United States                EPA 510-F-96-005
Environmental Protection         September 1996
Agency

Solid Waste And Emergency Response (5403G)

     A               For
    State
                Printed on Recycled Paper

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United States
Environmental Protection
Agency
Washington, DC 20460
(54Q3G)

Official Business
Penalty far Private Use
BULK RATE
Postage and Fees Paid
EPA
PeimitNo.G-35

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The U.S. Environmental Protection
Agency (EPA) has developed a guide
to help underground storage tank
regulators understand the portion of an
underground storage tank corrective
action plan that proposes free product
recovery technologies. How To
Effectively Recover Free Product At
Leaking Underground Storage Tank
Sites,: A Guide For State Regulators
(510-R-96-001) focuses on appropriate
technology use, taking into
consideration site-specific conditions.
The Guide is designed to answer three
basic questions:

«   .   Is free product recovery
       necessary?
»      Has an appropriate method
       been proposed for free product
       recovery?
«      Does the free product recovery
       plan provide a technically
       sound approach to remediating
       the site?

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Leaking underground storage tanks
may result in a subsurface
accumulation of a separate phase
liquid that will flow into wells or
excavations.  Confirmation of a release
from an underground storage tank that
is regulated by U.S. EPA Subtitle I
initiates the corrective action process.
For sites where free product is present,
regulators will need to;

Step 1.    Review the free product
          recovery plans.
Step 2.    Evaluate the need for free
          product recovery.
Step 3i    Evaluate the remedial
          objectives of the site.
Step 4.    Evaluate the design of the
          free product recovery
          system.
Step 5.    Evaluate the operation,
          maintenance, and
          monitoring approach.

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 AudSenee

 EPA has distributed copies of this
 Guide to its regional offices and to
 states and their regional offices in
 order to reach every state regulator
 who reviews corrective action plans.
 Consultants, engineers, lenders, public
 health professionals, environmental
 education centers, and others involved
 in the cleanup or remediation of a
leaking underground storage tank site
may also be interested in this Guide.

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Organization

The Guide is organized as follows:

I.    Introduction provides an over-
     view of the entire manual.

II.   The Corrective Action Process
     discusses how the free product
 ;    recovery actions fit into the over-
 i    all corrective action process.

HI.  Behavior Of Hydrocarbons In
     The Subsurface discusses the
     relevant properties of hydro-
     carbons and geologic media for
     free product recovery.

IV.  Methods For Evaluating
     Recoverability Of Free Product
     discusses the methods used to
     estimate the extent and volume
     of free product.

V.   Hydrocarbon Recovery
 :    Systems/Equipment describes
     free product recovery tech-
     nologies, mechanical compo-
     nents, operation, and monitoring
     requirements.

The discussions include calculations,
figures, tables, flow charts, and a list of
selected key references,  A glossary of
relevant terms and a list of references
cited in each chapter appear at the end
of the Guide.

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                             Ordering information

                             This Guide is available for $ 17.00
                             from the U.S. Government Printing
                             Office (GPO), Superintendent of
*                            Documents, P.O. Box 371954,
                             Pittsburgh, PA 15250-7954.  Order
                             stock number 055-000-00553-2. An
                             order form is included in this leaflet.

                             If you have any questions about this
                             document, please call EPA's
                             RCRA/Superfund Hotline. The
                             Hotline is open Monday through
                             Friday from 8:30 a.m. through 7:30
                             p.m. EST.  The toll-free number is
                             800 424-9346; for the hearing
                             impaired, the number is TDD 800 553-
                             7672.

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