631-3442
Massachusetts Dept. of
Public Safety
617351-6000
Michigan Dept. of Natural
Resources
517373-8168
Minnesota Pollution
Control Agency
612297-8609
Mississippi Dept. of Env.
Quality
601 961-5171
Missouri Dept. of Natural
Resources
314751-7428
Montana Dept. of Health &
Env. Sciences
406 444-5970
Nebraska State Fire
Marshal
402471-9465
Nevada Dept. of Conserv.
SNatural Resources
702 687-5872
New Hampshire Dept. of
Env. Services
603271-3644
New Jersey Dept. of Env.
Protection
609984-3156
New Mexico Env. Dept.
505827-0188
New York Dept. of Env.
Conservation
518457-4351
North Carolina Pollution
Control Branch
919733-8486
North Dakota Div. of Waste
Mgt.
701 328-5166
Ohio Dept. of Commerce
614752-7938
Oklahoma Corporation
Commission
405521-3107
Oregon Dept. of Env.
Quality
503 229-5774
Oregon Dept. of Env.
Quality
503 229-6642
Pennsylvania Dept. of Env.
Resources
717772-5599
Rhode Island Dept. of Env.
Mgt.
401 277-2234
South Carolina Dept. of
Health and Env.Control
803 734-5335
South Dakota Dept. of Env.
& Nat. Resources
605 773-3296
Tennessee Dept. of Env. &
Conservation
615532-0945
Texas Natural Resources
Conservation Comm.
512239-2000
Utah Dept. of Env. Quality
801 536-4100
Vermont Dept. of Natural
Resources
802 244-8702
Virginia Dept. Env. Quality
804527-5189
Virginia Dept. Env. Quality
804527-5189
Washington Dept. of
Ecology
206407-7211
West Virginia Div. of Env.
Protection
304 558-6371
Wisconsin Dept. of
Industry, Labor & Human
Relations
608 267-7605
Wisconsin Dept. of Natural
Resources
608 267-7560
Wyoming Dept. of Env.
Quality
307 777-7096
U.S. TERRITORIES
American Samoa Env.
Protection Agency
684 633-2304
Commonwealth of
Northern Mariana Islands
Div. of Env. Quality
607 234-6984
Guam Env. Protection
Agency
671 646-8863
Puerto Rico Env. Quality
Board
809767-8109
Virgin Islands Div. of Env.
Protection
809 774-3320
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&EPA
United States
Environmental Protection
Agency
5403W
Washington, DC 20460
Official Business
Penalty for Private Use
$300
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