UN3TED STATES ENVIRONMENTAL PROTECTION AGENCY
                                WASHINGTON, D.O. 20460
                                      Man Code 5401G.                EPA 510-B-97-004
                               APR  25  1997
                                                                          OFFICE OF
                                                                    SOLID WASTE AND EMERGENCY
                                                                          RESPONSE
MEMORANDUM

SUBJECT:   List of Leak Detection Evaluations for Underground Storage Tank Systems -
             Third Edition
FROM:       Amia^6pkinTWbick;Direct6r
              Office of Underground Storage Tanks

TO:          All Interested Parties

       The purpose of this cover memo is to transmit the attached list and to provide additional
information about its appropriate use and about EPA's involvement with it.  Previous editions of
the List of Leak Detection Evaluations have been very helpful tools to the underground storage
tank (UST) community, and we are pleased to make this new edition available.

The List and Its Use
       The List contains information on underground storage tank and piping leak detection
system evaluations that have met certain criteria.  The evaluations must have been performed by
an independent third party,  in accordance with EPA or equivalent test procedures, and with leak
rates blind to the evaluator. The List includes evaluations that followed either an EPA protocol, a
national voluntary consensus standard, or other accepted test procedures developed by an
independent third party.

       The List of Leak Detection Evaluations is based  on reviews by an independent work
group consisting of state and EPA UST program staff, and therefore is not an EPA list.
Furthermore, neither EPA nor the work group approve or will approve leak detection systems.
Approval or acceptance of systems is the responsibility of the implementing agency — in most
cases the state environmental agency, which should be contacted regarding the approval or
acceptance of leak detection systems in a particular area.

       There is an Under Review section that lists evaluations about which the work group has
received information, and is either reviewing or has requested additional information needed to
clarify the evaluation. Listing of an evaluation as "under review" in no way implies that the
evaluation does or does not meet the review criteria.

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       For the first time, this edition includes a separate listing of protocols under which listed
evaluations were performed. Also included is a user survey; after familiarizing yourself with the
List, please take a moment to provide your feedback.  Finally, the first of several optional
maintenance checklists have been added; these can help users get the most out of leak detection
systems.

       We believe that the List will continue to be of great benefit to those throughout the UST
community. However, please remember that it has inherent limitations.  It is based on
evaluations, which are one-time events, often conducted in a lab setting according  to protocols
that do not test all aspects of a system.  Therefore, appearance on the List  does not mean that a
particular system will work or comply with regulations at any particular site.  For these reasons,
the List cannot be the final word; you should base your decisions on all available sources of
information.

Distribution
       The attached List is the  Third Edition. Because the second edition was made available
only electronically, this is only the Second Printing.  The work group updates the List
periodically, as new evaluations and information are reviewed.

       While paper updates are not frequently distributed, the most recent version is available for
downloading in electronic form, in two ways:
*      Via the Internet —http://www.epa.gov/OUST/pubs/index.htm
*      Via EPA's Cleanup Information Network -- "CLU-IN" -- electronic bulletin board.
       Access CLU-IN by modem at (301)589-8366, with settings 8-N-l. Once in, join the
       UST/LUST Special Interest Group (#3), then go to File Directory 11 (Tanks and Piping).
       The system operator is at (301)589-8368.
For help with these two means of access,  call Hal White at (703)603-7177. The files^ which are
large, areLDLISTWD.EXE (Microsoft Word 6.0, original version of List) and LDLISTWP.EXE
(WordPerfect 5.1). Type the filename to  expand these executable compressed files into useable
form.

       To save paper and expense we limit the distribution of paper copies of this  large
document.  We send paper copies to vendors, associations, EPA UST offices, state UST offices,
and others who request it, one copy to each organization at each location.  In addition, a limited
number of printed copies will be made available through EPA's National  Center for Environmental
Publications, (800)490-9198; mention document number EPA 510-B-97-004.

Additional information
       If you have an evaluation to submit, please see the memorandum from the work group's
chair found in Appendix B.  If you have comments about a particular listing, please contact the
appropriate team leader for that type of evaluation; the members and teams are also in Appendix
B.  Comments and new information are welcomed.

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       I hope that this package is helpful to you.  If you have questions about our distribution of
the List, please contact David Wiley. He may be reached by phone at (703)603-7178, by fax at
(703)603-9163, by e-mail at wiley.david@epamail.epa.gov, or by U.S. Mail at the letterhead
address above.
Attachment: List of Leak Detection Evaluations for Underground Storage Tank Systems
Third Edition

cc:     State UST Contacts
       UST/LUST Regional Program Managers
       Region 10 Operations Offices' UST/LUST Contacts
       Vendors appearing on List of Leak Detection Evaluations
       Anthony Tafuri, NRMRL Edison
       Members of Work Group on Leak Detection Evaluations
       Larry Magni, American Petroleum Institute
       Marc Katz, National Association of Convenience Stores
       Bob Renkes, Petroleum Equipment Institute
       John Huber, Petroleum Marketers Association of America
       Mark Morgan, Petroleum Transportation & Storage Association
       Service Station Dealers of America
       Tom Osborne, Society of Independent Gasoline Marketers of America

cc (cover only):
       Regional Program Managers' Supervisors
       KathyNam, OGC
       OUST Program Directions Team
       OUST Desk Officers

DCSWERAl\Q:\Share\OUST\TecMsue\LD EvaB.WP

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              THIRD EDITION
            SECOND PRINTING
LIST OF LEAK DETECTION EVALUATIONS FOR
   UNDERGROUND STORAGE TANK (UST)
                SYSTEMS
               April 18,1997
   Inventory Control or
   Manual Tank Gauging
                  Tank Tightness Test
                   Inventory Probe tor
                   Automatic Tank Gauging

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                        DISCLAIMER
This list  of  Leak Detection  Evaluations was prepared by a  work group
consisting of State and EPA members and is limited to evaluations of leak
detection equipment and procedures, or systems, that the work group  has
completed review of, and that were conducted by an independent third-party
evaluator with leak rates blind to the vendor.  This list includes evaluations
conducted in accordance with either EPA Standard  Test  Procedures  for
Evaluating Leak  Detection Methods (EPA/530/UST-90/004 through 010) or
other acceptable protocols. The list includes an Under Review category,  for
evaluations which the work group's  review could not be finalized prior to
publication.  The listing of system evaluations as "under review" in no way
implies that the evaluations  do or do not meet  the criteria for  which
evaluations are reviewed.

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L/ST OF LEAK DETECTION EVALUATIONS USER SURVEY

1.1 work in the following state(s))	
2. My main job function is (circle one)
Regulatory (Circle M for manager, I for inspector)
Financial responsibility insurance/assurance agency
Leak Detection Vendor (manufacturer and/or service co.)
Tank owner/operator
Other (specify)        •	
3. I have used the list while working with UST systems and release detection. (YES)  (NO)

Comments:

4. • I have reviewed the national List of Leak Detection Evaluations and find it (circle all that apply)
Easy to follow      Good format    Useful for my work       Up to date    Complete     Accurate

Difficult to follow    Poor format     Of no use for my work    Outdated     Incomplete   Inaccurate

Comments:                                             .

5. I would benefit from receiving training on the use and applications of the list. (YES)  (NO)

Comments:

6. I feel the National Work Group List of Leak Detection Evaluations has improved upon the quality of leak  '
detection equipment and its use in my state(s). (YES) (NO)

Comments:

7. I would like for the National Work Group on Leak Detection Evaluations to continue to focus on improving
the quality of leak detection equipment and services by continuing to review third party evaluations.
(YES)  (NO)

Comments:

8. I still have the following concerns about leak detection equipment in my state (circle all that apply).

Equipment quality
Improper equipent installation
Improper equipment servicing/calibration/maintenance (Owner or Service Co.)
Inadequate field services (tank & line tightness testing, sample collection, etc.)
Inadequate regulatory authority for addressing vendors/service companies which provides services of
questionable quality.

Comments:

9. I have the following suggestions on how the Work Group could provide further assistance to me in
addressing my concerns related to leak detection.

10. I have the following additional comments on the list (negative, positive, and suggestions for improvement
are welcomed, attach  additional pages if more space is needed).

PLEASE SEND  COMPLETED SURVEY TO:
CURT JOHNSON, ALABAMA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT
P.O. BOX 301463, MONTGOMERY, AL 36130-1463

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                              TABLE OF CONTENTS

PART I - LEAK DETECTION TEST METHODS AND EQUIPMENT                      1
(Alphabetical by test method, then by vendor, next by equipment model,
and finally by leak rate or operating principle.)

AUTOMATIC ELECTRONIC LINE LEAK DETECTOR                               2

AUTOMATIC MECHANICAL LINE LEAK DETECTOR                               5

AUTOMATIC TANK GAUGING SYSTEM                                        6

CONTINUOUS IN-TANK LEAK DETECTION SYSTEM                               10

DOUBLE WALLED TANK TIGHTNESS TEST                                     11

LARGE DIAMETER PIPELINE LEAK ETECTOR                                   12

LARGE TANK AUTOMATIC TANK GAUGING SYSTEM                              13

LINE TIGHTNESS TEST METHOD                                            14

LIQUID-PHASE INTERSTITIAL DETECTOR                                     15

LIQUID-PHASE OUT-OF-TANK PRODUCT DETECTOR                             17

NON-VOLUMETRIC TANK TIGHTNESS TEST METHOD (TRACER)                    19

NON-VOLUMETRIC TANK TIGHTNESS TEST METHOD (ULLAGE)                    20

NON-VOLUMETRIC TANK TIGHTNESS TEST METHOD (VACUUM)                    21

PRESSURE/VACUUM INTERSTITIAL MONITOR                                  22

STATISTICAL INVENTORY RECONCILIATION TEST METHOD (QUALITATIVE)            23

STATISTICAL INVENTORY RECONCILIATION TEST METHOD (QUANTITATIVE)          24

VAPOR-PHASE OUT-OF-TANK PRODUCT DETECTOR                            25

VOLUMETRIC TANK TIGHTNESS TEST METHOD (OVERFILL)                       26

VOLUMETRIC TANK TIGHTNESS TEST METHOD (OVERFILL) (Edison Lab Protocol)        27

VOLUMETRIC TANK TIGHTNESS TEST METHOD (UNDERFILL)                      28

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                                     TABLE OF CONTENTS
 PART II-LEAK DETECTION EQUIPMENT SPECIFICATIONS                             29
 (Alphabetical by vendor, then by test method, next by equipment model,
 and finally by leak rate.)
 Absolute Precision Testing Systems                                                     30
 Advanced Tank Technology, Inc.                                                        31
 AgarCorp.                                                                          32
 Alert Technologies, Inc.                                                               33
 Andover Controls Corp.                                                               37
 Arizona Instrument Corp.                                                              40
 Armstrong Monitoring Corporation                                                       45
 Beaudreau Electronics, Inc.                                                            47
 Bell Avon, Inc.                                                                       49
 Brooks KWK, Inc.                                                                    50
 Caldwell Systems Corporation                                                          52
 Campo/Miller, Inc.                                                                    54
 Computerizing, Inc.                                                                   60
 Control Engineers                                                                    61
 EBW.Inc.                                                                           65
 EFA Technologies,  Inc.                                                                70
 Egemin Naamloze Vennootschap                                                       7 j
 Emoo Electronics, Tuthill Corp.                                                         73
 Engineered Systems, Inc.                                                             83
 Entropy Limited                                                                      34
 Environment and Safety                                                              86
 Environmental Fuel  Systems, Inc.                                                       87
 FCI Environmental,  Inc.                                                               88
 FDR Services, Inc.                                                                   92
 FE Petro, Inc.                                                                        93
 Fluid Containment, lnc.(formerly O/C Tanks Corp.)                                         96
Gasboy International (formerly William M. Wilson's Sons)                                   97

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                                    TABLE OF CONTENTS
Hasstech                                                                           114

Heath Consultants, Inc.                                         ,                     123

Horner Creative Products                                                             126

Ibex Industries                                                                       136

IMO Industries Inc., Gems Sensors Division                                              137

INCON Intelligent Controls, Inc.                                                        138

Keekor Environmental Products                                                        152

Leak Detection Systems, Inc                                                           153

Mallory Controls                                                                     154

Marley Pump Co.                                                                    157

Mine Safety Appliances                                                               170

NDE Environmental Corp.                                                             172

Omntec/Electro Levels Mfg., Inc.                                                       179

One Plus Corp.                                                                      182

Patriot Sensors and Controls Corp. (formerly MagneTek)                                   183

PermAlert                                                                          187

Petro Vend, Inc.                                                                     194

Pneumercator Company, Inc.                                                          204

ProTank, Inc.                                                                        206

Raychem Corp.                                                                      213

Ronan Engineering Co.                                                               214

Schuster Instruments                                                                 218

Simmons Sirvey Corp.                                                               219

S.I.R. International, Inc.                                                               221

SIR Monitor (formerly  Environmental Management Technologies)                           222

Sir Phoenix, Inc.                                                                     223

Soiltest, Inc.                                                                        224

Syscorp, Inc.                                                                        225
                                              in

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                                     TABLE OF CONTENTS
Tank Automation, Inc.                                                                226
Tanknology Corp. International                                                         227
Tidel Engineering, Inc.                                                                229
TokheimCorp.                                                                      248
Tracer Research Corp.                                                               249
Triangle Environmental, Inc.                                                           252
Universal Sensors and Devices, Inc.                                                    256
USTest                                                                            261
USTMAN Industries, Inc.                                                              266
Vaporless Manufacturing                                                              269
Veeder-Root                                                                        273
Vista Research, Inc.                                                                  299
Warren Rogers Associates, Inc.                                                        305
Warrick Controls, Inc.                                                                 306
Watson Systems, Inc. (formerly EnviroQuest Technologies Limited)                          308
Western Environmental Resources                                                      311
Xerxes Corp.                                                                        314
                                             IV

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                               TABLE OF CONTENTS

PART III - LEAK DETECTION EQUIPMENT THIRD PARTY EVALUATION UNDER REVIEW    316
(Alphabetical by vendor, then by test method, next by equipment model.)

PART IV - ACCEPTABLE TEST PROTOCOLS                                     317
(Alphabetical by test method, then by protocol date.)

PART V - LEAK DETECTION EQUIPMENT MAINTENANCE CHECKLIST                 321


APPENDIX A - GLOSSARY OF TERMS                                          327


APPENDIX B - LETTER TO VENDORS, WORK GROUP MEMBERS,                     331
WORK GROUP TEAMS, LEAK DETECTION EQUIPMENT REVIEW,
        AND DOCUMENT LIST

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               VI

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                     PARTI

       LEAK DETECTION TEST METHODS
                 AND EQUIPMENT
            ALPHABETICAL BY TEST METHOD,
                    THEN BY VENDOR,
               NEXT BY EQUIPMENT MODEL,
          FINALLY BY LEAK RATE OR OPERATING
                       PRINCIPLE
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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 AUTOMATIC ELECTRONIC LINE LEAK DETECTOR
         VENDOR

 Campo/Miller, Inc.

 Campo/Miller, Inc.

 Campo/Miller, Inc.

 Campo/Miller, Inc.


 Campo/Miller, Inc.


 Campo/Miller, Inc.


 Control Engineers


 Control Engineers
 Emco Electronics, Tuthill
 Corp.

 Emco Electronics, Tuthill
 Corp.

 Emco Electronics, Tuthill
 Corp.

 Emco Electronics, Tuthill
 Corp.

 Emco Electronics, Tuthill
 Corp.

 Gllbarco Environmental
 Products

 Gilbarco Environmental
 Products

 Gilbarco Environmental
 Products

 Gilbarco Environmental
 Products
Gilbarco Environmental
Products
Gilbarco Environmental
Products
Hasstech

Hasstech
                     EQUIPMENT NAME

 LS300 and LS300 N/C

 LS300-120 and LS300-120 XLC

 LS300-120 PLUS and LS300-120 PLUS A/S

 LS300-120 PLUS, AL; LS300-120 PLUS, AL, A/S and LS300-120
 PLUS AL, LSI

 LS300-120 PLUS, AL; LS300-120 PLUS, AL, A/S and LS300-120
 PLUS AL.LSI

 LS300-120 PLUS, AL; LS300-120 PLUS, AL, A/S and LS300-120
 PLUS AL.LSI

 Line Leak Detector
 Model LLP2

 Line Leak Detector
 Model LLP2

 EECO System LLD (Q0011)


 EECO System LLD (Q0011)


 EECO System LLD (Q0011)
EECO System LLD
 (for Flexible Pipelines)

EECO System LLD
 (for Rexible Pipelines)

Environmental Management Console (EMC)
with Line Leak Detector, Series PA02630000501

Environmental Management Console (EMC)
with Line Leak Detector, Series PA02630000501

Environmental Management Console (EMC)
with Line Leak Detector, Series PA02630000501

Environmental Management Console (EMC)
with Line Leak Detector, Series PA02630000501
(for Rexible Pipelines)

Environmental Management Console (EMC)
with Line Leak Detector, Series PA02630000501
(for Flexible Pipelines)

Environmental Management Console (EMC)
with Line Leak Detector, Series PA02630000501
(for Rexible Pipelines)

LineTite Pipeline Leak Monitor

LineTite Pipeline Leak Monitor
      Revision Date: April 18,1997



     LEAK RATE/THRESHOLD/
          MAX VOLUME

 3 gph/2.36 gph/35.36 gallons

 3 gph/2.36 gph/35.36 gallons

 3 gph/2.36 gph/35.36 gallons

 3 gph/1.5 gph/163 gallons


 0.2 gph/0.1 gph/163 gallons


 0.1 gph/0.05 gph/163 gallons


 3.0 gph/1.88 gph/89 gallons


 0.1 gph/0.05 gph/89 gallons


 0.2 gph/0.1293 gph/67.4 gallons


 3.0 gph/2.0 gph/67.4 gallons


 0.1 gph/0.0793 gph/67.4 gallons


 3.0 gph/2.0 gph/49.6 gallons


 0.1 gph/0.0793 gph/49.6 gallons


 3.0 gph/1.5 gph/128 gallons


 0.2 gph/0.1 gph/128 gallons


 0.1 gph/0.079 gph/128 gallons


 3.0 gph/1.5 gph/158.4 gallons



 0.2 gph/0.1 gph/158.4 gallons



0.1 gph/0.079 gph/158.4 gallons



3.0 gph/2.0 gph/341 gallons

0.1 gph/0.062 gph/341 gallons
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
ths method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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AUTOMATIC ELECTRONIC LINE LEAK DETECTOR (CONTINUED)
        VENDOR
                     EQUIPMENT NAME
Hasstech


Hasstech
  LineTite Pipeline Leak Monitor
  (for Flexible Pipelines)

  LineTite Pipeline Leak Monitor
  (for Flexible Pipelines)
INCON Intelligent Controls,  TS-LLD Line Leak Detector
Inc.

INCON Intelligent Controls,  TS-LLD Line Leak Detector
Inc.

INCON Intelligent Controls,  TS-LLD Line Leak Detector
Inc.

INCON Intelligent Controls,  TS-LLD Line Leak Detector
Inc.                      (for Flexible Pipelines)

INCON Intelligent Controls,  TS-LLD Line Leak Detector
Inc.                      (for Flexible Pipelines)

INCON Intelligent Controls,  TS-LLD Line Leak Detector
Inc.                      (for Flexible Pipelines)

Marley Pump Co.
Marley Pump Co.


Marley Pump Co.


Ronan Engineering Co.



Ronan Engineering Co.



Tide! Engineering, Inc.


Tidel Engineering, Inc.


Veeder-Root

Veeder-Root

Veeder-Root

Veeder-Root

Veeder-Root

Veeder-Root

Veeder-Root

Veeder-Root
  Red Jacket PPM 4000, RLM 9000, RLM 10000, ST1401L, and
  ST1801L

  Red Jacket PPM 4000, RLM 9000, RLM 10000, ST 1401L, and
  ST1801L

  Red Jacket PPM 4000, RLM 9000, RLM 10000, ST 1401L, and
  ST1801L

  Ronan X-76 Automatic Line Leak Detector
  Version X-76 DM-4 Microprocessor and JT-H2 Line Pressure
  Sensor

  Ronan X-76 Automatic Line Leak Detector
  Version X-76 DM-4 Microprocessor and JT-H2 Line Pressure
  Sensor

>tlPSPC-301 -0730-001/L1P-301 -0729-001
  Line Integrity Probe and Submersible Pump Controller

  LIPSPC-301-0730-001/LIP-301 -0729-001
  Line Integrity Probe and Submersible Pump Controller

  Pressurized Line Leak Detector, Series 8494

  Pressurized Line Leak Detector, Series 8494

  Pressurized Line Leak Detector, Series 8494

  TLS Line Leak Detector, Series 8484

  TLS Line Leak Detector, Series 8484

  TLS-350 Line Leak Detector, Series 8475

  TLS-350 Line Leak Detector for Flexible Pipelines, Series 8475

  TLS-350 Line Leak Detector for Flexible Pipelines, Series 8475
                                                                                          Revision Date: April 18, 1997
    LEAK RATE/THRESHOLD/
         MAX VOLUME
3.0 gph/2.0 gph/49.6 gallons


0.1 gph/0.062 gph/49.6 gallons


3 gph/1.5 gph/163 gallons


0.2 gph/0.1 gph/163 gallons


0.1 gph/0.05 gph/163 gallons


3 gph/1.5 gph/49.6 gallons


0.2 gph/0.1 gph/49.6 gallons


0.1 gph/0.05 gph/49.6 gallons


3.0 gph/2.0 gph/55.1 gallons


0.2 gph/0.1 gph/55.1 gallons


0.1 gph/0.047 gph/55.1 gallons


3.0 gph/0.831 gph/45 gallons



0.1 gph/0.066 gph/45 gallons



3.0 gph/2.0 gph/129 gallons


0.1 gph/0.06 gph/129 gallons


3.0 gph/2.5 gph/100 gallons

0.2 gph/0.17 gph/100 gallons

0.1 gph/0.09 gph/100 gallons

3.0 gph/1.88 gph/89 gallons

0.1 gph/0.05 gph/89 gallons

0.1 gph/0.079 gph/128 gallons

3.0 gph/1.5 gph/158.4 gallons

0.2 gph/0.1 gph/158.4 gallons
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment.  Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                                                                Revision Date: April 18,1997
 AUTOMATIC ELECTRONIC LINE LEAK DETECTOR (CONTINUED)
                                                                               LEAK RATE/THRESHOLD/
       VENDOR                           EQUIPMENT NAME                            MAX VOLUME
 Ve0dar-Root             TLS-350 Line Leak Detector for Rexible Pipelines, Series 8475      0.1 gph/0.079 gph/158.4 gallons
 Veeder-Root             TLS-350 Line Leak Detector, Series 8475                      3.0 gph/1.5 gph/128 gallons
 Veeder-Root             TLS-350 Line Leak Detector, Series 8475                      0.2 gph/0.1 gph/128 gallons
                                                  4
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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AUTOMATIC MECHANICAL LINE LEAK DETECTOR
       VENDOR
FE Petro, Inc.
FE Petro, Inc.
FE Petro, Inc.

Marley Pump Co.
Marley Pump Co.
Marley Pump Co.

Marley Pump Co.
Marley Pump Co.
Marley Pump Co.

Tokheim Corp.
Vaporless Manufacturing
Vaporless Manufacturing
Vaporless Manufacturing
Vaporless Manufacturing
                    EQUIPMENT NAME
STP-MLD Pipeline Leak Detector
STP-MLD-D Pipeline Leak Detector
STP-MLD-E Line (Flexline) Leak Detector
(for Flexible Pipelines)
Red Jacket OLD and XLD
Red Jacket FX1/FX2
Red Jacket FX1/FX2 Rexline
(for Flexible Pipelines)
Red Jacket FX2/FX2-D and Bigflo
Red Jacket XLP
Red Jacket XLP
(for Flexible Pipelines)
Tokheim Pressure Monitor, Models PM 101 and 585A-PM
Vaporless LD 2000 and LD 2000S
Vaporless LD 2000E and LD 2000E-S
Vaporless LD 2000T and LD 2000T-S
Vaporless LD 3000 and LD 3000S
     Revision Date: April 18,1997

    LEAK RATE/THRESHOLD/
         MAX VOLUME
3.0 gph/2.0 gph/129.14 gallons
3.0 gph/2.0 gph/341 gallons
3.0 gph/2.0 gph/49.6 gallons

3.0 gph/2.0 gph/129 gallons
3.0 gph/2.0 gph/158 gallons
3.0 gph/2.0 gph/49 gallons

3.0 gph/2.0 gph/362 gallons
3.0 gph/2.0 gph/129 gallons
3.0 gph/2.0 gph/48.9 gallons

3.0 gph/2.25 gph/78 gallons
3.0 gph/1.7 gph/129 gallons
3.0 gph/2.0 gph/59.6 gallons
3.0 gph/2.5 gph/129 gallons
3.0 gph/2.0 gph/320 gallons
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

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 AUTOMATIC TANK GAUGING SYSTEM
                                                                                          Revision Date: April 18,1997
        VENDOR

 Alert Technologies, Inc.


 Andover Controls Corp.


 Andover Controls Corp.



 Andover Controls Corp.


 Arizona Instrument Corp.


 Arizona Instrument Corp.
CaJdwell Systems
Corporation

Caldwell Systems
Corporation

Control Engineers
Control Engineers
EBW, INC.
EBW, INC.
Egemin Naamloze
Vennootschap

Egemin Naamloze
Vennootschap

Emco Electronics, Tuthill
Corp.

Emco Electronics, Tuthill
Corp.

Emco Electronics, Tuthill
Corp.

Emco Electronics, Tuthill
Corp.

Engineered Systems, Inc.
Environment and Safety
                    EQUIPMENT NAME

Alert Model 2000 In-Tank Mass Measurement Probe System
(Mass Buoyancy Probe)

Andover Infinity CX9000, CX9200, and CMX240
(Magnetostrictive Probe)

Andover Infinity
CX9000, CX9200, and CMX240
(Magnetostrictive Probe)

Versions AC8+/AC256+
(Magnetostrictive Probe)

Encompass MTSIPAM #17-903
(Magnetostrictive Probe #17-9300)

Encompass USF IPAM #17-901
(Ultrasonic Probe #17-9100)

Tank Manager
(Ultrasonic Probe)

Tank Manager
(Ultrasonic Probe)

CEI 3000 Tank Level Module - Version TLP2
Normal/Rapid Test Mode
(Magnetostrictive Probe)

CEI 3000 Tank Level Module - Version TLP2
Normal/Rapid Test Mode
(Magnetostrictive Probe)

Auto-Stik II and Auto-StJk Jr.
(Magnetostrictive Probe)

Auto-Stik II and Auto-Stik Jr.
(Magnetostrictive Probe)

E'SPI III
(Mass Buoyancy Probe)

E'SPI IV
(Mass Buoyancy Probe)

EECO System TLM/0.2 gph Precision Test
(Magnetostrictive Probe)

EECO System TLM/0.1 gph Precision Test
(Magnetostrictive Probe)

EECO System TLM/0.2 gph Quick Test
(Magnetostrictive Probe)

EECO System TLM/0.1 gph Quick Test
(Magnetostrictive Probe)

Image II
(Magnetostrictive Probe)

EASI Level-Tru
(Magnetostrictive Probe)
     LEAK RATE/THRESHOLD/
          MAX VOLUME

0.2gph/0.1 gph/15,000 gallons
0.1 gph/0.05 gph/15,000 gallons
0.2gph/0.1 gph/15,000 gallons
0.2gph/0.1 gph/15,000 gallons
0.2gph/0.1 gph/15,000 gallons
0.2 gph/0.1 gph/15,000 gallons
0.2 gph/0.1 gph/20,000 gallons
0.1 gph/0.05 gph/20,000 gallons
0.2 gph/0.1 gph/15,000 gallons
0.1 gph/0.05 gph/15,000 gallons
0.2 gph/0.1 gph/15,000 gallons
0.1 gph/0.05 gph/15,000 gallons
0.2 gph/0.075 gph/15,000 gallons
0.2 gph/0.1 gph/15,000 gallons
0.2 gph/0.1 gph/15,000 gallons
0.1 gph/0.05 gph/15,000 gallons
0.2 gph/0.1 gph/15,000 gallons
0.1 gph/0.05 gph/15,000 gallons
0.2 gph/0.1 gph/15,000 gallons
0.2 gph/0.1 gph/15,000 gallons
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
tha method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
AUTOMATIC TANK GAUGING SYSTEM (CONTINUED)
       VENDOR

Gasboy International
(formerly William M.
Wilson's Sons)

Gilbarco Environmental
Products
Gilbarco Environmental
Products
Gilbarco Environmental
Products
Gilbarco Environmental
Products
Gilbarco Environmental
Products
Hasstech
Hasstech
                    EQUIPMENT NAME
Gasboy IMS 500
(Magnetostrictive Probe)
EMC Environmental Management Console, EMC Basic Monitoring
System
Tank Monitor 2, 3,2.1, and 3.1, PAO238000XXXX
(Capacitance Probe)

EMC Environmental Management Console, EMC Basic Monitoring
System Tank Monitor 2.1,3.1 ,PAO264XXXOOOO
(Capacitance Probe)

EMC Environmental Management Console, EMC Basic Monitoring
System Tank Monitor 2.1,3.1, PAO264XXXOOOO
(Capacitance Probe)

EMC Environmental Management Console, EMC Basic Monitoring
System Tank Monitor 2.1,3.1, PAO265XXXOOOO
(Magnetostrictive Probe)

EMC Environmental Management Console, EMC Basic Monitoring
System Tank Monitor 2.1,3.1, PAO265XXXOOOO
(Magnetostrictive Probe)

Tank Compliance Center, Model 700
(7100 Series Magnetostrictive Probe)

Tank Compliance Center, Model 700
(7100 Series Magnetostrictive Probe)
INCON Intelligent Controls,   TS 1000
Inc.                      (Magnetostrictive Probe)

INCON Intelligent Controls,   TS 2000
Inc.

Keekor Environmental
Products

Marley Pump Co.
Mariey Pump Co.
Marley Pump Co.
Omntec/Electro Levels
Mfg., Inc.

Omntec/Electro Levels
Mfg., Inc.
(Magnetostrictive Probe)

TankTite Leak Detection Kernel Version 1.0 with Keeprobe K7
(Magnetostrictive Probe)

Red Jacket ATM System,
Version RLM 5000,5001, and 9000
(Magnetostrictive Probe)

Sonic Technology (ST) 1400-1800 Series Tank Monitoring System
ATG Automatic Tank Gauging Monitor, LLM Series Liquid Level
Monitor, FMS Fuel Management Monitor
(Ultrasonic Probe)

Sonic Technology (ST) 1400-1800 Series Tank Monitoring System
ATG Automatic Tank Gauging Monitor, LLM Series Liquid Level
Monitor, FMS Fuel Management Monitor
(Ultrasonic Probe)

OEL8000
(Magnetostrictive Probe)

OEL 8000
(Magnetostrictive Probe)
     Revision Date: April 18,1997


    LEAK RATE/THRESHOLD/
         MAX VOLUME

0.2gph/0.1 gph/15,000 gallons
0.2gph/0.1 gph/15,000 gallons
0.2 gph/0.126 gph/15,000 gallons
0.1 gph/0.071 gph/15,000 gallons
0.2 gph/0.093 gph/15,000 gallons
0.1 gph/0.071 gph/15,000 gallons
0.2 gph/0.1 gph/15,000 gallons
0.1 gph/0.05 gph/15,000 gallons
                                                          0.2 gph/0.1 gph/15,000 gallons
                                                          0.2 gph/0.058 gph/15,000 gallons
0.2 gph/0.1 gph/15,000 gallons
0.2 gph/0.1 gph/15,000 gallons
0.2 gph/0.1 gph/18,000 gallons
0.1 gph/0.05 gph/18,000 gallons
0.2 gph/0.1 gph/15,000 gallons
0.1 gph/0.05 gph/15,000 gallons
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
AUTOMATIC TANK GAUGING SYSTEM (CONTINUED)
        VENDOR

Patriot Sensors and
Controls Corp.
(formerly MagneTek)

Patriot Sensors and
Controls Corp. (formerly
MagneTek)

Patriot Sensors and
Controls Corp. (formerly
MagneTek)

Patriot Sensors and
Controls Corp. (formerly
MagneTek)

Petro Vend, Inc.
Petro Vend, Inc.


Petro Vend, Inc.


Petro Vend, Inc.


Ronan Engineering Co.


Ronan Engineering Co.


Tidol Engineering, Inc.


Tide! Engineering, Inc.



TWel Engineering, Inc.



Tide! Engineering, Inc.


TWel Engineering, Inc.


Tklel Engineering, Inc.


TkteJ Engineering, Inc.


Universal Sensors and
Devices, Inc.       '
                    EQUIPMENT NAME

7021 Digital Tank Gauge
(7030 Series Magnetostrictive Probe)
7021 Digital Tank Gauge
(7030 Series Magnetostrictive Probe)
7021 Digital Tank Gauge
(7100 Series Magnetostrictive Probe)
7021 Digital Tank Gauge
(7100 Series Magnetostrictive Probe)
Petrosonic III, Version 4.05
(Model 613,4 inch, Magnetostrictive Probe)

Site Sentinel Model II and III,
(Model 613,2 inch, Magnetostrictive Probe)

Site Sentinel Model II and III,
(Model 613,4 inch, Magnetostrictive Probe)

Site Sentinel Model II and III,
(Model 613,4 inch, Magnetostrictive Probe)

X-76 ETM and X-76 ETM-4X
(Magnetostrictive Probe)

X-76 ETM and X-76 ETM-4X
(Magnetostrictive Probe)

Tidel Environmental Monitoring System, 3500 Series
(Ultrasonic Probes #401-0009, #401-0010 and #401-0023)

Tidel Environmental Monitoring System, EMS 2000,3000, and
3500 Series
(Ultrasonic Probes #401-0009 and #401-0010)

Tidel Environmental Monitoring System, EMS 2000,3000, and
3500 Series
(Ultrasonic Probes #401-0021 and #401-0022)

Tidel Environmental Monitoring System, EMS 4000
(Ultrasonic Probe #312-9000)

Tidel Environmental Monitoring System, EMS 4000
(Ultrasonic Probe #312-9000)

Tidel Environmental Monitoring System, EMS 4000
(Ultrasonic Probe #312-9001)

Tidel Environmental Monitoring System, EMS 4000
(Ultrasonic Probe #312-9001)

TICS-1000
(Magnetostrictive Probe)
                                                                                          Revision Date: April 18,1997
    LEAK RATE/THRESHOLD/
          MAX VOLUME

0.2gph/0.1 gph/15,000 gallons
0.1 gph/0.05 gph/15,000 gallons
0.2gph/0.1 gph/15,000 gallons .
0.1 gph/0.05 gph/15,000 gallons
0.2gph/0.1 gph/15,000 gallons
0.2gph/0.1 gph/15,000 gallons
0.2gph/0.1 gph/15,000 gallons
0.1 gph/0.06 gph/15,000 gallons
0.2gph/0.1 gph/15,000 gallons
0.1 gph/0.05 gph/15,000 gallons
0.2gph/0.1 gph/15,000 gallons
0.2gph/0.1 gph/15,000 gallons
0.2gph/0.1 gph/15,000 gallons
0.2gph/0.1 gph/15,000 gallons
0.1 gph/0.05 gph/15,000 gallons
0.2gph/0.1 gph/15,000 gallons
0.1 gph/0.05 gph/15,000 gallons
0.2gph/0.1 gph/15,000 gallons
                                                        '8
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
 AUTOMATIC TANK GAUGING SYSTEM (CONTINUED)
        VENDOR
 USTest


 USTest


 Veeder-Root


 Veeder-Root


 Veeder-Root


 Veeder-Root


 Veeder-Root
                   EQUIPMENT NAME

UST 2001
(Ultrasonic Probe)

UST 2001 (Quick Test)
(Ultrasonic Probe)

TLS-200/200i/300/400 UST ATGS
(7842 Digital Sensing Capacitance Probe)

TLS-200/200J/300/400 UST ATGS
(8472 Digital Sensing Capacitance Probe)

TLS-200/200J/300/400 UST ATGS
(8472 Digital Sensing Capacitance Probe)

TLS-200/200i/250/250i/300/350/400 UST ATGS
(8473 Digital Sensing Magnetostrictive Probe)

TLS-200/200i/250/250i/300/35Q/400 UST ATGS
(8473 Digital Sensing Magnetostrictive Probe)
     Revision Date: April 18, 1997
     •»
    LEAK RATE/THRESHOLD/
         MAX VOLUME

0.1 gph/0.05 gph/15,000 gallons
0.2gph/0.1 gph/15,0,00 gallons
0.2gph/0.1 gph/15,000 gallons
0.2 gph/0.126 gph/15,000 gallons
0.1 gph/0.071 gph/15,000 gallons
0.2 gph/0.093 gph/15,000 gallons
                                                                                 0.1 gph/0.071 gph/15,000 gallons
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                              Revision Date: April 18,1997
CONTINUOUS IN-TANK LEAK DETECTION SYSTEM


                                                                              LEAK RATE/THRESHOLD/
       VENDOR                          EQUIPMENT NAME                           MAX VOLUME

Veeder-Root             TLS Series 300/400 Monitoring Systems                      0.2 gph/0.16 gph/38,170 gallons
                      with CSLD versions 8473 and 8493
                      (Magnetostrictive Probes)                                                    .
                                                 10
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                                   Revision Date: April 18,1997
DOUBLE WALLED TANK TIGHTNESS TEST


                                                                                  LEAK RATE/THRESHOLD/
       VENDOR                            EQUIPMENT NAME                             MAX VOLUME

Fluid Containment, Inc.     Hydrostatic Precision Tank Test for DWT-Type II Tanks            0.1 gph/0.05 gph/30,000 gallons
(formerly O/C Tanks Corp.)

Xerxes Corp.             Xerxes Trucheck Hydrostatic Monitoring System                  0.1 gph/0.05 gph/30,000 gallons
                                                    11
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
LARGE DIAMETER PIPELINE LEAK DETECTOR
       VENDOR
EFA Technologies, Inc.
Vista Research, Inc.
Vista Research, Inc.
Vista Research, Inc.
Vista Research, Inc.
Vista Research, Inc.
Vista Research, Inc.
                   EQUIPMENT NAME
LeakNet
Model LT-100 Version 1.0 Manual Method
Model LT-100 Version 1.0 Manual Method
Model LT-100 Version 1.0 Primary Method
Model LT-100 Version 1.0 Primary Method
Model LT-100 Version 1.0 Segmented Method
Model LT-100 Version 1.0 Segmented Method
     Revision Date: April 18,1997

    LEAK RATE/THRESHOLD/
         MAX VOLUME
3.0 gph/2.2 gph/116,230 gallons
0.2 gph/0.177 gph/3,400 gallons
0.1 gph/0.077 gph/3,400 gallons
0.2 gph/0.148 gph/3,400 gallons
0.1 gph/0.060 gph/3,400 gallons
0.2 gph/0.174 gph/3,400 gallons
0.1 gph/0.074 gph/3,400 gallons
                                                       12
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                                    Revision Date: April 18,1997
 LARGE TANK AUTOMATIC TANK GAUGING SYSTEM


                                                                                   LEAK RATE/THRESHOLD/
        VENDOR                            EQUIPMENT NAME                             MAX VOLUME

 Universal Sensors and     LTC-1000                                               1.4 gph/0.7 gph/2,000,000 gallons
 Devices, Inc.             (Mass Buoyancy Probe)


 Universal Sensors and     LTC-2000                                               3.0 gph/1.5 gph/2,000,000 gallons
 Devices, Inc.             (Differential Pressure Probe)
                                                    13
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
LINE TIGHTNESS TEST METHOD
       VENDOR
Hasstech
Heath Consultants, Inc.
Homer Creative Products
Homer Creative Products
NOE Environmental Corp.
NDE Environmental Corp.
ProTank, Inc.
ProTank. Inc.
Tanknology Corp.
International
Tracer Research Corp.
                    EQUIPMENT NAME
AcuRite
Petro Tite Line Tester
EZY-Chek II Automatic Line Leak Detector
EZY-Chek Manual Line Leak Detector
Praline Test Series III, Version 1.0
PTK-88
LTH-5000 Line Tester
LTP-5000 Line Tester
TLD-1

Tracer Tight Line Test
Triangle Environmental,     TEI Model LT-3, Version 1.0
Inc.
Western Environmental     Model PLT-100R
Resources
     Revision Date: April 18,1997

    LEAK RATE/THRESHOLD/
         MAX VOLUME
0.1 gph/0.01 gph/75 gallons
0.1 gph/0.01 gph/129 gallons
0.1 gph/0.05 gph/129 gallons
0.1 gph/0.05 gph/129 gallons
0.1 gph/0.05 gph/41 gallons
0.1 gph/0.05 gph/40 gallons
0.1 gph/0.05 gph/40 gallons
0.1 gph/0.05 gph/41 gallons
0.1 gph/0.05 gph/50 gallons
0.1 gph/A leak is declared when
tracer chemical is detected outside of
the pipeline.
0.1 gph/0.05 gph/80 gallons
                                                           0.1 gph/0.05 gph/80 gallons
                                                        14
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
 LIQUID-PHASE INTERSTITIAL DETECTOR
        VENDOR
                                              EQUIPMENT NAME
 Arizona Instrument Corp.    Soil Sentry Liquid 330(17-330-A/17-330-B), TLM-830,
 Beaudreau Electronics,
 Inc.

 Beaudreau Electronics,
 Inc.

 EBW, Inc.


 EBW, Inc.
 Emco Electronics, Tuthill
 Corp.

 Gilbarco Environmental
 Products

 Gilbarco Environmental
 Products

 Gilbarco Environmental
 Products
                          ENCOMPASS APAM
                          Probes 17-141A, 17-142A, 17-143A, 17-144A

                          Model 404 Pump Cut-Off


                          Model 406 Pump Cut-Off


                          AUTO-STIK Discriminating Sensors
                          LS-5, LS-35

                          Liquid Sensor System
                          LS-3A, LS-30A, LS-7

                          EECO system, Leak Sensor II, Leak Sensor Jr. Thermistor and
                          Proximity probes

                          PA02590XXXOOO


                          PA02591144000


                          PA02592000000
 INCON Intelligent Controls,   Tank Sentinel TS-1OOOEFITSP-DIS BriteSensor
 Inc.

 INCON Intelligent Controls,   Tank Sentinel TS-1 OOOEFI TSP-HIS Brite Sensor
 Inc.

 INCON Intelligent Controls,   Tank Sentinel TS-1 OOO/TS-2000
 Inc.                       TSP-EIS Standard Sensor, TSP-PS Liquid Contact Sensor

 INCON Intelligent Controls,   Tank Sentinel TS-1 OOO/TS-2000
                          TSP-HLS Standard Sensor, TSP-ULS Standard Sensor
Inc.

Marley Pump Co.

Omntec/Electrb Levels
Mfg., Inc.


PermAlert


PermAlert


PermAlert


Petro Vend, Inc.


Petro Vend, Inc.


Petro Vend, Inc.
                          Red Jacket PPM 4000 with Optical Liquid Discrimination Sensor

                          L-LL-R-1, LS-ASC, PDS-ASC, PDWS-1, PDWF-1
                          PAL-AT Models AT20C, AT50C, AT40K
                          PHL Hydrocarbon Sensor

                          TankWatch Models PHM10, PHMS
                          Combination Hydrocarbon/Water Probe

                          TankWatch Models PHM10, PHMS
                          Hydrocarbon Probe

                          Petrosentry IV, Petrosentry VIII, SiteSentinel
                          Liquid Sensor

                          Petrosentry IV, Petrosentry VIII, SiteSentinel
                          Universal Reservoir Sensor

                          Petrosentry IV, Petrosentry VIII, SiteSentinel
                          Universal Sump Sensor
                                                        15
       Revision Date: April 18,1997




      OPERATING PRINCIPLE

 refraction



 float switch


 refractive index of liquids


 float switch and product permeability


 float switch


 thermal conductivity, proximity switch


 float switch


 float switch


 float switch


 opto-electric


 magnetic switch


 opto-electric


 magnetic switch


 optical sensor

 all: refractive index of liquids; PDS-
 ASC, PDWS-1, and PDWF-1:
 electrical conductivity

 electrical conductivity


 electrical conductivity


 electrical conductivity


thermal conductivity


float switch


float switch
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
LIQUID-PHASE INTERSTITIAL DETECTOR (Continued)
       VENDOR

Pneumercator Company,
Inc.

Pneumercator Company,
Inc.

Tidel Engineering, Inc.
TJdel Engineering, Inc.


Tidel Engineering, Inc.
Universal Sensors and
Devices, Inc.
Veeder-Root


Veeder-Root


Veedar-Root


Veeder-Root

Veeder-Root



Veeder-Root


Veeder-Root



Warrick Controls, Inc.
                    EQUIPMENT NAME

LC1000, E-14-29, E-700-1, LDE-700, LDE-740, TMS 3000
LS600AB, LS600LDBN, LS610, RSU800

IDE 700, LDE 740, LDE 9000
Sensor Probe Models 9-901,9-902,9-903

EMS-3500
with Liquid Discriminatory Probes Part 301-0635

EMS-3500
with Containment Sump Probes Part 301-0642

EMS-3500
Tidel Detector No. 301-0752-001

Leak Alert System Models LAL-100, LA-01, LA-02, LA-04, LA-X4,
LA-08, CATLAS
Liquid Sensor LALS-1

TLS-250, TLS 250i Plus, ILS 250, ILS 350, TLS-350
Interstitial Liquid Sensor for Steel Tanks (0794390-420)

TLS-250J, TLS 250i Plus, ILS 250, ILS 350, TLS-350
Interstitial Liquid Sensor for Rberglass Tanks (0794390-401)

TLS-2501, TLS 250i Plus, ILS 250, ILS 350, TLS-350
Liquid Sensor for Sumps (0794390-206)

TLS-350 Discriminating Insterstitial Liquid Sensor

TLS-350
Dispenser Pan Sensor(794380-320) and Containment Sump
Sensor(794380-350)

TLS-350
Dual and Single Stage Hydrostatic Sensors

TLS-350
Solid-State Pan/Sump Sensor (794380-321, -351), Piping Sump
Sensor (794380-208), Micro Sensor (794380-340)

Model DFP-2&"Sensor
     Revision Date: April 18,1997




     OPERATING PRINCIPLE

float switch


capacitance
electrical conductivity/hydrocarbon
sensitive polymer

magnetic switch/float and
hydrocarbon sensitive polymer

float switch
thermal conductivity



float switch


float switch


float switch


capacitance change/ultrasonic

electrical conductivity/ultrasonic



float switch
product permeable/ultrasonic/float
switch
product solubility
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
  LIQUID-PHASE OUT-OF-TANK PRODUCT DETECTOR
         VENDOR
 Advanced Tank
 Technology, Inc.
 Agar Corp.
 Armstrong Monitoring
 Corporation
 Armstrong Monitoring
 Corporation
 Brooks KWK, Inc.
 Brooks KWK, Inc.

 EBW, Inc.

 FCI Environmental, Inc.
 FCI Environmental, Inc.
 Gilbarco Environmental
 Products
                                              EQUIPMENT NAME
                           Leak Tracer Dye (LTD)

                           LEAKWISE Groundwater Monitor
                           ID-220 Series Hydrocarbon on Water Detector System
                           ALERTMASTER5100
                           Leak Detection Cable AMC-5007
                           ALERTMASTER 5100
                           Vapor Sensor AMC F4000
                           Leak Detection Systems,
                           KW-140 / KW-240 Monitors with Type 1 Sensor
                           Leak Detection Systems,
                           KW-140 / KW-240 Monitors with Type 2 Sensor
                          AUTO-STIK Discriminating Sensors
                          LS-10,LS-15,LS-20
                          Analog Hydrocarbon Probe AHP-100
                          Digital Hydrocarbon Probe DHP-100
                          Environmental Management Console (EMC)
                          Groundwater Sensor, series PA02700XX0001
 IMO Industries Inc., Gems   Gems Smartwell Portable Monitor model WPM-535
 Sensors Division           with Groundwater Probe model WP-535
 INCON Intelligent Controls,   Tank Sentinel TS-1OOOEFI
 lnc-                      TSP-DDS BriteSensor, TSP-DTS BriteSensor
 INCON Intelligent Controls,   Tank Sentinel TS-1 OOOEFI
 Inc.
 Mallory Controls
 Mallory Controls
 One Plus Corp.
 PermAlert
 PermAlert

 PermAlert •
 PermAlert
 Petro Vend, Inc.
 Raychem Corp.

Tidel Engineering, Inc.
                          TSP-MWS BriteSensor Groundwater Probe
                          Pollulert Probes MD221G/T, MD221G/TRA
                          Pollulert Probes MD241R, MD241RRA, MD241G, MD241GRA
                          Leak Edge
                          Models 100-3001,100-4001
                          PAL-AT Models AT20C, AT50C, AT40K
                          AGW Sensor Cable
                          PAL-AT Models AT20C, AT50C, AT40K
                          TFH Hydrocarbon Sensor Cable
                          PAL-AT Models AT20C, AT50C, AT40K
                          with PHFW Hydrocarbon Probe and Type 1 Sensor
                          PAL-AT Models AT20C, AT50C, AT40K
                          w|th PHFW Hydrocarbon Probe and Type 2 Sensor
                          SiteSentinel
                          30-3206, -3207, -3210 Sensors
                         TraceTek Alarm and Locator Modules
                         TT502 Fuel Sensing Cable
       Revision Date: April 18,1997


      OPERATING PRINCIPLE
 product solubility - color development
 radio frequency (RF) attenuation
 electrical conductivity
 metal oxide semiconductor

 product soluble

 product soluble

 float switch and product permeability
 fiber optic chemical sensor
 fiber optic chemical sensor
 electrical conductivity
 conductive polymer
                                                                                    magnetic switch, float, and
                                                                                    hydrocarbon sensitive polymer
                                                                                    hydrocarbon sensitive polymer
 electrical conductivity
 electrical conductivity
 product permeable
 impedance change
 impedance change

 product soluble
 product soluble
product permeable
electrical conductivity
                                                                                   conductivity via resistor ladder
                                                                                   network
                         EMS-3500
                         with Monitoring Well Probes Part 301-0641
                                                       17
^Pmat^e °" *^ USt 1"? l° be cons*ru^d as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                                   Revision Date: April 18,1997

LIQUID-PHASE OUT-OF-TANK PRODUCT DETECTOR (CONTINUED)



       VENDOR                            EQUIPMENT NAME                         OPERATING PRINCIPLE

Tidel Engineering, Inc.       EMS-3500                                              electrical conductivity/hydrocarbon
                        with Sheen Probes Part 301 -0687                            sensitive polymer

Tidel Engineering, Inc.       EMS-3500                                              electrical conductivity/hydrocarbon
                        Tidel Detector No. 301 -0762                                 sensitive polymer

Tktel Engineering, Inc.       Tidel Detector No. 301 -0324-001 and 301 -0325-001               electrical conductivity

Tide! Engineering, Inc.       Tidel Detector No. 301 -0326-001 and 301 -0326-002               electrical conductivity

Veeder-Root              350 Series UST Monitoring Systems: Models ILS-350, TLS-350,     electrical conductivity
                        TLS-350R
                        Groundwater Sensor (794380-621, -622, -624)
                                                     18
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
 NON-VOLUMETRIC TANK TIGHTNESS TEST METHOD (TRACER)
                                                                                    Revision Date: April 18,1997
        VENDOR

 Tracer Research Corp.      Tracer Tight
EQUIPMENT NAME
                                        LEAK RATE/THRESHOLD

                                    0.1 gpn/A leak is declared when
                                    tracer chemical is detected outside of
                                    the tank.
                                                    19
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
NON-VOLUMETRIC TANK TIGHTNESS TEST METHOD (ULLAGE)

       VENDOR                            EQUIPMENT NAME
Alert Technologies, Inc.
Alert Ullage System Model 1050
(Pressure and Vacuum Test)
Alort Technologies, Inc.      Alert Ullage System Model 1050 X (Vacuum Test)
NDE Environmental Corp.    U3 Ullage Test
                          (Vacuum or Pressure Test)
NDE Environmental Corp.    UST Ullage Test - Version U2 (Pressure Test)
NDE Environmental Corp.    UTS-4T Ullage Test (Pressure Test)
ProTank, Inc.
 ProTank, Inc.
 ProTank, Inc.
UTA-5000 Ullage Tester
(Vacuum or Pressure Test)
 UTF-5000 Ullage Tester
 (Pressure Test)
 UTFP-5000 Ullage Tester
 (Pressure Test)
Triangle Environmental,      TEI Ullage Test, Version 1.0 (Vacuum Test)
Inc.
 USTest
 UST 2000/U
 (Pressure and Vacuum Test)
                                                                                          Revision Date: April 18,1997
                                                              LEAK RATEttHRESHOLD/
                                                                   MAX VOLUME
0.1 gph/ A leak is declared when the
ratio of the ultrasonic signal (when the
tank is under pressure or vacuum) to
the background signal (prior to
pressurization or evacuation) equals or
exceeds 1.5 for either 12 kHz or 25 kHz
frequency band./6,000 gallons

0.1 gph/ A leak is declared when the
ratio of the ultrasonic signal (when the
tank is under vacuum) to the
background signal (prior to vacuation)
equals or exceeds 1.5 for either 12 kHz
or 25 kHz frequency band. /24.000  '
gallons

0.1 gph/A leak is declared when the
acoustic signal detected is different
from the baseline. (Baseline is the
acoustic signal before tank is
pressurized or evacuated.)/16,500
gallons

0.1 gph/A leak is declared when the
pressure decay trend equals or
exceeds ± 0.016 psi/hr./10,260 gallons

0.1 gph/A leak is declared when the
make-up gas flow rate into ullage
equals or exceeds 0.275 cubic
feet/hour/7,500 gallons

0.1 gph/A leak is declared when the
acoustic signal detected is different
from the baseline. (Baseline is the
acoustic signal before tank is
pressurized or evacuated.)/16,500
gallons.

0.1  gph/A leak is declared when the
make-up gas flowrate into ullage
equals or exceeds 0.275 cubic feet per
hour./7,500 gallons

0.1  gph/A leak is declared when the
pressure decay trend equals or
exceeds  ± 0.016 psi/hr./10,260 gallons.

0.1  gph/A leak is declared when an
increase in the acoustic noise level
(above background) of the tank under
vacuum is detected due to air or water
ingress./15,000 gallons

0.1 gph/A leak is declared when there
is a substantial increase in the acoustic
noise signal (when the tank is under
vacuum or pressure) above the
background signal (prior to
pressurization or evacuation) in the
frequency interval of 10 kHz to 20
kHz/7,550 gallons (pressure), 5,250
gallons (vacuum).
                                                         20
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment  Equipment should be installed and operated in accordance with all applicable laws and regulations.

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 NON-VOLUMETRIC TANK TIGHTNESS TEST METHOD (VACUUM)
                                                                                       Revision Date: April 1B, 1997
        VENDOR

Homer Creative Products
                    EQUIPMENT NAME
EZY3
Tanknology Corp.
International
VacuTect
Triangle Environmental,
inc.
TEI System 5000, Version 1.0
    LEAK RATE/THRESHOLD/
         MAX VOLUME

0.1 gph/ A leak is declared when the
vacuum decay is more than 1 inch
water column pressure
for non-volatile products and 10% of
the lower determined vapor pressure
for volatile products.
A leak is also declared if any water
ingress is detected. 750,000 gallons

0.1 gph/ A leak is declared when:
sonic emission of air ingress is
detected in ullage area and/or; sonic
emission of bubbles formed by air
ingress is detected in product-filled.
portion of the tank and/or; water
ingress is detected at the bottom of
the tank.775,000 gallons

0.1 gph/ A leak is declared when the
acoustic noise level of the tank under
vacuum is greater than the calibrated
background acoustic noise level
(prior to evacuation)./20,000 gallons
                                                      21
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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PRESSURE/VACUUM INTERSTITIAL MONITOR
       VENDOR

Bell Avon, Inc.
                  EQUIPMENT NAME

VIGILANT Leak Detection System
                                                                                 Revision Date: April 18,1997
    LEAK RATE/THRESHOLD/
        MAX VOLUME

0.1 gph/ A leak is declared when
changes in interstitial vacuum
exceed a predetermined change in
slope versus time curve./15,000
gallons
                                                  22
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the melhod or equipment Equipment should'be installed and operated in accordance with all applicable laws and regulations.

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                                                                                 Revision Date: April 18,1997
 STATISTICAL INVENTORY RECONCILIATION TEST METHOD (QUALITATIVE)


                                                                                LEAK RATE/THRESHOLD/
       VENDOR                          EQUIPMENT NAME                            MAX VOLUME

 Entropy Limited           Precision Tank Inventory Control System, Version 90             0.1 gph/0.04 gph/15,000 gallons

 Homer Creative Products   SIR PR01 Version 1.0                                   0.2 gph/0.1 gph/18,000 gallons

 Homer Creative Products   SIR PR01 Version 2.0                                   0.1 gph/0.05 gph/18,000 gallons

 Syscorp, Inc.             Store Vision Version E.2                                  0.2 gph/0.0834 gph/12,000 gallons

 USTMAN Industries, Inc.    YES SIR 90                                            0.2 gph/0.1 gph/15,000 gallons
                                                  23
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                                                                       Revision Date: April 18,1997
STATISTICAL INVENTORY RECONCILIATION TEST METHOD (QUANTITATIVE)
       VENDOR
Computerizing, Inc.
Entropy Limited
Homer Creative Products
Homer Creative Products
S.I.R. International, Inc.
Simmons Sirvey Corp.
Simmons Sirvey Corp.
SIR Monitor (formerly
Environmental
Management
Technologies)
Sir Phoenix, Inc.
USTMAN Industries, Inc.
USTMAN Industries, Inc.
Warren Rogers
Associates, Inc.
Watson Systems, Inc.
(formerly EnviroQuest
Technologies Limited)
Watson Systems, Inc.
(formerly EnviroQuest
Technologies Limited)
Watson Systems, Inc.
(formerly EnviroQuest
Technologies Limited)
                   EQUIPMENT NAME
ComputankV. 3.0
Precision Tank Inventory Control System Rev. 90
SIR PRO 1 Version 3.0
SIR PRO 1 Version 4.0
Mitchell's SIR Program v.2.612-13-91
SIR 5.7
SIR 5.7 LM
SIR Monitor


SIR PHOENIX
USTMAN SIR 1.91
USTMAN SIR Version 94.1
WRA Statistical Inventory Analysis, Version 5.1
Enviro Tile SIR
(also known as SIRAS 99.6)
SIRAS Software System, Version 2.0
SIRAS Software System, Version 2.8.3
    LEAK RATE/THRESHOLD/
         MAX VOLUME
0.1 gph/0.05 gph/18,000 gallons
0.1 gph/0.05 gph/21,000 gallons
0.2 gph/0.1 gph/33,000 gallons
0.1 gph/0.05 gph/33,000 gallons
0.1 gph/0.05 gph/18,000 gallons
0.1 gph/0.05 gph/18,000 gallons
0.1 gph/0.05 gph/45,000 gallons
0.1 gph/0.05 gph/18,000 gallons
0.1 gph/0.05 gph/18,000 gallons
0.1 gph/0.1 gph/18,000 gallons
0.1 gph/0.05 gph/30,000 gallons
0.1 gph/0.05 gph/18,000 gallons

0.1 gph/0.05 gph/18,000 gallons

0.1 gph/0.05 gph/30,000 gallons

0.2 gph/0.1 gph/30,000 gallons
                                                       24
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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VAPOR-PHASE OUT-OF-TANK PRODUCT DETECTOR
                                                                                         Revision Date: April 18,1997
        VENDOR
Arizona Instrument Corp.
Arizona Instrument Corp.
Environmental Fuel
Systems, Inc.
FCl Environmental, Inc.
FCI Environmental, Inc.
FDR Services, Inc.
Gilbarco Environmental
Products
Mallory Controls
Mine Safety Appliances
Mine Safety Appliances
Petro Vend, Inc.
Petro Vend, Inc.
Tidel Engineering, Inc.

Tidel Engineering, Inc.
Tracer Research Corp.
Universal Sensors and
Devices, Inc.
Veeder-Root
Warrick Controls, Inc.
                    EQUIPMENT NAME
Soil Sentry Twelve-X
Soil Sentry Twelve-X
Fuel Finder Version IV

Analog Hydrocarbon Probe AHP-100
Digital Hydrocarbon Probe DHP-100
GasPak Vapor Monitoring System
PA02660000000

Pollulert Probes MD221V, MD221VRA, MD210V, MD210VRA
Tankgard VIII
P/N 488803 S/N 00389
Tankgard
P/N 481532 S/N 03095
PetrosentryTLDIIl
SiteSentinel
Smart Module and Vapor Sensor
EMS-3000
301-0328-001, 301-0330-001
EMS-3500
Vapor Sensor Probe Part No. 301-0634
Tracer Tight
Leak Alert System Models LAL-100, LA-01, LA-02, LA-04, LA-X4,
LA-08, CATLAS
LAVS-1 MOS Vapor Sensor
ILS 350, TLS-350
Adsistor Vapor Probes
Model 5700 Meter
PVP-2 Sensor
     OPERATING PRINCIPLE
metal oxide semiconductor
metal oxide semiconductor
adsorption sampling

fiber optic
fiber optic
product permeable detector
adsistor

adsistor
metal oxide semiconductor

metal oxide semiconductor
metal oxide semiconductor
metal oxide semiconductor
adsistor

adsistor
chromatographic (looks for chemical
tracer)
metal oxide semiconductor
adsistor
adsistor
                                                       25
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

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VOLUMETRIC TANK TIGHTNESS TEST METHOD (OVERFILL)
       VENDOR
Heath Consultants, Inc.
Heath Consultants, Inc.
Homer Creative Products
Homer Creative Products
Ibex Industries
Leak Detection Systems,
Inc.
Schuster Instruments
Softest, Inc.
Tank Automation, Inc.
Western Environmental
Resources
Western Environmental
Resources
                   EQUIPMENT NAME
Petro Comp
PetroTitell
Homer EZY-Chek I
HomerEZY-Chekll
Ibex Precision Test System
Tank Auditor, Version RTD V.2.16
Tel-A-Leak 1
Soiltest Ainlay Tank Tegrity Tester, S-3
Automated Precision Tank Testing System (APTT System)
R-2
AES System II
AES System II - (Large Tanks)
     Revision Date: April 18,1997

    LEAK RATE/THRESHOLD/
         MAX VOLUME
0.1 gph/0.05 gph/15,000 gallons
0.1 gph/0.05 gph/15,000 gallons
0.1 gph/0.05 gph/12,000 gallons
0.1 gph/0.05 gph/12,000 gallons
0.1 gph/0.05 gph/18,000 gallons
0.1 gph/0.05 gph/15,000 gallons.

0.1 gph/0.05 gph/15,000 gallons
0.1 gph/0.05 gph/15,000 gallons
0.1 gph/0.05 gph/15,000 gallons

0.1 gph/0.05 gph/15,000 gallons

0.1 gph/0.05 gph/75,000 gallons
                                                      26
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                                                           Revision Date: April 18, 1997

VOLUMETRIC TANK TIGHTNESS TEST METHOD (OVERFILL) (Edison Lab Protocol)



                                                                          LEAK RATE/THRESHOLD/
      VENDOR                         EQUIPMENT NAME                          MAX VOLUME


Hasstech               Leak Computer Tank Test System                         0.1 gph/0.05 gph/12,000 gallons
                                               27
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

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 VOLUMETRIC TANK TIGHTNESS TEST METHOD (UNDERFILL)
        VENDOR
 Alert Technologies, Inc.
 Hasstech
 Homer Creative Products
 NDE Environmental Corp.
 NDE Environmental Corp.
 ProTank, Inc.
 ProTank, Inc.
 Triangle Environmental,
 Inc.
 USTest
 USTest
                   EQUIPMENT NAME
Alert Model 1000
Leak Computer Tank Test System
Homer EZY-Chek II
Computerized VPLT Testing System
Sure Test - Assured Tight System, Series IV
VU-5000 Underfill Tester
VUP-5000 Underfill Tester
TEI System 4000, Version 1.0

UST2000/LL
UST2000/P
     Revision Date: April 18,1997

    LEAK RATE/THRESHOLD/
         MAX VOLUME
0.1 gph/0.05 gph/30,000 gallons
0.1 gph/0.05 gph/15,000 gallons
0.1 gph/0.05 gph/12,000 gallons
0.1 gph/0.05 gph/18,000 gallons
0.1 gph/0.05 gph/18,000 gallons
0.1 gph/0.05 gph/18,000 gallons
0.1 gph/0.05 gph/18,000 gallons
0.1 gph/0.05 gph/15,000 gallons

0.1 gph/0.05 gph/15,000 gallons
0.1 gph/0.05 gph/45,000 gallons
                                                     28
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
ths method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                     PART II

          LEAK DETECTION EQUIPMENT

               SPECIFICATIONS
               ALPHABETICAL BY COMPANY,
                 THEN BY TEST METHOD,
               NEXT BY EQUIPMENT MODEL,
                  FINALLY BY LEAK RATE
                         29
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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 Certification:

 Leak Threshold:


 Applicability:

 Tank Capacity:


 Waiting Time:




 Test Period:
Temperature:

Groundwater:



Calibration:



Comments:
                                                         Revision Date: April 18,1997
            Absolute Precision Testing Systems

                      APT/BKG 1000

VOLUMETRIC TANK TIGHTNESS TEST METHOD (OVERFILL)

   Leak rate of 0.05 gph with PD=99.2310% and PFA=0.5451 %.       ;

   0.02587 gph. A leak is declared if the output of the measurement system equals or
   exceeds this threshold.

   Gasoline, diesel, aviation fuel, fuel oil #4, fuel oil #6 and solvents.

   Maximum of 6,000 gallons.
   Tank must be minimum 100% full.

   Minimum of 36 hours between delivery and testing.
   Minimum of 1.5 hours between "topping off' and testing.
   Total minimum waiting  time is 36 hours.
   There must be no dispensing or delivery during waiting time.

   Minimum of 1  hour, 48  minutes.
   Volume data is collected and recorded by a computer.
   Leak rate is calculated  from 1 minute of test.
   There must be a minimum of 10 tests performed to conclusively declare a tank tight
   or declare a leak.
   There must be no dispensing or delivery during test.

   Average for product is determined by a resistance temperature sensor.

   Depth to  groundwater in backfill must  be determined.  If groundwater is  above
   bottom of tank, product level must be adjusted to provide a  height difference of 6
   feet between product and water level.

   Level sensors are calibrated before each test.
   Temperature sensor must be checked and  calibrated  if necessary in accordance
   with manufacturer's instructions.

   Not evaluated using manifold tank system.
Absolute Precision Testing Systems
P.O. Box 6715
Bloomington, IN 47407
Tel: (800) 355-2780
                           Evaluator: Dixon Consulting Inc.
                           Tel: (812)332-4144

                           Date of Evaluation: 12/05/95
                                                30
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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Detector:

Output type:
Sampling frequency:
Operating principle:

Test Results:
                                  Advanced Tank Technology, Inc.

                                       Leak Tracer Dye (LTD)

                        LIQUID-PHASE OUT-OF-TANK PRODUCT DETECTOR
qualitative
intermittent
product solubility - color development
                                                                              Revision Date: April 18,1997
Accuracy (%)
Detection time (min:sec)
Fall time (min:sec)
Lower detection limit (cm)

*See glossary.
        unleaded
        gasoline
        100 (above 23 ppm)
        <00:01
        N/A*
        <0.32
synthetic
gasoline
100 (above 8 ppm)
<00:01
N/A
<0.32
Specificity Results:
Activated: unleaded gasoline, synthetic gasoline, n-hexane, diesel fuel, jet-A fuel,  JP-4 jet fuel, toluene,
xylene(s).

Manufacturer's specifications: LTD develops color in alcohols,  ketones, solvents, and PCBs as well as
petroleum products.

Comments:  EPA and many states require detection  of  1/8  inch (0.32 cm) of  produqt for groundwater
monitoring.
Detector is not reusable, and must be replaced after contact with hydrocarbons.
Detector is listed as "intermittenf because it must be checked periodically; it does not automatically alarm
when hydrocarbon is detected.
Advanced Tank Technology, inc.
820 N. Sylvania
Fort Worth, TX 76111
Tel: (817) 831-3246
                      Evaluator: .Scientific Information Services
                      Tel: Not Available

                      Date of Evaluation: 02/02/93
                                                 31
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
ttie method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                                                               Revision Date: April 18,1997
                                             Agar Corp.

                                   LEAKWISE Groundwater Monitor
                         ID-220 Series Hydrocarbon on Water Detector System

                         LIQUID-PHASE OUT-OF-TANK PRODUCT DETECTOR

 Detector:

 Output type:              qualitative
 Sampling frequency:       continuous
 Operating principle:        , radio frequency (RF) attenuation


 Test Results:
                                     unleaded                           synthetic
                                     gasoline                            gasoline
 Accuracy (%)                        100                                100
 Detection time (min:sec)              <00:01                             <00:01
 Fall time (min:sec)                    <00:01                             <00:01
 Lower detection limits (cm)
   "Standard" setting                  0.16                                0.32
   "Sensitive" setting                  0.03                                0.03


 Specificity Results:
 Activated: unleaded gasoline, synthetic gasoline, n-hexane, diesel fuel, jet-A fuel, toluene, xylene(s), water.

 Manufacturer's specifications:
 Operating range:

       Resolution:  0.5 mm of hydrocarbon on water or brine
       Variation : groundwater fluctuation of+/-1 meter standard (larger variations optional)
       Oil thickness :  0.3 - 25 mm optional (higher ranges available)
       Temperature :  0 - 70 degrees C (higher available)

 Comments:
 EPA and many states require detection of 1/8 inch (0.32 cm)  of product for groundwater monitoring.
 Detector is reusable.
 Color coded signal lights indicate the presence of air, water, and hydrocarbon liquid when activated (yellow,
 green, and red, respectively).
Agar Corp.                                      Evaluator: Ken Wilcox Associates, Inc.
P.O. Box 802127                                 Tel: (816) 443-2494
Houston, TX 77280-2127
Tel: (713) 464-4451                              Date of Evaluation: 11/15/91
                                                 32
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                      Alert Technologies, Inc.
                                                                               Revision Date: April 18,1997
Certification:


Leak Threshold:


Applicability:

Tank Capacity:


Waiting Time:


Test Period:




Temperature:


Water Sensor:



Calibration:
Comments:
    Alert Model 2000 In-Tank Mass Measurement Probe System
                      (Mass Buoyancy Probe)
              AUTOMATIC TANK GAUGING SYSTEM

Leak rate of 0.2 gph with PD=95.4% and PFA=4.6% (calculated
based on a 1-hour test).

0.1 gph. A leak is declared if the output of the measurement system equals or exceeds
this threshold.                                                                 *

Gasoline, diesel, aviation fuel, fuel oil, waste oil, and solvents.

Maximum of 15,000 gallons.
Tank must be between 50 and 95% full.

Minimum of 15 hours between delivery and testing.
There must be no delivery during waiting time.

Minimum of 2 hours.
Test data are acquired and recorded by a computer.
Leak rate is calculated from data determined to be valid by statistical analysis.
There must be no dispensing or delivery during test.

Product measurement not required. System measures product mass (which is not affected
by temperature) instead of product volume.

Must be used to detect water ingress.
Minimum detectable water level in the tank is 0.175 inch (0.27 inch for waste oil).
Minimum detectable change in water level is 0.088 inch (0.031 inch for waste oil).

Mass measurement probe and water sensor must be checked and calibrated if necessary in
accordance with manufacturer's instructions.
System is battery operated and does not automatically generate a hard copy of the leak
test result.  However, a hard copy of the results can be obtained by transfer of data to another
unit (see manufacturer's instructions for further details).
System is not equipped with any alarms (e.g. high water alarm, or failed leak test alarm).

Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
lower head pressure).   Consistent testing at  low levels could  allow a  leak  to  remain
undetected.
EPA leak detection regulations require testing of the portion of the tank system which routinely
contains product.
2000-X model (which was certified for use on tanks up to 30,000 gal capacity) and 2000-XB
model (which was certified for use on tanks up 72,948 gallons) are still under review.
Alert Technologies, Inc.
5400 NewPort Dr., Suite 13
Rolling Meadows, IL 60008
Tel: (708)392-0060
                                Evaluator: Midwest Research Institute
                                Tel: (816) 753-7600

                                Date of Evaluation: 03/11/91
                                                 33
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                       Alert Technologies, Inc.
                                                                              Revision Date: April 18,1997
Certification:

Leak Threshold:




Applicability:

Tank Capacity:

Waiting time:


Test Period:


Test Pressure:


Groundwater:



Calibration:

Comments:
                                   Alert Ullage System Model 1050
                                     (Pressure and Vacuum Test)

                   NON-VOLUMETRIC TANK TIGHTNESS TEST METHOD (ULLAGE)

                   Leak rate of 0.1 gph with PD=100% and PFA=0%.

                   A leak is declared when the ratio of the ultrasonic signal (when the
                   tank is under pressure or vacuum) to the background signal
                   (prior to pressurization or evacuation) equals or exceeds 1.5 for either 12 kHz or
                   25 kHz frequency band.

                   Gasoline, diesel, aviation fuel, heavy fuel oils #2 through #6, waste oil, and solvents.

                   Maximum ullage volume is 6,000 gallons.

                   None between delivery and testing if test is conducted after an underfilled
                   tank tightness test.

                   Minimum of 5 minutes.
                   Test data are acquired and recorded by a computer.

                   Net pressure of 1.5 psi or vacuum of 1.0 psi must be maintained in ullage:
                   Pressure or vacuum must be maintained in the tank with a loss of less than 0.4 psi.

                   Depth to groundwater in backfill must be determined. If groundwater is present
                   outside ullage, vacuum test in ullage must not be used.
                   Pressure test must be conducted using a net pressure of 1.5 psi  in the ullage.

                   System must be calibrated before each test.                          !

                   Manifold tank systems must be isolated prior to test.
                   Evaluated using unleaded gasoline.
                   Tests only ullage portion of tank.
                   Product-filled portion of tank must be tested using an underfilled test method.
                   Vibration due tc^nearby equipment or dripping condensation may interfere with test.
                   Microphone wa's located 25 feet away from leak source during evaluation.
                   Vacuum test method may not be effective in some backfill (such as clay)  because it may
                   plug holes in tank.
                   If soil is saturated with product, air or water ingress may not be detected by vacuum
                   test.  A well point in the backfill may help identify presence of this condition.
Alert Technologies, Inc.
5400 NewPort Dr., Suite 13
Rolling Meadows, IL 60008
Tel: (708)392-0060
                                               Evaluator: Ken Wilcox Associates
                                               Tel: (816) 443-2494

                                               Date of Evaluation: 03/15/92
                                                34
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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Certification:

Leak Threshold:




Applicability:

Tank Capacity:

Waiting time:


Test Period:


Test Pressure:



Groundwater:


Calibration:

Comments:
                                                           Revision Date: April 18,1997
                    Alert Technologies, Inc.

        Alert Ullage System Model 1050 X (Vacuum Test)

NON-VOLUMETRIC TANK TIGHTNESS TEST METHOD (ULLAGE)

Leak rate of 0.1 gph with PD=100% and PFA=0%.

A leak is declared when the ratio of the ultrasonic signal (when the
tank is under vacuum) to the background signal
(prior to evacuation) equals or exceeds 1.5 for either 12 kHz or
25 kHz frequency band.

Gasoline, diesel, aviation fuel, heavy fuel oils #2 through #6, waste oil, and solvents.

Maximum ullage volume is 24,000 gallons.

None between delivery and testing if test is conducted after an underfilled
tank tightness test.

Minimum of 5 minutes.
Test data are acquired and recorded by a computer.

Vacuum of 1.5 psi must be maintained in ullage.
Vacuum must be maintained in the tank with a loss of less than 0.4 psi.
Zero pressure (background) must produce a flat line response.

Depth to groundwater in backfill must be determined.  If groundwater is present
outside ullage, test must not be used.

System must be calibrated before each test.

Manifold tank systems must be isolated prior to test.
Evaluated using #4 fuel oil.
Tests only ullage portion of tank.
Product-filled portion of tank must be tested using an underfilled test method.
Vibration due to nearby equipment or dripping condensation may interfere with test.
Microphone was located 25 feet away from leak source during evaluation.
Vacuum test method may not be effective in some backfill (such as clay) because it may
plug holes in tank.
If soil is saturated with product, air or water ingress may not be detected by vacuum
test. A well point in the backfill may help identify presence of this condition.
Alert Technologies, Inc.
5400 NewPort Dr., Suite 13
Rolling Meadows, IL 60008
Tel: (708)392-0060
                             Evaluator: Ken Wilcox Associates
                             Tel: (816) 443-2494

                             Date of Evaluation: 02/28/94
                                                 35
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

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 Certification:


 Leak Threshold:


 Applicability:


 Tank Capacity:


 Waiting time:



 Test Period:
Temperature:


Groundwater:
Calibration:

Comments:
                                                            Revision Date: April 18,1997
                    Alert Technologies, Inc.

                        Alert Model 1000

 VOLUMETRIC TANK TIGHTNESS TEST METHOD (UNDERFILL)

 Leak rate of 0.1 gph with PD=98.2% and PFA=1.8% for 2 hr test.
 Leak rate of 0.1 gph with PD=99.8% and PFA=0.2% for 4 hr test.        ;

 0.05 gph. A leak is declared if the output of the measurement system equals or exceeds
 this threshold.

 Gasoline, diesel, aviation fuel, fuel oils #4 and #6, waste oil, and solvents.
 Other liquids may be tested after consultation with the manufacturer.

 Maximum of 30,000 gallons.
Tank must be between 20 and 95% full.

 Minimum of 1 hour between delivery and testing.
 Minimum of 1 minute between dispensing and testing.
 There must be no delivery during waiting time.

 Minimum of 2 hours to achieve PD  = 98.2% and PFA = 1.8%.
 Minimum of 4 hours to achieve PD  = 99.8% and PFA = 0.2%.
 Test data are acquired and recorded by a computer.
 Leak rate is calculated from the data determined to be valid by statistical analysis.
 There must be no dispensing or delivery during test.

 System measures product mass (which is not affected
 by temperature) instead of product volume.

 Depth to groundwater in backfill must be determined. If groundwater is above
 bottom of tank, product level must  be adjusted to provide a minimum net
 pressure of 2 psi at bottom of tank  during test.  There must be a difference of at least
 73 inches between groundwater level and product level to provide a net  pressure of
 2 psi at bottom of tank during test.

 Load cell must be calibrated before each test.

 Not evaluated using manifold tank  systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
lower head pressure).   Consistent testing at  low levels  could  allow  a  leak to  remain
undetected.
EPA leak detection regulations require testing of the portion of the tank system which
routinely contains product.
Alert Technologies, Inc.
5400 NewPort Dr., Suite 13
Rolling Meadows, IL 60008
Tel:  (708)392-0060
                             Evaluator: Ken Wilcox Associates
                             Tel: (816) 443-2494

                             Date of Evaluation: 02/28/94
                                                 36
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
tha method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:


Applicability:



Tank Capacity:


Waiting Time:



Test Period:




Temperature:


Water Sensor:



Calibration:


Comments:
                                                            Revision Date: April 18,1897
                    Andover Controls Corp.

                        Andover Infinity
                 CX9QOO, CX9200, and CMX240
                    (Magnetostrictive Probe)
             AUTOMATIC TANK GAUGING SYSTEM

Leak rate of 0.2 gph with PD=99.9% and PFA <0.1 %.

0.1 gph. A leak is declared if the output of the measurement system equals or exceeds
this threshold.

Gasoline, diesel, aviation fuel, fuel oils #4 and #6 and solvents.
Other liquids with known coefficients of expansion and density may be
tested after consultation with the manufacturer.

Maximum of 15,000 gallons.
Tank must be between 50 and 95% full.

Minimum of 6 hours between delivery and testing.
Minimum of 3 hours between dispensing and testing.
There must be no delivery during waiting time.

Minimum of 6 hours.
Test data are acquired and recorded by a computer.
Leak rate is calculated as the average of subsets of all data collected.
There must be no dispensing or delivery during test.

Average for product is determined by a minimum of 3 resistance temperature
detectors (RTDs).

Must be used to detect water ingress.
Minimum detectable water level in the tank is 0.35 inch.
Minimum detectable change in water level is 0.003 inch.

RTDs and probe must be checked and calibrated in accordance with
manufacturer's instructions.

Not evaluated using  manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
lower head pressure).  Consistent testing at low levels could allow a leak to remain
undetected.
EPA  leak  detection  regulations require  testing  of the portion of the tank  system which
routinely contains product.
 Andover Controls Corp.
 300 Brickstone Square
 Andover, MA 01810
 Tel: (508)470-0555
                              Evaluaton Ken Wilcox Associates
                              Tel: (816) 443-2494

                              Date of Evaluation: 05/24/93
                                                  37
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                        Andover Controls Corp.
                                                                               Revision Date: April 18,1997
 Certification:

 Leak Threshold:


 Applicability:



 Tank Capacity:


 Waiting Time:



 Test Period:




 Temperature:


 Water Sensor:



 Calibration:


 Comments:
          Andover Infinity CX9000, CX9200, and CMX240
                    (Magnetostrictive Probe)
             AUTOMATIC TANK GAUGING SYSTEM

 Leak rate of 0.1 gph with PD=97.6% and PFA=2.4%.

 0.05 gph. A leak is declared if the output of the measurement system equals or exceeds
 this threshold.

 Gasoline, diesel, aviation fuel, fuel oils #4 and #6, and solvents.
 Other liquids with known coefficients of expansion and density may be tested
 after consultation with the manufacturer.

 Maximum of 15,000 gallons.
 Tank must be between 50 and 95% full.

 Minimum of 6 hours between delivery and testing.
 Minimum of 3 hours between dispensing and testing.
 There must be no delivery during waiting time.

 Minimum of 6 hours.
 Test data are acquired and recorded by a computer.
 Leak rate is calculated as the average of subsets of all data collected.
 There must be no dispensing or delivery during test.

 Average for product is determined by a minimum of 3 resistance temperature
 detectors (RTDs).

 Must be used to detect water ingress.
 Minimum detectable water level in the tank is 0.35 inch.
 Minimum detectable change in water level is 0.003 inch.

 RTDs and probe must be checked and calibrated in accordance with
 manufacturer's instructions.

 Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
lower head  pressure).   Consistent testing at low levels could allow a leak  to  remain
undetected.
EPA leak detection regulations require testing  of the portion of the  tank system which
routinely contains product.
Andover Controls Corp.
300 Brickstone Square
Andover, MA 01810
Tel: (508)470-0555
                              Evaluator: Ken Wilcox Associates
                              Tel: (816) 443-2494

                              Date of Evaluation: 05/24/93
                                                 38
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:


Applicability:

Tank Capacity:


Waiting Time:



Test Period:
Temperature:


Water Sensor:



Calibration:


Comments:
                                                            Revision Date: April 18,1997
                    Andover Controls Corp.

                    Versions AC8+/AC256+
                   (Magnetostrictive Probe)

            AUTOMATIC TANK GAUGING SYSTEM

Leak rate of 0.2 gph with Po=99.5% and PFA=0.5%.

0.1 gph. A leak is declared if the output of the measurement system equals or exceeds
this threshold.

Gasoline, diesel, aviation fuel, fuel oil, and solvents.

Maximum of 15,000 gallons.
Tank must be between 50 and 95% full.

Minimum of 6 hours between delivery and testing.
Minimum of 4 hours between dispensing and testing.
There must be no delivery during waiting time.

Minimum of 6 hours.
Test data are acquired and recorded by a computer.
Leak rate is calculated as the difference between first and last data collected,
divided by elapsed time between first and last volume changes observed.
There must be no dispensing or delivery during test.

Average for product is determined by a minimum of 3 resistance temperature
detectors (RTDs).

Must be used to detect water ingress.
Minimum detectable water level in the tank is 0.99 inch.
Minimum detectable change in water level is 0.01 inch.

RTDs and probe must be checked and calibrated in accordance with
manufacturer's instructions.

Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
lower head  pressure).  Consistent testing at low  levels could allow a  leak  to remain
undetected.
EPA leak detection regulations require testing of the portion of the  tank system which
routinely contains product.
Andover Controls Corp.
300 Brickstone Square
Andover, MA 01810
Tel: (508)470-0555
                              Evaluaton Ken Wilcox Associates
                              Tel: (816) 443-2494

                              Date of Evaluation: 02/03/92
                                                 39
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:


Applicability:


Tank Capacity:


Waiting Time:


Test Period:




Temperature:


Water Sensor:



Calibration:


Comments:
                                                           Revision Date: April 18,1997
                   Arizona Instrument Corp.

                Encompass MTS IPAM #17-903
               (Magnetostrictive Probe #17-9300)

             AUTOMATIC TANK GAUGING SYSTEM

Leak rate of 0.2 gph with PD = 97.80% and PFA = 2.2%.

0.1 gph.  A leak is declared if the output of the measurement system equals or exceeds
this threshold.

Gasoline, diesel, aviation fuel, fuel oils #4 and #6, waste oil, and solvents.
Other liquids may be tested after consultation with the manufacturer.

Maximum of 15,000 gallons.
Tank must be between 50 and 95% full.

Minimum of 3 hours between delivery and testing.
There must be no dispensing or delivery during waiting time.

Minimum of 6 hours.
Test data are acquired and recorded by a computer.
Leak rate is calculated from data determined to be valid by statistical analysis.
There must be no dispensing or delivery during test.

Average for product is determined by a minimum of 5 resistance temperature
detectors (RTDs).

Must be used to detect water ingress.
Minimum detectable water level in the tank is 1.29 inches.
Minimum detectable change in water level is 0.0034 inch.

RTDs and probe must be checked and calibrated in accordance with             _
manufacturer's instructions.

Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
lower head pressure). Consistent testing at low levels could allow a  leak to remain
undetected.
EPA leak detection regulations require testing of the portion of the tank system which
routinely contains product.
Encompass software provides for remote access capabilities.
Arizona Instrument Corp.
4114 E. Wood St.
Phoenix, AZ  85040-1941
Tel:  (800)528-7411
                             Evaluator: Ken Wilcox Associates
                             Tel: (816) 443-2494

                             Date of Evaluation: 08/22/94
                                                40
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:


Applicability:


Tank Capacity:


Waiting Time:


Test Period:




Temperature:


Water Sensor:



Calibration:


Comments:
                                                            Revision Date: April 18, 1997
                   Arizona Instrument Corp.

                Encompass USFIPAM #17-901
                  (Ultrasonic Probe #17-9100)

             AUTOMATIC TANK GAUGING SYSTEM

Leak rate of 0.2 gph with PD = 99.94% and PFA = 2.06%.

0.1 gph.  A leak is declared if the output of the measurement system equals or exceeds
this threshold.

Gasoline, diesel, aviation fuel, fuel oils #4 and #6, waste oil, and solvents.
Other liquids may be tested after consultation with the manufacturer.

Maximum of 15,000 gallons.
Tank must be between 50 and 95% full.

Minimum of 3 hours between delivery and testing.
There must be no dispensing or delivery during waiting time.

Minimum of 6 hours.
Test data are acquired and recorded by a computer.
Leak rate is calculated from data determined to be valid by statistical analysis.
There must be no dispensing or delivery during test.

Average for product is obtained by a single temperature sensor that measures  .
change in ultrasonic wave velocity.

Must be used to detect water ingress.
Minimum detectable water level in the tank is 1.86 inches.
Minimum detectable change in water level is 0.012 inch.

Temperature sensor and probe must be checked and calibrated in accordance .with
manufacturer's instructions.

Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
lower head pressure).   Consistent testing at low levels could allow  a leak to  remain
undetected.
EPA leak detection regulations require testing of the portion of the tank system which
routinely contains product.
Encompass software provides for remote access capabilities.
Arizona Instrument Corp.
4114 E. Wood St.
Phoenix, AZ  85040-1941
Tel:  (800)528-7411
                             Evaluator: Ken Wilcox Associates
                             Tel: (816) 443-2494

                             Date of Evaluation: 08/22/94
                                                41
Appearance on this list is not to be constated as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                             Revision Date: April 18,1997
                                     Arizona Instrument Corp.

               Soil Sentry Liquid 330(17-330-A/17-330-B), TLM-830, ENCOMPASS APAM
                             Probes 17-141A, 17-142A, 17-143A, 17-144A

                             LIQUID-PHASE INTERSTITIAL DETECTOR

 Detector:

 Output type:               qualitative
 Sampling frequency:        continuous
 Operating principle:        refraction


 Test Results:
                             unleaded            synthetic
                             gasoline            gasoline                diesel fuel     water
 Accuracy (%)                 100                100                    N/D**         N/D
 Detection time (min:sec)       00:03              00:03                   N/D           N/D
 Fall time (hnmin:sec)          Manual reset        Manual reset            N/D           N/D
 Lower detection limits (cm)
   17-141A                   0.25                0.28                    0.15           0.1
   17-142A                   0.25                0.30                    0.18           0.18
   17-143A                   0.03                0.15                    0.03           0.13
   17-144A                   0.28                0.30                    0.30           0.15

 ** See glossary.

 Specificity Results:
 Activated: unleaded gasoline, synthetic gasoline, n-hexane, diesel fuel, jet-A fuel, toluene*, xylene(s), water.

 "Only 17-143A was tested with toluene.

 Comments:
 EPA and many states require detection of 1/8 inch (0.32 cm) of product for groundwater
 monitoring.
 Detectors are listed as interstitial due to intended use.
 Test procedures used were a combination of EPA's "Standard Test Procedures for Evaluating
 Leak Detection Methods: Liquid-Phase Out-of-Tank Product Detectors^ March 1990, and EPA's
 "Standard Test Procedures for Evaluating Leak Detection Methods: Nonvolumetric Tank Tightness
 Testing Methods," March 1990.
 Detector is reusable.
 Although ENCOMPASS APAM (Accessory Probe Access Module) was not included in evaluations, according
 to manufacturer, probes perform in the same manner when connected to any one of these 3 systems.
Arizona Instrument Corp.                         Evaluator: Ken Wilcox Associates
4114 E. Wood St.                               Tel: (816) 443-2494
Phoenix, AZ 85040-1941
Tel: (800)528-7411                              Dates of Evaluation: 12/29/92 and 01 /08/93
                                                42
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                              Revision Date: April 18,1997
                                      Arizona Instrument Corp.

                                        Soil Sentry Twelve-X

                        VAPOR-PHASE OUT-OF-TANK PRODUCT DETECTOR

 Detector:                                                                            .

 Output type:           quantitative
 Sampling frequency:   continuous
 Operating principle:    metal oxide semiconductor


 Test Results:
                                     unleaded          synthetic
                                     gasoline           gasoline
 Accuracy" (%)                        170               120
 Bias" (%)                            60                8.0
 Precision* (%)                        6.3                7.7
 Detection time (min:sec)               12:20             12:27
 Fall time" (min:sec)                    11:53             11:53
 Lower detection limit (ppm)             150               140

 * For tests conducted with 1000 ppm of test gas.
 ** Testing was done using a JP-5 jet fuel concentration of 90 ppm in humidified air.
 *** See glossary.

 Specificity Results:
 Percentages:
 unleaded gasoline            170
 synthetic gasoline             110
 n-hexane                    110
 JP-4 jet fuel                  90
 toluene                      43
 xylene( s)                    22

 Manufacturer's specifications:
 Calibration is recommended on an annual basis, or whenever the sensor or the main printed circuit board is
 replaced.

 Comments:
 Test procedures used were Radian Corporation's draft report "Development of
 Procedures to Assess the Performance of External Leak Detection Devices: Vapor-Phase
 ASTM-Formatted Methods," June 29,1990.
 Please note that the following specification sheet is a separate evaluation for this same system.
Arizona Instrument Corp.                         Evaluator: Radian Corp.
4114 E. Wood St.                               Tel: (512) 454-4797
Phoenix, AZ 85040-1941
Tel: (800)528-7411                              Dates of Evaluation: 12/28/90 and 04/17/91
                                                43
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Detector:

Output type:
Sampling frequency:
Operating principle:
                                     Arizona Instrument Corp.

                                       Soil Sentry Twelve-X

                       VAPOR-PHASE OUT-OF-TANK PRODUCT DETECTOR
quantitative
continuous
metal oxide semiconductor
                                                                             Revision Date: April 18,1997
Test Results:

Accuracy (%)
Bias
Precision
Detection time (min)
Fall time (min)
Lower detection limit
             diesel fuel *
             N/D**
             -20 ppm @ 50 ppm
             12 ppm
             15
             15
             10 ppm
JP-8 iet fuel*
N/D
N/D   ,
N/D
15
15
<0.01 gal/hr
* A limited number of tests were conducted to determine the response of the system to diesel and JP-8 jet
  fuel.
** See glossary.

Specificity Results:
Activated: diesel fuel, JP-8 jet fuel.

Manufacturer's specifications:
Calibration is recommended on an annual basis, or whenever the sensor or the main printed circuit board is
replaced.

Comments:
Test procedures used were modified by evaluator from EPA's "Standard Test Procedures for Evaluation Leak
Detection Methods: Vapor-Phase Out-of-Tank Product Detectors,'1 March 1990, and Radian
Corporation's draft report "Development of Procedures to Assess the Performance of External Leak
Detection Devices: Vapor-Phase ASTM-Formatted Methods," June 6,1990.
Please note that the previous specification sheet is a separate evaluation for this same system.
Arizona Instrument Corp.
4114 E. Wood St.
Phoenix, AZ 85040-1941
Tel: (800)528-7411
                         Evaluator: Ken Wilcox Associates
                         Tel: (816) 443-2494

                         Date of Evaluation: 02/16/92
                                                44
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                Armstrong Monitoring Corporation

                                       ALERTMASTER 5100
                                  Leak Detection Cable AMC-5007

                        LIQUID-PHASE OUT-OF-TANK PRODUCT DETECTOR
                                                                             Revision Date: April 18,1997
Detector:

Output type:
Sampling frequency:
Operating principle:

Test Results:*
Accuracy (%)
Detection time (min:sec)
Fall time (min:sec)
Lower detection limit (cm)
qualitative
continuous
electrical conductivity
        unleaded
        gasoline .
        100
        00:35
        02:30
        0.04
*For tests conducted with 0.32 cm of floating product.

Specificity Results:
Activated: unleaded gasoline.

Manufacturer's specifications:
Operating temperature: 32 degrees F to 104 degrees F (0 degrees C to 40 degrees C).

Comments:
EPA and many states require detection of 1/8 inch (0.32 cm) of product for groundwater monitoring.
Detector is reusable.
Armstrong Monitoring Corporation
215 Colonnade Road South
Nepean, Ontario, Canada K2E 7K3
Tel: (613) 225-9531
                     Evaluator: Environment Canada
                     Tel: (613) 991-1108

                     Date of Evaluation: 12/03/92
                                                45
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                Armstrong Monitoring Corporation

                                       ALERTM ASTER 5100
                                     Vapor Sensor AMC F4000

                        LIQUID-PHASE OUT-OF-TANK PRODUCT DETECTOR
                                                                            Revision Date: April 18,1997
Detector:

Output type:
Sampling frequency:
Operating principle:

Test Results:
qualitative
continuous
metal oxide semiconductor
Accuracy (%)
Detection time (min:sec)
Fall time (min:sec)
Lower detection limit (ppm)

Specificity Results:
Activated: benzene.

Comments:
Detector is reusable.
       benzene
       100
       00:10
       04:02
       300
Armstrong Monitoring Corporation
215 Colonnade Road South
Nepean, Ontario, Canada K2E 7K3
Tel: (613) 225-9531
                     Evaluator: Environment Canada
                               Tel: (613) 991-1108

                     Date of Evaluation: 12/03/92
                                                46
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
 Detector:

 Output type:
 Sampling frequency:
 Operating principle:

 Test Results:
 Accuracy (%)
 Detection time (min:sec)
 Fall time (hrmin:sec)
 Precision (in.)
 Lower detection limit (in)
                                      Beaudreau Electronics, Inc.

                                       Model 404 Pump Cut-Off

                              LIQUID-PHASE INTERSTITIAL DETECTOR
qualitative
continuous
float switch
                                                                                Revision Date: April 18,1997
    unleaded
    gasoline

    <00:01
    manual reset
    0.0124
    0.89
water

<00:01
manual reset
0.0067
0.68
diesel fuel

<00:01
manual reset
0.0167
0.72
 Specificity Results:
 Activated: unleaded gasoline, diesel fuel, water.                          '
 Manufacturer and evaluator claim sensor will respond to any liquid.

 Manufacturer's Specifications:
 Manufacturer states that system requires no calibration.

 Comments:
 Test procedures used were "Alternative Test Procedures for Evaluation of Leak Detection Methods:
 Evaluation of Liquid Level Sensors," September 1996, by Ken Wilcox Associates.
 Detector is reusable, but must be manually reset after activating.
Beaudreau Electronics, Inc.
23 industrial Drive
Waterford, CT 06285-9715
Tel: (203)443-6570
                     Evaluator: Ken Wilcox Associates
                     Tel: (816) 443-2494

                     Date of Evaluation: 07/20/94
                                                 47
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                              Revision Date: April 18,1997
                                     Beaudreau Electronics, Inc.

                                      Model 406 Pump Cut-Off

                              LIQUID-PHASE INTERSTITIAL DETECTOR

Detector:

Output type:               qualitative
Sampling frequency:       continuous
Operating principle:        refractive index of liquids

Test Results:
                                 unleaded
                                 gasoline            water             diesel fuel
Accuracy (%)                     100                100               100
Detection time (min:sec)           <00:01             <00:01            <00:01
Fall time (hnmin:sec)              manual reset        manual reset      manual reset
Precision (std. dev.)               0.003474           0.005329          0.001923
Lower detection limit (in)           0.357              0.369             0.321
Probability of detection (%)        100                100               100
Probability of false alarm (%)       000


Specificity Results:
Activated: unleaded gasoline, diesel fuel, water.
Manufacturer and evaluator claim sensor will respond to any liquid.

Manufacturer's Specifications:
Manufacturer states that system requires no calibration.

Comments:
Test procedures used were modified by evaluator from EPA's "Standard Test Procedures for Evaluation of
Leak Detection Methods: Evaluation of Liquid Level Sensors, Liquid-Phase Out-of-Tank Product Detectors,"
March 1990.
Detector is reusable, but must be cleaned after activating in order to reset.
 Beaudreau Electronics, Inc.                      Evaluator: Ken Wilcox Associates
 23 Industrial Drive                               Tel: (816) 443-2494
 Waterford, CT 06285-9715
 Tel: (203)443-6570                              Date of Evaluation: 07/20/94



 Appearance on this list Is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                           Bell Avon, Inc.

                                  VIGILANT Leak Detection System

                           PRESSURE/VACUUM INTERSTITIAL MONITOR
                                                                               Revision Date: April 18,1997
Certification:

Leak Threshold:


Applicability:


Tank Capacity:


Waiting Time:

Test Period:

Comments:
Leak rate of 0.1 gph with PD=100% and PFA=0%.

A leak is declared  when  changes in interstitial  vacuum exceed  a predetermined
change in slope versus time curve.

Gasoline, diesel fuel, aviation fuel, fuel oils #4 and #6, waste oil, and other chemicals
compatible with flexible liner.

Maximum of 15,000 gallons based on interstitial volume resulting when flexible liner
is properly fitted and held in position against rigid tank wall.

Minimum of 20 minutes between delivery and testing.

Minimum of 40 minutes.

System is located within the interstitial space between a properly fitted and installed
flexible liner inside a rigid tank.
Flexible liner is held in position by maintaining a vacuum on interstitial space.
Interstitial vacuum is analyzed continuously by a microprocessor to  determine rate of
change.
System allows for permeation of vapor from stored substance into interstitial space.
Vapor recovery of product vapor from interstitial space is feasible when required.
Vapors discharged from vacuum pump must meet applicable air quality standards.
Baseline  characteristics  of tank behavior must be  determined during setup of the
system.
System detects breaches in either flexible internal liner or rigid tank.
Groundwater may be above bottom of rigid tank.
Test procedures  used were modified by evaluator from EPA's "Standard  Test
Procedures for Evaluating Leak Detection Methods: Nonvolumetric Tank Tightness
Testing Methods," March 1990.
Bell Avon, Inc.
1200 Martin Luther King, Jr. Blvd.
Picayune, MS 39466-5427
Tel: (601) 799-1217
                         Evaluator: Ken Wilcox Associates
                         Tel: (816) 443-2494

                         Date of Evaluation: 11/16/95
                                                 49
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                              Revision Date: April 18,1997
                                         Brooks KWK, Inc.

                                      Leak Detection Systems,
                           KW-140 / KW-240 Monitors with Type 1 Sensor

                        LIQUID-PHASE OUT-OF-TANK PRODUCT DETECTOR

Detector:

Output type:               qualitative
Sampling frequency:        continuous
Operating principle:        product soluble

Test Results:
                                               unleaded                    synthetic
                                               gasoline                    gasoline
Accuracy (%)                                   100                         100
Detection time (min:sec)                         00:24                       00:09
Fall time (min:sec)           •                   N/A*                        N/A
Lower detection limit (cm)                        0.01                         0.01

* See glossary.

Specificity Results:
Activated: unleaded gasoline, synthetic gasoline, n-hexane, diesel fuel, jet-A jet fuel, toluene, xylene(s).

Manufacturer's specifications:
Type 1 sensor is recommended by manufacturer for detecting liquid and vapor gasoline, alcohol-blend
fuels, and JP-4 jet fuel in wet or dry monitor wells.

Comments:
EPA and many states require detection of 1/8 inch (0.32 cm) of product for groundwater monitoring.
Detector is not reusable, and must be replaced after contact with hydrocarbons.
Formerly manufactured by In-Situ, Inc.
Brooks KWK, Inc.                             Evaluator: Carnegie Mellon Research Institute
RR 7, Box 141                                Tel: (412) 268-3495
Wellsboro, PA 16901
Tel: (717) 724-6448                           Date of Evaluation: 07/29/91
                                                 50
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with ail applicable laws and regulations.

-------
                                                                              Revision Date: April 18,1997
                                         Brooks KWK, Inc.

                                      Leak Detection Systems,
                           KW-140 / KW-240 Monitors with Type 2 Sensor

                        LIQUID-PHASE OUT-OF-TANK PRODUCT  DETECTOR

Detector:

Output type:               qualitative
Sampling frequency:        continuous
Operating principle:         product soluble

Test Results:
                                              unleaded                    synthetic
                                              gasoline                    gasoline
Accuracy(%)                                  100                         100
Detection time (min:sec)                        14:39                       08:45
Fall time (min:sec)                             N/A*                        N/A
Lower detection limit (cm)                       0.01                         0.01

* See glossary.

Specificity Results:
Activated: unleaded gasoline, synthetic gasoline, n-hexane, diesel fuel, jet-A fuel, toluene, xylene(s).

Manufacturer's specifications:
Type 2 sensor is recommended by manufacturer for detecting fuel oils #1 and #2, A2M, JP-4 jet fuel,
JP-5 jet fuel, unleaded gasoline, and alcohol blend fuels in wet monitoring wells only.

Comments:
EPA and many states require detection of 1/8 inch (0.32 cm) of product for groundwater monitoring.
Detector is not reusable, and must be replaced after contact with hydrocarbons.
Formerly manufactured by In-Situ, Inc.
Brooks KWK, Inc.                               Evaluator: Carnegie Mellon Research Institute
RR 7, Box 141                                  Tel: (412) 268-3495
Wellsboro, PA 16901
Tel: (717) 724-6448                             Date of Evaluation: 07/29/91
                                                 51
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

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Certification:

Leak Threshold:


Applicability:


Tank Capacity:


Waiting Time:



Test Period:




Temperature:


Water Sensor:



Calibration:

Comments:
                                                              Revision Date: April 18,1997
                   Caldwell Systems Corporation

                          Tank Manager
                         (Ultrasonic Probe)

              AUTOMATIC TANK GAUGING SYSTEM

Leak rate of 0.2 gph with PD=99.9% and  PFA=0.1%.

0.10 gph.  A leak is declared if the output of the measurement system equals or exceeds
this threshold.

Gasoline, diesel,  aviation fuel, fuel oil #4, waste oil, and solvents.
Other liquids may be tested after consultation with the manufacturer.

Maximum of 20,000 gallons.
Tank must be between 50 and 95% full.

Minimum of 12 hours, 25 minutes between delivery and testing.
Minimum of 15 minutes between dispensing and testing.
There must be no delivery during waiting time.

Minimum of 3 hours, 15 minutes.
Test data are acquired and recorded by a computer.
Leak rate is calculated from data determined to be valid by statistical analysis.
There must be no dispensing or delivery  during test.

Average for product is determined from the measurement of the change in
the speed of sound.

Must be used to detect water ingress.
Minimum detectable water level in the tank is 0.921 inch.
Minimum detectable change in water level is 0.0315 inch.

Probe must be checked and calibrated in accordance with manufacturer's instructions.

Not evaluated using manifold tank systems.             —-      .
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
lower head pressure).   Consistent testing  at  low  levels could allow a  leak  to remain
undetected.
EPA leak detection regulations require testing of the portion of the tank system which routinely
contains product.
Water sensor, temperature sensor and product level monitor are contained in a
single ultrasonic probe.
Caldwell Systems Corp.
1200 Diamond Circle, Unit K
Lafayette, CO 80026
Tel: (303)604-6180
                                Evaluator: Ken Wilcox Associates
                                Tel: (816) 443-2494

                                Date of Evaluation: 04/22/96
                                                 52
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
Ihe method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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 Certification:

 Leak Threshold:


 Applicability:


 Tank Capacity:


 Waiting Time:



 Test Period:




 Temperature:


 Water Sensor:



 Calibration:

 Comments:
                                                               Revision Date: ApriMS, 1997
                   Caldwell Systems Corporation

                           Tank Manager
                         (Ultrasonic Probe)

               AUTOMATIC TANK GAUGING SYSTEM

Leak rate of 0.1 gph with PD=96.7% and PFA=3-3%.

0.05 gph. A leak is declared if the output of the measurement system equals or exceeds
this threshold.

Gasoline, diesel, aviation fuel, fuel oil #4, waste oil, and solvents.
Other liquids may be tested after consultation with the manufacturer.

Maximum of 20,000 gallons.
Tank must be between 50 and 95% full.

Minimum of 12 hours, 25 minutes between delivery and testing.
Minimum of 15 minutes between dispensing and testing.
There must be no delivery during waiting time.

Minimum of 3 hours, 15 minutes.
Test data are acquired and recorded by a computer.
Leak rate is calculated from data determined to be valid by statistical analysis.
There must be no dispensing or delivery during test.

Average for product is determined from the measurement of the change in
the speed of sound.

Must be used to detect water ingress.
Minimum detectable water level in the tank is 0.921 inch.
Minimum detectable change in water level is 0.0315 inch.

Probe must be checked and calibrated in accordance with manufacturer's instructions.

Not evaluated using manifold tank systems.
Test^.only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
lower head  pressure).  Consistent testing  at low  levels could allow a leak to remain
undetected.
EPA leak detection regulations require testing of the portion of the tank system which routinely
contains product.
Water sensor, temperature sensor and product level monitor are contained in a
single ultrasonic probe.
Caldweli Systems Corp.
1200 Diamond Circle, Unit K
Lafayette, CO 80026
Tel:  (303)604-6180
                               Evaluator: Ken Wilcox Associates
                               Tel: (816) 443-2494

                               Date of Evaluation: 04/22/96
                                                 53
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                                                              Revision Date: April 18,1997
                                         Campo/Miller, Inc.

                                        LS300 and LS300 N/C

                         AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

Certification:       Leak rate of 3 gph with PD = 96.2% and PFA = 0%.

Leak Threshold:  2.36 gph. A leak is declared if the output of the measurement system equals or exceeds
                   this threshold.

Applicability:       Gasoline, diesel, aviation fuels, fuel oils #4 and #6, waste oil, kerosene, and solvents.

Specification:      System tests pressurized fiberglass and steel pipelines.
                   Tests are conducted at operating pressure.

Pipeline Capacity: Maximum of 35.36 gallons.

Waiting Time:      None between delivery and testing.
                   None between dispensing and testing.

Test Period:       Response time is 10 seconds.
                   Test data are acquired and recorded by a microprocessor.

System Features:  Permanent installation on pipeline.
                   Automatic testing of pipeline.
                   Preset leak threshold.
                   Single leak test to determine if pipeline is leaking.
                   Dispenser shutdown, indicator light and alarm activation if leak is declared.

Calibration:       Manufacturer recommends a weekly self check, activated by the operator, and a full
                   functional test every 30 days, estimated to take 5 minutes to perform.
Campo/Miller, Inc.                               Evaluator: Jetronix Engineering Laboratories
P. O. Box 1809                                  Tel: (213) 377-4668
Porterville, CA 93258                            Rev. by Ken Wilcox Associates
Tel: (209) 781 -6862                              Tel: (816) 443-2494
                                                Date of Evaluation: 06/01/91, Rev. 09/09/94
                                                 54
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                              Revision Date: April 18,1997
                                         Campo/Miller, Inc.

                                   LS300-120 and LS300-120 XLC

                         AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

Certification:      Leak rate of 3 gph with PD = 96.2% and PFA = 0%.

Leak Threshold:  2.36 gph. A leak is declared if the output of the measurement system equals or exceeds
                  this threshold.

Applicability:      Gasoline, diesel, aviation fuels, fuel oils #4 and #6, waste oil, kerosene, and solvents.

Specification:      System tests pressurized fiberglass and steel pipelines.
                   Tests are conducted at operating pressure.

Pipeline Capacity: Maximum of 35.36 gallons.


Waiting Time:      None between delivery and testing.
                   None between dispensing and testing.

Test Period:       Response time is 10 seconds, but can be adjusted between 10 seconds and 2 minutes,
                   30 seconds depending on the bulk modulus* of the piping system.
                   Test data are acquired and recorded by a microprocessor.
                   *See glossary.

System Features:  Permanent installation on pipeline.
                   Automatic testing of pipeline.
                   Preset leak threshold.
                   Single test to determine if pipeline is leaking.
                   Dispenser shutdown, indicator light and alarm activation if leak is declared.

Calibration:       Manufacturer recommends a  weekly self check, activated by the operator, and a full
                   functional test every 30 days, estimated to take 5 minutes to perform.
Campo/Miller, Inc.                               Evaluator: Jetronix Engineering Laboratories
P. O. Box 1809                                  Tel: (213) 377-4668
Porterville, CA 93258                            Rev. by Ken Wilcox Associates
Tel: (209) 781-6862                              Tel: (816) 443-2494
                                                Date of Evaluation: 06/01/91, Rev. 09/09/94
                                                 55
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                               Revision Date: April 18,1997
                                          Campo/Miller, Inc.

                              LS300-120 PLUS and LS300-120 PLUS A/S

                          AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

 Certification:      Leak rate of 3 gph with PD = 96.2% and PFA = 0%.

 Leak Threshold:   2.36 gph. A leak is declared if the output of the measurement system equals or exceeds
                   this threshold.

 Applicability:      Gasoline, diesel, aviation fuels, fuel oils #4 and #6, waste oil, kerosene, and solvents.

 Specification:     System tests pressurized fiberglass and steel pipelines.
                   Tests are conducted at operating pressure.

 Pipeline Capacity: Maximum of 35.36 gallons.

 Waiting Time:     None between delivery and testing.
                   None between dispensing and testing.

 Test Period:       Response time is 10 seconds, but can be adjusted between 10 seconds and 2 minutes,
                   30 seconds depending on the bulk modulus* of the piping system.
                   Test data are acquired and recorded by a microprocessor.
                   *See glossary

 System Features:  Permanent installation on pipeline.
                   Automatic testing of pipeline.
                   Preset threshold.
                   Single test to determine if pipeline is leaking.
                   Dispenser shutdown, indicator light and alarm activation if leak is declared.

 Calibration:       System must be checked annually and calibrated if necessary in accordance with
                   manufacturer's instructions.
Campo/Miller, Inc.                                Evaluator: Jetronix Engineering Laboratories
P. O. Box 1809                                  Tel: (213) 377-4668
Porterville, CA 93258                             Rev. by Ken Wilcox Associates
Tel: (209) 781-6862                              Tel: (816) 443-2494
                                                Date of Evaluation: 06/01/91, Rev. 09/09/94
                                                 56
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                              Revision Date: April 18,1997
                                         Campo/Miller, Inc.

             LS300-120 PLUS, AL; LS300-120 PLUS, AL, A/S and LS300-120 PLUS AL, LSI

                         AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

Certification:      Leak rate of 3gph with PD = 100% and PFA = 0%.

Leak Threshold:  1.5 gph. A leak is declared if the output of the measurement system equals or exceeds
                  this threshold.

Applicability:      Gasoline, diesel, aviation fuels, fuel oils #4 and #6, waste oil, kerosene, and solvents.

Specification:     System tests pressurized fiberglass and steel pipelines.
                  Tests are conducted at operating pressure.

Pipeline Capacity: Maximum of 163 gallons.

Waiting Time:     None between delivery and testing.
                  None between dispensing and testing.

Test Period:      Response time is 10 minutes.
                  Test data are acquired and recorded by a microprocessor.


System Features: Permanent installation on pipeline.
                  Automatic testing of pipeline every 45 minutes.              .
                  Preset threshold.
                  Triplicate testing to determine if pipeline is leaking.
                  Dispenser shutdown, indicator light and alarm activation if leak is declared.

Calibration:       System must be checked annually and calibrated if necessary in accordance with
                  manufacturer's instructions.
Campo/Miller, Inc.                                Evaluator: Ken Wilcox Associates
P.O. Box1809                                  Tel: (816) 443-2494
Porterville, CA 93258
Tel: (209) 781-6862                              Date of Evaluation: 06/23/95
                                                 57
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                              Revision Date: April 18,1997
                                         Campo/Miller, Inc.

              LS300-120 PLUS, AL; LS300-120 PLUS, AL, A/S and LS300-120 PLUS AL,LSI

                         AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

Certification:      Leak rate of 0.2 gph with PD = 100% and PFA = 0%.

Leak Threshold:   0.1 gph. A leak is declared if the output of the measurement system equals or exceeds
                   this threshold.

Applicability:      Gasoline, diesel, aviation fuels, fuel oils #4 and #6, waste oil, kerosene, and solvents.

Specification:     System tests pressurized fiberglass and steel pipelines.
                   Tests are conducted at operating pressure.

Pipeline Capacity: Maximum of 163 gallons.

Waiting Time:     None between delivery and testing.
                   Minimum of 3 hours between dispensing and testing.

Test Period:       Minimum of 25 minutes.       .                                       .
                   Test data are acquired and recorded by a microprocessor.

System Features:  Permanent installation on pipeline.
                   Automatic testing of pipeline when pump has been idle for 3 hours.
                   Preset threshold;
                   Triplicate testing to  determine if pipeline is leaking.
                   Dispenser shutdown, indicator light and alarm activation if leak is declared.

Calibration:        System must be checked annually and calibrated if necessary in accordance with
                   manufacturer's instructions.
Campo/Miller, Inc.                                Evaluator: Ken Wilcox Associates      ,
P.O.Box 1809                                  Tel: (816) 443-2494
Porterville, CA 93258
Tel: (209) 781-6862                              Date of Evaluation: 06/23/95



                                                 58
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                              Revision Date: April 18,1997
                                         Campo/Miller, Inc.

             LS300-120 PLUS, AL; LS300-120 PLUS, AL, A/S and LS300-120 PLUS AL,LSI

                         AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

Certification:      Leak rate of 0.1 gph with PD = 100% and PFA = 0%.

Leak Threshold:  0.05 gph. A leak is declared if the output of the measurement system equals or exceeds
                  this threshold.

Applicability:      Gasoline, diesel, aviation fuels, fuel oils #4 and #6, waste oil, kerosene, and solvents.

Specification:     System tests pressurized fiberglass and steel pipelines.
                  Tests are conducted at operating pressure.

Pipeline Capacity: Maximum of 163 gallons.

Waiting Time:     None between delivery and testing.
                  Minimum of 6 hours between dispensing and testing.

Test Period:      Minimum of 34 minutes.
                  Test data are acquired and recorded by a microprocessor.

System Features: Permanent installation on pipeline.
                  Automatic testing of pipeline when pump has been idle for 6 hours.
                  Preset threshold.
                  Triplicate testing to determine if pipeline is leaking.
                  Dispenser shutdown, indicator light and alarm activation if leak is declared.

Calibration:       System must be checked annually and calibrated if necessary in accordance with
                  manufacturer's instructions.
Campo/Miller, Inc.                                Evaluator: Ken Wilcox Associates
P.O. Box 1809                                  Tel: (816) 443-2494
Porterville, CA 93258
Tel: (209) 781-6862                              Date of Evaluation: 06/23/95



                                                 59
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws arid regulations.

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                                                                             Revision Date: April 18,1997
                                        Computerizing, Inc.

                                         Computank V. 3.0

            STATISTICAL INVENTORY RECONCILIATION TEST METHOD (QUANTITATIVE)

Certification:       Leak rate of 0.1 gph with PD=99.5% and PFA=2%.

Leak Threshold:    0.05 gph. A leak is declared when leak rate equals or exceeds this threshold.

Applicability:       Gasoline, diesel, aviation fuel, and fuel oil #4.

Tank Capacity:      Maximum of 18,000 gallons.

Data Requirement:  Minimum of 30 days of usable product level and flow through data are required.

Comments:         Not evaluated using data from manifold tank systems.
                    Of 41 data sets submitted for evaluation, 17 were not analyzed.
                    Median monthly throughput of tanks evaluated was 2,340 gallons.
                    Leak rates of 0.05, 0.1, and 0.2 gph were used  in evaluation.
                    Data sets evaluated were supplied by evaluator.
Computerizing, Inc.                            Evaluator: Ken Wilcox Associates
PO Box 99                                   Tel: (816) 443-2494
Scottsboro, AL 35768
Tel: (205) 259-1805                           Date of Evaluation: 09/17/92
                                                60
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                              Revision Date: April 18,1997
                                         Control Engineers

                                         Line Leak Detector
                                            Model LLP2

                         AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

Certification:      Leak rate of 3.0 gph with PD = 100% and PFA = 0%.

Leak Threshold:  1.88 gph. A leak is declared if the output of the measurement system
                  equals or exceeds this threshold.

Applicability:      Gasoline, diesel, and aviation fuel.

Specification:     System tests pressurized fiberglass and steel pipelines.
                  Tests are conducted at operating pressure.

Pipeline Capacity: Maximum of 89 gallons.

Waiting Time:     None between delivery and testing.
                  None between dispensing and testing.

Test Period:      Response time is approximately 10 seconds.
                  Test data are acquired and recorded by a permanently installed microprocessor.
                  Calculations are automatically performed by a microprocessor.

System Features: Permanent installation on pipeline.
                  Automatic testing of pipeline.
                  Preset threshold.
                  Single test to determine if pipeline is leaking.
                  Dispensershutdown, indicator light and alarm activation if leak is declared.

Calibration:       System must be checked annually and calibrated if necessary in accordance with
                  manufacturer's instructions.

Comments:       No longer manufactured by Control Engineers.
Control Engineers                                Evaiuaton Midwest Research Institute
P. O. Box 9037                                  Tel: (816) 753-7600
Houma, LA 70361
Tel: (504) 872-4541                              Date of Evaluation: 07/18/94


                                                 61
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                              Revision Date: April 18,1997
                                         Control Engineers

                                         Line Leak Detector
                                            Model LLP2

                         AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

Certification:      Leak rate of 0.1 gph with PD=100% and PFA=0%.

Leak Threshold:   0.05 gph. A leak is declared if the output of the measurement system equals or exceeds
                   this threshold.

Applicability:      Gasoline, diesel, and aviation fuel.

Specification:      System tests pressurized fiberglass and steel pipelines.
                   Tests are conducted at operating pressure.

Pipeline Capacity: Maximum of 89 gallons.

Waiting Time:      None between delivery and testing.
                   Minimum of 15 minutes between dispensing and testing.

Test Period:       Minimum of 30 minutes.
                   Test data are acquired and recorded by a permanently installed microprocessor.
                   Calculations are automatically performed by a microprocessor.

System Features:  Permanent installation on pipeline.
                   Automatic testing of pipeline.
                   Preset threshold.
                   Single test to determine if pipeline is leaking.
                   Dispenser shutdown, indicator light and alarm activation if leak is declared.

Calibration:        System must be checked annually and calibrated if necessary in accordance with
                   manufacturer's instructions.

Comments:        No longer manufactured by Control Engineers.
Control Engineers                                Evaluator: Midwest Research Institute
P. O. Box 9037                                  Tel: (816) 753-7600
Houma, LA 70361
Tel: (504) 872-4541                              Date of Evaluation: 07/18/94


                                                 62
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:


Leak Threshold:


Applicability:

Tank Capacity:


Waiting Time:


Test Period:
Temperature:


Water Sensor:



Calibration:


Comments:
                                                            Revision Date: April 18,1997
                       Control Engineers

           CEI3000 Tank Level Module - Version TLP2
                    Normal/Rapid Test Mode
                    (Magnetostrictive Probe)

             AUTOMATIC TANK GAUGING SYSTEM

Leak rate of 0.2 gph with PD = 95.0% and PFA= 0.1% in normal test mode.
Leak rate of 0.2 gph with PD = 95.0% and PFA = 5.0% in rapid test mode.

0.1 gph. A leak is declared if the output of the measurement system equals or exceeds
this threshold.

Gasoline, diesel, and aviation fuel.

Maximum of 15,000 gallons.
Tank must be between 50 and 95% full.

Minimum of 6 hours, 40 minutes between delivery and testing.
There must be no dispensing or delivery during waiting time.

Minimum of 4 hours for normal test mode and 1 hour, 12 minutes for
rapid test mode.
Test data are acquired and recorded by a microprocessor.
Leak rate is calculated from data determined to be valid by statistical analysis.
There must be no dispensing or delivery during test.

Average for product is determined by a minimum of 5 temperature resistance
detectors (RTDs).

Must be used to detect water ingress.
Minimum detectable water level in the tank is 0.49 inch.
Minimum detectable change in water level is 0.05 inch.

RTDs and probe must be checked and calibrated in accordance with
manufacturer's instructions.

Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
lower head pressure).   Consistent testing at  low  levels could  allow a leak to remain
undetected.
EPA leak detection regulations require testing of the portion of  the tank system which
routinely contains product.
Control Engineers no longer manufactures this equipment.  The company and rights for
this product were sold to Veeder-Root.  For product support information, contact Veeder-
Root.
Veeder-Root
125 Powder Forest Dr.
Simsbury, CT 06070-2003
Tel:  (203)561-2700
                            Eva|uator: Midwest Research Institute
                            Tel: (816) 753-7600

                            Date of Evaluation: 05/27/92
                                                63
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
 Certification:


 Leak Threshold:


 Applicability:

 Tank Capacity:


 Waiting Time:


 Test Period:
Temperature:


Water Sensor:



Calibration:


Comments.:
                                                            Revision Date: April 18,1997
                        Control Engineers

            CEI3000 Tank Level Module - Version TLP2
                     Normal/Rapid Test Mode
                     (Magnetostrictive Probe)
              AUTOMATIC TANK GAUGING SYSTEM

 Leak rate of 0.1 gph with PD = 99.2% and PFA = 0.08% in normal test mode.
 Leak rate of 0.1 gph with PD = 95.0% and PFA = 5.0% in  rapid test mode.

 0.05 gph. A leak is declared if the output of the measurement system equals or exceeds
 this threshold.

 Gasoline, diesel, and aviation fuel

 Maximum of 15,000 gallons.
 Tank must be minimum 95% full.

 Minimum of 6 hours, 40 minutes between delivery and testing.
 There must be no dispensing or delivery during waiting time.

 Minimum of 6 hours, 23 minutes for normal test mode and 2 hours, 40 minutes
 for rapid test mode.
 Test data are acquired and recorded by a microprocessor.
 Leak rate is calculated from data determined to be valid  by statistical analysis.
 There must be no dispensing or delivery during test.

 Average for product is determined  by a minimum of 5 temperature resistance
 detectors (RTDs).

 Must be used to detect water ingress.
 Minimum detectable water level in the tank is 0.49 inch.
 Minimum detectable change in water level is 0.05 inch.

 RTDs and probe must be checked  and calibrated in accordance with
 manufacturer's instructions.

 Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to    ',
 lower head  pressure).  Consistent  testing at low levels could allow a leak to remain
undetected.
 EPA leak detection regulations  require testing of the  portion of the  tank  system which
routinely contains product.
Control  Engineers no  longer manufactures this equipment. The company  and rights for
this product were sold to Veeder-Root.  For product support information, contact Veeder-
Root.
Veeder-Root
125 Powder Forest Dr.
Simsbury, CT 06070-2003
Tel:  (203)561-2700
                            Eyaluator: Midwest Research Institute
                            Tel: (816) 753-7600

                            Date of Evaluation: 05/21/92
                                                64
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:


Applicability;



Tank Capacity:


Waiting Time:



Test Period:




Temperature:

Water Sensor:



Calibration:


Comments:
                                                            Revision Date: April 16,1997
                          EBW, INC.

                 Auto-Stik II and Auto-Stik Jr.
                   (Magnetostrictive Probe)
            AUTOMATIC TANK GAUGING SYSTEM

Leak rate of 0.2 gph with PD=99.9% and PFA=0.1%.

0.1 gph. A leak is declared if the output of the measurement system equals or exceeds
this threshold.

Gasoline, diesel, aviation fuel, fuel oils #4 and #6, and solvents.
Other liquids with known coefficients of expansion and density may be tested
after consultation with the manufacturer.

Maximum of 15,000 gallons.
Tank must be between 50 and 95% full.

Minimum of 6 hours between delivery and testing.
Minimum of 6 hours between dispensing and testing.
There must be no delivery during waiting time.

Minimum of 4 hours.
Test data are acquired and recorded by a computer.
Leak rate is calculated from average of subsets of all data collected.
There must be no dispensing or delivery during test.

Average for product is determined by a minimum of 5 thermistors.

Must be used to detect water ingress.
Minimum detectable water level in the tank is 0.49 inch.
Minimum detectable water level change is 0.0052 inch.

Thermistors and probe must be checked and calibrated in accordance with
manufacturer's instructions.

Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
Asrproduct level is lowered, leak rate in a leaking tank decreases (due to
lower head pressure).  Consistent  testing at  low levels  could  allow a.leak to remain
undetected.
EPA leak detection regulations require testing of the  portion  of the tank system which
routinely contains product.                                           ,
Auto Stik Jr. is used with up to 4 magnetostrictive probes and can handle up to 8 input
sensors.
Auto Stik II is used with up to 16 magnetostrictive probes and can handle up to 64 input
sensors.
EBW, INC.
2814 McCraken Ave.
Muskegon, Ml  49443
Tel: (800)475-5151
                              Evaluator: Ken Wilcox Associates
                              Tel: (816) 443-2494

                              Date of Evaluation: 08/20/93
                                                 65
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                              EBW, INC.
                                                                               Revision Date: April 18,1997
 Certification:

 Leak Threshold:


 Applicability:



 Tank Capacity:


 Waiting Time:



 Test Period:




 Temperature:

 Water Sensor:



 Calibration:


 Comments:
                  Auto-Stik II and Auto-Stik Jr.
                    (Magnetostrictive Probe)
             AUTOMATIC TANK GAUGING SYSTEM

 Leak rate of 0.1 gph with PD=98.3% and PFA=1.7%.

 0.05 gph. A leak is declared if the output of the measurement system equals or exceeds
 this threshold.

 Gasoline, diesel, aviation fuel, fuel oils #4 and #6, and solvents.
 Other liquids with known coefficients of expansion and density may be tested
 after consultation with the manufacturer.

 Maximum of 15,000 gallons.
 Tank must be between 50 and 95% full.

 Minimum of 6 hours between delivery and testing.
 Minimum of 2 hours between dispensing and testing. .
 There must be no dispensing or delivery during waiting time.

 Minimum of 4 hours.
 Test data are acquired and recorded by a computer.
 Leak rate is calculated from average of subsets of all data collected.
 There must be no dispensing or delivery during test.

 Average for product is determined by a minimum of 5 thermistors.

 Must be used to detect water ingress.
 Minimum detectable water level in the tank is 0.49 inch.
 Minimum detectable water level change is 0.0052 inch.

 Thermistors and probe must be checked and calibrated in accordance with
 manufacturer's instructions.

 Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
 lower head  pressure).   Consistent testing at low levels could allow a leak to  remain
 undetected.
 EPA leak detection regulations  require testing of the portion of the  tank system which
routinely contains product.
Auto Stik Jr. is used with up to 4 magnetostrictive probes and can handle up to 8 input
sensors.
Auto Stik II is used with up to 16 magnetostrictive probes and can handle up to 64 input
sensors.
EBW, INC.
2814 McCraken Ave.
Muskegon, Ml 49443
Tel:  (800)475-5151
                             Evaluator: Ken Wilcox Associates
                             Tel: (816) 443-2494

                             Date of Evaluation: 08/20/93
                                                66
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Detector:

Output type:
Sampling frequency:
Operating principle:

Test Results:
                                             EBW, Inc.

                                AUTO-ST1K Discriminating Sensors
                                            LS-5, LS-35

                             LIQUID-PHASE INTERSTITIAL DETECTOR
qualitative
continuous
float switch and product permeability
                                                                              Revision Date: April 18,1997
Float switch
Accuracy (%)
Detection time (sec)
Fall time (sec)
Lower detection limit (in)
Polymer strip
Accuracy (%)
Detection time (min)
Fall time (sec)
Lower detection limit (in)

unleaded
gasoline
100
1.317
100
—7
N/A
<0.014
LS-5
diesel
fuel
100
1.234
100
-60
N/A
<0.014

water
100
1.516
N/R*
N/A*
N/A
N/A
LS-35
unleaded
gasoline
100
1.317
100
-7
N/A
<0.014
diesel
fuel
too
1.234
100
-60
N/A
<0.014
water
100
1.156
N/R
N/A
N/A
N/A.
*See glossary.

Specificity Results:
Activated: unleaded gasoline, diesel fuel, water.
Manufacturer and evaluator claim that sensors will respond to any liquid, except for the polymer strip sensor,
which will not respond to water.

Manufacturer's Specifications:
Operating temperatures for LS-5 are -40 degrees F to 150 degrees F (-40 degrees C to 65.5 degrees C).
Operating temperatures for LS-30A are -40 degrees F to 140 degrees F(-40 degrees C to 60 degrees C).
There is no manufacturer's recommended maintenance schedule.

Comments:
Test procedures used were modified by evaluator from EPA's "Standard Test Procedures for Evaluating
Leak Detection Methods: Liquid-Phase Out-of-Tank Product Detectors," and from EPA's "Standard Test
Procedures for Evaluating Leak Detection Methods: Nonvolumetric Tank Tightness Testing Methods," March
1990.
Polymer sensor can be reset by exposing it to air.
Detector is reusable.
Evaluation also included the LS-10, LS-15, and LS-20 liquid-phase out-of-tank product detectors which are
listed separately.
EBW, INC.
2814 McCraken Ave.
Muskegon, Ml 49443
Tel: (616)755-1671
                      Evaluator: Ken Wilcox Associates
                      Tel: (816) 443-2494

                      Date of Evaluation: 07/05/94
                                                 67
Appearance on this list is not to be constated as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                              EBW, Inc.
                                                                              Revision Date: April 18,1997
 Detector:

 Output type:
 Sampling frequency:
 Operating principle:

 Test Results:
                                 AUTO-STIK Discriminating Sensors
                                          LS-10,LS-15,LS-20

                         LIQUID-PHASE OUT-OF-TANK PRODUCT DETECTOR
qualitative
continuous
float switch and product permeability
                                                         LS-10,LS-15.LS-20
Float Switch
Accuracy (%)
Detection time (sec)
Fall time (sec)
Lower detection limit (in)
Polymer Strip
Accuracy (%)
Detection time (min)
Fall time (sec)
Lower detection limit (in)
unleaded gasoline
100
<1
<1
2.870
100
-7
N/A
<0.014
diesel
100
<1
<1
2.822
100
-60
N/A
<0.014
water
100
<1
<1
2.667
N/R*
N/A*
N/A
N/A
 'See glossary.

 Specificity Results:
 Activated: unleaded gasoline, diesel fuel, and water.
 Manufacturer and evaluator claim sensors will respond to any liquid, except polymer strip will not respond
 to water.

 Manufacturer's specifications:
 Operating temperature: -20 degrees F to 150 degrees F( -28.9 degrees C to 65.5 degrees C).
 There is no manufacturer's recommended maintenance schedule.

 Comments:
 EPA and many states require detection of 1/8 inch (0.32 cm) of product for groundwater monitoring.
 Test procedures used were modified by evaluator from EPA's "Standard Test Procedures for Evaluation Leak
 Detection Methods: Liquid-Phase Out-of-Tank Product Detectors," March 1990, and from EPA's "Standard
 Test Procedures for Evaluating Leak Detection Methods:Nonvolumetric Tank Tightness Testing Methods,"
 March 1990.
 Polymer sensor can be reset by exposing it to air.
 Detector is reusable.
 This evaluation also included the LS-5 and LS-35 interstitial detectors, which are listed separately.
EBW, INC.
2814 McCraken Ave.
Muskegon, Ml 49443
Tel:  (616)755-1671
                     Evaluator: Ken Wilcox Associates
                     Tel: (816) 443-2494

                     Date of Evaluation: 07/05/94
                                                68
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                                 Revision Date: April 18,1997
                                               EBW, Inc.

                                         Liquid Sensor System
                                          LS-3A, LS-30A, LS-7

                               LIQUID-PHASE INTERSTITIAL DETECTOR

Detector:

Output type:                qualitative
Sampling frequency:        continuous
Operating principle:         float switch

Test Results:
                                  LS-3A N.C. (normally closed)             LS-3A N.O. (normally open)
                               unleaded    diesel                  unleaded      diesel
                               gasoline     fuel       water         gasoline       fuel       water
Accuracy {%)                     100        100       100          100          100       100
Detection time (sec)                <1         <1        <1           <1           <1        <1
Fall time (sec)                    <1         <1        <1           <1           <1        <1
Lower detection limit (cm)            2.59        2.36      2.08          2.59          2.39      2.08

                           LS-30A (low level)               LS-30A (high level)        	LS-7	
                       unleaded   diesel               unleaded    diesel
                       gasoline   fuel     water       gasoline    fuel     water
Accuracy (%)             100       100     100        100        100     100
Detection time (min:sec)    <1        <1       <1          <1         <1      <1
Fall time (hnmin:sec)       <1        <1       <1          <1         <1      <1
Lower detection limit (cm)    8.79      8.48     8.15        23.65      23.04   22.78

Specificity Results:
Activated: unleaded gasoline, diesel fuel (except LS-7), water.
Sensors will respond to any liquid which has sufficient depth and density to raise float.

Manufacturer's Specifications:                                      ,
Operating temperatures for LS-3A are -40 degrees F to 180 degrees F (-40 degrees C to 82.2 degrees C).
Operating temperatures for LS-30A are -40 degrees F to 140 degrees F(-40 degrees C to 60 degrees C).
Minimum specific gravity for LS-7A is 0.70.                                         ,
There is no manufacturer's recommended maintenance schedule.

Comments:
Test procedures used were modified by evaluator from EPA's "Standard Test Procedures for Evaluating
Leak Detection Methods: Liquid-Phase Out-of-Tank Product Detectors," March 1990
Detector is reusable.
 EBW, Inc.                                        Evaluator: Ken Wilcox Associates
 2814McCrackenAve.                             Tel: (816) 443-2494
 Muskegon, Ml 49443
 Tel: (616)755-1671                                Date of Evaluation: 04/20/93


                                                   69
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of ttie performance of
 the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.   ,

-------
                                                                               Revision Date: April 18,1997
                                        EFA Technologies, Inc.

                                               LeakNet

                            LARGE DIAMETER PIPELINE LEAK DETECTOR

 Certification:      Leak rate of 3.0 gph at 10 psi with PD = 100% and PFA = 0%.

 Leak Threshold:  2.2 gph.  A leak is declared if the output of the measurement system equals or exceeds
                   this threshold.

 Applicability:      Gasoline, diesel, aviation fuels, fuel oil #4, waste oil, and solvents.

 Specification:     System tests pressurized bulk material transfer pipelines.
                   Suitable for all pressurized steel, plastic, fiberglass, or concrete pipelines.
                   System is used as an equivalent 3 gph line leak detector.
                   Leak detection flow rates are proportional to pressure in pipeline.
                   Testing is conducted while the product is not flowing in the pipeline.
                   Pipeline must be full and under pressure.
                   Gravity feed pipelines under constant static head pressure may be tested with system.

 Pipeline Capacity: Maximum of 116,230 gallons.
                   System tested on 58,115  gallon  pipeline.
                   Use of pipeline test protocol allows methods to be used on pipelines twice the
                   volume of test pipeline. Contact manufacturer prior to using on pipelines exceeding
                   58,115 gallons through 116,230  gallons.

 Waiting Time:     None between delivery and testing.
                   None between dispensing and testing.

 Test Period:       Response time ranges from 2 to 5 minutes.
                   Test data are acquired and recorded by a computer.
                   Calculations are automatically performed by computer.

 System Features:  Permanent installation on pipeline.
                   Automatic testing  of pipeline at least once per hour under static conditions.
                   Continuous operation during flowing  conditions  (however, thresholds are higher  due to
                   hydralic
                   noise in pipeline).
                   Declares leak if current changes in pressure exceed tuning parameters, or if pressure
                   fluctuates in a manner that is characteristic of a leak.
                   Dispensers shutdown, indicator light and alarm activation if leak is declared.

 Calibration:       System must be checked  annually.  Standard electronic field instruments used by the
                   system require normal annual inspection and calibration checks.

 Comments:       Designed to replace a mechanical line leak detector to detect equivalent 3
                   gph releases at 10 psi on  large pipelines at pressures higher than those found at typical
                   service station

 EFA Technologies, Inc.                      Evaluator: Ms. Terri Regan - Naval Facilities Engineering
 116 20th St.                                Service Center
 Sacramento, CA  95814                     Tel: (202)433-5196
Tel: (916) 443-8842                         Date of Evaluation: 09/26/95


                                                 70
Appearance on this list is not to be construed as an endorsement  by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                  Egemin Naamloze Vennootschap
                                                                              Revision Date: April 18,1997
Certification:

Leak Threshold:


Applicability:

Tank Capacity:


Waiting Time:


Test Period:




Temperature:

Water Sensor:



Calibration:


Comments:
                            E'SPI III
                    (Mass Buoyancy Probe)
             AUTOMATIC TANK GAUGING SYSTEM

Leak rate of 0.2 gph with PD=97.9% and PFA=1-1%.

0.075 gph. A leak is declared if the output of the measurement system equals or
exceeds this threshold.

Gasoline, diesel, aviation fuel, and solvents.

Maximum of 15,000 gallons.
Tank must be between 50 and 95% full.

Minimum of 7 hours between delivery and testing.
There must be no dispensing or delivery during waiting time.

Minimum of 5 hours, 30 minutes.
Test data are acquired and recorded by a computer.
Leak rate is calculated from average of subsets of all collected data.
There must be no dispensing or delivery during test.

Average for product is obtained by a single moving quartz crystal temperature sensor.

Must be used to detect water ingress.
Minimum detectable water level in the tank is 0.253 inch.
Minimum detectable change in water level is 0.029 inch.

Temperature sensor and probe must be checked and calibrated in accordance with
manufacturer's instructions.

Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
lower head pressure). Consistent testing at low levels could allow a leak  to remain
undetected.
EPA leak detection regulations require testing of the portion of the  tank system which
routinely contains product.
Egemin Naamloze Vennootschap
Bredabaan 1201 - 2900
Schoten, Belgium
Tel:  011 -32-3-03/645 27 90
                             Evaluator: Midwest Research Institute
                             Tel: (816) 753-7600

                             Date of Evaluation: 12/21/90
                                                71
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:


Applicability:

Tank Capacity:


Waiting Time:


Test Period:




Temperature:

Water Sensor:.



Calibration:


Comments:
                                                           Revision Date: April 18,1997
               Egemin Naamloze Vennootschap

                           E'SPIIV
                    (Mass Buoyancy Probe)
             AUTOMATIC TANK GAUGING SYSTEM

Leak rate of 0.2 gph with PD=97.2% and PFA=0.3%.

0.1 gph.  A leak is declared if the output of the measurement system equals or exceeds
this threshold.

Gasoline, diesel, aviation fuel, fuel oil, and solvents.

Maximum of 15,000 gallons.
Tank must be between 50 and 95% full.

Minimum of 6 hours between delivery and testing.
There must be no dispensing or delivery during waiting time.

Minimum of 2 hours, 15 minutes.
Test data are acquired and recorded by a computer.
Leak rate is calculated from average of subsets of all collected data.
There must be no dispensing or delivery during test.

Average for product is determined by a minimum of 5 thermistors.

Must be used to detect water ingress.
Minimum detectable water level in the tank is 0.253 inch.
Minimum detectable change in water level is 0.029 inch.

Thermistors and probe must be checked and calibrated in accordance with
manufacturer's instructions.

Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
lower head pressure).   Consistent testing at  low levels  could  allow a  leak to remain
undetected.
EPA leak detection regulations require testing of the portion of the tank system which
routinely contains product.
Egemin Naamloze Vennootschap
Bredabaan 1201-2900
Schoten, Belgium
Tel:  011-32-3-03/6452790
                             Evaluator: Midwest Research Institute
                             Tel: (816) 753-7600

                             Date of Evaluation: 12/21/90
                                                72
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:


Applicability:

Specification:


Pipeline Capacity:

Waiting Time:


Test Period:



System Features:
Calibration:
                                                        Revision Date: April 18,1997
            Emco Electronics, Tuthill Corp.

              EECO System LLD (Q0011)

  AUTOMATIC ELECTRONIC  LINE LEAK DETECTOR

Leak rate of 3.0 gph with PD= 100% and PFA = 0%.

2.0 gph. A leak is declared if the output of the measurement system equals or
exceeds this threshold.

Gasoline, diesel, aviation fuel, and fuel oil #4.

System tests pressurized fiberglass and steel pipelines.
Tests are conducted at operating pressure.

Maximum of 67.4 gallons.

None between delivery and testing.
None between dispensing and testing.

Response time is 2 minutes.
Test data are acquired and recorded by a microprocessor.
Calculations are automatically performed by the microprocessor.

Permanent installation on pipeline.
Automatic testing of pipeline.
Preset threshold.
Single  test to determine if pipeline is leaking.
Dispenser shutdown, message display, and alarm activation if leak is declared.

System must be checked annually and calibrated if necessary in accordance with
manufacturer's instructions.
Emco Electronics, Tuthill Corp.
114MacKenan Dr.
Gary, NC 27511
Tel: (800) 342-6125
                         Evaluator: Ken Wilcox Associates
                         Tel: (816) 443-2494

                         Date of Evaluation: 12/31/93
                                                 73
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                               Revision Date: April 18,1997
                                   Emco Electronics, Tuthill Corp.

                                     EECO System LLD (Q0011)

                         AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

Certification:      Leak rate of 0.2 gph with PD= 100% and PFA = 0%.

Leak Threshold:   0.1293 gph. A leak is declared if the output of the measurement system equals or
                  exceeds this threshold.

Applicability:       Gasoline, diesel, aviation fuel, and fuel oil #4.

Specification:      System tests pressurized fiberglass and steel pipelines.
                   Tests are conducted at operating pressure.

Pipeline Capacity:  Maximum of 67.4 gallons.

Waiting Time:      None between delivery and testing.
                   Ranges from 0 to 1 hour, 27 minutes between dispensing and testing.

Test Period:       Minimum of 9 minutes.
                   Test data are acquired and recorded by a microprocessor.
                   Calculations are automatically performed by the microprocessor.

System Features:  Permanent installation on pipeline.
                   Automatic testing of pipeline.
                   Preset threshold.
                   Single test to determine if pipeline is leaking.
                   Dispenser shutdown, message display, and alarm activation if leak is declared.

Calibration:        System must be checked annually and calibrated if necessary in accordance with
                   manufacturer's instructions.
Emco Electronics, Tuthill Corp.                     Evaluator: Ken Wilcox Associates, Inc.
114 MacKenan Dr.                               Tel: (816) 443-2494                    ,
Gary, NO 27511
Tel: (800) 342-6125                              Date of Evaluation: 07/18/94



                                                 74
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
 Certification:
                Ernco Electronics, Tuthill Corp.

                   EECO System LLD (Q0011)

       AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

Leak rate of 0.1 gph with PD = 100% and PFA = 0%
                                                                                 Revision Date: April 18, 1997
 Leak Threshold:    0.0793 gph.  A leak is declared if the output of the measurement system equals or exceeds
                    this threshold.

 Applicability:       Gasoline, diesel, aviation fuel, and fuel oil #4.

 Specification:      System tests pressurized fiberglass and steel pipelines.
                    Tests are conducted at operating pressure.

 Pipeline Capacity:  Maximum of 67.4 gallons.

 Waiting Time:      None between delivery and testing.
                    Ranges from 0 to 2 hours, 48 minutes between dispensing and testing.

 Test Period:        Minimum of 31 minutes.
                    Test data are acquired and recorded by a microprocessor.
                    Calculations are automatically performed by the microprocessor.

 System Features:  Permanent installation on pipeline.
                    Automatic testing of pipeline.
                    Preset threshold.
                    Single test to determine if pipeline is leaking.
                    Dispenser shutdown, message display, and alarm activation if leak is declared.

 Calibration:        System must be checked annually and calibrated if necessary in accordance with
                    manufacturer's instructions.
 Emco Electronics, Tuthill Corp.
 114MacKenan Dr.
 Cary.NC 27511
 Tel: (800) 342-6125
                             Evaluator: Ken Wilcox Associates
                             Tel: (816) 443-2494

                             Date of Evaluation: 12/31/93
                                                  75
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
, the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                               Revision Date: April 18,1997
                                   Emco Electronics, Tuthill Corp.

                                         EECO System LLD
                                        (for Flexible Pipelines)

                         AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

Certification:       Leak rate of 3.0 gph with PD = 100% and PFA = 0%

Leak Threshold:    2.0 gph. A leak is declared if the output of the measurement system equals or exceeds this
                   threshold.

Applicability:       Gasoline, diesel, aviation fuel, and fuel oil #4.

Specification:      System tests flexible pipelines.                                         ;
                   Tests are conducted at operating pressure.

Pipeline Capacity:  Maximum of 49.6 gallons.

Waiting Time:      None between delivery and testing.
                   None between dispensing and testing.

Test Period:       Response time is 11 minutes, 24 seconds.
                   Test data are acquired and recorded by a microprocessor.
                   Calculations are automatically performed by the microprocessor.

System Features:  Permanent installation on pipeline.
                   Automatic testing of pipeline.
                   Preset threshold.
                   Single test to determine if pipeline is leaking.
                   Dispenser shutdown, message display, and alarm activation if leak is declared.

Calibration:        System must be checked annually and calibrated if necessary in accordance with
                   manufacturer's instructions.
Emco Electronics, Tuthill Corp.                     Evaluator: Ken Wilcox Associates
114MacKenanDr.                                Tel: (816) 443-2494
Gary, NC 27511
Tel: (800) 342-6125                               Date of Evaluation: 07/18/94



                                                  76
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed .and operated in accordance with all applicable laws and regulations.

-------
 Certification:
                 Emco Electronics, Tuthill Corp.

                       EECO System LLD
                     (for Flexible Pipelines)

       AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

Leak rate of 0.1 gph with PD = 100% and PFA = 0%
                                                                                 Revision Date: April 18,1997
 Leak Threshold:   0.0793 gph. A leak is declared if the output of the measurement system equals or exceeds
                   this threshold.

 Applicability:      Gasoline, diesel, aviation fuel, and fuel oil #4.

 Specification:     System tests flexible pipelines.
                   Tests are conducted at average pressure of 10 psi.

 Pipeline Capacity: Maximum of 49.6 gallons.

 Waiting Time:     None between delivery and testing.
                   Minimum of 14 minutes between dispensing and testing.

 Test Period:       Minimum of 9 hours.
                   Test data are acquired and recorded by a microprocessor.
                   Calculations are automatically performed by the microprocessor.

 System Features: Permanent installation on  pipeline.
                   Automatic testing of pipeline.
                   Preset threshold.                                      ;
                   Single test to determine if  pipeline is leaking.
                   Dispenser shutdown, message display, and alarm activation if leak is declared.

 Calibration:       System must be checked annually and calibrated if necessary in accordance with
                   manufacturer's instructions.
Emco Electronics, Tuthill Corp.
114MacKenanDr.
Gary, NC 27511
Tel: (800) 342-6125
                             Evaluator: Ken Wilcox Associates
                             Tel: (816) 443-2494

                             Date of Evaluation: 07/18/94
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:


Applicability:


Tank Capacity:


Watting Time:


Test Period:
Temperature:

Water Sensor:



Calibration:


Comments:
                                                              Revision Date: April 18,1997
                  Emco Electronics, Tuthill Corp.

             EECO System TLM/0.2 gph Precision Test
                     (Magnetostrictive Probe)
              AUTOMATIC TANK GAUGING SYSTEM

Leak rate of 0,2 gph with PD = 99.1 % and PFA = 0.9%.

0.1 gph. A leak is declared if the output of the measurement system equals or exceeds
this threshold.

Gasoline, diesel, aviation fuel, fuel oils #4 and #6, waste oil, and solvents.
Other liquids may be tested after consultation with the manufacturer.

Maximum of 15,000 gallons.
Tank must be between 50 and 95% full.

Minimum of 6 hours between delivery and testing.
There must be no dispensing or delivery during waiting time.

Minimum of 1 hour, 54 minutes
Test data are acquired and recorded by a microprocessor.
Microprocessor automatically determines test time based on tank size and product level.
Leak rate is calculated from data determined to be valid by statistical analysis.
There must be no dispensing or delivery during test.

Average for product is determined by a minimum of 5 thermistors.

Must be used to detect water ingress.
Minimum detectable water level in the tank is 0.66 inch.
Minimum detectable change in water level is 0.039 inch.

Thermistors and probe must be checked and calibrated in accordance with
manufacturer's instructions.

Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level isjpwered, leak rate in a leaking tank decreases (due to
lower head pressure).   Consistent testing  at  low levels could allow  a leak  to remain
undetected.                                                          ,
EPA leak detection regulations require testing of the portion of the tank system which routinely
contains product.
Emco Electronics, Tuthill Corp.
114MacKenanDr.
Cary.NC  27511
Tel: (800) 342-6125
                                Evaluator: Ken Wilcox Associates
                                Tel: (816) 443-2494

                                Date of Evaluation: 12/23/93
                                                 78
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                    Emco Electronics, Tuthill Corp.
                                                                                Revision Date: April 18,1997
                               EECO System TLM/0.1 gph Precision Test
                                       (Magnetostrictive Probe)
                                AUTOMATIC TANK GAUGING SYSTEM

 Certification:    Leak rate of 0.1 gph with PD = 99% and PFA = 1%.

 Leak Threshold:
 Applicability:


 Tank Capacity:


 Waiting Time:



 Test Period:
 Temperature:


 Water Sensor:



 Calibration:


 Comments:
 0.05 gph. A leak is declared if the output of the measurement system equals or exceeds
 this threshold.

 Gasoline, diesel, aviation fuel, and fuel oil #4.
 Other liquids may be tested after consultation with the manufacturer.

 Maximum of 15,000 gallons.
 Tank must be between 50 and 95% full.

 Minimum of 6 hours between delivery and testing.
 None between dispensing and testing.
 There must be no delivery during waiting time.

 Minimum of 3 hours, 45 minutes.
 During the evaluation, test duration averaged 3 hours, 45 minutes at 95% full
 and 5 hours, 58 minutes at 50% full.
 Test data are acquired and recorded by a microprocessor.
 Leak rate is calculated from data determined to be valid by statistical analysis.
 There must be no dispensing or delivery during test.

 Average for product is determined by a minimum of 5 resistance temperature
 detectors (RTDs).                                           ,

 Must be used to detect water ingress.
 Minimum detectable water level in the tank is 0.66 inch.
 Minimum detectable change in water level is 0.039 inch.

 RTDs and probe must be checked regularly and calibrated  in accordance
 with manufacturer's instructions.

 Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
 lower head  pressure).  Consistent testing  at low levels could allow a leak  to  remain
undetected.
EPA leak detection regulations require testing of the portion of the tank system which routinely
contains product.
Emco Electronics, Tuthill Corp.
114MacKenan Dr.
Gary, NC  27511
Tel:  (800)342-6125
                               Evaluator: Midwest Research Institute
                               Tel: (816) 753-7600

                               Date of Evaluation: 02/08/94
                                                 79
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations

-------
Certification:

Leak Threshold:


Applicability:


Tank Capacity:


Waiting Time:


Test Period:
Temperature:


Water Sensor:



Calibration:


Comments:
                                                              Revision Date: April 18,1997
                  Emco Electronics, Tuthill Corp.

               EECO System TLM/0.2 gph Quick Test
                     (Magnetostrictive Probe)
              AUTOMATIC TANK GAUGING SYSTEM

Leak rate of 0.2 gph with PD = 95.4% and PFA = 4.6%.

0.1 gph. A leak is declared if the output of the measurement system equals br exceeds
this threshold.

Gasoline, diesel, aviation fuel, fuel oils #4 and #6, waste oil, and solvents.
Other liquids may be tested after consultation with the manufacturer.

Maximum of 15,000 gallons.
Tank must be between 50 and 95% full.

Ranges from 1 to 6 hours between delivery and testing depending on tank conditions.
There must be no dispensing or delivery during waiting time.

Minimum of 53 minutes.
Test data are acquired and recorded by a microprocessor.
Microprocessor automatically determines test time based on tank size and product level.
Leak rate is calculated from data determined to be valid by statistical analysis.
There must be no dispensing or delivery during test.

Average for product is determined by a minimum of 5 resistance temperature
detectors (RTDs).

Must be used to detect water ingress.
Minimum detectable water level in the tank is 0.66 inch.
Minimum detectable change in water level that can be declared is 0.039 inch.

RTDs and probe must be checked and calibrated in accordance with
manufacturer's instructions.

Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank-decreases (due to
lower head pressure).   Consistent testing at low levels could  allow a  leak to  remain
undetected.
EPA leak detection regulations require testing of the portion of the tank system which routinely
contains product.
 Emco Electronics, Tuthill Corp.
 114 MacKenan Dr.
 Cary.NC 27511
 Tel: (800) 342-6125
                                Evaluator: Ken Wilcox Associates
                                Tel: (816) 443-2494

                                Date of Evaluation: 12/23/93
                                                  80
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                    Emco Electronics, Tuthill Corp.
                                                                               Revision Date: April 18, 1997
                                EECO System TLM/0.1 gph Quick Test
                                      (Magnetostrictive Probe)
                                AUTOMATIC TANK GAUGING SYSTEM

 Certification:     Leak rate of 0.1 gph with PD = 96% and PFA = 4%.

 Leak Threshold:
 Applicability:


 Tank Capacity:


 Waiting Time:



 Test Period:
 Temperature:


 Water Sensor:



 Calibration:


 Comments:
 0.05 gph. A leak is declared if the output of the measurement system equals or exceeds
 this threshold.

 Gasoline, diesel, aviation fuel, and fuel oil #4.
 Other liquids may be tested after consultation with the manufacturer.

 Maximum of 15,000 gallons.
 Tank must be between 50 and 95% full.

 Minimum of 6 hours between delivery and testing.
 None between dispensing and testing.
 There must be no delivery during waiting time.

 Minimum of 1 hour, 44 minutes.
 During the evaluation, test duration averaged 2 hours, 46 minutes at 50% full and
 1 hour, 44 minutes at 95% full.
 Leak rate is calculated from data determined to be valid by statistical analysis.
 There must be no dispensing or delivery during test.

 Average for product is determined by a minimum of 5 resistance temperature
 detectors (RTDs).

 Must be used to detect water ingress.
 Minimum detectable water level in the tank is 0.66 inch.
 Minimum detectable change in water level is 0.039 inch.

 RTDs and probe must be checked and calibrated in accordance with
 manufacturer's instructions.

 Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
 lower head  pressure).   Consistent testing at low levels  could allow a leak to  remain
 undetected.
 EPA leak detection regulations require testing of the portion of the tank system which routinely
contains product.
Emco Electronics, Tuthill Corp.
114 MacKenan Dr.
Gary, NC  27511
Tel:  (800)342-6125
                               Evaluator: Midwest Research Institute
                               Tel: (816) 753-7600

                               Date of Evaluation: 02/15/94
                                                 81
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                               Revision Date: April 18,1997
                                   Emco Electronics, Tuthill Corp.


           EECO system, Leak Sensor 11, Leak Sensor Jr. Thermistor and Proximity probes


                              LIQUID-PHASE INTERSTITIAL DETECTOR


Detector:

Output type:                qualitative
Sampling frequency:        continuous
Operating principle:         thermal conductivity, proximity switch


Test Results:                                                                ,   , „     ,
                   	EECO system	   	Leak Sensor II              Leak Sensor Jr.
                    unleaded       synthetic        unle
                    gasoline        gasoline  .       gas<
Accuracy (%)
Detection time (sec)
Fall time (sec)

Lower detection limits (cm)
  Thermistor
  Proximity
Specificity Results:
Activated: unleaded gasoline, synthetic gasoline, n-hexane, diesel fuel, jet-Afuel, toluene, xylene(s), water.


Comments:
EPA and many states require detection of 1/8 inch (0.32 cm) of product for groundwater
monitoring.                                                                   ,
Test procedures used were modified by evaluator from EPA's "Standard Test Procedures for
Evaluating Leak Detection Methods: Liquid-Phase Out-of-Tank Product Detectors," March 1990
and "Standard Test Procedures for Non-Volumetric Tank Tightness Test Methods," March 1990.
Detector is reusable.
Systems alarm if either water or product leaks into interstitial space.
t_h.«^^>r
unleaded
100
<5
manual reset

n)
1.22
0.97
synthetic
gasoline .
100
<5
manual reset

1.12
1.04
unleaded
gasoline
100
<5
manual
reset
1.14
1.12
synthetic
gasoline
100
<5
manual
reset
1.14
1.17
unleaded
gasoline
100
<5
manual
reset
1.24
1.12
synthetic,
gasoline
100
<5
manual reset

1.19
1.17
 Emco Electronics, Tuthill Corp.                     Evaluator: Ken Wilcox Associates
 114 MacKenan Dr.                                Tel: (816) 443-2494
 Gary, NC 27511
 Tel: (800) 342-6125                              Date of Evaluation: 11/09/92



                                                  82
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee Of the performance of
 the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:


Applicability:

Tank Capacity:


Waiting Time:


Test Period:




Temperature:


Water Sensor:



Calibration:


Comments:
                                                              Revision Date: Aprfi 18,1997
                     Engineered Systems, Inc.

                             Image II
                     (Magnetostrictive Probe)
              AUTOMATIC TANK GAUGING SYSTEM

  Leak rate of 0.2 gph with PD = 96.6% and PFA = 3.4%.

  0.1 gph. A leak is declared if the output of the measurement system equals or exceeds
  this threshold.

  Gasoline, diesel, aviation fuel, and solvents.

  Maximum of 15,000 gallons.
  Tank must be minimum 90% full.

  Minimum of 8 hours between delivery and testing.
  There must be no dispensing or delivery during waiting time.

  Minimum of 6 hours.
  Test data are acquired and recorded by a computer.
  Leak rate is calculated from average of subsets of all collected data.
  There must be no dispensing or delivery during test.

=  Average for product is determined by a minimum of 5 resistance temperature
  detectors (RTDs).

  Must be used to detect water ingress.
  Minimum detectable water level in the tank is 0.83 inch.
  Minimum detectable water level change is 0.0116 inch.

  RTDs and probe must be checked and calibrated in accordance with
  manufacturer's instructions.

  Not evaluated using manifold tank systems.
  Tests only portion of tank containing product.
  As product level is lowered, leak rate in a leaking tank decreases (due to
  lower head  pressure).  Consistent testing at low  levels could allow  a leak to remain
  undetected.
  EPA  leak detection regulations require testing of the portion of the tank system which
  routinely contains product.
Engineered Systems Inc.
2001 W. Campus Dr.
Tempe.AZ 85282
Tel: (602)438-1362
                               Evaluator: Ken Wilcox Associates, Inc.
                               Tel: (816) 443-2494

                               Date of Evaluation: 08/20/93
                                                 83
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                              Revision Date: April 18,1997
                                          Entropy Limited

                          Precision Tank Inventory Control System Rev. 90

            STATISTICAL INVENTORY RECONCILIATION TEST METHOD (QUANTITATIVE)
Certification:

Leak Threshold:

Applicability:

Tank Capacity:



Data Requirement:

Comments:
Leak rate of 0.1 gph with PD=99.5% and PFA=<0.5%.

0.05 gph.  A leak is declared when leak rate equals or exceeds this threshold.

Gasoline, diesel, aviation fuel, fuel oil #4.

Maximum of 21,000 gallons for single tanks.
Size limits  using an acceptable protocol for  manifold tank systems have not been
determined.

Minimum of 30 days of product level and flow through data.

Not evaluated for manifolded tank systems using an acceptable protocol.
32% of data sets evaluated were from manifold tank systems.
Of 56 data sets submitted for evaluation, 6 were not analyzed due to unusable data
and none were inconclusive.
Median monthly throughput of tanks evaluated was 52,207 gallons.
Leak rates ranging from 0.0497 to 0.203 gph were used in evaluation.
Data sets evaluated were supplied by evaluator.
Entropy Limited
S. Great Rd.
Lincoln, MA 01773
Tel: (617) 256-8901
                         Evaluator: Simpson, Gumpertz and Heger, Inc.
                         Tel: (617) 643-2000

                         Date of Evaluation: 11/30/93
                                                 84
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                          Entropy Limited

                       > Precision Tank Inventory Control System, Version 90

            STATISTICAL INVENTORY RECONCILIATION TEST METHOD (QUALITATIVE)
                                                                               Revision Date: Apttt 18,1997
Certification:

Leak Threshold:

Applicability:

Tank Capacity:

Data Requirement:

Comments:
Leak rate of 0.1 gph with PD=97.9% and PFA=O%-

0.04 gph.  A leak is declared when leak rate equals or exceeds this threshold.

Gasoline, diesel, aviation fuel, fuel oil #4.

Maximum of 15,000 gallons.

Minimum of 64 days of product level and flow through data.

Not evaluated using data from manifold tank systems.
Of 120 data sets submitted for evaluation, 13 were not evaluated and 16 were
inconclusive.
Median monthly throughput of tanks evaluated was 42,835 gallons.
Data sets evaluated were supplied by evaluator.
Entropy Limited
S. Great Rd.
Lincoln, MA 01773
Tel: (617) 256-8901
                         Evaluator: Midwest Research Institute
                         Tel: (816) 753-7600

                         Date of Evaluation: 04/02/91
                                                 85
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:


Applicability:


Tank Capacity:


Waiting Time:


Test Period:




Temperature:


Water Sensor:



Calibration:


Comments:
                                                             Revision Date: April 18,1997
                     Environment and Safety

                          EASI Level-Tru
                     (Magnetostrictive Probe)
              AUTOMATIC TANK GAUGING SYSTEM

 Leak rate of 0.2 gph with PD=95.4% and PFA=4-6%.

 0.1 gph. A leak is declared if the output of the measurement system equals or exceeds
 this threshold.

 Gasoline, diesel, aviation fuel, fuel oil #4, antifreeze, brake fluid, transmission fluid, and
 solvents.

 Maximum of 15,000 gallons.
 Tank must be between 50 and 95% full.

 Minimum of 4 hours, 6 minutes between delivery and testing.
 There must be no dispensing or delivery during waiting time.

 Minimum of 3 hours, 36 minutes.
 Test data are acquired and recorded by a computer.
 Leak rate is calculated from data collected over the entire range of test period.
 There must be no dispensing or delivery during test.

 Average for product is determined by a minimum of 5 resistance temperature
 detectors (RTDs).

. Must be used to detect water ingress.
 Minimum detectable water level in the tank is 0.896 inch.
 Minimum detectable change in water level is 0.023 inch.

 RTDs and probe must be checked and calibrated in accordance with
 manufacturer's instructions.

 Not evaluated using manifold tank systems.
 Tests only portion of tank containing product.
 As product level is lowered, leak rate in a leaking tank decreases (due to
 lower head pressure).  Consistent testing  at  low levels could allow  a leak to remain
 undetected.
 EPA leak detection  regulations require testing  of the portion of the tank system which
 routinely contains product.
Environment and Safety, Inc.
2075 OToole Ave.
San Jose, CA 95131
Tel: (408)954-9081
                               Evaluaton Midwest Research Institute
                               Tel: (816) 753-7600

                               Date of Evaluation: 04/11/91
                                                  86
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable, laws and regulations.

-------
Detector:

Output type:
Sampling frequency:
Operating principle:

Test Results:
                                 Environmental Fuel Systems, Inc.

                                       Fuel Finder Version IV

                        VAPOR-PHASE OUT-OF-TANK PRODUCT DETECTOR
quantitative
intermittent
adsorption sampling
                                                                             Revision Date: April 16,1337
Accuracy (%) [Avg. Reading]
Bias (%)
Precision (%)
Detection time (min:sec)
Fall time (min:sec)
Lower detection limit (ppm)

* See glossary.

Specificity Results:
Percentages:
benzene
n-butane
n-hexane
isobutane
2-methylpentane
toluene
                  benzene
                  106.8 [1647 ppm]
                  64.5
                  22.3
                  N/A*
                  N/A
                  77
2-methvlbutane
122.7 [1380 ppm]
38.2
53.2
N/A
N/A
116
          147.7
          90.7
          55.7
          51.1
          143.7
          66.5
Environmental Fuel Systems, Inc.
P.O. Box 1899
Bandera, TX 78003
Tel: (800) 375-7747
                      Evaluator: Carnegie Mellon Research Institute
                      Tel: (412) 268-3495

                      Date of Evaluation: 04/20/93
                                                87
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Detector:

Oubputtype:
Sampling frequency:
Operating principle:

Test Results:
                                      FCI Environmental, Inc.

                                Analog Hydrocarbon Probe AHP-100

                        LIQUID-PHASE OUT-OF-TANK PRODUCT DETECTOR
qualitative
continuous
fiber optic chemical sensor
                                                                              Revision Date: April 18,1997
Accuracy (%)
Detection time (min)
Fall time (min)
Lower detection limit (cm)
                  unleaded
                  gasoline
                  100
                  <8
                  <5
                  <0.01
synthetic
gasoline
100
<8
<5
<0.01
Specificity Results:
Activated: unleaded gasoline, synthetic gasoline, n-hexane, diesel fuel, jet-A fuel, tpluene, xylene(s).
                                                                  I

Comments:
EPA and many states require detection of 1/8 inch (0.32 cm) of product for groundwater monitoring.
Detector js reusable.
FCI Environmental, Inc.
1181 Grier Dr., Bldg. B
Las Vegas, NV 89119
Tel: (800) 510-3627
                      Evaluator: Ken Wilcox Associates
                      Tel: (816) 443-2494

                      Date of Evaluation: 01/15/94
                                                 88
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Detector:

Output type:
Sampling frequency:
Operating principle:

Test Results:
                                       FCI Environmental, Inc.

                                 Digital Hydrocarbon Probe DHP-100

                        LIQUID-PHASE OUT-OF-TANK PRODUCT DETECTOR
qualitative
continuous
fiber optic chemical sensor
                                                                               Revision Date: Apri\ 18, A997
Accuracy (%)
Detection time (min)
Fall time (min)
Lower detection limit (cm)
               unleaded
               gasoline
               100
               <8
               <5
               <0.01
synthetic
gasoline
100
<8
<5
<0.01
Specificity Results:
Activated: unleaded gasoline, synthetic gasoline, n-hexane, diesel fuel, jet-A fuel, toluene, xylene(s).

Comments:
EPA and many states require detection of 1/8 inch (0.32 cm) of product for groundwater monitoring.
Detector is reusable.
 FCI Environmental, Inc.
 1181  Grier Dr., Bldg. B
 Las Vegas, NV 89119
 Tel: (800) 510-3627
                      Evaluator: Ken Wilcox Associates
                      Tel: (816) 443-2494

                      Date of Evaluation: 01/15/94
                                                 89
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                                 Revision Date: April 18,1997
                                        FCI Environmental, Inc.


                                  Analog Hydrocarbon Probe AHP-100


                         VAPOR-PHASE OUT-OF-TANK PRODUCT DETECTOR


 Detector:
 Output type:                   quantitative
 Sampling frequency:           continuous
 Operating principle:            fiber optic

 Test Results:
                          	EPA March 1990 protocol	   	Radian June 1990 protocol	

                           xvlene       benzene    2-methvlbutane        unleaded gasoline

 Relative accuracy" (%)          2           35         N/R'                12                   22
 B!as{%)                    1           -23        N/R                 -7                   -2
 Precision (%)                 1           11         N/R                 4                    15
 Detection time (min)           <1          <1         N/R                 <1                   <1
 Fall fime (min)                <1          <1         N/R                 <1                   <1
 Lower Detect. Limit (ppm)       84          519       N/R                 137                  220

 * See glossary.


 Lower detection limit for other fuels (ppm):
           JP-4      JP-8
 diesel'      jet fuel    jet fuel    synthetic fuel         p-xvlene       kerosene         unleaded gasoline
 1.01       3.08      2.22      3.43                2.60          2.18            2.02


 Specificity Results (%) (corrected for sensitivity differences):
                         	EPA March 1990 protocol	         Radian June 1990 protocol
                          benzene                76                     unleaded gasoline      93
                          toluene                 96                     synthetic gasoline      98
                          p-xyiene                101                    JP-4 jet fuel           105
                          synthetic gasoline         100                    n-hexane             N/R
                          trimethylbenzene          107                    xylene           !    103
                          methane                N/R
                          butane                  N/R
                          2-methylbutane           N/R
                          pentane    N/R


 Comments:
Test procedures used were a combination of EPA's "Standard Test Procedures for Evaluation Leak Detection
 Methods: Vapor-Phase Out-of-Tank Product Detectors, "March 1990, and Radian Corporation's draft report
 "Development of Procedures to Assess the Performance of External Leak Detection Devices: Vapor-Phase
ASTM-Formatted Methods," June 6,1990.
FCI Environmental, Inc.                           Evaluator: Ken Wilcox Associates
1181 Grier Dr., Bldg. B                            Tel: (816) 443-2494
Las Vegas, NV 89119
Tel: (800) 510-3627                              Date of Evaluation: 03/07/94 and 12/05/94
                                                   90
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                        FCI Environmental, Inc.

                                  Digital Hydrocarbon Probe DHP-100

                         VAPOR-PHASE OUT-OF-TANK PRODUCT DETECTOR
                                                                                 Revision Date: April 18,1997
Detector:

Output type:
Sampling frequency:
Operating principle:

Test Results:
Relative accuracy* (%)
Bias (%)
Precision (%)
Detection lime (min)
Fall time (min)
Lower Detect. Limit (ppm)

* See glossary.
  quantitative
  continuous
  fiber optic
                               EPA March 1990 protocol
                         xvlene    benzene   2-methvlbutane
                                              Radian June 1990 protocol
0
0
0
45
17
-9
11
280
N/R
N/R
N/R
N/R
N/R
N/R
unleaded gasoline

18
1
9


73
synthetic
gasoline
29
-12
10


118
Specificity Results (%) (corrected for sensitivity differences):

                        	EPA March 1990 protocol	
                         benzene
                         toluene
                         p-xylene
                         synthetic gasoline
                         trimethyibenzene
                         methane
                         butane
                         2-methylbutane
                         pentane
                        89
                        97
                        100
                        92
                        104
                        N/R
                        N/R
                        N/R
                        N/R
                                	Radian June 1990 protocol
                                 unleaded gasoline        101
                                 synthetic gasoline        88
                                 JP-4 jet fuel             109
                                 n-hexane               108
                                 xylene                 N/R
Comments:
Test procedures used were a combination of EPA's "Standard Test Procedures for Evaluation Leak Detection
Methods: Vapor-Phase Out-of-Tank Product Detectors," March 1990, and Radian Corporation's draft report
"Development of Procedures to Assess the Performance of External  Leak Detection Devices: Vapor-Phase
ASTM-Formatted Methods," June 6,1990.
FCI Environmental, Inc.
1181  Grier Dr., Bldg. B
Las Vegas, NV 89119
Tel: (800) 510-3627
                        Evaluator: Ken Wilcox Associates
                        Tel: (816) 443-2494

                        Date of Evaluation: 03/07/94
                                                   91
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                                                               Revision Date: April 18,1997
                                          FDR Services, Inc.
                                  GasPak Vapor Monitoring System

                        VAPOR-PHASE OUT-OF-TANK PRODUCT DETECTOR

 Detector:

 Output type:               quantitative
 Sampling frequency:       intermittent
 Operating principle:        product permeable detector

 Test Results: (averages of multiple concentrations)
103
-1
2
heptane,
3-methvl
102
1
2
hexane
107
2
4
Iso-octane
103
1
2
pentane,
2.4-dimethvl
105
1
3
pentane,
2.3.4-trimethyl
104
1
3
tolu<
104
1
3
Accuracy (%)
BIas(%)
Precision (%)
Lower detection limit
(ppm)               11         11           3,1              1
Specificity (%)         100      100       102      101         101          100           100

Specificity Results: See results above.

Comments:
Test procedures used were modified by evaluatorfrom EPA's "Standard Test Procedures for Evaluating Leak
Detection Methods: Vapor-Phase Out-of-Tank Product Detectors," March 1990.
Detection times were not directly measured. However, evaluator states, "experiential evidence predicts that
the detector response will reach 'alarm' conditions (30% of maximum fresh fuel response) at a distance of 5
meters in slightly over one day."
Each cartridge is used once, then replaced by another.
GasPak is produced and analyzed by Fayette Environmental Services, Inc., with exclusive marketing
and implementation rights assigned to FDR Services, Inc.
FDR Services, Inc.                                  Evaluator: David G. Bray, Ph.D.
P.O. Box 3930                                      University of Missouri - Columbia
Bryan, TX 77805                                    Tel: (573) 882-2439
Tel: (214)506-0588                                  Date of Evaluation: 07/27/94
                                                 92
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                                                              Revision Date: April 18,1997
                                           FE Petro, Inc.

                                  STP-MLD Pipeline Leak Detector

                         AUTOMATIC MECHANICAL LINE LEAK DETECTOR

Certification:      Leak rate of 3.0 gph with PD=100% and PFA=0%.

Leak Threshold:   2.0 gph. A leak is declared if the output of the measurement system equals or exceeds
                   this threshold.

Applicability:      Gasoline, diesel, aviation fuel, fuel oil #4, and some solvents.

Specification:      System tests fiberglass and steel pipelines.
                   Tests are conducted at operating pressure.

Pipeline Capacity:  Maximum of 129.14 gallons.

Waiting Time:      None between delivery and testing.
                   None between dispensing and testing.

Test Period:       Response time is less than 30 seconds.

System Features:  Permanent installation on pipeline.
                   Automatic testing of pipeline.
                   Preset threshold.
                  .Single test to determine if pipeline is leaking.
                   Restricted flow to dispenser if leak is declared.

Calibration:        System must be checked annually and calibrated if necessary in accordance with
                   manufacturer's instructions.
FE Petro, Inc.                                   Evaluator: Ken Wilcox Associates, Inc.
P.O. Box 139                                    Tel: (816) 443-2494
McFarland, Wl 53558                                                                         ,
Tel: (608) 838-8786                              Date of Evaluation: 07/01/92



                                                 93
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:


Applicability:

Specification:
                                                            Revision Date: April 18,1997
                         FE Petro, Inc.

               STP-MLD-D Pipeline Leak Detector

       AUTOMATIC MECHANICAL LINE LEAK DETECTOR

Leak rate of 3.0 gph with PD=100% and PFA=0%.

2.0 gph. A leak is declared if the output of the measurement system equals or exceeds
this threshold.

Diesel

System tests steel and fiberglass pipelines.'
Tests are conducted at operating pressure.
Pipeline Capacity: Maximum for rigid system is 341 gallons.

Waiting Time:     None between delivery and testing.
                   None between dispensing and testing.

Test Period:       Average response time is 1 minute.

System Features:  Permanent installation on pipeline.
                   Automatic testing of pipeline.
                   Preset threshold.
                   Single test to determine if pipeline is leaking.
                   Restricted flow to dispenser if leak is declared.

Calibration:       System must be checked annually and calibrated if necessary in accordance with
                   manufacturer's instructions.
FE Petro, Inc.
P.O. Box 139
McFartand, Wl 53558
Tel: (608) 838-8786
                             Evaluator: Ken Wilcox Associates, Inc.
                             Tel: (816) 443-2494

                             Date of Evaluation: 04/30/94
                                                 94
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:


Applicability:

Specification:
                                                                              Revision Date: April 18,1997
                                           FE Retro, Inc.

                              STP-MLD-E Line (Flexline) Leak Detector
                                       (for Flexible Pipelines)

                         AUTOMATIC MECHANICAL LINE LEAK DETECTOR

                  Leak rate of 3.0 gph with PD=100% and PFA=0%^

                  2.0 gph. A leak is declared if the output of the measurement system equals or exceeds
                  this threshold.

                  Gasoline, diesel, aviation fuel, and some solvents.

                  System tests flexible pipelines.
                  Tests are conducted at operating pressure.
Pipeline Capacity: Maximum of 49.6 gallons.

Waiting Time:
                  None between delivery and testing.
                  None between dispensing and testing.

Test Period:      Average response time is 3 minutes.

System Features: Permanent installation on pipeline.
                  Automatic testing of pipeline.
                  Preset threshold.
                  Single test to determine if pipeline is leaking.
                  Restricted flow to dispenser if leak is declared.

Calibration:      System must be checked annually and calibrated if necessary in accordance with
                  manufacturer's instructions.

Comments:      Enviroflex line with a bulk modulus* of 1,280 was used during evaluation.
                  *See glossary.
 FE Petro, Inc.
 P.O. Box 139
 McFarland, Wl 53558
 Tel: (608) 838-8786
                                                Evaluator: Ken Wilcox Associates, Inc.
                                                Tel: (816) 443-2494

                                                Date of Evaluation: 03/24/94
                                                  95
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
 Certification:
                                       Fluid Containment, Inc.
                                     (formerly O/C Tanks Corp.)

                        Hydrostatic Precision Tank Test for DWT-Type II Tanks

                             DOUBLE WALLED TANK TIGHTNESS TEST

                   Leak rate of 0.1 gph with PD=99.9% and PFA=1.2% without dispensing.
                   Leak rate of 0.1 gph with PD=95% and PFA=5.0% with dispensing.
                                                                               Revision Date: April 18,1997
 Leak Threshold:   0.05 gph without dispensing and 0.07 gph with dispensing. A leak is declared if
                    the output of the measurement system equals or exceeds this threshold.
 Applicability:

 Tank Capacity:



 Waiting Time:



 Test Period:
                   Gasoline, diesel, aviation fuel, and fuel oil #4.

                   Maximum of 30,000 gallons.
                   Tank must be between 0 and 100% full.
                   Maximum tank diameter is 10 feet.

                   Minimum of 24 hours between delivery and testing.
                   Minimum of 3 hours between "topping off" the annular space with liquid and testing.
                   There must be no delivery during waiting time.

                   Minimum of 4 hours.
                   A leak is not declared unless the threshold is exceeded in two tests, separated by at least
                   8  hours  which are  performed  without dispensing  and with  minimal changes in
                   groundwater elevation above bottom of tank as described below.

Other Limitations:  Volume of trapped vapor must not exceed 20 gallons.
                   Change in barometric pressure must be less than 0.04 psia over the 4-hour test
                   period.
                  Annular space must be at least 100% full with either water or antifreeze.
                   If groundwater is above  bottom of tank, and no product is being dispensed during test,
                  total change in groundwater elevation during test must be less than 1.5 inches per hour.
                  If groundwater is below bottom of tank or not changing during test,
                  total change in product level during test must be less than 0.75 inch per hour.
Fluid Containment, Inc.
Route 20, Box 1380
Conroe.TX 77301
Tel: (409) 756-7731
                                            Evaluator: Vista Research
                                            Tel: (415) 966-1171

                                            Date of Evaluation: 05/15/91
                                                96
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:


Applicability:

Tank Capacity:


Waiting Time:


Test Period:




Temperature:

Water Sensor:



Calibration:


Comments:
                                                           Revision Date; Aprfl 18,1997
   Gasboy International (formerly William M. Wilson's Sons)

                       Gasboy TMS 500
                   (Magnetostrictive Probe)
            AUTOMATIC TANK GAUGING SYSTEM

Leak rate of 0.2 gph with PD = 99.91% and PFA = 0.09%.

0.1 gph. A leak is declared if the output of the measurement system equals or exceeds
this threshold.

Gasoline, diesel, aviation fuel, and solvents.                   .

Maximum of 15,000 gallons.
Tank must be between 50 and 95% full.

Minimum of 6 hours between delivery and testing.
There must be no dispensing or delivery during waiting time.

Minimum of 3 hours.
Test data are acquired and recorded by a computer.
Leak rate is calculated from data determined to be valid by statistical analysis.
There must be no dispensing or delivery during test.

Average for product is determined by a minimum of 5 temperature sensors.

Must be used to detect water ingress.
Minimum detectable water level in the tank is 1.04 inches.
Minimum detectable change in water level is 0.011 inch.

Temperature sensors and probe must be checked and calibrated in accordance with
manufacturer's instructions.

Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
lower head pressure).  Consistent testing at low levels could allow a  leak to  remain
undetected.
EPA leak detection regulations  require testing of the portion  of the tank system which
routinely contains product.
System is no longer being manufactured although product support  is still available.
 Gasboy International
 P.O. Box 309
 Lansdale, PA  19446
 Tel:  (215)855-4631
                              Evaluator: Ken Wilcox Associates
                              Tel: (816) 443-2494

                              Date of Evaluation: 05/10/91
                                                 97
 Appearance on Ms list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                   Gilbarco Environmental Products
                                                                               Revision Date: April 18,1997
 Certification:

 Leak Threshold:


 Applicability:

 Specification:



 Pipeline Capacity:

 Waiting Time:



 Test Period:



 System Features:
 Calibration:
       Environmental Management Console (EMC)
      with Line Leak Detector, Series PA02630000501

    AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

  Leak rate of 3.0 gph with PD=100% and PFA=0%.

  1.5 gph. A leak is declared if the output of the measurement system equals or
  exceeds this threshold.                                  .      '

  Gasoline, diesel, aviation fuel, and solvents.

  System tests pressurized fiberglass and steel pipelines.
  Tests are conducted at operating pressure.
  System will not function with a mechanical line leak detector installed in the pipeline.

  Maximum of 128 gallons.

  None between delivery and testing.
  Minimum between dispensing and testing depends on volume of product and
  temperature gradient which is determined by the system's computer.

  Response time is 14 seconds.
  Test data are acquired and recorded by a microprocessor.
  Calculations are automatically performed by the microprocessor.
                                                              i
  Permanent installation on pipeline.
'  Automatic testing of pipeline.
  Preset threshold.
  Single test to determine if pipeline is leaking.
  Dispenser shutdown, message display, and alarm activation if a leak is declared.

  System must be checked annually and calibrated if necessary in accordance with
  manufacturer's instructions.
Gilbarco Environmental Products
7300 W. Friendly Ave.,
Greensboro, NC 27420
Tel: (910) 547-5000
                         Evaluatbr: Midwest Research Institute
                         Tel: (816) 753-7600
                         Rev. by Ken Wilcox Associates, Inc.
                         Tel: (816) 443-2494
                         Date of Evaluation: 09/20/91, Rev. 04/12/93
                                                98
Appearance on this list Is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:
              Gilbarco Environmental Products

         Environmental Management Console (EMC)
       with Line Leak Detector, Series PA02630000501

      AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

Leak rate of 0.2 gph with PD=100% and PFA=0%.
                                                                              Revision Date: April 18,1997
Leak Threshold:   0.1 gph.  A leak is declared if the output of the measurement system equals or exceeds
                   this threshold.
Applicability:

Specification:
Gasoline, diesel, aviation fuel, and solvents.

System tests pressurized fiberglass and steel pipelines.
Tests are conducted at operating pressure.
System will not function with a mechanical line leak detector installed in the pipeline.
Pipeline Capacity:  Maximum of 128 gallons.

Waiting Time:
Test Period:
None between delivery and testing.
Minimum between dispensing and testing depends on volume of
product arid temperature gradient which is determined by the system's computer.

Response time is 6 minutes.
Test data are acquired and recorded by a microprocessor.
Calculations are automatically performed by the microprocessor.
System Features:  Permanent installation on pipeline.
                   Automatic testing of pipeline.
                   Preset threshold.
                   Single test to determine if pipeline is leaking.
                   Dispenser shutdown, message display, and alarm activation if leak is declared.

Calibration:        System must be checked annually and calibrated if necessary in accordance with
                   manufacturer's instructions.
Gilbarco Environmental Products
7300 W. Friendly Ave.,
Greensboro, NC 27420
Tel: (910) 547-5000
                            Evaluator: Midwest Research Institute
                            Tel: (816) 753-7600
                            Rev. by Ken Wilcox Associates, Inc.
                            Tel: (816) 443-2494
                            Date of Evaluation: 09/20/91, Rev. 04/12/93
                                                 99
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:


Applicability:

Specification:
                                                          Revision Date: April 18,1997
              Gilbarco Environmental Products

         Environmental Management Console (EMC)
       with Line Leak Detector, Series PA02630000501

      AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

Leak rate of 0.1 gph with PD=100.0% and PFA=0%.

0.079 gph. A leak is declared if the output of the measurement system equals or
exceeds this threshold.

Gasoline, diesel, aviation fuel, and solvents.

System tests pressurized fiberglass and steel pipelines.
Tests are conducted at operating pressure.
System will not function with a mechanical line leak detector installed in the pipeline.
Pipeline Capacity:  Maximum of 128 gallons.
Waiting Time:
Test Period:
None between delivery and testing.
Minimum between dispensing and testing depends on volume of
product and temperature gradient which is determined by the system's computer.

Response time is 14 minutes.
Test data are acquired and recorded by a microprocessor.
Calculations are automatically performed by the microprocessor.
System Features:  Permanent installation on pipeline.
                   Automatic testing of pipeline.
                   Preset threshold.
                   Single test to determine if pipeline is leaking.
                   Dispenser shutdown, message display, and alarm activation if leak is declared.

Calibration:        System must be checked annually and calibrated if necessary in accordance with
                   manufacturer's instructions.
Gilbarco Environmental Products
7300 W. Friendly Ave.
Greensboro, NC 27420
Tel: (910)547-5000
                            Evaluator: Midwest Research Institute
                            Tel: (816) 753-7600
                            Rev. by Ken Wilcox Associates, Inc.
                            Tel: (816) 443-2494
                            Date of Evaluation: 09/20/91, Rev. 04/12/93
                                                100
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:
               Gilbarco Environmental Products

          Environmental Management Console (EMC)
        with Line Leak Detector, Series PA02630000501
                     (for Flexible Pipelines)

       AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

Leak rate of 3.0 gph with PD=100% and PFA=0%.
                                                                              Revision Date: April 18,1997
Leak Threshold:   1.5 gph. A leak is declared if the output of the measurement system equals or exceeds
                   this threshold.
Applicability:

Specification:
Gasoline, diesel, aviation fuel, and solvents.

System tests pressurized flexible pipelines.
Tests are conducted at operating pressure.
System will not function with a mechanical line leak detector installed in the pipeline.
Pipeline Capacity: Maximum of 158.4 gallons.
Waiting Time:
Test Period:
None between delivery and testing.
Minimum between dispensing and testing depends on volume of
product and temperature gradient which is determined by the system's computer.

Response time is 1 minute.
Test data are acquired and recorded by a microprocessor.
Calculations are automatically performed by the microprocessor.
System Features:  Permanent installation on pipeline.
                   Automatic testing of pipeline.
                   Preset threshold.
                   Single test to determine if pipeline is leaking.
                   Dispenser shutdown, message display, and alarm activation if leak is declared.

Calibration:        System must be checked annually and calibrated if necessary in accordance with
                   manufacturer's instructions.
Gilbarco Environmental Products
7300 W. Friendly Ave.,
Greensboro, NC 27420
Tel: (910) 547-5000
                             Evaluator: Ken Wilcox Associates, Inc.
                             Tel: (816) 443-2494

                             Date of Evaluation: 08/04/93
                                                101
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:
               Gilbarco Environmental Products

          Environmental Management Console (EMC)
        with Line Leak Detector, Series PA02630000501
                    (for Flexible Pipelines)

       AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

Leak rate of 0.2 gph with PD=96% and PFA=4%.
                                                                              Revision Date: April 18,1997
Leak Threshold:  0.1 gph. A leak is declared if the output of the measurement system equals or exceeds
                  this threshold.
Applicability:

Specification:
Gasoline, diesel, aviation fuel, and solvents.

System tests pressurized flexible pipelines.
Tests are conducted at operating pressure.
System will not function with a mechanical line leak detector installed in the pipeline.
Pipeline Capacity: Maximum of 158.4 gallons.
Waiting Time:
Test Period:
None between delivery and testing.
Minimum between dispensing and testing depends on volume of
product and temperature gradient which is determined by the system's computer.

Response time ranges from 45 minutes to 8 hours, 51 minutes.
Test data are acquired and recorded by a microprocessor.
Calculations are automatically performed by the microprocessor.
System Features: Permanent installation on pipeline.
                  Automatic testing of pipeline.
                  Preset threshold.
                  Single test to determine if pipeline is leaking.
                  Dispenser shutdown, message display, and alarm activation if leak is declared.

Calibration:       System must be checked annually and calibrated if necessary in accordance with
                  manufacturer's instructions.
Gilbarco Environmental Products
7300 W. Friendly Ave.,
Greensboro, NC 27420
Tel: (910) 547-5000
                             Evaluator: Ken Wilcox Associates, Inc.
                             Tel: (816) 443-2494

                             Date of Evaluation: 08/04/93
                                                102
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                  Gilbarco Environmental Products
                                                                               Revision Date: April 18, 1997
 Certification:

 Leak Threshold:


 Applicability:

 Specification:



 Pipeline Capacity:

 Waiting Time:



 Test Period:



 System Features:
Calibration:
          Environmental Management Console (EMC)
        with Line Leak Detector, Series PA02630000501
                    (for Flexible Pipelines)

      AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

Leak rate of 0,1 gph with PD=100% and PFA=0%.

0.079 gph. A leak is declared if the output of the measurement system equals or
exceeds this threshold.

Gasoline, diesel, aviation fuel, and solvents.

System tests pressurized flexible pipelines.
Tests are conducted at operating pressure.
System will not function with a mechanical line leak detector installed in the pipeline.

Maximum of 158.4 gallons.

None between delivery and testing.
Minimum between dispensing and testing depends on volume of
product and temperature gradient which is determined by the system's computer.
                                                                     •s-
Response time ranges from 1 hour, 12 minutes to 12 hours, 54 minutes.
Test data are acquired and recorded by a microprocessor.
Calculations are automatically performed by the microprocessor.

Permanent installation on pipeline.
Automatic testing of pipeline.
Preset threshold.
Single test to determine if pipeline is leaking.
Dispenser shutdown, message display, and alarm activation if leak is declared.

System  must be checked annually and calibrated if necessary in accordance with
manufacturer's instructions.
Gilbarco Environmental Products
7300 W. Friendly Ave.,
Greensboro, NC 27420
Tel: (910)547-5000
                            Evaluator: Ken Wilcox Associates, Inc.
                            Tel: (816) 443-2494

                            Date of Evaluation: 08/04/93
                                                103
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                 Gilbarco Environmental Products
                                                                             Revision Date: April 18,1997
            EMC




Certification:

Leak Threshold:


Applicability:

Tank Capacity:


Waiting Time:


Test Period:




Temperature:

Water Sensor:



Calibration:


Comments:
            EMC Environmental Management Console
Basic Monitoring System Tank Monitor 2,3,2.1, and 3.1  PAO238000XXXX
                       (Capacitance Probe) .

              AUTOMATIC TANK GAUGING SYSTEM

   Leak rate of 0.2 gph with PD=99% and PFA=1 %.

   0.1 gph. A leak is declared if the output of the measurement system equals or exceeds
   this threshold.

   Gasoline, diesel, aviation fuel, and solvents.

   Maximum of 15,000 gallons.
   Tank must be between 50 and 95% full.

   Minimum of 8 hours, 18 minutes between delivery and testing.
   There is no dispensing or delivery during waiting time.

   Minimum of 5 hours.
   Test data are acquired and recorded by the system's computer.
   Leak rate is calculated from the difference between the first and last data collected.
   There must be no dispensing or delivery during test.

   Average for product is obtained by a temperature averaging probe.

   Must be used to detect water ingress.
   Minimum detectable water level in the tank is 1.40 inches.
   Minimum detectable water level change is 0.040 inch.

   Temperature averaging probe must be calibrated in accordance with
   manufacturer's instructions.

   Not evaluated using manifold tank systems.
   Tests only portion of tank containing product.
   As product level is lowered, leak rate in a leaking tank decreases (due to
.   lower head  pressure).  Consistent testing at low levels could allow a leak to  remain
   undetected.
   EPA  leak detection regulations  require testing of the portion  of the tank  system which
   routinely contains product.
   Capacitance probes do not work with oxygenated fuels.
Gilbarco Environmental Products
7300 W. Friendly Ave.
Greensboro, NC 27420
Tel: (910)547-5000
                               Evaluator: Midwest Research Institute
                               Tel: (816) 753-7600

                               Date of Evaluation: 05/14/93
                                                104
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                  Gilbarco Environmental Products
                                                                              Revision Date: April 18, 1997
 Certification:

 Leak Threshold:


 Applicability:

 Tank Capacity:


 Waiting Time:


 Test Period:




 Temperature:

 Water Sensor:



 Calibration:


 Comments:
             EMC Environmental Management Console
EMC Basic Monitoring System Tank Monitor 2.1,3.1, PAO264XXXOOOO
                       (Capacitance Probe)

              AUTOMATIC TANK GAUGING SYSTEM

 Leak rate of 0.2 gph with PD=99% and PFA=0.2%.

 0.126 gph.  A leak is declared if the output of the measurement system equals or exceeds
 this threshold.

 Gasoline, diesel, aviation fuel, and solvents.

 Maximum of 15,000 gallons.
 Tank must be between 50 and 95% full.

 Minimum of 8 hours, 18 minutes between delivery and testing.
 There must be no dispensing or delivery during waiting time.

 Minimum of 2 hours.
 Test data are acquired and recorded by the system's computer.
 Leak rate is calculated from the difference between the first and last data collected.
 There must be no dispensing or delivery during test.

 Average for product is determined by a minimum of 5 thermistors.

 Must be used to detect water ingress.
 Minimum detectable water level in the tank is 1.52 inches.
 Minimum detectable change in water level is 0.027 inch.

 Thermistors and probe must be calibrated in accordance with
 manufacturer's instructions.

 Not evaluated using manifold tank systems.
 Tests only portion of tank containing product.
 As product level is lowered, leak rate in a leaking tank decreases (due to
 lower head pressure).   Consistent  testing  at low  levels could allow a leak  to  remain
 undetected.
 EPA leak detection  regulations require testing of the portion of the  tank system which
 routinely contains product.
 Capacitance probes do not work with oxygenated fuels.
Gilbarco Environmental Products
7300 W. Friendly Ave.
Greensboro, NC 27420
Tel: (910)547-5000
                              Evaluator: Midwest Research Institute
                              Tel: (816) 753-7600

                              Date of Evaluation: 05/14/93
                                               105
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                 Gilbarco Environmental Products
                                                                             Revision Date: April 18,1997
Certification:

Leak Threshold:


Applicability:

Tank Capacity:


Waiting Time:



Test Period:




Temperature:

Water Sensor:



Calibration:


Comments:
             EMC Environmental Management Console
EMC Basic Monitoring System Tank Monitor 2.1,3.1, PAO264XXXOOOO
                        (Capacitance Probe)

               AUTOMATIC TANK GAUGING SYSTEM

 Leak rate of 0.1 gph with PD=99% and PFA=0.1%.

 0.071 gph. A leak is declared if the output of the measurement system equals or exceeds
 this threshold.

 Gasoline, diesel, aviation fuel, and solvents.

 Maximum of 15,000 gallons.
 Tank must be minimum 95% full.

 Minimum of 8 hours, 15 minutes between delivery and testing.
 Minimum of 30 minutes between dispensing and testing.
 There must be no dispensing or delivery during waiting time.

 Minimum of 2 hours.
 Test data are acquired and recorded by the system's computer.
 Leak rate is calculated from the difference between the first and last data collected.
 There must be no dispensing or delivery during test.

 Average for product is determined by a minimum of 5 thermistors.

 Must be used to detect water ingress.
 Minimum detectable water level in the tank is 1.52 inches.
 Minimum detectable water level change is 0.027 inch.

 Thermistors and probe must be calibrated in accordance with
 manufacturer's instructions.

 Not evaluated using manifold tank systems.
 Tests only portion  of tank containing product.
 As product level is  lowered,  leak rate in a leaking tank decreases (due to
 lower head  pressure).   Consistent testing at low  levels  could  allow a  leak to remain
 undetected.
 EPA leak detection regulations require testing of the portion of the tank system which routinely
 contains product.
 Capacitance probes do not work with oxygenated fuels.
Gilbarco Environmental Products
7300 W. Friendly Ave.
Greensboro, NC 27420
Tel: (910)547-5000
                                Evaluator: Midwest Research Institute
                                Tel: (816) 753-7600

                                Date of Evaluation: 05/14/93
                                                106
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                  Gilbarco Environmental Products
                                                                              Revision Date: April 18,1997
 Certification:

 Leak Threshold:


 Applicability:

 Tank Capacity:


 Waiting Time:


 Test Period:




 Temperature:

 Water Sensor:



 Calibration:


 Comments:
             EMC Environmental Management Console
EMC Basic Monitoring System Tank Monitor 2.1,3.1, PAO265XXXOOOO
                      (Magnetostrictive Probe)

               AUTOMATIC TANK GAUGING SYSTEM

   Leak rate of 0.2 gph with PD=99% and PFA=0.1 %.

   0.093 gph. A leak is declared if the output of the measurement system equals or
   exceeds this threshold.

   Gasoline, diesel, aviation fuel, and solvents.

   Maximum of 15,000 gallons.
  Tank must be between 50 and 95% full.

   Minimum of 8 hours, 18 minutes between delivery and testing.
  There must be no dispensing or delivery during waiting time.

  Minimum of 2 hours.
  Test data are acquired and recorded by the system's computer.
  Leak rate is calculated from the difference between the first and last data collected.
  There must be no dispensing or delivery during test.

  Average for product is determined by a minimum of 5 thermistors.

  Must be used to detect water ingress.
  Minimum detectable water level in the tank is 0.544 inch.
  Minimum detectable change in water level is 0.027 inch.

  Thermistors and probe must be calibrated in accordance with
  manufacturer's instructions.

  Not evaluated using manifold tank systems.
  Tests only portion of tank containing product.
  As product level is lowered, leak  rate in a leaking tank decreases (due to
  lower head pressure).  Consistent testing at low levels could allow a leak to  remain
  undetected.
  EPA leak detection regulations  require testing of the portion  of the tank  system which
  routinely contains product.
Gilbarco Environmental Products
7300 W. Friendly Ave.
Greensboro, NC 27420
Tel:  (910)547-5000
                              Evaluator: Midwest Research Institute
                              Tel: (816) 753-7600

                              Date of Evaluation: 05/14/93
                                                107
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                 Gilbarco Environmental Products
                                                                             Revision Date: April 18,1997
Certification:

Leak Threshold:


Applicability:


Tank Capacity:


Waiting Time:



Test Period:




Temperature:

Water Sensor:



Calibration:


Comments:
             EMC Environmental Management Console
EMC Basic Monitoring System Tank Monitor 2.1,3.1, PAO265XXXOOOO
                      (Magnetostrictive Probe)

               AUTOMATIC TANK GAUGING SYSTEM

 Leak rate of 0.1 gph with PD=99% and PFA=1%.

 0.071 gph. A leak is declared if the output of the measurement system equals or exceeds
 this threshold.

 Gasoline, diesel, aviation fuel, and solvents.  Other liquids may be tested after consultation
 with the manufacturer.

 Maximum of 15,000 gallons.
 Tank must be minimum 95% full.

 Minimum of 8 hours, 15 minutes between delivery and testing.
 Minimum of 30 minutes between dispensing and testing.
 There must be no dispensing or delivery during waiting time.

 Minimum of 3 hours.
 Test data are acquired and recorded by the system's computer.
 Leak rate is calculated from the difference between the first and last data collected.
 There must be no dispensing or delivery during test.
 Average for product is determined by a minimum of 5 thermistors.

 Must be used to detect water ingress.
 Minimum detectable water level in the tank is 0.544 inch.
 Minimum detectable change in water level is 0.027 inch.

 Thermistors and probe must be calibrated in accordance with
 manufacturer's instructions.

 Not evaluated using manifold tank systems.
 Tests only portion of tank containing product.
 As product level is lowered, leak rate in a leaking tank decreases (due to
 lower head  pressure).   Consistent  testing  at  low  levels could  allow a leak  to  remain
 undetected.
 EPA leak detection regulations require testing of the portion of the tank system which routinely
 contains product.
 Gilbarco Environmental Products
 7300 W. Friendly Ave.
 Greensboro, NO 27420
 Tel: (910)547-5000
                                Evaluaton Midwest Research Institute
                                Tel: (816) 753-7600

                                Date of Evaluation: 03/14/95
                                                108
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 tha method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                  Gilbarco Environmental Products
                                                                               Revision Date: April 18,1997
                                          PA02590XXXOOO
                              LIQUID-PHASE INTERSTITIAL DETECTOR
Detector:

Output type:
Sampling frequency:
Operating principle:

Test Results: *
qualitative
continuous
float switch
Accuracy (%)
Response time (min)
Recovery time (min)
Product activation height (cm)
Lower detection limit (cm)
      unleaded
      gasoline
      100
      3.66
      <1
      1.28
      1.84
synthetic
gasoline
100
3.45
<1
1.27
1.65
*At a flow rate of 0.19 gal/hr in 7.6 cm diameter test chamber.

Specificity Results:
Activated: diesel fuel, synthetic fuel, heating oil #2, water.

Comments:
EPA and many states require detection of 1/8 inch (0.32 cm) of product for groundwater monitoring.
Test procedures used were Carnegie Mellon Research Institute's "Test Procedures for Third Party
Evaluation of Leak Detection Methods: Point Sensor Liquid Contact Leak Detection Systems":
Final Report - November 11,1991.
Detector is reusable.
Gilbarco Environmental Products
7300 W. Friendly Ave.
Greensboro, NC 27420
Tel: (910) 547-5000
                     Evaluator: Carnegie Mellon Research Institute
                     Tel: (412) 268-3495

                     Date of Evaluation: 07/17/92
                                                109
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Detector:

Output type:
Sampling frequency:
Operating principle:

Test Results:
                                 Gilbarco Environmental Products

                                          PA02591144000

                             LIQUID-PHASE INTERSTITIAL DETECTOR
qualitative
continuous
float switch
                                                                              Revision Date: April 18,1997
Accuracy (%)
Response time (min)
Recovery time (min)
Product activation height (cm)
Lower detection limit (cm)
                  unleaded
                  gasoline
                  100
                  6.00
                  <1
                  3.67
                  4.05
synthetic
gasoline
100
6.51
<1
3.62
4.17
Specificity Results:
Activated: diesel fuel, synthetic fuel, heating oil #2, water.

Comments:
EPA and many states require detection of 1/8 inch (0.32 cm) of product for groundwater monitoring.
Test procedures used were Carnegie Mellon Research Institute's "Test Procedures for Third Party
Evaluation of Leak Detection Methods: Point Sensor Liquid Contact Leak Detection Systems":
Final Report - November 11,1991.
Detector is reusable.
Gilbarco Environmental Products
7300 W. Friendly Ave.
Greensboro, NC 27420
Tel: (910) 547-5000
                      Evaluator: Carnegie Mellon Research Institute
                      Tel: (412) 268-3495

                      Date of Evaluation: 07/17/92
                                                110
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
tha method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                   Gilbarco Environmental Products
                                                                               Revision Date: April 18,1997
 Detector:

 Output type:
 Sampling frequency:
 Operating principle:

 Test Results:
                                           PA02592000000
                              LIQUID-PHASE INTERSTITIAL DETECTOR
qualitative
continuous
float switch
 Accuracy (%)
 Response time (min)
 Recovery time (min)
 Product activation height (cm)
 Lower detection limit (cm)
                     unleaded
                     gasoline
                     100
                     8.19
                     <1
                     4.12
                     4.67
synthetic
gasoline
100
B.49
<1
3.95
4.36
 Specificity Results:
 Activated: diesel fuel, synthetic fuel, heating oil #2, water.

 Comments:
 EPA and many states require detection of 1/8 inch (0.32 cm) of product for groundwater monitoring.
 Test procedures used were Carnegie Mellon Research Institute's Test Procedures for Third Party
 Evaluation of Leak Detection Methods: Point Sensor Liquid Contact Leak Detection Systems":
 Final Report r November 11,1991.
 Detector is reusable.
Gilbarco Environmental Products
7300 W. Friendly Ave.
Greensboro, NC 27420
Tel: (910) 547-5000
                     Evaluator: Carnegie Mellon Research Institute
                     Tel: (412) 268-3495

                     Date of Evaluation: 07/17/92
                                                111
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                             Revision Date: April 18,1997
Detector:

Output type:
Sampling frequency:
Operating principle:

Test Results:
                                 Gilbarco Environmental Products

                            Environmental Management Console (EMC)
                            Groundwater Sensor, series PA02700XX0001

                        LIQUID-PHASE OUT-OF-TANK PRODUCT DETECTOR
qualitative
continuous
electrical conductivity
Accuracy (%)
Detection time (min:sec)
Fall time (min:sec)
Lower detection limit (cm)
                   unleaded
                   gasoline
                   100
                   08:55
                   54:50
                   0.02
synthetic
gasoline
100
06:18
26:02
0.02
Specificity Results:
Activated: unleaded gasoline, synthetic gasoline, n-hexane, diesel fuel, jet-A fuel, toluene, xylene(s).


Sensor must be checked annually for operability or in accordance with manufacturer's instructions and
calibrated/replaced if necessary.


EPA and many states require detection of 1/8 inch (0.32 cm) of product for groundwater monitoring.
Detector is reusable.
 Gilbarco Environmental Products
 7300 W. Friendly Ave.,
 Greensboro, NC 27420
 Tel: (910) 547-5000
                       Evaluator: Carnegie Mellon Research Institute
                       Tel: (412) 268-3495

                       Date of Evaluation: 11720/91
                                                 112
 ADoaarance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 tnarnethod or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
 Detector:

 Output type:
 Sampling frequency:
 Operating principle:

 Test Results:
                                  Gilbarco Environmental Products

                                           PA02660000000

                         VAPOR-PHASE OUT-OF-TANK PRODUCT DETECTOR
qualitative
continuous
adsistor
                                                                               Revision Date: April 18,1997
 Accuracy (%)
 Detection time (min:sec)
 Fall time (min:sec)
 Lower detection limit (ppm)

 *See glossary.
              unleaded
              gasoline
              100
              7:46
              2:38
              500
synthetic
gasoline
0
N/A*
N/A
>1000
JP-4
jet fuel
100
17:01
3:05
500
 Specificity Results:
 Activated: unleaded gasoline, JP-4 jet fuel.
 Not activated: synthetic gasoline, n-hexane, toluene, xylene(s).

 Comments:
 Test procedures used were Radian Corporation's draft report "Development of Procedures to
 Assess the Performance of External Leak Detection Devices: Vapor-Phase ASTM-Formatted Methods "
 June 29,1990.
Gilbarco Environmental Products
7300 W. Friendly Ave.
Greensboro, NC 27420
Tel: (910) 547-5000
                     Evaluaton Carnegie Mellon Research Institute
                     Tel: (412) 268-3495

                     Date of Evaluation: 07/24/92
                                                113
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                              Revision Date: April 18,1997
                                             Hasstech

                                   LineTite Pipeline Leak Monitor

                         AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

Certification:       Leak rate of 3.0 gph with PD=100% and PFA=0%.

Leak Threshold:   2.0 gph. A leak is declared if the output of the measurement system equals or exceeds
                   this threshold.

Applicability:       Gasoline, diesel, and aviation fuel.

Specification:      System tests fiberglass and steel pipelines.
                   Tests are conducted at operating pressure.
                   System will not function with a mechanical line leak detector installed on the pipeline.

Pipeline Capacity: Maximum of 341 gallons.

Waiting Time:      None between delivery and testing.
                   None between dispensing and testing.

Test Period:       Ranges from 1 to 26 minutes.
                   Test data are acquired and recorded by a permanently installed microprocessor.
                   Calculations are automatically performed by the microprocessor.

System Features:  Permanent installation on pipeline.
                   Automatic testing of pipeline.
                   Preset threshold.
                   Single test to determine if pipeline is leaking.
                   Dispenser shutdown,  message display, and alarm  activation if leak is declared.

Calibration:       System must be checked annually and calibrated if necessary in accordance with
                   manufacturer's instructions.
 Hasstech                                       Evaluator: Ken Wilcox Associates
 6985 Flanders Dr.         .                      Tel: (816)443-2494
 San Diego, CA 92121
 Tel: (619) 457-5880                             Dates of Evaluation: 10/15/91 and 04/10/94



                                                 114
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                               Revision Date: April 18,1997
                                              Hasstech                •    .    .

                                    LineTite Pipeline Leak Monitor

                          AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

 Certification:       Leak rate of 0.1 gph with PD=100% and PFA=0%.

 Leak Threshold:    0.062 gph. A leak is declared if the output of the measurement system equals or
                    exceeds this threshold.

 Applicability:       Gasoline, diesel, and aviation fuel.

 Specification:      System tests fiberglass and steel pipelines.
                    Tests are conducted at operating pressure.
                    System will not function with a mechanical line leak detector installed in the pipeline.

 Pipeline Capacity:  Maximum of 341 gallons.

 Waiting Time:      None between delivery and testing.
                    None between dispensing and testing.

 Test Period:        Ranges from 1 hour, 30 minutes to 12 hours, 30 minutes.
                    Test data are acquired and recorded by a permanently installed microprocessor.
                    Calculations are automatically performed by the microprocessor.

 System Features:   Permanent installation on pipeline.
                    Automatic testing of pipeline.
                    Preset threshold.
                    Single test to determine if pipeline is leaking.
                    Dispenser shutdown, message display, and alarm activation if leak is declared.

 Calibration:        System must be checked annually and calibrated if necessary in accordance with
                    manufacturer's instructions.
Hasstech                                       Evaluator: Ken Wilcox Associates
6985 Flanders Dr.                                Tel: (816) 443-2494
San Diego, CA 92121
Tel: (619) 457-5880                              Dates of Evaluation: 10/15/91 and 04/10/94
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                              Revision Date: April 18,1997
                                             Hasstech

                                   LineTite Pipeline Leak Monitor
                                       (for Flexible Pipelines)

                         AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

Certification:       Leak rate of 3.0 gph with PD=100% and PFA=0%.

Leak Threshold:    2.0 gph. A leak is declared if the output of the measurement system equals or exceeds
                    this threshold.

Applicability:       Gasoline, diesel, and aviation fuel.

Specification:       System tests flexible pipelines.
                    Tests are conducted at operating pressure.
                    System will not function with a mechanical line leak detector installed on the pipeline.

Pipeline Capacity:  Maximum of 49.6 gallons.

Waiting Time:       None between delivery and testing.
                    None between dispensing and testing.

Test Period:        Ranges from 1 to 6 minutes.
                    Test data are acquired and recorded by a permanently installed microprocessor.
                    Calculations are automatically performed by the microprocessor.

System Features:   Permanent installation on pipeline.
                    Automatic testing of pipeline.
                    Preset threshold.
                    Single test to determine if pipeline is leaking.
                    Dispenser shutdown, message display, and alarm activation if leak is declared.

Calibration:        System must be checked annually and calibrated if necessary in accordance with
                    manufacturer's instructions.
 Hasstech                                        Evaluator: Ken Wilcox Associates
 6985 Flanders Dr.                                Tel: (816) 443-2494
 San Diego, CA 92121
 Tel: (619) 457-5880                              Dates of Evaluation: 10/15/91 and 04/10/94




 Appearance on this list Is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                                Revision Date: April 18,1997
                                              Hasstech

                                    LineTite Pipeline Leak Monitor
                                        (for Flexible Pipelines)

                          AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

 Certification:       Leak rate of 0.1 gph with PD=100%and PFA=0%.

 Leak Threshold:    0.062 gph. A leak is declared if the output of the measurement system equals or
                    exceeds this threshold.

 Applicability:       Gasoline, diesel, and aviation fuel.

 Specification:      System tests flexible pipelines.
                    Tests are conducted at operating pressure.
                    System will not function with a mechanical line leak detector installed in the pipeline.

 Pipeline Capacity:  Maximum of. 49.6 gallons.

 Waiting Time:      None between delivery and testing.
                    None between dispensing and testing.

 Test Period:        Ranges from 2 hours, 18 minutes to 5 hours.
                    Test data are acquired and recorded by a permanently installed microprocessor.
                    Calculations are automatically performed by the microprocessor.

 System Features:   Permanent installation on pipeline.
                    Automatic testing of pipeline.
                    Preset threshold.
                    Single test to determine if pipeline is leaking.
                    Dispenser shutdown, message display, and alarm activation if leak is declared.

 Calibration:        System must be checked annually and calibrated if necessary in accordance with
                    manufacturer's instructions.
Hasstech                                       Evaluator: Ken Wilcox Associates
6985 Flanders Dr.                                Tel: (816) 443-2494
San Diego, CA 92121
Tel: (619) 457-5880                              Dates of Evaluation: 10/15/91 and 04/10/94
                                                 117
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                              Hasstech
                                                                               Revision Date: April 18,1997
Certification:

Leak Threshold:


Applicability:


Tank Capacity:


Waiting Time:



Test Period:




Temperature:

Water Sensor:



Calibration:


Comments:
                Tank Compliance Center, Model 700
                (7100 Series Magnetostrictive Probe)

               AUTOMATIC TANK GAUGING SYSTEM

Leak rate of 0.2 gph with Po=99.9% and PFA=0.1 %.

0.1 gph.  A leak is declared if the output of the measurement system equals or exceeds
this threshold.

Gasoline, diesel, aviation fuel, fuel oil #4, waste oil, solvents and other substances with a
specific gravity >0.6 and a viscosity <1500 cp.

Maximum of 15,000 gallons.
Tank must be between 50 and 95% full.

Minimum of 2 hours between delivery and testing.
Minimum of 2 hours between dispensing and testing.
There must be no delivery during waiting time.

Minimum of 2 hours.
Test data are acquired and recorded by a computer.
Leak rate is calculated from data determined to be valid by statistical analysis.
There must be no dispensing or delivery during test.

Average for product is determined by a minimum of 5 thermistors.

Must be used to detect water ingress.
Minimum detectable water level in the tank is 0.186 inch.
Minimum detectable change in water level is 0.0048 inch.

Thermistors and probe must be checked and calibrated in accordance with manufacturer's
instructions.

Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
lower head pressure).   Consistent  testing  at  low levels could allow a  leak to  remain
undetected.
EPA leak detection regulations require testing of the portion of the tank system which routinely
contains  product.
Hasstech
6985 Flanders Dr.
San Diego, CA 92121
Tel: (619) 457-5880
                               Evaluator: Ken Wilcox Associates
                               Tel: (816) 443-2494

                               Date of Evaluation: 03/14/95
                                                 118
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                              Hasstech
                                                                                Revision Date-. Aptfl \%, 139T
 Certification:

 Leak Threshold:


 Applicability:


 Tank Capacity:


 Waiting Time:



 Test Period:




 Temperature:

 Water Sensor:



 Calibration:


 Comments:
                Tank Compliance Center, Model 700
                (7100 Series Magnetostrictive Probe)

               AUTOMATIC TANK GAUGING SYSTEM

Leak rate of 0.1 gph with PD=99.6% and PFA=0.4%.

0.05 gph. A leak is declared if the output of the measurement system equals or exceeds
this threshold.

Gasoline, diesel, aviation fuel, fuel oil #4, waste oil, solvents and other substances with a
specific gravity >0.6 and a viscosity <1500 cp.

Maximum of 15,000 gallons.
Tank must be between 50 and 95% full.

Minimum of 2 hours between delivery and testing.
Minimum of 2 hours between dispensing and testing.
There must be no delivery during waiting time.

Minimum of 6 hours.
Test data are acquired and recorded by a computer.
Leak rate is calculated from data determined to be valid by statistical analysis.
There must be no dispensing or delivery during test.

Average for product is determined by a minimum of 5 thermistors.

Must be used to detect water ingress.
Minimum detectable water level in the tank is 0.1860 inch.
Minimum detectable change in water level is 0.0048 inch.

Thermistors and probe must be checked and calibrated in accordance with manufacturer's
instructions.

Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
lower head  pressure).  Consistent testing  at  low  levels could allow a  leak to remain
undetected.
EPA leak detection  regulations require testing of the portion of the tank system which routinely
contains product.
Hasstech
6985 Flanders Dr.
San Diego, CA 92121
Tel: (619) 457-5880
                               Evaluator: Ken Wilcox Associates
                               Tel: (816) 443-2494

                               Date of Evaluation: 03/14/95
                                                 119
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
 Certification:

 Leak Threshold:


 Applicability:

 Specification:
                                                            Revision Date: April 18,1997
                           Hasstech

                            AcuRite

                LINE TIGHTNESS TEST METHOD

Leak rate of 0.1 gph with PD=100% and PFA=0%.

0.01 gph. A leak is declared if the output of the measurement system equals or exceeds
this threshold.

Gasoline, diesel, aviation fuel, and fuel oil #4.

System tests fiberglass and steel pipelines.
Tests are conducted at 150% operating pressure.
Mechanical line leak detector must be removed from pipeline for duration of test.
 Pipeline Capacity: Maximum of 75 gallons.

 Waiting Time:     Minimum of 6 hours between delivery and testing.
                   Minimum of 30 minutes between dispensing and testing.

 Test Period:       Minimum of 30 minutes.
                   Test data are acquired and recorded manually.
                   Manual calculations are performed by the operator on site.

 Calibration:       System must be checked annually and calibrated if necessary in accordance with
                   manufacturer's instructions.
Hasstech
6985 Flanders Dr.
San Diego, CA 92121
Tel: (619) 457-5880
                             Evaluator: Lamar University
                             Tel: (409) 880-8788

                             Date of Evaluation: 03/25/91
                                                 120
Appearance on this list Is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                             Hasstech
                                                                              Revision Date: April 18,1997
                                 Leak Computer Tank Test System

         VOLUMETRIC TANK TIGHTNESS TEST METHOD (OVERFILL) (Edison Lab Protocol)

Certification:          Leak rate of 0.1 gph with PD=95% and PFA=5%.
Leak Threshold:


Applicability:


Tank Capacity:


Waiting Time:
Test Period:
Temperature:

Groundwater:
Calibration:


Comments:
0.05 gph.  A leak is declared if the output of the measurement system equals or
exceeds this threshold.

Gasoline, diesel, aviation fuel, fuel oils #4 and #6, waste oil, and solvents.
Other liquids may be tested after consultation with the manufacturer.

Maximum of 12,000 gallons.
Tank must be minimum 100% full.

Test data are acquired and recorded by a computer that calculates a leak
rate every minute, and determines waiting time for satisfactory data (test
is finished when the standard deviation of 30 sequential leak rates is less than half
of the last leak rate determined).
There must be no dispensing or delivery during waiting time.

Minimum of 1 hour, 10 minutes.
Test data are acquired and recorded by a computer.
Leak rate is calculated from data determined to be valid by statistical analysis.
The're must be no dispensing or delivery of product during test.

Average for product is determined by a minimum of 7 thermistors.

If depth to groundwater in backfill cannot be determined, tank must pass a two
level test with at least a 3 foot difference in product level.
If depth to groundwater in backfill can be determined, a single level test
can be conducted provided a minimum net pressure of 1 psi exists at
bottom of tank during test.

Level sensor must be calibrated before each test.
Thermistors must be checked annually and calibrated if necessary.

Not evaluated using manifold tank systems.
Evaluated at EPA Edison Risk Reduction Engineering
Laboratory prior to the EPA standard protocols being written.
Hasstech
6985 Flanders Dr.
San Diego, CA 92121
Tel: (619) 457-5880
             Evaluatbr: U.S. EPA Risk Reduction Engineering Laboratory
             Tel: (201) 321-6631

             Date of Evaluation: 11/88
                                                121
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                             Hasstech
                                                                              Revision Date: April 18,1997
Certification:

Leak Threshold:


Applicability:


Tank Capacity:


Waiting Time:
Test Period:




Temperature:

Groundwater:



Calibration:


Comments:
              Leak Computer Tank Test System

VOLUMETRIC TANK TIGHTNESS TEST METHOD (UNDERFILL)

    Leak rate of 0.1 gph with PD>99% and PFA<"! -0%.

    0.05 gph.  A leak is declared if the output of the measurement system equals or
    exceeds this threshold.

    Gasoline, diesel, aviation fuel, fuel oils #4 and #6, waste oil, and solvents.
    Other liquids may be tested after consultation with the manufacturer.

    Maximum of 15,000 gallons.
    Tank must be minimum 90% full.

    Test data are acquired and recorded by a computer that calculates a leak
    rate every minute, arid determines waiting time for satisfactory data (test
    is finished when the standard deviation of 30 sequential leak rates is less than half
    of the last leak rate determined).
    There must be no dispensing or delivery during waiting time.

    Minimum of 1  hour, 10 minutes.
    Test data are acquired and recorded by a computer.
    Leak rate is calculated from data determined to be valid by statistical analysis.
    There must be no dispensing or delivery during test.

    Average for product is determined by a minimum of 7 thermistors.

    Depth to  groundwater in backfill  must be determined.  If groundwater is  above
    bottom of tank, product level must be adjusted to provide a minimum net pressure of
    1 psi at bottom of tank during test.

    Level sensor must be calibrated before each test.
    Thermistors must be checked annually and calibrated if necessary.

    Not evaluated using manifold tank systems.
    Tests only portion of tank containing product.
    As product level is lowered, leak rate in a leaking tank decreases (due to
    lower head pressure).   Consistent testing at low levels could allow a leak to remain
    undetected.
    EPA leak detection regulations require testing of the portion of the tank system which
    routinely contains product.
Hasstech
6985 Flanders Dr.
San Diego, CA 92121
Tel: (619) 457-5880
                             Evaluator: Law Engineering Industrial Services
                             Tel: (800) 672-6601

                             Date of Evaluation: 04/17/91
                                                 122
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:


Applicability:

Specification:
                                                            Revision Date: April18, 1997
                    Heath Consultants, Inc.

                     Petro Tite Line Tester

               LINE TIGHTNESS TEST METHOD

Leak rate of 0.1 gph with PD=99.99% and PFA=0.37%.

0.01 gph. A leak is declared if the output of the measurement system equals or exceeds
this threshold.

Gasoline, diesel, aviation fuel, fuel oil.

System tests fiberglass and steel pipelines.
Tests are conducted at 150% operating pressure.
Mechanical line leak detector must be removed from pipeline for duration of test.
Pipeline Capacity: Maximum of 129 gallons.

Waiting Time:     None between delivery and testing.
                   None between dispensing and testing.

Test Period:       Minimum of 1 hour (four 15 minute readings).; A 1 hour pretest at or above test
                   pressure is conducted to eliminate the effects of pipe deflection/stretch on the
                   results.
                   Test data are acquired and recorded manually.

Calibration:       System must be checked annually and calibrated if necessary in accordance with
                   manufacturer's instructions.
 Heath Consultants, Inc.
 9030 Monroe Rd.
 Houston, TX 77061
 Tel: (713) 947 9292
                              Evaluator: Ken Wilcox Associates
                              Tel: (816) 443-2494

                              Date of Evaluation: 03/11/91
                                                 123
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
 Certification:

 Leak Threshold:


 Applicability:

 Tank Capacity:




 Watting Time:


 Test Period:
 Temperature:

 Groundwater:



 Calibration:



 Comments:
                                                         Revision Date: April 18,1997
                  Heath Consultants, Inc.

                        Petro Comp

VOLUMETRIC TANK TIGHTNESS TEST METHOD (OVERFILL)

   Leak rate of 0.1 gph with PD=99% and PFA=0.98%.

   0.05 gph. A leak is declared if the output of the measurement system equals or
   exceeds this threshold.

   Gasoline, diesel, aviation fuel, solvents, alcohols and water.

   Maximum of 15,000 gallons.
   Tank must be minimum 100% full.
   An automatic product leveler must be used to maintain a constant product
   level during test.

   None between delivery and testing.
   There must be no dispensing or delivery during waiting time.

   Minimum of 2  hours after the completion of the high level circulation.
   Test data are acquired  and recorded by a computer after the completion of
   the high level circulation.
   Leak rate is calculated based on cumulative volume change during low level test
   (generally based on 1 hour average volume change).
   Product must be mixed continuously throughout test period.
   There must be no dispensing or delivery during test.

   Average for product is determined by a single temperature sensor.

   Depth to groundwater  in backfill must be determined.  If groundwater is above
   bottom of tank, product level must be adjusted to provide a minimum net pressure of
   4 psi at  bottom of tank during test.

   Temperature sensor is self calibrating.
   Level sensor must be checked annually and calibrated if necessary in accordance
   with manufacturer's  instructions.

   Not evaluated  using manifold tank systems.
Heath Consultants, Inc.
9030 Monroe Rd.
Houston, TX 77061
Tel: (713) 947-9292
                          Evaluator: Ken Wilcox Associates
                          Tel: (816) 443-2494

                          Date of Evaluation: 12/15/90
                                                124
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
tha method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:


Applicability:

Tank Capacity:




Waiting Time:


Test Period:
 Temperature:

 Groundwater:



 Calibration:


 Comments:
                                                         Revision Date: April 18, 1997
                  Heath Consultants, Inc.

                        PetroTitell

VOLUMETRIC TANK TIGHTNESS TEST METHOD (OVERFILL)

 Leak rate of 0.1 gph with PD=99% and PFA=1 %•

 0.05 gph. A leak is declared if the output of the measurement system equals or
 exceeds this threshold.

 Gasoline, diesel, aviation fuel, fuel oil #4.

 Maximum of 15,000 gallons.
 Tank must be minimum 100% full.
 An automatic product leveler must be used to maintain a constant product level
 during test.

 None between delivery and testing.
 There must be no dispensing or delivery during waiting time.

 Minimum of 2 hours.
 Test data are acquired and recorded manually.
 Leak rate calculated based on cumulative volume change during  low level test
 (generally based on 1  hour average volume change).
 Product must be mixed continuously throughout test period.
 There must be no dispensing or delivery during test.

 Average for product is determined by a single DTS-2000 digital sensor.

 Depth to groundwater in backfill must be determined.  If groundwater is above bottom
 of tank, product level  must be adjusted to provide a minimum net pressure of 4 psi at
 bottom of tank during  test.

 Sensor calibration must be checked at each use and the DTS-2000 recertified a
 minimum of once every 3 years.

 Not evaluated using manifold tank systems.
 Heath Consultants, Inc.
 9030 Monroe Rd.
 Houston, TX 77061
 Tel: (713) 947-9292
                            Evaluator: Ken Wilcox Associates
                            Tel: (816) 443-2494

                            Date of Evaluation: 11/01/90
                                                 125
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

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 Certification:

 Leak Threshold:


 Applicability:

 Specification:
                                                            Revision Date: April 18,1997
                   Horner Creative Products

              EZY-Chek Manual Line Leak Detector

               LINE TIGHTNESS TEST METHOD

Leak rate of 0.1 gph with PD=98.0% and PFA=1%.

0.05 gph. A leak is declared if the output of the measurement system equals or exceeds
this threshold.

Gasoline, diesel, aviation fuel, fuel oil #4, waste oil, and solvents.

System tests fiberglass and steel pipelines.
Tests are conducted at 150% operating pressure.
Mechanical line leak detector must be removed from pipeline for duration of test.
Pipeline Capacity: Maximum of 129 gallons.

Waiting Time:     None between delivery and testing.
                   None between dispensing and testing.

Test Period:       Minimum of 1  hour, 30 minutes.
                   Data are collected every 15 minutes.
                   Testing period consists of a monitor mode and test mode.
                   Data are collected in the monitor mode until two consecutive records are within 0.01
                   gallon of each other.
                   Four data points must be taken in test mode for a final gph result.
                   Test data are acquired and recorded manually.
                   Manual calculations performed by the operator on site.

Calibration:        No temperature sensors used.
                   No calibration required.
                   System must be checked annually in accordance with manufacturer's instructions.
Homer Creative Products
212 Morton St.
Bay City, Ml 48706
Tel: (517) 893-3360
                             Evaluator: Ken Wilcox Associates
                             Tel: (816) 443-2494

                             Date of Evaluation: 07/09/92
                                                126
Appearance on Ms list Is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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Certification:

Leak Threshold:


Applicability:

Specification:
                                                            Revision Date: ApriM 8,1997
                   Homer Creative Products

           EZY-Chek II Automatic Line Leak Detector

               LINE TIGHTNESS TEST METHOD

Leak rate of 0.1 gph with PD=99.0% and PFA=1%-

0.05 gph.  A leak is declared if the output of the measurement system equals or exceeds
this threshold.

Gasoline, diesel, aviation fuel, fuel oil #4, waste oil, and solvents.

System tests fiberglass and steel pipelines.
Tests are conducted at 150% operating pressure.
Pipeline Capacity: Maximum of 129 gallons.

Waiting Time:     None between delivery and testing.
                   None between dispensing and testing.

Test Period:       Minimum of 2 hours.
                   Data are collected every 30 seconds.
                   Testing period consists of a monitor mode and test mode.
                   Data are collected in monitor mode until two consecutive 15 minute records are
                   within 0.01 gallon of each other.  Then an additional 15 minutes is required in monitor
                   mode before start of test mode.
                   Data are collected in test mode for 1 hour, 7 minutes.
                   Test data are acquired and recorded by a microprocessor.
                   Calculations are automatically performed by the microprocessor.

Calibration:       Sensors must be calibrated before each test.
 Homer Creative Products
 212 Morton St.
 Bay City, Ml 48706
 Tel: (517) 893-3360
                              Evaluator: Ken Wilcox Associates
                              Tel: (816) 443-2494

                              Date of Evaluation: 07/13/92
                                                 127
 Appearance oh this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                             Horner Creative Products
                                                                                             Revision Date: April 18,1997
                                                        EZY3


                      NON-VOLUMETRIC TANK TIGHTNESS TEST METHOD (VACUUM)

 Certification:               Leak rate of 0.1 gph with Po=100% and PFA=O%.

 Leak Threshold:            A leak is declared when the vacuum decay is more than 1 inch water column pressure
                            for non-volatile products and 10% of the lower determined vapor pressure for volatile products.
                            A leak is also declared if any water ingress is detected.

 Applicability:               Gasoline, diesel, aviation fuel, fuel oils #4 and #6, waste oil, and solvents.

 Tank Capacity:              Maximum of 12,000 gallons if groundwater is not present.                              •
                            Maximum of 50,000 gallons if groundwater is present and a vacuum of 1.0 to 1.7 psj can be
                            maintained.
                            For gasoline, ullage volume must be between 800 and 2,500 gallons.
                            For diesel, ullage volume must be between 500 and 1,500 gallons.

 Waiting Time:               None between delivery and testing.

 Test Period:     *           Minimum of 2 hours, 30 minutes for gasoline (1 hour, 30 minutes vapor equilibrium recirculation
                            time plus 1 hour test period).
                            Minimum of 1 hour, 30 minutes for diesel and less volatile products (30 minutes vapor
                            equilibrium recirculation time plus 1 hour test period).
                            The vapor equilibrium recirculation time is the time required to apply a vacuum
                            and to saturate ullage with vapors.
                            Test data are acquired and recorded manually.

 Water Sensor:              Conductivity water sensor must be used to detect water ingress and must be calibrated for every test.
                            Minimum detectable water level is 0.014 inch.
                            Minimum detectable change in water level is 0.0095 inch.
                            Minimum water level in the tank must be adjusted to 0.014 inch before sensor calibration
                            begins.
                            Actual water ingress test period depends on tank size and must be calculated  in
                            accordance with manufacturer's instructions, but must be a minimum of 1 hour.

 Groundwater: •             Depth to groundwater in backfill must be determined. If groundwater is above bottom of tank,
                            water sensor must be used and test time extended to ensure water ingress detection during test.

 Test Pressure:              Vacuum must be maintained between 1.0 to 1.7 psi at bottom of tank.
                            Vacuum must not be greater than 4.0 psi in ullage.

 Comments:                 Not evaluated using manifold tank systems.
                            Evaluated using gasoline and diesel.
                            Test may not be effective in some backfill (such as clay) because it may
                            plug holes in tank.
                            If soil is saturated with product, air or water ingress may not be detected by vacuum
                            test A well point in backfill may help identify presence of this condition.
Homer Creative Products
212 Morton St
Bay City, Ml 48706
Tel: (517) 893-3360
Evaluator: Ken Wilcox Associates
Tel: (816) 443-2494

Dates of Evaluation: 08/23/94 and 02/08/95
                                                         128
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                     Horner Creative Products

                                       SIR PRO 1 Version 1.0

            STATISTICAL INVENTORY RECONCILIATION TEST METHOD (QUALITATIVE)
                                                                              Revision Date: Apr'rt 18,1997
Certification:

Leak Threshold:

Applicability:

Tank Capacity:

Data Requirement:

Comments:
Leak rate of 0.2 gph with PD=100% and PFA=0%.

0.1 gph. A leak is declared when leak rate equals or exceeds this threshold.

Gasoline, diesel, aviation fuel, and  fuel oil #4.

Maximum of 18,000 gallons.

Minimum of 30 days of product level and flow through data.

Not evaluated using data from manifolded tanks.
Of 120 data sets submitted for evaluation, 10 were inconclusive.
Median monthly throughput of tanks evaluated was 13,640 gallons.
Leak rate of 0.2 gph was used in evaluation.
Data sets evaluated were supplied by evaluator.
 Horner Creative Products
 212 Morton St.
 Bay City, Ml 48706
 Tel: (517) 893-3360
                             Evaluator: Petro Works
                             Tel: (913) 681-9379
                             Date of Evaluation: 04/07/93
                                                 129
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                       Homer Creative Products

                                        SIR PRO 1 Version 2.0

              STATISTICAL INVENTORY RECONCILIATION TEST METHOD (QUALITATIVE)
                                                                               Revision Date: April 18,1997
 Certification:


 Leak Threshold:

 Applicability:

 Tank Capacity:

 Data Requirement:

 Comments:
Leak rate of 0.1 gph with PD=100% and PFA=0%.
Version 2.0 is designed to meet annual test requirements.

0.05 gph. A leak is declared when the leak rate equals or exceeds this threshold.

Gasoline, diesel, aviation fuel, and fuel oil #4.

Maximum of 18,000 gallons.

Minimum of 30 days of product level and flow through data.

Not evaluated using data from manifold tank systems.
Of 120 data sets submitted for evaluation, 9 were inconclusive.
Median monthly throughput of tanks evaluated was 11,828 gallons.
Leak rate of 0.1 gph was used in evaluation.
Data sets evaluated were supplied by evaluator.
Homer Creative Products
212 Morton St.
Bay City, Ml 48706
Tel: (517) 893-3360
                            Evaluator: Petro Works
                            Tel: (913) 681-9379

                            Date of Evaluation: 04/07/93
                                                130
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                     Homer Creative Products

                                       SIR PR01 Version 3.0

            STATISTICAL INVENTORY RECONCILIATION TEST METHOD (QUANTITATIVE)
                                                                              Revision Date: April 18,1997
Certification:

Leak Threshold:

Applicability:

Tank Capacity:


Data Requirement:

Comments:
Leak rate of 0.2 gph with PD>99% and PFA
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                                      Horner Creative Products

                                        SIR PRO 1 Version 4.0

             STATISTICAL INVENTORY RECONCILIATION TEST METHOD (QUATITATIVE)
                                                                              Revision ;Date: April 18,1997
 Certification:

 Leak Threshold:

 Applicability:

 Tank Capacity:


 Data Requirement:

 Comments:
Leak rate of 0.1 gph with PD=98% and PFA=2%.

0.05 gph. A leak is declared when leak rate equals or exceeds this threshold.

Gasoline, diesel, aviation fuel, and fuel oil #4.

Maximum of 33,000 gallons for single tanks. Size limits using an acceptable protocol
for manifold tank systems have not been determined.

Minimum of 30 days of product level and flow through data.

Not evaluated for manifold tank systems using an acceptable protocol.
73% of data sets were from manifold tank systems.
Of 41 data sets submitted for evaluation, 4 were inconclusive.
Median monthly throughput of tanks evaluated was 22,370 gallons.
Leak rates ranging from 0.05 to 0.216 gph were used in evaluation.
Data sets evaluated were supplied by evaluator.
Horner Creative Products
212 Morton St.
Bay City, Ml 48706
Tel: (517) 893-3360
                            Evaluator: Ken Wilcox Associates
                            Tel: (816) 443-2494

                            Date of Evaluation: 07/18/95
                                                132
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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Certification:

Leak Threshold:


Applicability:

Tank Capacity:


Waiting Time:




Test Period:
Temperature:


Groundwater:




Calibration:

Comments:
                                                         Revision Date: ApriH 8, 1997
                 Horner Creative Products

                    Horner EZY-Chek I

VOLUMETRIC TANK TIGHTNESS TEST METHOD (OVERFILL)

   Leak rate of 0.1 gph with PD=99% and PFA=1%.

   0.05 gph.  A leak is declared if the output of the measurement system
   equals or exceeds this threshold.

   Gasoline, diesel, aviation fuel, fuel oil #4, waste oil, and solvents.

   Maximum of 12,000 gallons.
   Tank must be minimum 100% full.

   Minimum of 6 hours between delivery and testing.
   Minimum of 3 hours between "topping off" and testing.
   Total minimum waiting time is 6 hours.
   There must be no product dispensing or delivery during waiting time.

   Minimum of 1 hour, 30 minutes (30 minute monitor period, plus 1 hour
   test period).
   Testing must continue until data meets manufacturer's stop test criteria.
   Volume data are collected and recorded by a strip chart recorder.
   Leak rate is calculated from data of last 1 hour of test period.
   There must be no dispensing or delivery during test.

   Average for product is determined by a resistance temperature detector (RTD)
   and displayed on an LCD readout.

   Depth to groundwater in backfill must be determined. If groundwater is above
   bottom of tank, product level must be adjusted to provide net
   pressure of 2-4 psi at bottom of tank.
   Groundwater level must be stable prior to and during test.

   Level sensors must be calibrated before each test.

   Not evaluated using manifold tank systems.
 Horner Creative Products
 212 Morton St.
 Bay City, Ml 48706
 Tel: (517) 893-3360
                            Evaluator: W. A. Kibbe and Associates
                            Tel: (517) 797-2425

                            Date of Evaluation: 10/03/90
                                                 133
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

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 Certification:

 Leak Threshold:


 Applicability:

 Tank Capacity:


 Waiting Time:




 Test Period:
Temperature:

Groundwater:




Calibration:

Comments:
                                                          Revision Date: April 18,1997
                  Horner Creative Products

                     Horner EZY-Chek II

VOLUMETRIC TANK TIGHTNESS TEST METHOD (OVERFILL)

Leak rate of 0.1 gph with PD=99.95% and PFA=0.05%.

0.05 gph. A leak is declared if the output of the measurement system equals or
exceeds this threshold.

Gasoline, diesel, aviation fuel, fuel oil #4, waste oil, and solvents.

Maximum of 12,000 gallons.
Tank must be minimum 100% full.                                ;

Minimum of 6 hours between delivery and testing.
Minimum of 3 hours between "topping off" and testing.
Total minimum waiting time is 6 hours.
There must be no delivery or dispensing during waiting time.

Minimum of 1 hour, 40 minutes (33 minutes monitor mode and 1 hour, 7 minutes
test mode).
At the conclusion of test mode, data are checked for the manufacturer's stop
test criteria.  If data do not meet the criteria, testing must continue.
Test data are acquired and recorded by a computer.
Leak rate is calculated from last 1 hour, 7 minutes of test period data.
There must be no dispensing or delivery during test.

Average for product is determined by a resistance temperature detector (RTD).

Depth to groundwater in backfill must be determined. If groundwater is above
bottom of tank, product level must be adjusted to provide net pressure of 2-4 psi at
bottom of tank.
Groundwater level must be stable prior to and during test.

Load cell must be calibrated before each use.

Not evaluated using manifold tank systems.
Homer Creative Products
212 Morton St.
Bay City, Ml 48706
Tel: (517) 893-3360
                           Evaluator: W. A. Kibbe and Associates
                           Tel: (517) 797-2425

                           Date of Evaluation: 09/18/90
                                                134
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
tho method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

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Certification:

Leak Threshold:


Applicability:

Tank Capacity:


Waiting Time:


Test Period:
Temperature:

Groundwater:




Calibration:

Comments:
                                                          Revision Date: April 18, 1997
                  Horner Creative Products

                     Homer EZY-Chek II

VOLUMETRIC TANK TIGHTNESS TEST METHOD (UNDERFILL)

   Leak rate of  0.1 gph with PD=95.79% and PFA=4.21%.

   0.05 gph. A leak is declared if the output of the measurement system equals or
   exceeds this threshold.

   Gasoline, diesel, aviation fuel, fuel oil #4, waste oil, and solvents.

   Maximum of 12,000 gallons.
   Tank must be between 98 and 100% full.

   Minimum of 8 hours between delivery and testing.
   There must be no product dispensing or delivery during waiting time.

   Minimum of 1 hour, 40 minutes (33 minutes monitor
   mode and 1 hour, 7 minutes test mode).
   At the conclusion of test mode, data  are checked for the manufacturer's stop
   test criteria.  If data do not meet the criteria, testing must continue.
   Test data are acquired and recorded by a computer.
   Leak rate calculated from last 1 hour, 7 minutes of test period data.
   There must be no dispensing or delivery during test.

   Average for product is determined by a resistance temperature detector (RTD).

   Depth to groundwater in backfill must be determined. If groundwater is above
   bottom of tank, product level must be adjusted to provide a minimum net
  . pressure of 1 psi at bottom of tank during test. If this cannot be accomplished,
   then the tank cannot be tested using this method.

   Load cell must be calibrated before each use.

   Not evaluated using manifold tank systems.
   As product level is lowered, leak rate in a leaking tank decreases (due to
   lower head pressure).  Consistent testing at  low levels could allow a leak to remain
   undetected.
   EPA leak detection  regulations require testing of the portion of the tank system which
   routinely contains product.
Horner Creative Products
212 Morton St.
Bay City, Ml 48706
Tel: (517) 893-3360
                            Evaluator: W. A. Kibbe and Associates
                            Tel: (517) 797-2425

                            Date of Evaluation: 06/25/90
                                                135
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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Certification:

Leak Threshold:


Applicability:

Tank Capacity:


Waiting Time:



Test Period:




Temperature:

Groundwater:



Calibration:


Comments:
                                                         Revision Date: April 18,1997
                      Ibex Industries

                Ibex Precision Test System

VOLUMETRIC TANK TIGHTNESS TEST METHOD (OVERFILL)

   Leak rate of 0.1  gph with Po=99.5% and PFA=0.5%.

   0.05 gph.  A leak is declared if the output of the measurement equals or exceeds
   this threshold.

   Gasoline, diesel, aviation fuel, fuel oil #4, and solvents.

   Maximum of 18,000 gallons.
   Tank must be between 92 and 100% full.

   Minimum of 12 hours between delivery and testing.
   Minimum of 3 hours between "topping off" and testing.
   There must be no product dispensing or delivery during waiting time.

   Minimum of 1 hour.
   Test data are acquired and recorded by a computer.
   Leak rate calculated from data determined valid by statistical analysis.
   There must be no dispensing or delivery during test.

   Average for product is determined by a minimum of 6 temperature sensors.

   Depth to groundwater in backfill must be determined.  If groundwater is above
   bottom of tank, product level must be adjusted to provide net
   pressure of 2-4 psi on bottom of tank during test.

   Level sensors must be calibrated before each test.
   Temperature sensors must be calibrated semi-annually.

   Not evaluated using manifold tank systems.
   Tests only portion of tank containing product.
Ibex Industries                                  Evaluator: Applied Research Center
Moved and left no forwarding address             Tel: (805) 664-2173
or phone number.
                                               Date of Evaluation: 01/18/91
                                                136
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                                                              Revision Date: April 18, 1997
                             IMO Industries Inc., Gems Sensors Division

                         Gems Smartwell Portable Monitor model WPM-535
                              with Groundwater Probe model WP-535

                        LIQUID-PHASE OUT-OF-TANK PRODUCT DETECTOR

Detector:

Output type:               qualitative  ^
Sampling frequency:        intermittent"
Operating principle:         conductive polymer

"Although sensor is a polymer strip which is mounted in the monitoring well, monitor
is a hand held unit which is typically connected to sensor periodically - hence the "intermittent"
designation.

Test Results:
                                         unleaded                                   synthetic
                                         gasoline                                    gasoline
Accuracy (%)                             100                                        100
Detection time (min:sec)                   09:31                                       07:05
Fall time (min:sec)                         55:42                                       17:04
Lower detection limit (cm)                  0.04                                       0.08

Specificity Results:
Activated: unleaded gasoline, synthetic gasoline, n-hexane, diesel fuel, jet-A fuel, toluene, xylene(s).

Comments:
EPA and many states require detection of 1/8 inch (0.32 cm) of product for groundwater monitoring.
Detector is reusable.
IMO Industries Inc., Gems Sensors Division        Evaluator: Carnegie Mellon Research Institute
CowlesRd.                                     Tel: (412) 268-3495
Plainville, CT 06062-1198
Tel: (203) 747-3000                             Date of Evaluation: 04/22/93
                                                137
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                                                               Revision Date: April 18,1997
                                   INCON Intelligent Controls, Inc.

                                     TS-LLD Line Leak Detector

                          AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

Certification:      Leak rate of 3 gph with PD = 100% and PFA = 0%.

Leak Threshold:   1.5 gph. A leak is declared if the output of the measurement system equals or exceeds
                   this threshold.

Applicability:      Gasoline, diesel, aviation fuels, and fuel oil #4.

Specification:     System tests pressurized fiberglass and steel pipelines.
                   Tests are conducted at operating pressure.

Pipeline Capacity: Maximum of 163 gallons.

Waiting Time:     None between delivery and testing.
                   None between dispensing and testing.

Test Period:       Response time is 3 minutes.
                   Test data are acquired and recorded by a microprocessor.
                   Calculations are automatically performed by the microprocessor.

System Features:  Permanent installation on pipeline.
                   Automatic testing of pipeline.
                   Preset threshold.
                   Single test to determine if pipeline is leaking.
                   Dispenser shutdown, numerical "fail" code display and LED alarm light activation
                   if leak is declared.

Calibration:        System must be checked annually in accordance with manufacturer's instructions.
INCON Intelligent Controls, Inc.                    Evaluator: Ken Wilcox Associates
74 Industrial Park Rd.                            Tel: (816) 443-2494
Saco, ME 04072
Tel: (800) 872-3455                              Date of Evaluation: 07/06/95



                                                138
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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 Certification:
                 INCON Intelligent Controls, Inc.

                  TS-LLD Line Leak Detector

       AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

Leak rate of 0.2 gph with PD = 100% and PFA = 0%.
                                                                               Revision Date: April 18,1997
 Leak Threshold:   0.1 gph. A leak is declared if the output of the measurement system equals or exceeds
                   this threshold.
 Applicability:

 Specification:
Gasoline, diesel, aviation fuels, and fuel oil #4.

System tests pressurized fiberglass and steel pipelines.
Tests are conducted at operating pressure.
 Pipeline Capacity: Maximum of 163 gallons.
Waiting Time:
Test Period:
None between delivery and testing.
None between dispensing and testing.

Response time ranges from 50 minutes to 8 hours for rigid piping.
Test data are acquired and recorded by a microprocessor.
Calculations are automatically performed by the microprocessor.
System Features:  Permanent installation on pipeline.
                   Automatic testing of pipeline.
                   Preset threshold.
                   Single test to determine if pipeline is leaking.
                   Dispenser shutdown, numerical "fail" code display and LED alarm light activation
                   if leak is declared.

Calibration:       System must be checked annually in accordance with manufacturer's instructions.

Comments:       After 28 days have elapsed since the last passing monthly line leak test, system shuts
                   off the submersible pump.
                   System display will flash number of days since the last passing test.
                   Operator may reset button to enable dispensing for a 24 hour period.
                   This procedure may be used for a maximum of 4 days.
                   After 32 days have elapsed since last monthly test, system will disable dispensing
                   and automatically initiate a test, and system will not authorize dispensing until a
                   test is passed or system is serviced.
INCON Intelligent Controls, Inc.
74 Industrial Park Rd.
Saco, ME 04072
Tel: (800) 872-3455 ,
                             Evaluator: Ken Wilcox Associates
                             Tel: (816) 443-2494

                             Date of Evaluation: 07/06/95
                                                139
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

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Certification:
                INCON Intelligent Controls, Inc.

                  TS-LLD Line Leak Detector

       AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

Leak rate of 0.1 gph with PD = 100% and PFA = 0%.
                                                                              Revision Date: April 18,1997
Leak Threshold:  0.05 gph. A leak is declared if the output of the measurement system equals or exceeds
                  this threshold.

Applicability:     Gasoline, diesel, aviation fuels, and fuel oil #4.

Specification:     System tests pressurized fiberglass and steel pipelines.
                  Tests are conducted at operating pressure.

Pipeline Capacity: Maximum of 163 gallons.

Waiting Time:     None between delivery and testing.
                  Minimum of 8 hours between dispensing and testing.

Test Period:      Response time is 40 minutes.
                  Test data are acquired and recorded by a microprocessor.
                  Calculations are automatically performed by the microprocessor.

System Features: Permanent installation on pipeline.                                    ,
                  Automatic testing of pipeline.
                  Preset threshold.
                  Single test to determine if pipeline is leaking.
                  Dispenser shutdown, numerical "fail" code display and LED alarm light activation
                  if leak is declared.

Calibration:      System must be checked annually in accordance with manufacturer's instructions,
 INCON Intelligent Controls, Inc.
 74 Industrial Park Rd.
 Saco, ME 04072
 Tel: (800) 872-3455
                              Evaluator: Ken Wilcox Associates
                              Tel: (816) 443-2494

                              Date of Evaluation: 07/06/95
                                                 140
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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 Certification:
                 INCON Intelligent Controls, Inc.

                   TS-LLD Line Leak Detector
                     (for Flexible Pipelines)

       AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

 Leak rate of 3 gph with PD = 100% and PFA = 0%.
                                                                                Revision Date: April 18,1997
 Leak Threshold:  1.5 gph.  A leak is declared if the output of the measurement system equals or exceeds
                   this threshold.
 Applicability:
Gasoline, diesel, aviation fuels, and fuel oil #4.
 Specification:     System tests flexible pipelines.
                   Tests are conducted at operating pressure.

 Pipeline Capacity: Maximum of 49.6 gallons.

 Waiting Time:     None between delivery and testing.
                   None between dispensing and testing.

 Test Period:       Response time is 3 minutes.
                   Test data are acquired and  recorded by a microprocessor.
                   Calculations are automatically performed by the microprocessor.

 System Features:  Permanent installation on pipeline.
                   Automatic testing  of pipeline.
                   Preset threshold.
                   Single test to determine if pipeline is leaking.
                   Dispenser shutdown, numerical "fail" code display and LED alarm light activation
                   if leak is declared.
 Calibration:
System must be checked annually in accordance with manufacturer's instructions.
INCON Intelligent Controls, Inc.
74 Industrial Park Rd.
Saco, ME 04072
Tel: (800) 872-3455
                             Evaluator: Ken Wilcox Associates
                             Tel: (816) 443-2494

                             Date of Evaluation: 07/06/95
                                                 141
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.      «

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Certification:
                INCON Intelligent Controls, Inc.

                  TS-LLD Line Leak Detector
                    (for Flexible Pipelines)

       AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

Leak rate of 0.2 gph with PD = 100% and PFA = 0%.
                                                                              Revision Date: April 18,1997
Leak Threshold:  0.1 gph. A leak is declared if the output of the measurement system equals or exceeds
                  this threshold.
Applicability:

Specification:
Gasoline, diesel, aviation fuels, and fuel oil #4.

System tests flexible pipelines.
Tests are conducted at operating pressure.
Pipeline Capacity: Maximum of 49.6 gallons.

Waiting Time:      None between delivery and testing.
                   None between dispensing and testing.

Test Period:       Response time is 2 hours, 21 minutes.
                   Test data are acquired and recorded by a microprocessor.
                   Calculations are automatically performed by the microprocessor.

System Features:  Permanent installation on pipeline.
                   Automatic testing of pipeline.
                   Preset threshold.
                   Single test to determine if pipeline is leaking.
                   Dispenser shutdown, numerical "fail" code display and LED alarm light activation
                   if leak is declared.

Calibration:       System must be checked annually in accordance with manufacturer's instructions.

Comments:       After 28 days have elapsed since the last passing monthly line leak test, system shuts
                   off the submersible pump.
                   System display will flash number of days since the last passing test.
                   Operator may reset button to enable dispensing for a 24 hour period.
                   This procedure may be used for a maximum of 4 days.
                   After 32 days have elapsed since last monthly test, system will disable dispensing,
                   and automatically initiate a test, and system will not authorize dispensing until a
                   test is passed or system is serviced.
 INCON Intelligent Controls, Inc.
 74 Industrial Park Rd.
 Saco, ME 04072
 Tel: (800) 872-3455
                              Evaluator: Ken Wilcox Associates
                              Tel: (816) 443-2494

                              Date of Evaluation: 07/06/95
                                                 142
 Appearance on this list Is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 tha method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                                                                Revision Date: ApriH 8,1997
                                    INCON Intelligent Controls, Inc.

                                      TS-LLD Line Leak Detector
                                        (for Flexible Pipelines)

                          AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

 Certification:      Leak rate of 0.1 gph with PD = 100% and PFA = 0%.

 Leak Threshold:  0.05 gph. A leak is declared if the output of the measurement system equals or exceeds
                   this threshold.

 Applicability:     Gasoline, diesel, aviation fuels, and fuel oil#4.

 Specification:     System tests flexible pipelines.             .
                   Tests are conducted at operating pressure.

 Pipeline Capacity: Maximum of 49.6 gallons.

 Waiting Time:     None between delivery and testing.
                   Minimum of 8 hours between dispensing and testing.

 Test Period:      Response time is 50 minutes.
                   Test data are acquired and recorded by a microprocessor.
                   Calculations are automatically performed by the microprocessor.

 System Features: Permanent installation on pipeline.
                   Automatic testing of pipeline.
                   Preset threshold.
                   Single test to determine if pipeline is leaking.
                   Dispenser shutdown, numerical "fail" code display and LED alarm light activation
                   if leak is declared.
 Calibration:
System must be checked annually in accordance with manufacturer's instructions.
INCON Intelligent Controls, Inc.
74 Industrial Park Rd.
Saco, ME 04072
Tel: (800) 872-3455
                             Evaluator: Ken Wilcox Associates
                             Tel: (816) 443-2494

                             Date of Evaluation: 07/06/95
                                                 143
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

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Certification:

Leak Threshold:


Applicability:


Tank Capacity:


Waiting Time:



Test Period:




Temperature:


Water Sensor:



 Calibration:


 Comments:
                                                           Revision bate: April 18,1997
                INCON Intelligent Controls, Inc.
                           TS 1000
                   (Magnetostrictive Probe)

            AUTOMATIC TANK GAUGING SYSTEM

Leak rate of 0.2 gph with PD=99.9% and PFA=0.1%.

0.1 gph.  A leak is declared if the measured slope by the system equals or exceeds this
threshold.

Gasoline, diesel, aviation fuel, fuel oil, waste oil, and motor oil.
Other liquids may be tested after consultation with the manufacturer.

Maximum of 15,000 gallons.
Tank must be between 50 and 95% full.

Minimum of 4 hours between delivery and testing.
Minimum of 2 hours between dispensing and testing.
There must be no delivery during waiting time.

Minimum of 5 hours.
Test data are acquired and recorded by a computer.
Leak rate is calculated from data determined to be valid by statistical analysis.
There must be no dispensing or delivery during test.

Average for product is determined by a minimum of 5 resistance temperature
detectors (RTDs)

Must be used to detect water ingress.
Minimum detectable water level in the tank is 1.04 inches.
Minimum detectable water level change is 0.011 inch.

RTDs and probe must be checked and calibrated in accordance with
manufacturer's instructions.

Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
 lower head pressure).  Consistent testing at low levels could  allow a  leak to remain

 EPA leak detection regulations require  testing of the portion of the  tank system  which
 routinely contains product.
 INCON Intelligent Controls, Inc.
 74 Industrial Park Rd.
 Saco, ME 04072
 Tel: (800)872-3455
                              Evaluator: Ken Wilcox Associates
                              Tel: (816) 443-2494

                              Date of Evaluation: 08/05/92
                                                  144
 AMsarance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 K™orequfPm1nt^quiPment should be installed and operated in accordance with all applicable laws and regulator

-------
 Certification:

 Leak Threshold:


 Applicability:


 Tank Capacity:


 Waiting Time:



 Test Period:




 Temperature:


 Water Sensor:



 Calibration:


 Comments:
                                                            Revision Date: April 18, 1997
                 INCON Intelligent Controls, Inc.
                            TS 2000
                    (Magnetostrictive Probe)

             AUTOMATIC TANK GAUGING SYSTEM

 Leak rate of 0.2 gph with PD=99.9% and PFA=0.5%.

 0.058 gph. A leak is declared if the measured slope by the system equals or exceeds this
 threshold.

 Gasoline, diesel, aviation fuel, fuel oil, and waste oil.
 Other liquids may be tested after consultation with the manufacturer.

 Maximum of 15,000 gallons.
 Tank must be between 50 and 95% full.

 Minimum of 6 hours between delivery and testing.
 Minimum of 2 hours between dispensing and testing.
 There must be no delivery during waiting time.

 Minimum of 3 hours.
 Test data are acquired and recorded by a computer.
 Leak rate is calculated from data determined to be valid by statistical analysis.
 There must be no dispensing or delivery during test.

 Average for product is determined by a minimum of 5 resistance temperature
 detectors (RTDs).

 Must be used to detect water ingress.
 Minimum detectable water level in the tank is 1.04 inches.
 Minimum detectable water level change is 0.011 inch.

 RTDs and probe must be checked and calibrated in accordance with
 manufacturer's instructions.

Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
lower head pressure).  Consistent testing at low levels could allow a leak to remain
undetected.
EPA leak detection regulations require  testing  of the portion of the  tank  system which
routinely contains product.
INCON Intelligent Controls, Inc.
74 Industrial Park Rd.
Saco, ME 04072
Tel:  (800)872-3455
                             Evaluator: Ken Wilcox Associates
                             Tel: (816) 443-2494

                             Date of Evaluation: 05/10/91
                                                145
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                  INCON Intelligent Controls, Inc.

                                     Tank Sentinel TS-1000EFI
                                       TSP-DIS BriteSensor

                             LIQUID-PHASE INTERSTITIAL DETECTOR
                                                                               Revision Date: April 1,1997
Detector:

Output type:
Sampling frequency:
Operating principle:

Test Results:
Accuracy (%)
Detection time (min:sec)
Fall time (min)
Lower detection limit (cm)
   product activation height

* See glossary.
qualitative
continuous
opto-electric
unleaded
gasoline
100
03:13



water
100
03:18


synthetic
gasoline
100
03:17


diesel
fuel
100
3:00


heating
oil #2
100
3:02
                                1 .60
1.92
                                                       N/D*
                        N/D
N/D
Specificity Results:
Activated: unleaded gasoline, synthetic gasoline, diesel fuel, heating oil #2, water.


EPA and many states require detection of 1/8 inch (0.32 cm) of product for groundwater monitoring.
Test procedures used were Carnegie Mellon Research Institute's "Test Procedures for Third Party Evaluation
of Leak Detection Methods: Point Sensor Liquid Contact Leak Detection Systems": Final Report - November
11,1991.
Detector is reusable.
 INCON Intelligent Controls, Inc.
 74 Industrial Park Rd.
 Saco, ME 04072
 Tel: (800) 872-3455
                                                 Evaluaton Carnegie Mellon Research Institute
                                                 Tel: (412) 268-3495

                                                 Date of Evaluation: 12/09/94
                                                  146
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 themethod or equipment Equipment should be installed and operated in accordance with all applicable laws and regulatons.

-------
 Detector:

 Output type:
 Sampling frequency:
 Operating principle:
                                   INCON Intelligent Controls, Inc.

                                      Tank Sentinel TS-1000EFI
                                        TSP-HIS BriteSensor

                              LIQUID-PHASE INTERSTITIAL DETECTOR
qualitative
continuous
magnetic switch
                                                                                Revision Date: April 1,1997
 Test Results:
 Accuracy (%)
 Response time (min:sec)
 Recovery time (min)
 Lower Detection Limit (cm)
     Product activation height
     50 wt% Ethylene glycol in water
     up.                 down
     100                100
     17.41               16:47
                  30 wt% Calcium chloride in water
                  up                  down
                  100                 100
                  17:28                16:56
     19.56
2.53
19.40
                                                               2.50
 Specificity Results:
 Activated: 50 wt% Ethylene glycol in water, 30 wt% Calcium chloride in water.

 Comments:
 Intended to monitor level of either ethylene glycol or calcium chloride solutions in interstitial or annular space
 of a double-walled tank. Activates if any significant gain or loss of solution occurs.
 Test procedures used were modified by evaluatorfrom Carnegie Mellon Research Institute's "Test Procedures
 for Third Party Evaluation of Leak Detection Methods: Point Sensor Liquid Contact Leak Detection Systems":
 Final Report - November 11,1991.
 Detector is reusable.
INCON Intelligent Controls, Inc.
74 Industrial Park Rd.
Saco, ME 04072
Tel: (800) 872-3455
                     Evaluator: Carnegie Mellon Research Institute
                     Tel: (412) 268-3495

                     Date of Evaluation: 03/20/95
                                                147
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                  INCON Intelligent Controls, Inc.

                                  Tank Sentinel TS-1000/TS-2000
                      TSP-EIS Standard Sensor, TSP-PS Liquid Contact Sensor

                             LIQUID-PHASE INTERSTITIAL DETECTOR
                                                                              Revision Date: April 1,1997
Detector:

Output type:
Sampling frequency:
Operating principle:

Test Results:
TSP-EIS
qualitative
continuous
opto-electric
Accuracy (%)
Detection time (min:sec)
Fall time (min)
Lower detection limit (cm)
     product activation height

Test Results:
TSP-PS

Accuracy (%)
Detection time (min:sec)
Fall time (min)
Lower detection limit (cm)
     product activation height

* See glossary.
unleaded
gasoline,   water
100        100
03:01      03:07
      1.50
      1.37
N/D*
unleaded
gasoline   water
100        100
01:14      01:25
N/D
                            synthetic
                            gasoline
                            100
                            03:17
N/D
                            synthetic
                            gasoline
                            100
                            01:13
N/D
                        diesel
                        fuel
                        100
                        3:00
                                   N/D
                        diesel
                        fuel
                        100
                        01:10
                                   N/D
                      heating
                      oil #2
                      100
                      3:02
                                                   N/D
                      heating
                      oil #2
                      100
                      01:16
N/D
Specificity Results:
Activated: unleaded gasoline, synthetic gasoline, diesel fuel, heating oil #2, water.

Comments:
EPA and many states require detection of 1/8 inch (0.32 cm) of product for groundwater monitoring.
Test procedures used were Carnegie Mellon Research Institute's "Test Procedures for Third Party Evaluation
of Leak Detection Methods: Point Sensor Liquid Contact Leak Detection Systems": Final Report - November
11,1991.
Detector is reusable.
 INCON Intelligent Controls, Inc.
 74 Industrial Park Rd.
 Saco, ME 04072
 Tel: (800) 872-3455
                      Evaluator: Carnegie Mellon Research Institute
                      Tel: (412) 268-3495

                      Dates of Evaluations: EIS - 01/30/96; PS -
                      07/02/93
                                                148
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 tha method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                   INCON Intelligent Controls, Inc.

                                   Tank Sentinel TS-1000/TS-2000
                        TSP-HLS Standard Sensor, TSP-ULS Standard Sensor

                             LIQUID-PHASE INTERSTITIAL DETECTOR
                                                                               Revision Date: April 1,1997
Detector:

Output type:
Sampling frequency:
Operating principle:

Test Results:
TSP-HLS
qualitative
continuous
magnetic switch
Accuracy (%)
Detection time (min:sec)
Fall time (min)
Lower detection limit (cm)
     product activation height

Test Results:
TSP-ULS

Accuracy (%)
Detection time (min:sec)
Fall time (min)
Lower detection limit (cm)
     product activation height

* See glossary.
unleaded
gasoline   water
100        100
10:09      09.25
5.64       N/D*
unleaded
gasoline   water
100        100
03:50      03.34
2.70       N/D
                            synthetic
                            gasoline
                            100
                            10:14
                            N/D
                            synthetic
                            gasoline
                            100
                            03:49
                            N/D
diesel
fuel
100
09:55
N/D
diesel
fuel
100
03:50
N/D
heating
oil #2
100
10:25
N/D
heating
oil #2
100
03:41
N/D
Specificity Results:
Activated: unleaded gasoline, synthetic gasoline, diesel fuel, heating oil #2, water.

Comments:
EPA and many states require detection of 1/8 inch (0.32 cm) of product for groundwater monitoring.
Test procedures used were Carnegie Mellon Research Institute's "Test Procedures for Third Party Evaluation
of Leak Detection Methods: Point Sensor Liquid Contact Leak Detection Systems": Final Report - November
11,1991.
Detector is reusable.
INCON Intelligent Controls, Inc.
74 Industrial Park Rd.
Saco, ME 04072
Tel: (800) 872-3455
                     Evaluator: Carnegie Mellon Research Institute
                     Tel: (412) 268-3495

                     Date of Evaluations: 01/30/96
                                              .  149
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                             Revision Date: April 1,1997
                                  INCON Intelligent Controls, Inc.

                                    Tank Sentinel TS-1000EFI
                            TSP-DDS BriteSensor, TSP-DTS BriteSensof

                       LIQUID-PHASE OUT-OF-TANK PRODUCT DETECTOR
Detector:

Output type:
Sampling frequency:
Operating principle:

Test Results:
TSP-DDS
qualitative
continuous
magnetic switch, float, and hydrocarbon sensitive polymer
Accuracy (%)
Detection time (min:sec)
Fall time (min:sec)
Lower detection limits (cm)
     product activation height
     product thickness on water

Test Results:
TSP-DTS

Accuracy (%)
Detection time (min:sec)
Fall time (min:sec)
Lower detection limits (cm)
     product activation height
     product thickness on water

* See glossary.
unleaded
gasoline
100
05:35
34:27
water -
low level
100
06:02
<01:00
water -
high level
100
06:09
<01:00
synthetic
gasoline
100
06:00
28:53
diesel
fuel
100
38:43
> 60:00
heating
oil #2
100
38:16
> 60:00
      0.50
      0.04
N/D*
N/D
3.16
N/D
N/D
N/D
unleaded
gasoline
100
06:02
22:28
water -
low level
100
06:02
<01:00
water -
high level
100
06:13
<01:00
synthetic
gasoline
100
05:59
28:53
      0.50
      0.04
N/D
N/D
3.16
N/D
N/D
N/D
N/D
N/D
diesel
fuel
100
38:43
> 60:00

N/D
N/D
N/D
N/D
heating
oil #2
100
38:16
> 60:00

N/D
N/D
Specificity Results:
Activated: unleaded gasoline, synthetic gasoline, diesel fuel, heating oil #2, water.

Comments:                                                                        .  '.
EPA and many states require detection of 1/8 inch (0.32 cm) of product for groundwater monitoring.
Test procedures used were Carnegie Mellon Research Institute's "Test Procedures for Third Party Evaluation
of Leak Detection Methods: Point Sensor Liquid Contact Leak Detection Systems": Final Report - November
11,1991. The procedures for lower detection limit for product thickness were EPA's "Standard Test
Procedures for Evaluating Leak-Detection Methods: Liquid-Phase Out-of-Tank Product Detectors," March
1990.
Detector is reusable.
 INCON Intelligent Controls, Inc.
 74 Industrial Park Rd.
 Saco, ME 04072
 Tel: (800) 872-3455
                      Evaluator: Carnegie Mellon Research Institute
                      Tel: (412) 268-3495

                      Date of Evaluations: 12/09/94
                                                150
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 tha method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Detector:

Output type:
Sampling frequency:
Operating principle:

Test Results:
                                   INCON Intelligent Controls, Inc.

                                      Tank Sentinel TS-1000EFI
                             TSP-MWS BriteSensor Groundwater Probe

                        LIQUID-PHASE OUT-OF-TANK PRODUCT DETECTOR
qualitative
continuous
hydrocarbon-sensitive polymer
                                                                               Revision Date: April 1, 1997
Accuracy (%)
Detection time (min:sec)
Fall time (min:sec)
Lower detection limit (cm)
unleaded
gasoline
100
10:13
26:52
0.04
synthetic
gasoline
100
06:42
14:43
0.04
Specificity Results:
Activated: unleaded gasoline, synthetic gasoline, n-hexane, diesel fuel, jet-A fuel, toluene, xylene(s).

Comments:
EPA and many states require detection of 1/8 inch (0.32 cm) of product for groundwater monitoring.
Detector is reusable.
INCON Intelligent Controls, Inc.
74 Industrial Park Rd.
Saco, ME 04072
Tel: (800) 872-3455
                     Evaluaton Carnegie Mellon Research Institute
                     Tel: (412) 268-3495

                     Date of Evaluation: 02/19/96
                                                151
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                  Keekor Environmental Products
                                                                              Revision Date: April 18,1997
Certification:

Leak Threshold:


Applicability:

Tank Capacity:


Waiting Time:



Test Period:




Temperature:


Water Sensor:



Calibration:



Comments:
 TankTite Leak Detection Kernel Version 1.0 with Keeprobe K7
                   (Magnetostrictive Probe)
            AUTOMATIC TANK GAUGING SYSTEM

Leak rate of 0.2 gph with PD=95.4% and PFA=4.6%.

0.1 gph.  A leak is declared if the output of the measurement system equals or exceeds
this threshold.

Gasoline, diesel, aviation fuel, fuel oils #4 and #6, waste oil, and solvents.

Maximum of 15,000 gallons.
Tank must be between 50 and 90% full.

Minimum of 8 hours, 6 minutes between delivery and testing.
Minimum of 15 minutes after a maximum dispensing rate of 50 gallons per minute.
There must be no delivery during waiting time.

Minimum of 3 hours.
Test data are acquired and recorded by a computer.                  ;
Leak rate is calculated as the average of subsets of all data collected.
There must be no dispensing or delivery during test.

Average for product is determined by a minimum of 5 resistance temperature
detectors (RTDs).

Must be used to detect water ingress.
Minimum detectable water level in the tank is 0.41 inch.
Minimum detectable water level change is 0.0013 inch.

Execution of Probe Check diagnostic routine is recommended prior to leak detect
tests to ensure sensor is fully operational and in calibration.
Annual preventative maintenance should be performed per manufacturer's instructions.

Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
lower head  pressure).   Consistent testing at low levels could allow a leak to remain
undetected.
EPA leak detection regulations require testing of the portion of the  tank system which
routinely contains product.
Keekor Environmental Products
14806 N. 74th St.
Scottsdale, AZ 85260
Tel: (602)443-0001
                             Evaluator: Arizona State University
                             Tel: (602) 965-3185

                             Date of Evaluation: 10/25/94
                                                152
Appearance on this list Is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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Certification:

Leak Threshold:




Applicability:


Tank Capacity:


Waiting Time:




Test Period:
Temperature:

Groundwater:
Calibration:

Comments:
    .                                    _.  ...                 Revision Date: April 18,1997
                   Leak Detection Systems, Inc.

                 Tank Auditor, Version RTDV.2.16

    VOLUMETRIC TANK TIGHTNESS TEST METHOD (OVERFILL)

Leak rate of 0.1 gph with PD=99.98% and PFA=0.02%.

0.05 gph.  A leak is declared if the output of the measurement system equals or exceeds
this threshold, except as noted below.
If using two level testing, the level is changed by 3 feet between the two tests and
a leak is declared if the net change between the two tests is greater than 0.02 gph.

Gasoline, diesel, aviation fuel, fuel oil #4, waste oil, and solvents.
Other liquids may be tested after consultation with the manufacturer.

Maximum of 15,000 gallons.
Tank must be minimum 100% full.

Minimum is variable depending  on site conditions, but not be less than 6 hours  between
delivery and testing.
Minimum of 1  hour between "topping off" and testing.
There must be no dispensing or delivery during waiting time.

Minimum of 1  hour.
Test data are acquired and recorded by a computer.
Leak rate calculated from data determined to be valid by statistical analysis.
There must be no dispensing or delivery during test.

Average for product is determined by a temperature averaging probe.

If depth to groundwater cannot be determined, two tests must be performed
with a level change of at least 3 feet between tests.  If depth to groundwater
in backfill can be determined and it is above bottom  of the tank, product level
must be adjusted to provide height differential of 3 feet between product and
groundwater in backfill during test.

Temperature averaging probe and level sensors must be calibrated before each test.

Not evaluated using manifold tank systems.
Evaluation of system did not include a field evaluation
of groundwater compensation by two level testing.
Leak Detection Systems, Inc.
106LongwaterDr.
Norwell, MA 02061
Tel: (617)878-7766
                                Evaluator: Ken Wilcox Associates
                                Tel: (816) 443-2494

                                Date of Evaluation: 11/29/91
                                                153
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

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Detector:

Output type:
Sampling frequency:
Operating principle:

Test Results:
                                          Mallory Controls

                              Pollulert Probes MD221G/T, MD221G/TRA

                        LIQUID-PHASE OUT-OF-TANK PRODUCT DETECTOR
qualitative
continuous
electrical conductivity
                                                                              Revision Date: April 18,1997
Accuracy (%)
Detection time (sec)
Fall time (sec)
Lower detection limit (cm)
           unleaded
           gasoline
           100
           4
           3
           0.08-0.32
synthetic
gasoline
100
7
4
0.08-0.32
JP-4
jet fuel
100
2
4
0.08-0.32
Specificity Results:
Activated: unleaded gasoline, synthetic gasoline, n-hexane, diesel fuel, jet-A fuel, JP-4 jet fuel, toluene,
xylene(s).

Comments:
EPA and many states require detection of 1/8 inch (0.32 cm) of product for groundwater monitoring.
Evaluation was conducted using probe FD221G/TRA.
According to manufacturer, probes beginning with "MD" have identical performance as older probes beginning
with "FD."
Test procedures used were Radian Corporation's draft report "Development of Procedures to Assess
the Performance of External Leak Detection Devices: Liquid-Phase ASTM-Formatted Methods,"
June 29,1990.
Detector is reusable.
Detector has been discontinued by manufacturer.
Mallory Controls
2831 Waterfront Pkwy. E. Dr.
Indianapolis, IN 46214
Tel: Not Available
                      Evaluator: Radian Corp.
                      Tel: (512) 454-4797

                      Date of Evaluation: 07/08/91
                                                154
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                                                              Revision Date: April 18, 1997
                                          Mallory Controls

                     Pollulert Probes MD241R, MD241RRA, MD241G, MD241GRA

                        LIQUID-PHASE OUT-OF-TANK PRODUCT DETECTOR

Detector:

Output type:               qualitative
Sampling frequency:        continuous
Operating principle:         electrical conductivity

Test Results:
                                 unleaded              synthetic                 JP-4
                                 gasoline               gasoline                 jet fuel
Accuracy (%)                     100                   100                     100
Detection time (sec)               22                       1
Fall time (sec)                    1                      2                       2
Lower detection limit (cm)          0.16-0.32              0.16-0.32                0.16-0.32

Specificity Results:
Activated: unleaded gasoline, synthetic gasoline,  n-hexane, diesel fuel, jet-A fuel, JP-4 jet fuel, toluene,
xylene (s).
                                                                                         v
Comments:
EPA and many states require detection of 1/8 inch (0.32 cm) of product for groundwater monitoring.
Evaluation was conducted using probe FD241 R.
According to manufacturer, probes beginning with "MD" have identical performance as older probes beginning
with "FD."
Test procedures used were Radian Corporation's draft report "Development of Procedures to Assess the
Performance of External Leak Detection Devices: Liquid-Phase ASTM-Formatted Methods," June 29,1990.
Detector is reusable.
Detector has been discontinued by manufacturer.
Mallory Controls                                 Evaluator: Radian Corp.
2831 Waterfront Pkwy. E. Dr.                     Tel: (512) 454-4797
Indianapolis, IN  46214
Tel: Not available                                Date of Evaluation: 07/08/91
                                                 155
Appearance on this list is hot to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
 Detector:

 Output type:
 Sampling frequency:
 Operating principle:

 Test Results:
                                          Mallory Controls

                      Pollulert Probes MD221V, MD221VRA, MD210V, MD210VRA

                        VAPOR-PHASE OUT-OF-TANK PRODUCT DETECTOR
qualitative
continuous
adsistor
                                                                             Revision Date: April 18,1997
Accuracy (%)
Detection time (sec)
Fall time (min:sec)
Lower detection limit (ppm)
    unleaded gasoline
    100
    91
    5:39
    10 to 100
synthetic gasoline
100
65
4:23
10 to 500
 JP-4 iet fuel
100
86
9:38
10 to 50
Specificity Results:
Activated: unleaded gasoline, synthetic gasoline, JP-4 j'et fuel, toluene, xylene(s).
Not Activated: n-hexane.                                                                          /

Comments:
Evaluation was conducted using probe FD221V.
According to manufacturer, probes beginning with "MD" have identical performance as older probes beginning
with TD."
Test procedures used were Radian Corporation's draft report "Development of Procedures to Assess the
Performance of External Leak Detection Devices: Vapor-Phase ASTM-Formatted Methods," Uune 29,1990.
Detector has been discontinued by manufacturer.
Mallory Controls
2831 Waterfront Pkwy. E. Dr.
Indianapolis, IN 46214
Tel: Not available.
                     Evaluator: Radian Corp.
                     Tel: (512) 454-4797

                     Date of Evaluation: 07/08/91
                                                156
Appearance on this list Is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                              Revision Date: April 18,1997
Certification:

Leak Threshold:


Applicability:

Specification:
                         Marley Pump Co.

Red Jacket PPM 4000, RLM 9000, RLM 10000, ST1401L, and ST1801L

         AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

       Leak rate of 3.0 gph with PD=100% and PFA=0%.

       2.0 gph.  A leak is declared if the output of the measurement system
       equals or exceeds this threshold.

       Gasoline, diesel, aviation fuel and solvents.
Pipeline Capacity:

Waiting Time:


Test Period:



System Features:
Calibration:
       System tests pressurized fiberglass and steel pipelines. ,
       Tests are conducted at 5-10 psi.

       Maximum of 55.1 gallons.

       None between delivery and testing.
       None between dispensing and testing.

       Response time is 1 minute.
       Test data are acquired and recorded by a microprocessor.
       Calculations are automatically performed by the microprocessor.

       Permanent installation on pipeline.
       Automatic testing of pipeline.
       Preset threshold.
       Single test to determine if pipeline is leaking.
       Recording and display of day, date, and time of positive test.
       Dispenser shutdown, message display, and alarm activation if leak is declared.

       System must be checked annually and calibrated if necessary in accordance with
       manufacturer's instructions.
Marley Pump Co.
5800 Foxridge Dr.
Mission, KS 66202
Tel: (913) 813-5700
                                Evaluator: Ken Wilcox Associates
                                Tel: (816) 443-2494

                                Date of Evaluation: 03/11/91, Rev. 04/94
                                                 157
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
 Certification:
                         Marley Pump Co.

Reef Jacket PPM 4000, RLM 9000, RLM 10000, ST1401L, and ST1801L

         AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

   Leak rate of 0.2 gph with PD=100% and PFA=0%.
                                                                               Revision Date: April 18,1997
 Leak Threshold:    0.1 gph.  A leak is declared if the output of the measurement system equals or exceeds
                    this threshold.
 Applicability:

 Specification:
   Gasoline, diesel, aviation fuel and solvents.

   System tests pressurized fiberglass and steel pipelines.
   Tests are conducted at 5-10 psi.
 Pipeline Capacity:  Maximum of 55.1 gallons.
 Waiting Time:


 Test Period:
   None between delivery and testing.
   None between dispensing and testing.

   Minimum of 10 minutes.
   Test data are acquired and recorded by a microprocessor.
   Calculations are automatically performed by the microprocessor.
System Features:   Permanent installation on pipeline.
                    Automatic testing of pipeline.
                    Preset threshold.
                    Single test to determine if pipeline is leaking.
                    Recording and display of day, date, and time of positive test.
                    Dispenser shutdown, message display, and alarm activation if leak is declared.

Calibration:        System must be checked annually and calibrated if necessary in accordance with
                    manufacturer's instructions.
Mariey Pump Co.
5800 Foxridge Dr.
Mission, KS 66202
Tel: (913) 813-5700
                               Evaluator: Ken Wilcox Associates
                               Tel: (816) 443-2494

                               Date of Evaluation: 03/11/91, Rev. 04/94I
                                                158
Appearance on this list Is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                              Revision Date1. AptiHS, 1997
                                         Mariey Pump Co.

                Red Jacket PPM 4000, RLM 9000, RLM 10000, ST1401L, and ST1801L

                         AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

Certification:        Leak rate of 0.1 gph with PD=100% and PFA=0%.

Leak Threshold:    0.047 gph. A leak is declared if the output of the measurement system equals or
                    exceeds this threshold.

Applicability:        Gasoline,  diesel, aviation fuel and solvents.

Specification:       System tests pressurized fiberglass and steel pipelines.
                    Tests are  conducted at 5-10 psi.

Pipeline Capacity:   Maximum of 55.1 gallons.

Waiting Time:       None between delivery and testing.
                    None between dispensing and testing.

Test Period:        Minimum of 2 hours, 30 minutes.
                    Test data  are acquired and recorded by a microprocessor.
                    Calculations are automatically performed by the microprocessor.

System Features:   Permanent installation on pipeline.
                    Automatic testing of pipeline.
                    Preset threshold.
                    Single test to determine if pipeline is leaking.
                    Recording and display of day, date, and time of positive test.
                    Dispenser shutdown, message display, and alarm activation if leak is declared.

Calibration:         System must be checked annually and calibrated if necessary in accordance with
                    manufacturer's instructions.
Mariey Pump Co.                               Evaluator: Ken Wilcox Associates
5800 Foxridge Dr.                               Tel: (816)443-2494
Mission, KS 66202
Tel: (913) 813-5700                             Date of Evaluation: 03/11/91, Rev. 04/94



              '                                  159        .
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of'the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.  .

-------
 Certification:

 Leak Threshold:


 Applicability:

 Specification:


 Pipeline Capacity:

 Waiting Time:


 Test Period:

 System Features:
Calibration:
                                                          Revision Date: April 18,1997
                      Marley Pump Co.

                  Red Jacket OLD and XLD

     AUTOMATIC MECHANICAL LINE LEAK DETECTOR

Leak rate of 3.0 gph with PD=100% and PFA=0%.

2.0 gph. A leak is declared if the output of the measurement
system equals or exceeds this threshold.

Gasoline, diesel, aviation fuel and solvents.

System tests pressurized fiberglass and steel pipelines.
Tests are conducted at 8-12 psi.

Maximum of 129 gallons.

None between delivery and testing.
None between dispensing and testing.

Response time is 6 seconds.

Permanent installation on pipeline.
Automatic testing of pipeline.
Preset threshold.
Single test to determine if pipeline is leaking.
Restricted flow to dispenser if leak is declared.

System must be checked annually and calibrated if necessary in accordance with
manufacturer's instructions.
Marley Pump Co.
5800 Foxridge Dr.
Mission, KS 66202
Tel: (913) 813-5700
                           Evaluator: Ken Wilcox Associates
                           Tel: (816) 443-2494

                           Date of Evaluation: 12/21/90
                                                160
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws,and regulations.

-------
Certification:

Leak Threshold:


Applicability:

Specification:


Pipeline Capacity:

Waiting Time:




Test Period:

System Features:
Calibration:
                                                          Revision Date: Apffl 18, ^997
                     Marley Pump Co.

                    Red Jacket FX1/FX2

     AUTOMATIC MECHANICAL LINE LEAK DETECTOR

Leak rate of 3.0 gph with PD=100% and PFA=0%.

2.0 gph.  A leak is declared if the output of the measurement system
equals or exceeds this threshold.

Gasoline, diesel, aviation fuel, and some solvents.

System tests pressurized fiberglass and steel pipelines.
Tests are conducted at 8-12 psi.

Maximum of 158 gallons.

None between delivery and testing.
None between dispensing and testing.
Stabilization time up to 45 minutes may be required after dispensing when
temperature extremes are present.

Response time is less than 5 minutes.

Permanent installation on pipeline.
Automatic testing of pipeline.
Preset threshold.
Single  test to determine if pipeline  is leaking.
Restricted flow to dispenser if leak is declared.

System must be checked annually and calibrated if necessary in accordance with
manufacturer's instructions.
Marley Pump Co.
5800 Foxridge Dr.
Mission, KS 66202
Tel: (913) 813-5700
                            Evaluator: Ken Wilcox Associates
                            Tel: (816) 443-2494

                            Date of Evaluation: 03/14/94
                                                 161
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
 Certification:

 Leak Threshold:


 Applicability:

 Specification:

 Pipeline Capacity:

 Waiting Time:


 Test Period:

 System Features:
 Calibration:


 Comments:
                                                           Revision Date: April 18,1997
                      Marley Pump Co.

                Red Jacket FX1/FX2 Flexline
                   (for Flexible Pipelines)

     AUTOMATIC MECHANICAL LINE LEAK DETECTOR

 Leak rate of 3.0 gph with PD=100% and PFA=0%.

 2.0 gph. A leak is declared if the output of the measurement system
 equals or exceeds this threshold.

 Gasoline, diesel, aviation fuel, and some solvents.

 System tests pressurized flexible pipelines.

 Maximum of 49 gallons.

 None between delivery and testing.
 None between dispensing and testing.

 Response time is less than 3 minutes.

 Permanent installation on pipeline.
Automatic testing of pipeline.
 Preset threshold.
Single test to determine if pipeline is leaking.
 Restricted flow to dispenser if leak is declared.

System must be checked annually and calibrated if necessary in accordance with
 manufacturer's instructions.

 Enviroflex pipeline with a bulk modulus* of 1,280 psi was used during this evaluation.
To perform a valid test, time delays must be integrated into electronic dispensing
equipment or retrofitted in junction box. Without this delay, there is no guarantee that
a nozzle will be closed for sufficient time to allow leak detector to perform pipeline
test and provide uninterrupted service.

*See glossary.
Marley Pump Co.
5800 Foxridge Dr.
Mission, KS 66202
Tel: (913) 813-5700
                           Evaluator: Ken Wilcox Associates
                           Tel: (816) 443-2494

                           Date of Evaluation: 03/22/94
                                                 162
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
tha method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:


Applicability:

Specification:


Pipeline Capacity:

Waiting Time:




Test Period:

System Features:
 Calibration:
                                                          Revision Date: April 18,1997
                     Marley Pump Co.

             Red Jacket FX2/FX2-D and Bigflo

    AUTOMATIC MECHANICAL LINE LEAK DETECTOR

Leak rate of 3.0 gph with PD=100% and PFA=0%.

2.0 gph. A leak is declared if the output of the measurement system
equals or exceeds this threshold.

Gasoline, diesel.

System tests pressurized fiberglass and steel pipelines.
Tests are conducted at 8-12 psi.

Maximum of 362 gallons.

None between delivery and testing.
None between dispensing and testing.
Stabilization time up to 45 minutes may be required after dispensing when
temperature extremes are present.

Response time is 3  minutes.

Permanent installation on pipeline.
Automatic testing of pipeline.
Preset threshold.
Single test to determine if pipeline is leaking.
Restricted flow to dispenser if leak is declared.

System must be checked annually and calibrated if necessary in accordance with
manufacturer's instructions.
 Marley Pump Co.
 5800 Foxridge Dr.
 Mission, KS 66202
 Tel: (913) 813-5700
                            Evaluator: Ken Wilcox Associates
                            Tel: (816) 443-2494

                            Dates of Evaluation: 3/15/94 and 6/1/94
                                                  163
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                                Revision Date: April 18,1997
                                           Marley Pump Co.

                                            RedJacketXLP

                          AUTOMATIC MECHANICAL LINE LEAK DETECTOR

  Certification:      Leak rate of 3.0 gph with PD=100% and PFA=0%.

  Leak Threshold:   2.0 gph. A leak is declared if the output of the measurement system
                    equals or exceeds this threshold.

  Applicability:      Gasoline, diesel, aviation fuel and solvents.

  Specification:     System tests pressurized fiberglass and steel pipelines.
                    Tests are conducted at 15-22 psi.

  Pipeline Capacity: Maximum of 129 gallons.

 Waiting Time:     None between delivery and testing.
                    None between dispensing and testing.

 Test Period:       Response time is 6 seconds.

 System Features:  Permanent installation on pipeline.
                    Automatic testing of pipeline.
                    Preset threshold.
                    Single test to determine if pipeline is leaking.
                    Restricted flow to dispenser if leak is declared.

 Calibration:        System must be checked annually and calibrated if necessary in accordance with
                    manufacturer's instructions.                                       :
Marley Pump Co.                                Evaluator: Ken Wilcox Associates
5800 Foxridge Dr.                                Tel: (816) 443-2494
Mission, KS 66202
Tel: (913) 813-5700                              Date of Evaluation: 12/21/90
                                                164
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations

-------
Certification:

Leak Threshold:


Applicability:

Specification:


Pipeline Capacity:

Waiting Time:


Test Period:

System Features:
Calibration:
                                                          Revision Date; April 18,1997
                     Marley Pump Co.

                      Red Jacket XLP
                  (for Flexible Pipelines)

     AUTOMATIC MECHANICAL LINE LEAK DETECTOR

Leak rate of 3.0 gph with PD=100% and PFA=0%.

2.0 gph. A leak is declared if the output of the measurement system
equals or exceeds this threshold.

Gasoline, diesel, aviation fuel and solvents.

System tests pressurized flexible pipelines.
Tests are conducted at operating pressure.

Maximum of 48.9 gallons.

None between delivery and testing.
None between dispensing and testing.

Response time is less than 3 minutes.

Permanent installation on pipeline.
Automatic testing of pipeline.
Preset threshold.
Single test to determine if pipeline is leaking.
Restricted flow to dispenser if leak is declared.

System must be checked annually and calibrated if necessary in accordance with
manufacturer's instructions.
 Marley Pump Co.
 5800 Foxridge Dr.
 Mission, KS 66202
 Tel: (913) 813-5700
                            Evaluator: Ken Wilcox Associates
                            Tel: (816) 443-2494

                            Date of Evaluation: 04/19/93
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                          Marley Pump Co.
                                                                              Revision Date: April 18,1997
 Certification:

 Leak Threshold:


 Applicability:

 Tank Capacity:


 Waiting Time:


 Test Period:




 Temperature:

 Water Sensor:



 Calibration:


 Comments:
                  Red Jacket ATM System,
             Version RLM 5000,5001, and 9000
                  (Magnetostrictive Probe)
           AUTOMATIC TANK GAUGING SYSTEM

Leak rate of 0.2 gph with PD=100% and PFA=0%.

0.1 gph. A leak is declared if the output of the measurement system equals or exceeds
this threshold.

Gasoline, diesel, aviation fuel, and solvents.

Maximum of 15,000 gallons.
Tank must be between 50 and 95% full.

Minimum of 6 hours between delivery and testing.
There must be no dispensing or delivery during waiting time.

Minimum of 3 hours.
Test data are acquired and recorded  by a computer.
Leak rate is calculated from all data collected.
There must be no dispensing or delivery during test,

Average for product is determined by a minimum of 5 temperature sensors.

Must be used to detect water ingress.
Minimum detectable water level in the tank is 1.04 inches.
Minimum detectable water level change is 0.011 inch.

Temperature sensors and probe must be checked and calibrated in accordance with
manufacturer's instructions.

Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
lower head pressure).  Consistent testing at low  levels could allow a leak to remain
undetected.                                                      i
EPA leak detection regulations require testing of the portion of  the tank system which
routinely contains product.
Marley Pump Co.
5800 Foxridge Dr.
Mission, KS 66202
Tel:  (913)813-5700
                           Evaluator: Ken Wilcox Associates
                           Tel: (816) 443-2494

                           Date of Evaluation: 04/02/91
                                                166
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
tha method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                         Mariey Pump Co.
                                                                            Revision Date%. Apn\ 18,1997
                 Sonic Technology (ST) 1400-1800 Series Tank Monitoring System
              ATG Automatic Tank Gauging Monitor, LLM Series Liquid Level Monitor
                                  FMS Fuel Management Monitor
                                        (Ultrasonic Probe)
                              AUTOMATIC TANK GAUGING SYSTEM
Certification:

Leak Threshold:

Applicability;

Tank Capacity:


Waiting Time:



Test Period:




Temperature:


Water Sensor:



Calibration:


Comments:
Leak rate of 0.2 gph with PD=100% and PFA=0%.

0.1 gph. A leak is declared if the output of the system equals or exceeds this threshold.

Gasoline, diesel, aviation fuel, and solvents.

Maximum of 18,000 gallons.
Tank must be between 50 and 95% full.

Minimum of 10 hours between delivery and testing.
None between dispensing and testing.
There must be no delivery during waiting time.

Minimum of 2 hours, 21 minutes.
Test data are acquired and recorded by a computer.
Leak rate is calculated from all data collected.
There must be no dispensing or delivery during test.

Average for product is determined by a variable number of temperature sensors
spaced at approximately 6-inch intervals.

Must be used to detect water ingress.
Minimum detectable water level in the tank is 0.112 inch.
Minimum detectable water level change is 0.011 inch.

Temperature sensors and probe must be checked and calibrated in accordance with
manufacturer's instructions.

Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
lower head pressure).   Consistent testing at low levels could allow a leak to  remain
undetected.
EPA leak  detection regulations require testing of the portion of the tank system which
routinely contains product.
System was previously known as LT1 Automatic Product Level Monitor and was
manufactured by Level Tech, Inc. (purchased by Mariey 9/91).
Mariey Pump Co.
5800 Foxridge Dr.
Mission, KS 66202
Tel: (913)813-5700
                             Evaluator: ADA Technologies
                             Tel: (303) 792-5615

                             Date of Evaluation: 09/30/92
                                                167
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                         Marley Pump Co.
                                                                             Revision Date: April 18,1997
                  Sonic Technology (ST) 1400-1800 Series Tank Monitoring System
               ATG Automatic Tank Gauging Monitor, LLM Series Liquid Level Monitor,
                                   FMS Fuel Management Monitor
                                        (Ultrasonic Probe)
                               AUTOMATIC TANK GAUGING SYSTEM
Marley Pump Co.
Certification:

Leak Threshold:
Applicability:

Tank Capacity:


Waiting Time:



Test Period:




Temperature:


Water Sensor:



Calibration:


Comments:
Leak rate of 0.1 gph with PD=99.9% and PFA=0.01%.

0.05 gph. A leak is declared if the output of the system equals or exceeds this
threshold.
                                                               I

Gasoline, diesel, aviation fuel, fuel oils #4 and #6, and some solvents.

Maximum of 18,000 gallons.
Tank must be between 95 and 100% full.

Minimum of 12 hours between delivery and testing.
None between dispensing and testing.
There must be no delivery during waiting time.

Minimum of 2 hours,.21 minutes.
Test data are acquired and recorded by a computer.
Leak rate is calculated from all data collected.
There must be no dispensing or delivery during test.

Average for product is determined by a variable number of temperature sensors
spaced at approximately 6-inch intervals.

Must be used to detect water ingress.
Minimum detectable water level.in the tank is 0.112 inch.
Minimum detectable water level change is 0.011 inch.

Temperature sensors and probe must  be checked and calibrated in accordance with
manufacturer's instructions.

Not evaluated using manifold tank systems.
Tests only portion of tank containing product.                       |
As product level is lowered, leak rate in  a leaking tank decreases (due to
lower head pressure).   Consistent testing at low levels could allow a leak to remain
undetected.
EPA leak detection regulations require testing of the portion of the tank system which
routinely contains product.
System was previously known as LT1 Automatic Product Level Monitor jand
was manufactured by Level Tech, Inc.  (purchased by Marley 9/91).
Marley Pump Co.
5800 Foxridge Dr.
Mission, KS 66202
Tel: (913)813-5700
                           Evaluator: ADA Technologies, Inc.
                           Tel: (303) 792-5615

                           Date of Evaluation: 09/25/92
                                               168
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                                                              Revision Date: April 18,1997
                                         Marley Pump Co.

                   Red Jacket PPM 4000 with Optical Liquid Discrimination Sensor

                             LIQUID-PHASE INTERSTITIAL DETECTOR


Detector:

Output type:               qualitative
Sampling frequency:       continuous
Operating principle:         optical sensor

Test Results:
                               unleaded      synthetic    diesel       heating
                               gasoline      fuel         fuel         oil #2           water
Accuracy (%)                   100          100         100         100             100

Response time (min)            2.19          2.20        1.93        2.23            2.81

Recovery time (min)            <1           < 1          < 1  '       < 1    -    -     < *

Product activation height (cm)    1.08          1.10        t.03        1.07            1.20

Lower detection limit (cm)        0.30          N/D**       N/D         N/D            N/D


*At a flow rate of 0.13 gal/hr in a 4.8 cm diameter test chamber.
** See glossary.

Specificity Results:
Activated: unleaded gasoline, diesel fuel, synthetic fuel, heating oil #2, water.

Manufacturer's specifications:
Manufacturer's instructions do not specify procedures or schedules for maintenance or calibration.

Comments:
EPA and many states require detection of  1/8 inch (0.32 cm) of product for groundwater monitoring.
Detector is listed as interstitial due to intended use.
Test procedures used were Carnegie Mellon Research Institute's "Test Procedures for Third Party Evaluation
of Leak Detection Methods: Point Sensor Liquid Contact Leak Detection Systems": Final Report - November
11,1991.
Evaluation lists all PPM, RLM, and ST models, including the Multiplexer Unit; however, evaluation procedures
were performed using model PPM 4000.
"Detector is reusable.
 Marley Pump Co.                                   Evaluator: Carnegie Mellon Research Institute
 9650AldenRd.                                    Tel: (412)268-3495
 Lenexa,KS66215
 Tel: (913) 541-2985                                Date of Evaluation: 04/28/92
                                                 169
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                      Mine Safety Appliances

                                             Tankgard
                                       P/N 481532 S/N 03095

                        VAPOR-PHASE OUT-OF-TANK PRODUCT DETECTOR
                                                                             Revision! Date: April 18,1997
Detector:

Output type:
Sampling frequency:
Operating principle:

Test Results:

Accuracy (%)
Detection time (sec)
Fall time (min:sec)
Lower detection limit (ppm)
quantitative
continuous
metal oxide semiconductor
                    benzene
                    100
                    5
                    04:12
                    12.5
2-methvlbutane
100
16
04:42
12.5
Specificity Results:
Activated (100%): benzene, n-butane, n-hexane, 2-methylpentane, toluene, isobutane.

Manufacturer's specifications:
Maximum Wire Distance:     500 ft using 18 AWG
Response Time:              30 seconds
Recover Time:               1 minute maximum
Sensor Life:                 2 year warranty
Mine Safety Appliances
P.O. Box427
Pittsburgh, PA 15230
Tel: (412) 776-8600
                     Evaluator: Carnegie Mellon Research Institution
                     Tel: (412) 268-3495

                     Date of Evaluation: 03/26/91
                                                170
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
 Detector:

 Output type:
 Sampling frequency:
 Operating principle:

 Test Results:
                                       Mine Safety Appliances

                                           Tankgard VIII
                                        P/N 488803 S/N 00389

                        VAPOR-PHASE OUT-OF-TANK PRODUCT DETECTOR
quantitative
continuous
metal oxide semiconductor
                                                                              Revision Date: April 18,1997
 Accuracy (%)
 Detection time (sec)
 Fall time (min:sec)
 Lower detection limit (ppm)
                  benzene
                  100
                  5
                  04:12
                  12.5
2-methvlbutane
100
16
04:42
12.5
 Specificity Results:
 Activated (100%): benzene, n-butane, n-hexane, 2-methylpentane, toluene, isobutane.

 Manufacturer's specifications:
 Maximum Wire Distance:      500 ft using 18 AWG.
 Response Time:              30 seconds.
 Recover Time:               1 minute maximum.
 Sensor Life:                  2 year warranty.
Mine Safety Appliances
P. O. Box 427
Pittsburgh,  PA 15230
Tel: (412) 776-8600
                     Evaluator: Carnegie Mellon Research Institution
                     Tel: (412) 268-3495

                     Date of Evaluation: 03/28/91
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:


Applicability:

Specification:



Pipeline Capacity:

Waiting Time:


Test Period:
Calibration:
                                                           Revision Date: April 18,1997
                  NDE Environmental Corp.

              Praline Test Series III, Version 1.0

              LINE TIGHTNESS TEST METHOD

Leak rate of 0.1 gph with PD=99.0% and PFA=0.1%.

0.05 gph. A leak is declared if the output of the measurement system equals or exceeds
this threshold.

Gasoline, diesel, aviation fuel, fuel oils #4 and #6, and solvents.

System tests fiberglass and steel pipelines.
Tests are conducted at 150% operating pressure.
Mechanical line leak detector must be removed from pipeline for duration of test.

Maximum of 41 gallons.

None between delivery and testing
Minimum of 1 hour between dispensing and testing.

Minimum of 1 hour.
Pipe deflection, vapor pockets, and large temperature differences may produce
inconsistent readings, testing to continue until stable conditions are present.
Test data are acquired and recorded manually.
Manual calculations are performed by the operator on site.

Sensors  must be calibrated before each test.
NDE Environmental Corp.
8906 Wall St., Suite 306
Austin, TX 78754
Tel: (800) 800-4633
                            Evaluator: Midwest Research Institute
                            Tel: (816) 753-7600

                            Date of Evaluation: 08/30/91
                                                 172
Appearance on tills list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
 Certification:

 Leak Threshold:


 Applicability:

 Specification:



 Pipeline Capacity:

 Waiting Time:


 Test Period:




 Calibration:
                                                          Revision Date: April 18, 1997
                 NDE Environmental Corp.

                          PTK-88

              LINE TIGHTNESS TEST METHOD

Leak rate of 0.1 gph with Po=99.8% and PFA=1 -3%.

0.05 gph. A leak is declared if the output of the measurement system equals or
exceeds this threshold.

Gasoline, diesel, aviation fuel, fuel oil, and solvents.

System tests fiberglass and steel pipelines.
Tests are conducted at 150% operating pressure.
Mechanical line leak detector must be removed from pipeline for duration of test.

Maximum of 40 gallons.

None between delivery and testing.
Minimum of 1 hour between dispensing and testing.

Minimum of 10 minutes. Repeat 10 minute cycles are necessary if data does not meet
the manufacturer's criteria.
Test data are acquired and recorded manually.
Manual calculations are performed by the operator on site.

Sensors must be calibrated before each test.
NDE Environmental Corp.
8906 Wall St., Suite 306
Austin, TX 78754
Tel: (800) 800-4633
                           Evaluator: Midwest Research Institute
                           Tel: (816) 753-7600

                           Date of Evaluation: 02/14/91
                                                 173
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:

Applicability:

Tank Capacity:

Waiting time:

Test Period:

Test Pressure:

Temperature:



Groundwater:



Comments:
                                                           Revision Date: April 18,1997
                   NDE Environmental Corp.

         UST Ullage Test - Version U2 (Pressure Test)

NON-VOLUMETRIC TANK TIGHTNESS TEST METHOD (ULLAGE)

  Leak rate of 0.1 gph with PD=95.24% and PFA=0%.

  A leak is declared when the pressure decay trend equals or exceeds ± 0.016 psi/hr.

  Gasoline, diesel, aviation fuel, heavy fuel oils #2 through #6, and solvents.

  Maximum ullage volume is 10,260 gallons.

  Minimum of 2 hours between delivery and testing.

  Minimum of 30 minutes (after data trend has been established).

  Total pressure of 4.0 psi must be applied at bottom of tank.

  Ullage must be monitored during test, and a correction factor is applied to
  account for temperature changes. If ullage temperature changes exceed 5 degrees
  F, test must not be conducted.                                    ;

  Depth to groundwater in backfill must be determined. If groundwater is above
  product level, net pressure must be maintained at a minimum of 1 psi in the
  ullage during test.

  Not evaluated using manifold tank systems.
  Evaluated using diesel fuel.
  Tests only ullage portion of tank.
  Product-filled portion of tank must be tested using a volumetric underfilled test method.
NDE Environmental Corp.
8906 Wall St., Suite 306
Austin, TX 78754
Tel: (800) 800-4633
                             Evaluator: ADA Technologies, Inc.
                             Tel: (303) 792-5615

                             Date of Evaluation: 04/10/92
                                                174
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
 Certification:

 Leak Threshold:


 Applicability:

 Tank Capacity:

 Waiting time:

 Test Period:


 Test Pressure:
Temperature:


Groundwater:




Comments:
                                                           Revision Date: April 18, 1997
                   NDE Environmental Corp.

              UTS-4T Ullage Test (Pressure Test)

NON-VOLUMETRIC TANK TIGHTNESS TEST METHOD (ULLAGE)

  Leak rate of 0.1 gph with PD=95!24% and PFA=0%.

  A leak is declared when the make-up gas flow rate into ullage equals or exceeds
  0.275 cubic feet/hour.

  Gasoline, diesel, aviation fuel, heavy fuel oil #4, and solvents.

  Maximum ullage volume is 7,500 gallons.

  Minimum of 2 hours between delivery and testing.

  Minimum of 20 minutes, consisting of 2 consecutive 10-minute test periods.
  Test data are acquired and  recorded manually.

  Pressure must be increased in ullage such that total pressure at
  bottom of tank does not exceed 5.0 psi.
  Pressure must be maintained for a minimum of 5 minutes per 1,000 gallons  of ullage.
  At conclusion of this stabilization period, ullage pressure must be reduced by 0.5 psi for
  remainder of test.

  Ullage must be monitored for rate of temperature  change, which must  not exceed
  manufacturer's tabulated values.

  Depth to groundwater in backfill must be determined.  If groundwater is above
  product level, net pressure must exceed 1 psi in the ullage during test.
  If this requires more than 5 psi total pressure at tank bottom, the ullage test must
  not be used.

  Not evaluated using manifold tank systems.
  Evaluated using diesel fuel.
  Tests only ullage portion of tank.
  Product-filled portion of tank must be tested using a volumetric underfilled test  method.
NDE Environmental Corp.
8906 Wall St., Suite 306
Austin, TX 78754
Tel: (800) 800-4633
                            Evaluator: Midwest Research Institute
                            Tel: (816) 753-7600

                            Date of Evaluation: 12/04/92
                                                175
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:


Applicability:

Tank Capacity:

Waiting Time:

Test Period:




Test Pressure:


Temperature:

Groundwater:
Comments:
                                                           Revision Date: April 18,1997
                   NDE Environmental Corp.

                        U3 Ullage Test
                  (Vacuum or Pressure Test)

NON-VOLUMETRIC TANK TIGHTNESS TEST METHOD (ULLAGE)

  Leak rate of 0.1 gph with PD=100% and PFA=0%.

  A leak is declared when the acoustic signal detected is different from the baseline.
  Baseline is the acoustic signal before tank is pressurized or evacuated.

  Gasoline, diesel, aviation fuel, fuel oils #4 and #6, waste oil, and solvents.

  Maximum ullage volume is 16,500 gallons.

  None between delivery and testing

  A few minutes to determine background noise and a leak.
  Depends on background noise at the  site and on the size of the leak.
  After the desired pressure has been reached, the tank should be allowed to settle
  for 10 minutes.

  Vacuum of 1 psi must be maintained in ullage by a vacuum blower, or total pressure
  at bottom of tank of 4 psi must be maintained using nitrogen.         ".

  Acoustic signal is independent of product temperature.

  Depth to groundwater in backfill must be determined. If groundwater is above
  product level, vacuum test should not be used.
  Pressure test may only be used if net pressure can be maintained at a minimum
  1 psi throughout ullage during test. If this requires more than 5 psi total
  pressure at tank bottom, the ullage test must not be used.

  Not evaluated using manifold tank systems.
  Evaluated using diesel fuel.
  Tests only ullage portion of the tank.
  Product-filled portion of tank must be tested with an underfilled test method.
  Microphone was 25 feet away from the leak source during evaluation.
  If background noise is too high, test is inconclusive.
  Noise signals are tape recorded (not digitally recorded).
  Vacuum test method may not be effective in some backfill (such as clay)
  because it may plug holes in tank.
  If soil is saturated with product, air or water ingress may not be declared
  by vacuum test. A well point  in backfill may help identify presence of this condition.
 NDE Environmental Corp.
 8906 Wall St., Suite 306
 Austin, TX 78754
 Tel: (800) 800-4633
                             Evaluator: Ken Wilcox Associates
                             Tel: (816) 443-2494

                             Date of Evaluation: 01/15/93
                                                176
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:


Applicability:


Tank Capacity:


Waiting Time:




Test Period:




Temperature:


Groundwater:
Calibration:

Comments:
                                                           Revision Date: April 18,1997
                  NDE Environmental Corp.

             Computerized VPLT Testing System

VOLUMETRIC TANK TIGHTNESS TEST METHOD (UNDERFILL)

    Leak rate of 0.1 gph with PD=99.9% and PFA=0.1%.

    0.05 gph. A leak is declared if the output of the measurement system equals or
    exceeds this threshold.

    Gasoline, diesel, aviation fuel, fuel oils #4 and #6, waste oil, solvents, and other
    products.

    Maximum of 18,000 gallons.
    Tank must contain minimum 24 inches of product.

    Must be long enough between delivery and testing to ensure a temperature
    change of less than 0.09 degrees F per hour, typically a minimum of 2 hours.
    None between dispensing and testing.
    There must be no delivery during waiting time.

    Minimum of 2  hours.
    Test data are acquired and recorded by a computer.
    Leak rate is calculated from average over data window.
    There must be no dispensing or delivery during test.

    Average for product is typically determined by 5 thermistors.
    A minimum of 1 thermistor is required.

    Depth to groundwater in backfill must be determined. If groundwater is above
    bottom of tank, product level must be adjusted to provide a minimum net pressure
    of 1 psi at bottom of tank during  test.  (There must be a difference of at least 37
    inches between groundwater level and product level to provide a net pressure of 1
    psi at bottom of tank during test.)

    Thermistors must be checked annually and calibrated if necessary.

    Not evaluated  using manifold tank systems.
    Tests only portion of tank containing product.
    As product level is lowered, leak rate in a leaking tank decreases (due to
    lower head pressure).  Consistent testing at low levels could allow a leak to remain
    undetected.
    EPA leak detection regulations  require testing of the portion of the tank system which
    routinely contains product.
NDE Environmental Corp.
8906 Wall St., Suite 306
Austin, TX 78754
Tel: (800) 800-4633
                            Evaluator: Ken Wilcox Assoc.
                            Tel: (816) 443-2494

                            Date of Evaluation: 02/15/93
                                                177
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:


Applicability:

Tank Capacity:


Waiting Time:



Test Period:




Temperature:



Groundwater:
Calibration:

Comments:
                                                          Revision Date: April 18,1997
                  NDE Environmental Corp.

         Sure Test - Assured Tight System, Series IV

VOLUMETRIC TANK TIGHTNESS TEST METHOD (UNDERFILL)

 Leak rate of 0.1 gph with PD=99.99% and PFA=0.005%.

 0.05 gph.  A leak is declared if the output of the measurement system equals or
 exceeds this threshold.

 Gasoline, diesel, aviation fuel, fuel oil, waste oil, and solvents.

 Maximum of 18,000 gallons.
 Tank must be between 11 and 95% full.

 Minimum of 6 hours between delivery and testing.
 None between dispensing and testing.
 There must be no delivery during waiting time.

 Minimum of 3 hours.
 Test data are acquired and recorded by a computer.
 Leak rate is calculated from average of subsets of all collected data.
 There must be no dispensing or delivery during test.                 ;

 Average for product is determined by temperature probes.
 A minimum 12 inches of product must be present for the temperature probes to
 operate properly.

 Depth to groundwater in backfill must be determined.  If groundwater is above
 bottom of tank, product level  must be adjusted during test to provide a minimum
 net pressure  of 1 psi at bottom of tank during test.  (There must be a difference of at
 least 37 inches between groundwater level and product level to provide a net pressure
 of 1 psi at bottom of tank during test.)

 Temperature probes and floats must be checked for proper operation prior to each test.

 Not evaluated using manifold tank systems.
 Tests only portion of tank containing product.
 As product level is lowered, leak rate in a leaking tank decreases (due to
 lower head pressure).  Consistent testing at low levels could  allow a leak to remain
 undetected.                                                    ;
 EPA leak detection regulations require testing of the portion of the tank system  which
 routinely contains product.
 NDE Environmental Corp.
 8906 Wall St., Suite 306
 Austin, TX 78754
 Tel: (800) 800-4633
                             Evaluaton ADA Technologies
                             Tel: (303) 792-5615

                             Date of Evaluation: 09/09/92
                                                 178
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                   Omntec/Electro Levels Mfg., Inc.
                                                                                Revision Date: April 18,1997
 Certification:

 Leak Threshold:


 Applicability:


 Tank Capacity:


 Waiting Time:


 Test Period:




 Temperature:

 Water Sensor:



 Calibration:


 Comments:
                             OEL 8000
                      (Magnetostrictive Probe)

               AUTOMATIC TANK GAUGING SYSTEM

Leak rate of 0.2 gph with PD=99.9% and PFA=0.1%.

0.1 gph. A leak is declared if the output of the measurement system equals or exceeds
this threshold.

Gasoline, diesel, aviation fuel, fuel oil #4, waste oil, and solvents.
Other liquids may be tested after consultation with the manufacturer.

Maximum of 15,000 gallons.
Tank must be between 50 and 95% full.

Minimum of 6 hours, 30 minutes between delivery and testing.
There must be no delivery during waiting time.

Minimum of 4 hours.
Test data are acquired and recorded by a computer.
Leak rate is calculated from data determined to be valid by statistical analysis.
There must be no dispensing or delivery during test.

Average for product is determined by a minimum of 5 thermistors.

Must be used to detect water ingress.
Minimum detectable water level in the tank is 0.055 inch.
Minimum detectable change in water level is 0.011 inch.

Thermistors and probe must be checked and calibrated in accordance with
manufacturer's instructions.

Not evaluated using manifold tank systems.
Tests only portion  of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
lower head  pressure).  Consistent testing  at  low levels could  allow a  leak to remain
undetected.
EPA leak detection regulations require testing of the portion of the tank system which routinely
contains product.
Omntec/Electro Levels Mfg., Inc.
1993 Pond Rd.
Ronkonkoma, NY  11779
Tel:  (516)981-2001
                               Evaluator: Ken Wilcox Associates
                               Tel: (816) 443-2494

                               Date of Evaluation: 01/17/96
                                                 179
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
 Certification:

 Leak Threshold:


 Applicability:


 Tank Capacity:


 Waiting Time:


 Test Period:




 Temperature:

 Water Sensor:



 Calibration:


 Comments:
                                                               Revision Date: April 18,1997
                  Omntec/Electro Levels Mfg., Inc.

                             OEL8000
                      (Magnetostrictive Probe)

               AUTOMATIC TANK GAUGING SYSTEM

 Leak rate of 0.1 gph with Po=97.8% and PFA=2.2%.

 0.05 gph. A leak is declared if the output of the measurement system equals or exceeds
 this threshold.

 Gasoline, diesel, aviation fuel, fuel oil #4, waste oil, solvents.
 Other liquids may be tested after consultation with the manufacturer.

 Maximum of 15,000 gallons.
 Tank must be between 50 and 95% full.

 Minimum of 6 hours, 30 minutes between delivery and testing.
 There must be no delivery during waiting time.

 Minimum of 4 hours.
 Test data are acquired and recorded by a computer.
 Leak rate is calculated from data determined to be valid by statistical analysis.
 There must be no dispensing or delivery during test.

 Average for product is determined by a minimum of 5 thermistors.

 Must be used to detect water ingress.
 Minimum detectable water level in the tank is 0.055 inch.
 Minimum detectable change in water level is 0.011  inch.

Thermistors and probe must be checked and calibrated in accordance with
 manufacturer's instructions.

 Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to    '
 lower head pressure).  Consistent testing  at low  levels could allow a leak to  remain
undetected.                                                          '
 EPA leak detection regulations require testing of the portion of the tank system which routinely
contains product.                                                     ;
Omntec/Electro Levels Mfg., Inc.
1993 Pond Rd.
Ronkonkoma, NY 11779
Tel:  (516)981-2001
                               Evaluator: Ken Wilcox Associates
                               Tel: (816) 443-2494

                               Date of Evaluation: 01/17/96
                                                 180
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                                            Revision Date: April 18,1997
 Detector:

 Output type:
 Sampling frequency:
 Operating principle:

 Test Results:
 Accuracy (%)

 Detection time (sec)
 Fall time (sec)

 Lower detection limit (cm)
 Accuracy (%)

 Detection time (sec)
 Fall time (sec)

 Lower detection limit (cm)
 Accuracy {%)

 Detection time (sec)
 Fall time (sec)

 Lower detection limit (cm)
                                         Omntec/Electro Levels Mfg., Inc.

                                 L-LL-R-1, LS-ASC, PDS-ASC, PDWS-1, PDWF-1

                                   LIQUID-PHASE INTERSTITIAL DETECTOR
 qualitative
 continuous
 all: refractive index of liquids; PDS-ASC, PDWS-1, and PDWF-1: also electrical conductivity
                                           L-LL-R-1 (low level)
unleaded
gasoline
100
6.63

unleaded
gasoline
100
1.93

unleaded
gasoline
100
diesel fuel
100
6.53
PDWS-1
diesel fuel
100
1.85
PDS-ASC/LS-ASC
diesel fuel
100
water
100
6.45

water
100
1.63

water
100
                                                                                        L-LL-R-1 (high level)
                                                 unleaded
                                                 gasoline    diesel fuel   water
                                                 100        100         100
                                                 21.7        21.8        21.7

                                                               PDWF-1	
                                                 unleaded
                                                 gasoline     diesel fuel   water
                                                 100         100         100
                                                                               1.60
                                                                                           1.67
                                                                                                      1.02
2.24
              2.11
                             1.42
Specificity Results:
Activated: unleaded gasoline, synthetic gasoline, n-hexane, diesel fuel, jet-A fuel, toluene, xylene(s), water.

Manufacturer's specifications:
LS and PD series responds to any liquid with an index of refraction different than air. PD series responds to any conducting liquid.

Comments:
EPA and many states require detection of 1/8 inch (0.32 cm) of product for groundwater monitoring.
Detectors are listed as interstitial due to intended use.
Test procedures used were modified from EPA's "Standard Test Procedures for Evaluating Leak Detection Methods- Liquid-Phase Out-
of-Tank Product Detectors," March 1990, and EPA's "Standard Test Procedures for Evaluating Leak Detection Methods-  Non-
Volumetric Tank Tightness Test Methods," March 1990.
Detector is reusable.
Omntec/Electro Levels Mfg., Inc.
1993 Pond Rd.
Ronkonkoma, NY 11779
Tel: (516) 467-5787
                              Evaluator: Ken Wilcox Associates
                              Tel: (816) 443-2494

                              Date of Evaluation: 06/12/93
                                                        181
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                             Revision Date: April 18,1997
                                          One Plus Corp.

                                            Leak Edge
                                    Models 100-3001,100-4001

                        LIQUID-PHASE OUT-OF-TANK PRODUCT DETECTOR

Detector:

Output type:               qualitative
Sampling frequency:        continuous
Operating principle:         product permeable

Test Results:
                                           unleaded                      synthetic
                                           gasoline                      gasoline
Accuracy (%)                               100                           100
Detection time (hnmin:sec)                   00:05:41                      00:05:14
Fall time (hnmin:sec)                        00:30:39                      00:18:36
Lower detection limit (cm)                    0,02                          0.02

Specificity Results:
Activated: unleaded gasoline, synthetic gasoline, n-hexane, diesel fuel, jet-A fuel, toluene, xylene(s).

Manufacturer's specifications:
Operating temperatures: Sensor is -40 degrees C to 74 degrees C; Monitor Module is -20 degrees C to 49
degrees C.

Comments:
EPA and many states require detection of 1/8 inch (0.32 cm) of product for groundwater monitoring.
Detector is reusable.
One Plus Corp.                                  Evaluator: Underwriters Laboratories Inc.
1955 ShermerRd., Suite 100                      Tel: (847) 272-8800
Northbrook, IL 60062
Tel: (708) 498-0955                              Date of Evaluation: 12/17/91



                                                182
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
 Certification:

 Leak Threshold:


 Applicability:


 Tank Capacity:


 Waiting Time:


 Test Period:




 Temperature:


 Water Sensor:



 Calibration:


 Comments:
                                                            Revision Date: April 18,1997
    Patriot Sensors and Controls Corp. (formerly MagneTek)

                    7021 Digital Tank Gauge
              (7030 Series Magnetostrictive Probe)

             AUTOMATIC TANK GAUGING SYSTEM

 Leak rate of 0.2 gph with PD = 99.96% and PFA = 0.044%.

 6.1 gph. A leak is declared if the output of the measurement system equals or exceeds
 this threshold.

 Gasoline, diesel, aviation fuel, fuel oil #4, waste oil, solvents and other substances with a
 specific gravity >0.6 and a viscosity <1500 cp.

 Maximum of 15,000 gallons.
 Tank must be between 50 and 95% full.

 Minimum of 2 hours between delivery and testing.
 There must be no dispensing or delivery during watting time.

 Minimum of 4 hours.
 Test data are acquired and recorded by a 7021 controller (computer).
 Leak rate calculated from data determined to be statistically valid.
 There must be no dispensing or delivery during test.

 Average for product is determined by a minimum of 1 resistance temperature
 detector (RTD).

 Must be used to detect water ingress.
 Minimum detectable water level in the tank is 0.947 inch.
 Minimum detectable water level change is 0.0254 inch.

 RTD and probe must be checked and calibrated in accordance with
 manufacturer's instructions.

 Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
lower head pressure).   Consistent  testing at low levels could allow a leak to remain
undetected.
EPA leak detection regulations require testing of the portion of the tank system which
routinely contains product.
System may also be used to test at a minimum product height of 18 inches or a 14%
full tank, whichever is higher, if the leak rate is set at 0.1  gallons per hour
(PD = 95.34% and PFA = 4.66%).
Patriot Sensors and Controls Corp.
1080 N. Crooks Rd.
Clawson, Ml  48017-1097
Tel:  (810)435-0700
                             Evaluator: Ken Wilcox Associates
                             Tel: (816) 443-2494

                             Date of Evaluation: 02/07/91
                                                183
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:


Applicability:


Tank Capacity:


Waiting Time:


Test Period:




Temperature:


Water Sensor:



Calibration:


Comments:
                                                         Revision Date: April 18,1997
  Patriot Sensors and Controls Corp. (formerly MagneTek)

                 7021 Digital Tank Gauge
           (7030 Series Magnetostrictive Probe)

          AUTOMATIC TANK GAUGING SYSTEM

Leak rate of 0.1 gph with PD = 95.34% and PFA = 4.66%.

0.05 gph.  A leak is declared if the output of the measurement system
equals or exceeds this threshold.

Gasoline, diesel, aviation fuel, fuel oil #4, waste oil, solvents and other substances with
a specific gravity >0.6 and a viscosity <1500 cp..

Maximum of 15,000 gallons.
Tank must be between 50 and 95% full.

Minimum of 8 hours between delivery and testing.
There must be no dispensing or delivery during waiting time.

Minimum of 4 hours.
Test data are acquired and recorded by a 7021 controller (computer).
Leak rate calculated from data determined to be statistically valid.
There must be no dispensing or delivery during test.

Average for product is determined by a minimum of 1 resistance temperature
detector (RTD).

Must be used to detect water ingress.
Minimum detectable water level in the tank is 0.947 inch.
Minimum detectable water level change is 0.0254 inch.

RTD and probe must be checked and calibrated in accordance with
manufacturer's instructions.

Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
lower head pressure). Consistent testing at low levels  could allow a leak  to remain
undetected.                                                     i
EPA leak detection regulations require testing of the portion of the tank system which
routinely contains product.                                         ;
System may also be used to test a minimum product height of 18 inches or a 14% full
tank, whichever is higher, if leak rate is set at 0.1 gph.
 Patriot Sensors and Controls Corp.
 1080 N. Crooks Rd.
 Clawson.MI  48017-1097
 Tel:  (810)435-0700
                            Evaluator: Ken Wilcox Associates
                            Tel: (816) 443-2494

                            Date of Evaluation: 02/07/91
                                                 184
 ADoaarance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 thernethod or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                       Patriot Sensors and Controls Corp. (formerly MagneTek)
                                                                              Revision Date: April 18, 1997
Certification:

Leak Threshold:


 Applicability:


Tank Capacity:


Waiting Time:



Test Period:




Temperature:

Water Sensor:



Calibration:


Comments:
                    7021 Digital Tank Gauge
              (7100 Series Magnetostrictive Probe)

             AUTOMATIC TANK GAUGING SYSTEM

Leak rate of 0.2 gph with PD = 99.9% and PFA = 0.1 %.

0.1 gph. A leak is declared if the output of the measurement system equals or exceeds
this threshold.

Gasoline, diesel, aviation fuel, fuel oil #4, waste oil, solvents, and other
substances with a specific gravity > 0.6 and a viscosity < 1500 cp.

Maximum of 15,000 gallons.
Tank must be between 50 and 95% full.

Minimum of 2 hours between delivery and testing.
Minimum of 2 hours between dispensing and testing.
There must be no dispensing or delivery during waiting time.

Minimum of 2 hours.
Test data are acquired and recorded by a computer.
Leak rate calculated from data determined to be valid by statistical analysis.
There must be no dispensing or delivery during test.

Average for product is determined by a minimum of 5 thermistors.

Must be used to detect water ingress.
Minimum detectable water level in the tank is 0.186 inch.
Minimum detectable water level change is 0.0048 inch.

Thermistors and probe must be checked and calibrated in accordance with
manufacturer's instructions.

Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
lower head pressure).  Consistent testing at low levels could allow a leak to remain
undetected.
EPA leak detection regulations require testing of the portion of the  tank system which
routinely contains product.
Patriot Sensors and Controls Corp.
1080 N. Crooks Rd.
Clawson, Ml  48017-1097
Tel:  (810)435-0700
                             Evaluator: Ken Wilcox Associates
                             Tel: (816) 443-2494

                             Date of Evaluation: 03/14/95
                                                185
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:


Applicability:


Tank Capacity:


Waiting Time:



Test Period:




Temperature:

Water Sensor:



Calibration:


Comments:
                                                           Revision Date: April 18,1997
    Patriot Sensors and Controls Corp. (formerly MagneTek)

                    7021 Digital Tank Gauge
             (7100 Series Magnetostrictive Probe)

            AUTOMATIC TANK GAUGING SYSTEM

Leak rate of 0.1 gph with PD = 99.6% and PFA = 0.4%.

0.05 gph. A leak is declared if the output of the measurement system equals or exceeds
this threshold.

Gasoline, diesel, aviation fuel, fuel oil #4, waste oil, solvents and other substances with a
specific gravity >0.6 and a viscosity <1500 cp solvents.

Maximum of 15,000 gallons.
Tank must be between 50 and 95% full.

Minimum of 2 hours between delivery and testing.
Minimum of 2 hours between dispensing and testing.
There must be no dispensing or delivery during waiting time.

Minimum of 6 hours.
Test data are acquired and recorded by a computer.
Leak rate calculated from data determined to be valid by statistical analysis.
There must be no dispensing or delivery during test.

Average for product is determined by a minimum of 5 thermistors.

Must be used to detect water ingress.
Minimum detectable water level in the tank is 0.186 inch.
Minimum detectable water level change is 0.0048 inch.

Thermistors and probe must be checked and calibrated in accordance with
manufacturer's instructions.

Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
lower head  pressure).  Consistent testing at low levels could allow  a leak  to remain
undetected.
EPA leak detection regulations require testing of the portion of the tank system which
routinely contains product.
Patriot Sensors and Controls Corp.
1080 N. Crooks Rd.
Clawson, Ml  48017-1097
Tel:  (810)435-0700
                             Evaluator: Ken Wilcox Associates
                             Tel: (816) 443-2494

                             Date of Evaluation: 03/14/95
                                                186
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                            Revision Date: April 18,1997

                                            PermAlert
                              PAL-AT Models AT20C, AT50C, AT40K
                                        AGW Sensor Cable

                       LIQUID-PHASE OUT-OF-TANK PRODUCT DETECTOR
Detector:
Output type:              qualitative
Sampling frequency:       continuous
Operating principle:        impedance change


TestResults:*                        	un|eaded gasoline
                                       1/3 MER            2/3 MER
                                       1348ft.             2644 ft.
Accuracy (%)                           100                ^00
Response time (min)                    9-92               °-*°
Recovery time (min)                     1-0                 i-O
Product activation height (cm)            2.03               i.iJ
Detection length (cm)                   116.3              64.8
Lower detection  limits (cm)
     Product activation height            N/D**              N/D              51
     Detection length                   N/D               N/D              295.6

*At a flow rate of 0.14 gal/hr in test chamber.
** See glossary.

Specificity Results:
Activated: diesel fuel, synthetic fuel, heating oil #2, water.


 EPA TrS'many states require detection of 1/8 inch (0.32 cm) of product for groundwater monitoring.

 ^o^^s^eSc^^^on Research .nstitute's "Test Procedures for Third Party Evaiuation
 of Leak Detection Methods: Cable Sensor Liquid Contact Leak Detection Systems": Fmal Report - November
 11,1991.
 Evaluation also  covered quantitative leak location.
 Detector is reusable.
                                                 Evaluaton Carnegie Mellon Research Institute
  772NLehighAve.                             Tel: (412)268-3495

                                                 Date of Evasion: 01/17/92
                                                  187
                 list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
                     SpmeTshouW be installed and operated in accordance with all applicable laws and regulations.

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                                                                              Revision Date: April 18,1997
                                             PermAlert

                               PAL-AT Models AT20C, AT50C, AT40K
                         with PHFW Hydrocarbon Probe and Type 1 Sensor

                        LIQUID-PHASE OUT-OF-TANK PRODUCT DETECTOR

Detector:

Output type:               qualitative
Sampling frequency:       continuous
Operating principle:        product soluble

Test Results:
                                            unleaded                              synthetic
                                            gasoline                              gasoline
Accuracy (%)                                100                                  100
Detection time (min:sec)                      00:24                                 00:09
Fall time (min:sec)                           N/A*                                  N/A
Lower detection limit (cm)                     0.01                                  0.01

* See glossary.

Specificity Results:
Activated: unleaded gasoline, synthetic gasoline, n-hexane, diesel fuel, jet-A fuel, toluene, xylene(s).

Manufacturer's specifications:
Operating temperature range is 0 degrees F to 90 degrees F.

Comments:
EPA and many states  require detection of 1/8 inch (0.32 cm) of product for groundwater monitoring.
Detector is not reusable; sensor filament must be replaced after contact with hydrocarbons.
PermAlert                                      Evaluaton Carnegie Mellon Research Institute
7720 N. Lehigh Ave.                             Tel: (412) 268-3495
Miles, IL 60714-3491
Tel: (708) 966-2190                             Date of Evaluation: 09/15/92
                                                188                                 ;
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                             Revision Date: April 18,1997
                                            PermAiert

                               PAL-AT Models AT20C, AT50C, AT40K
                         with PHFW Hydrocarbon Probe and Type 2 Sensor

                        LIQUID-PHASE OUT-OF-TANK PRODUCT DETECTOR

Detector:

Output type:               qualitative
Sampling frequency:        continuous
Operating principle:         product soluble

Test Results:
                                          unleaded                      synthetic
                                          gasoline                      gasoline
Accuracy (%)                              100                          100
Detection time (min:sec)                    14:39                         08:45
Fall time (min:sec)                         N/A*                          N/A
Lower detection limit (cm)                   0.01                          0.01

* See glossary.

Specificity Results:
Activated: unleaded gasoline, synthetic gasoline, n-hexane, diesel fuel, jet-A fuel, toluene, xylene(s).

Manufacturer's specifications:
Operating temperature range is 0 degrees F to 90 degrees F.

Comments:
EPA and many states require detection of 1/8 inch (0.32 cm) of product for groundwater monitoring.
Detector is not reusable.
Sensor filament must be replaced after contact with hydrocarbons.
 PermAiert                                      Evaluator: Carnegie Mellon Research Institute
 7720 N. Lehigh Ave.                             Tel: (412) 268-3495
 Miles, IL 60714-3491
 Tel: (708)966-2190                             Date of Evaluation: 09/15/92



                                                 189
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                              Revision Date: April 18,1997
                                             PermAlert

                               PAL-AT Models AT20C, AT50C, AT40K
                                      PHL Hydrocarbon Sensor

                              LIQUID-PHASE INTERSTITIAL DETECTOR

Detector:

Output type:               qualitative
Sampling frequency:       continuous
Operating principle:        electrical conductivity

Test Results:
                                     unleaded
                                     gasoline
Accuracy (%)                         100
Response time (min)                  1.13
Recovery time (min)                  8.83
Product activation height (cm)          0.53
Lower detection limit (cm)              0.38

•At a flow rate of 0.13 gal/hr in a 4.8 cm diameter test chamber.

Specificity Results:
Activated: diesel fuel, synthetic fuel, heating oil #2.
Not activated: water.

Comments:
Test procedures used were Carnegie Mellon Research Institute's "Test Procedures for Third Party
Evaluation of Leak Detection Methods: Point Sensor Liquid Contact Leak Detection Systems":'
Final Report - November 11,1991.
Detector is reusable.
PermAlert                                      Evaluator: Carnegie Mellon Research Institute
7720 N. Lehigh Ave.                             Tel: (412) 268-3495                   ,
Niles, IL 60714-3491
Tel: (708) 966-2190                             Date of Evaluation: 02/05/92
                                                190                          ,
Appearance on this list Is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                             Revision Date: April 18,1997
                                            PermAiert
                               PAL-AT Models AT20C, AT50C, AT40K
                                  TFH Hydrocarbon Sensor Cable

                       LIQUID-PHASE OUT-OF-TANK PRODUCT DETECTOR

Detector:

Output type:              qualitative
Sampling frequency:       continuous
Operating principle:        impedance change

Test Results:
                                   	unleaded  gasoline	
                                     1/3 MER          2/3 MER         MER
                                     1368ft.           2685 ft.          4046 ft.
Accuracy (%)                         100              100             100,
Response time (min)                   3.40              7.48             16.21
Recovery time (min)                   >60              >60             >60
Product activation height (cm)           0.65              1.33             3.53
Detection length (cm)                  27.7              56.8             150.4
Lower detection limits (cm)
     Product act. height                N/D**             N/D             3.6
     Detection length                  N/D              N/D             152.9

*At a flow rate of 0.16 gal/hr in test chamber.
** See glossary.

Specificity Results:
Activated: diesel fuel, synthetic fuel, heating oil #2.
Not Activated: water.

Comments:
EPA and many states require detection of 1/8 inch (0.32 cm) of product for groundwater monitoring.
System can monitor interstitial spaces.
Test procedures used were Carnegie Mellon Research Institute's "Test Procedures for Third Party Evaluation
of Leak Detection Methods: Cable Sensor Liquid Contact Leak Detection Systems": Final Report - November
11,1991.
Evaluation also covered quantitative leak location.
PermAiert                                    Evaluaton Carnegie Mellon Research Institute
7720 N. Lehigh Ave.                           Tel: (412) 268-3495
NilesJL 60714-3491
Tel: (708) 966-2190                           Date of Evaluation: 02/11/92


                                                191
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                                                             Revision Date: April 18,1997
                                             PermAlert

                                 TankWatch Models PHM10, PHMS
                              Combination Hydrocarbon/Water Probe

                             LIQUID-PHASE INTERSTITIAL DETECTOR

Detector:

Output type:               qualitative
Sampling frequency:        continuous
Operating principle:         electrical conductivity

Test Results:"
                                    unleaded
                                    gasoline                 water
Accuracy (%)                        100                      100                        ,          .
Response time (min)                 0.30                     <1
Recovery time (min)                  1.97                     1.68
Product activation height (cm)         0.18                     0.80
Lower detection limit (cm)             0.56                     1.93

*At a flow rate of 0.13 gal/hr in a 4.8 cm diameter test chamber.

Specificity Results:
Activated: diesel fuel, synthetic fuel, heating oil #2.

Comments:
Test procedures used were Carnegie Mellon Research Institute's "Test Procedures for Third Party
Evaluation of Leak Detection Methods: Point Sensor Liquid Contact Leak Detection Systems":
Final Report - November 11,1991.
Detector is reusable.
PermAlert                                       Evaluator: Carnegie Mellon Research Institute
7720 N. Lehigh Ave.                              Tel: (412) 268-3495
NilesJL 60714-3491
Tel: (708) 966-2190                              Date of Evaluation: 06/16/92



                                                192
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the maihod or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                              Revision Date: ApriUB, 1997
                                             PermAlert

                                 TankWatch Models PHM10, PHMS
                                        Hydrocarbon Probe

                             LIQUID-PHASE INTERSTITIAL DETECTOR

Detector:

Output type:               qualitative
Sampling frequency:        continuous
Operating principle:        electrical conductivity

Test Results:
                                         unleaded
                                         gasoline
Accuracy (%)                             100
Response time (min)                      0.25
Recovery time (min)                       2.33
Product activation height (cm)              0.17
Lower detection limit (cm)                  0.38

*At a flow rate of 0.14 gal/hr in a 4.8 cm diameter test chamber.

Specificity Results:
Activated: diesel fuel, synthetic fuel, heating oil #2.
Not activated: water.

Comments:
Test procedures used were Carnegie Mellon Research Institute's "Test Procedures for Third Party
Evaluation of Leak Detection Methods: Point Sensor Liquid Contact Leak Detection Systems":
Final Report - November 11,1991.
Detector is reusable.
PermAlert                                      Evaluator: Carnegie Mellon Research Institute
7720 N. Lehigh Ave.                             Tel: (412) 268-3495
Niles, IL 60714-3491
Tel: (708) 966-2190                             Date of Evaluation: 06/16/92
                                                193
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                            Petro Vend, Inc.
                                                                                Revision Date: April 18,1997
 Certification:

 Leak Threshold:


 Applicability:

 Tank Capacity:


 Waiting Time:


 Test Period:




 Temperature:


 Water Sensor:



 Calibration:


 Comments:
                      Petrosonic III
 (Version 4.05 Model 613,4 inch, Magnetostrictive Probe)

         AUTOMATIC TANK GAUGING SYSTEM

 Leak rate of 0.2 gph with PD=99.07% and PFA=0.93%.

 0.1 gph. A leak is declared if the output of the measurement system
 equals or exceeds this threshold.

 Gasoline, diesel, aviation fuel, and solvents.

 Maximum of 15,000 gallons.
 Tank must be between 50 and 95% full.

 Minimum of 12 hours between delivery and testing.
 There must be no dispensing or delivery during waiting time.

 Minimum of 4 hours.
 Test data are acquired and recorded by a computer.
 Leak rate is calculated as the difference between the first and last data collected.
 There must be no dispensing or delivery during test.

Average for product is determined by a minimum of 5 resistance temperature
detectors (RTDs).                                               i

 Must be used to  detect water ingress.
 Minimum detectable water level in the tank is 0.92 inch.
 Minimum detectable change in water level is 0.02 inch.

 RTDs and probe must be checked and calibrated in accordance
 with manufacturer's instructions.

 Not evaluated  using manifold tank systems.
 Tests only portion of tank containing product.
 As product level  is lowered, leak rate in a leaking tank decreases (due to
 lower head pressure).  Consistent testing at low levels  could allow a leak to remain
 undetected.
 EPA leak detection regulations require testing of the  portion of the tank system which
 routinely contains product.
 Petrosonic III version 4.04 is an older model automatic tank gauging system,
 which is no longer being manufactured.
Petro Vend, Inc.
6900 Santa Fe Dr.
Hodgkins, IL 60525-9909
Tel: (708) 485-4200
                       Evaluator: Underwriters Laboratories, Inc.,
                       Tel: (847) 272-8800

                       Date of Evaluation: 11/04/94
                                                 194
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:


Applicability:

Tank Capacity:


Waiting Time:


Test Period:




Temperature:


Water Sensor:



Calibration:


Comments:
                                                        Revision Date: April 18,1997
                    Petro Vend, Inc.

              Site Sentinel Model II and III
       (Model 613,2 inch, Magnetostrictive Probe)

         AUTOMATIC TANK GAUGING SYSTEM
                 
-------
                                            Petro Vend, Inc.
                                                                                Revision Date: April 18,1997
 Certification:

 Leak Threshold:


 Applicability:

 Tank Capacity:


 Waiting Time:


 Test Period:




 Temperature:


 Water Sensor:



 Calibration:


 Comments:
               Site Sentinel Model II and III,
       (Model 613,4 inch, Magnetostrictive Probe)

         AUTOMATIC TANK GAUGING SYSTEM

 Leak rate of 0.2 gph with PD=99.82% and PFA=0.18%.

 0.1 gph. A leak is declared if the output of the measurement system
 equals or exceeds this threshold.

 Gasoline, diesel, aviation fuel, and solvents.

 Maximum of 15,000 gallons.
 Tank must be between 50 and 95% full.

 Minimum of 12 hours between delivery and testing.
 There must be no dispensing or delivery during waiting time.

 Minimum of 2  hours.
 Test data are acquired and recorded by a computer.
 Leak rate is calculated as the difference between the first and last data collected.
 There must be no dispensing or delivery during test.

Average for product is determined by a minimum of 5 resistance temperature
detectors (RTDs).

 Must be used to detect water ingress.
 Minimum detectable water level in the tank is 0.92 inch.
 Minimum detectable change in water level is 0.02 inch.

 RTDs and probe must be checked and  calibrated in accordance
 with manufacturer's instructions.

 Not evaluated  using manifold tank systems.
 Tests only portion of tank containing product.
 As productlevel is lowered, leak rate in  a leaking tank decreases (due to
 lower head pressure).  Consistent testing at low levels could allow a leak to remain
 undetected.
 EPA leak detection regulations require  testing of the  portion of the tahk system which
 routinely contains product.
Petro Vend, Inc.
6900 Santa Fe Dr.
Hodgkins, IL 60525-9909
Tel: (708) 485-4200
                       Evaluator: Underwriters Laboratories, Inc.,
                       Tel: (847) 272-8800

                       Date of Evaluation: 11704/94
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
tha method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:


Applicability:

Tank Capacity:


Waiting Time:


Test Period:




Temperature:


Water Sensor:



Calibration:,


Comments:
                                                        Revision Date: April 18,1997
                    Petro Vend, Inc.

              Site Sentinel Model II and III,
       (Model 613,4 inch, Magnetostrictive Probe)

         AUTOMATIC TANK GAUGING SYSTEM

 Leak rate of 0.1 gph with PD=99.95% and PFA=0.35%.

 0.06 gph.  A leak is declared if the output of the measurement system
 equals or exceeds this threshold.

Gasoline, diesel, aviation fuel, and solvents.

Maximum of 15,000 gallons.
Tank must be minimum 90% full.

Minimum of 12 hours between delivery and testing.
There must be no dispensing or delivery during waiting time.

Minimum of 4 hours.
Test data are acquired and recorded by a computer.
Leak rate is calculated as the difference between the first and last data collected.
There must be no dispensing or delivery during test.

Average for product is determined by a minimum of 5 resistance temperature
detectors (RTDs).

Must be used to detect water ingress.
Minimum detectable water level in the tank is 0.92 inch.
Minimum detectable change in water level is 0.02 inch.

RTDs and probe must be checked and calibrated in accordance
with manufacturer's instructions.

Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
lower  head pressure).  Consistent testing at low levels could allow a leak to remain
undetected.
EPA leak detection regulations require testing of the portion of the tank system which
routinely contains product.
Petro Vend, Inc.
6900 Santa Fe Dr.
Hodgkins, IL 60525-9909
Tel: (708) 485-4200
                        Evaluator: Underwriters Laboratories, Inc.,
                        Tel: (847) 272-8800

                        Date of Evaluation: 11/04/94
                                                 197
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                              Revision Date: April 18,1997
                                          Petro Vend, Inc.

                             Petrosentry IV, Petrosentry VIII, SiteSentinel
                                           Liquid Sensor

                              LIQUID-PHASE INTERSTITIAL DETECTOR

Detector:

Output type:               qualitative
Sampling frequency:       continuous
Operating principle:        thermal conductivity

Test Results:
                                          unleaded
                                          gasoline
Accuracy (%)                              100
Response time (min)                       0.51
Recovery time (min)                        <1
Product activation height (cm)               0.35
Lower detection limit (cm)                   0.76

*At a flow rate of 0.14 gal/hr in a 4.8 cm diameter test chamber.

Specificity Results:
Activated: diesel fuel, synthetic fuel, heating oil #2, water.

Comments:
Test procedures used were Carnegie Mellon Research Institute's "Test Procedures for Third Party
Evaluation of Leak Detection Methods: Point Sensor Liquid Contact Leak Detection Systems":
Rna! Report -November 11,1991.
Detector is reusable.
Petro Vend, Inc.                                 Evaluator Carnegie Mellon Research Institute
6900 Santa Fe Dr.                               Tel: (412) 268-3495
Hodgkins, IL 60525-9909
Tel: (708) 485-4200                              Date of Evaluation: 10/15/92
                                                 198
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                              Revision Date: April 18,1997
                                          Petro Vend, Inc.

                             Petrosentry IV, Petrosentry VIII, SiteSentinel
                                     Universal Reservoir Sensor

                              LIQUID-PHASE INTERSTITIAL DETECTOR

Detector:

Output type:               qualitative
Sampling frequency:       continuous
Operating principle:        float switch

Test Results:
                                 50 wt% Ethvlene glvcol in water      30 wt% Calcium chloride in water
                                 Up            Down               Up
Accuracy (%)                     100           100                 100
Response time (min)              19.62         16.86        •       17.77
Recovery time (min)              <1            <1                  <1
Product activation height (cm)      20.9          5.90                20.5

*At a flow rate of 0.21 gal/hr in test chamber.

Specificity Results:
Not applicable

Comments:
Intended to monitor level of either ethylene glycol or calcium chloride solutions in the interstitial or annular
space of a double-walled tank.
Activates an alarm if any significant gain or loss of solution occurs.
Test procedures used were modified by evaluator from Carnegie Mellon Research Institute's "Test Procedures
for Third Party Evaluation of Leak Detection  Methods: Point Sensor Liquid Contact Leak Detection
Systems": Final Report - November 11,1991.
Detector is reusable.
Petro Vend, Inc.                                 Evaluaton Carnegie Mellon Research Institute
6900 Santa Fe Dr.                               Tel: (412) 268-3495
Hodgkins, IL 60525-9909
Tel: (708) 485-4200                              Date of Evaluation: 10/15/92
                                                 199
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                              Revision Date: April 18,1997
                                          Petro Vend, Inc.

                             Petrosentry IV, Petrosentry VIII, SiteSentinel
                                       Universal Sump Sensor

                              LIQUID-PHASE INTERSTITIAL DETECTOR

Detector:

Output type:               qualitative
Sampling frequency:       continuous
Operating principle:        float switch

Test Results:
                                unleaded
                                gasoline
Accuracy (%)                    100
Response time (min)             8.32
Recovery time (min)              <1
Product activation height (cm)     3.37
Lower detection limit (cm)         3.97

*At a flow rate of 0.20 gal/hr in a 7.8 cm diameter test chamber.

Specificity Results:
Activated: diesel fuel, synthetic fuel, heating oil #2, water.

Comments:
Test procedures used were Carnegie Mellon Research Institute's 'Test Procedures for Third Party
Evaluation of Leak Detection Methods: Point Sensor Liquid Contact Leak Detection Systems":
Final Report - November 11,1991.                                                     ;
Detector is reusable.
Petro Vend, Inc.                                 Evaluaton Carnegie Mellon Research Institute
6900 Santa Fe Dr.                               Tel: (412) 268-3495                    '
Hodgkins, IL 60525-9909
Tel: (708) 485-4200                              Date of Evaluation: 10/15/92
                                                200
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
tho method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                               Revision Date: April 18,1997
                                           Petro Vend, Inc.

                                            SiteSentinel
                                    30-3206,-3207,-3210 Sensors

                        LIQUID-PHASE OUT-OF-TANK PRODUCT DETECTOR

Detector:

Output type:               qualitative
Sampling frequency:       continuous
Operating principle:        product permeable

Test Results:
                                                unleaded                       synthetic
                                                gasoline                        gasoline
Accuracy (%)                                    100                            100
Detection time (hr:min:sec)                       00:01:41                        00:05:14
Fall time (hr:min:sec)                             07:28:44                        00:18:36
Lower detection limit (cm)                         0.02                            0.02

Specificity Results:
Activated: unleaded gasoline, synthetic gasoline, n-hexane, diesel fuel, jet-A fuel, toluene, xylene(s).

Manufacturer's specifications:
Conductive polymer.

Comments:
EPA and many states require detection of 1/8 inch (0.32 cm) of product for groundwater monitoring..
Detector is reusable.
Petro Vend, Inc.                               Evaluator: Underwriters Laboratories, Inc.
6900 Santa Fe Dr.                             Tel: (847) 272-8800
Hodgkins, IL 60525-9909
Tel: (708) 485-4200                            Date of Evaluation: 12/10/92
                                                201
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                              Revision Date: April 18,1997
                                           Petro Vend, Inc.

                                         Petrosentry TLD III

                        VAPOR-PHASE OUT-OF-TANK PRODUCT DETECTOR

 Detector:

 Output type:              qualitative
 Sampling frequency:       continuous
 Operating principle:        metal oxide semiconductor

 Test Results:
                                            benzene                      2-methvlbutane
 Accuracy {%)                               100                          100
 Detection time (min:sec)                      00:05                        00:16
 Fall time (min:sec)                           04:12                        00:42
 Lower detection limit (ppm)                   12.5                         12.5

 Specificity Results:
 Activated: benzene, n-butane, n-hexane, isobutane, 2-methylpentane, toluene.

 Manufacturer's specifications:
 Maximum Wire Distance: 500 ft using 18 AWG
Petro Vend, Inc.                                Evaluaton Carnegie Mellon Research Institute
6900 Santa Fe Dr.                               Tel: (412)268-3495-
Hodgkins, IL 60525-9909,                                                             I
Tel: (708) 485-4200                             Date of Evaluation: 03/26/91
                                                202                                 ;
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                           _                                  Revision Date: April 18,1997
                                           Petro Vend, Inc.

                                             SiteSentinel
                                   Smart Module and Vapor Sensor

                         VAPOR-PHASE OUT-OF-TANK PRODUCT DETECTOR

  Detector:

  Output type:              qualitative
  Sampling frequency:       continuous
  Operating principle:        metal oxide semiconductor

  Test Results:
                                             unleaded         synthetic              jp-4
  A       -,„„                               gasoline         gasoline              jet fuel
  Accuracy (%),                              100              100                   IQO
  Detection time (min:sec)                      00:05            00-07                 00-10
  Fall time (min:sec)                           06:30            03-35                 04:26
  Lower detection limit (ppm)                    10               10                   10

  *For tests conducted with 1000 ppm of test gas.

  Specificity Results:
  Activated: unleaded gasoline, synthetic gasoline, n-hexane, JP-4 jet fuel, toluene, xylene(s).

  Comments:
 Test procedures used were Radian Corporation's draft report "Development of Procedures to
 Assess the Performance of External Leak Detection Devices: Vapor-Phase ASTM-
 Formatted Methods," June 29,1990.
A25? Q=fnt* in                                Evaluator: Carnegie Mellon Research Institute
6900 Santa Fe Dr.                               Tel: (412) 268-3495
Hodgkins, IL 60525-9909
Tel: (708) 485-4200                             Date of Evaluation: 04/16/92
                                               203
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equ.pment Equipment should be installed and operated in accordance -with all appLable^T^re^Ss

-------
                                  Pneumercator Company, Inc.


                      LC1000, E-14-29, E-700-1, LDE-700, LDE-740, IMS 3000
                              LS600AB, LS600LDBN, LS610, RSU800


                            LIQUID-PHASE INTERSTITIAL DETECTOR
                                                                           Revision Date: April 18,1997
Detector:

Output type:
Sampling frequency:
Operating principle:

Test Results:
qualitative
continuous
float switch
LS600AB
unleaded
aasoline
100
3.32
RSU800
unleaded
aasoline
100
2.57




diesel water
100 100
3.28 3.18
(low level) 	

diesel water
100 100
2.53 2.31
LS600LDBN
unleaded
qasoline diesel water
100 100 100
0.99 0.97 0.87
LS610
unleaded
aasoline
100
0.44
RSU800 (hiah level)
unleaded
aasoline diesel water
100 100 100
13.31 13.24 13.01




diesel water
100 100
0.43 0.42




^^
Accuracy i
Detection time (sec)
Fall time (sec)
Lower detection limit (in)
Accuracy (%)
Detection time (min)
Fall time (min)
Lower detection limit (ppm)

Specificity Results:
Activated: unleaded gasoline, diesel fuel, water.
Manufacturer and evaluator claim sensor will respond to any liquid.


TesJorocSures used were modified by evaluatorfrom EPA's "Standard Test Procedures for Evaluating Leak
D2SSnlKSSuqui«tPha8e Out-of-Tank Product Detectors" and from EPA's "Standard Test Procedures
for Evaluating Leak Detection Methods: Nonvolumetric Tank Tightness Testing Methods.
 Detector is reusable.
 Pneumercator Company, Inc.
 120 Finn Court
 Farmingdale,NY11735
 Tel: (516) 293-8450
Evaluator: Ken Wilcox Associates
Tel: (816) 443-2494

Date of Evaluation: 01/22/96
                                                204
 Aooearanca on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
                     Equipment should be installed and operated in accordance with all applicable laws and regulars.

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                                                                              Revision Date: April 18,1997
                                    Pneumercator Company, Inc.

                                    LDE 700, IDE 740, IDE 9000
                              Sensor Probe Models 9-901,9-902,9-903

                             LIQUID-PHASE INTERSTITIAL DETECTOR

Detector:

Output type:               qualitative
Sampling frequency:        continuous
Operating principle:        capacitance

Test Results:
                                        unleaded                      synthetic
                                        gasoline                       gasoline
Accuracy (%)                            100                           100
Detection time (min:sec)                  <00:01                         <00:01
Fall time (hr:min:sec)                     Manual reset                   Manual reset
Lower detection limit (cm)
  9-901                                 0.32                           0.36
  9-902                                 0.36                           0.34
  9-903                                 0.76                           0.74

Specificity Results:
Activated: unleaded gasoline, synthetic gasoline, n-hexane, diesel fuel, jet-A fuel, toluene, xylene(s), water.

Comments:
EPA and many states require detection of 1/8 inch (0.32 cm) of product for ground water monitoring.
Test procedures used were a combination of EPA's "Standard Test Procedures for Evaluating Leak Detection
Methods: Liquid-Phase Out-of-Tank Product Detectors" and EPA's "Standard Test Procedures for Evaluating
Leak Detection Methods: Nonvolumetric Tank Tightness Testing Methods."
Detector is reusable.
Pneumercator Company, Inc.                     Evaluator: Ken Wilcox Associates
120 Finn Court                                  Tel: (816) 443-2494
Farmingdale, NY11735
Tel: (516) 293-8450                             Date of Evaluation: 12/14/93
                                               205
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:


Applicability:

Specification:
                                                                             Revision Date: April 18,1997

                                           ProTankJnc.

                                       LTH-5000 Line Tester

                                 LINE TIGHTNESS TEST METHOD


                  Leak rate of 0.1 gph with PD=99.8% and PFA=1 -3%. ,

                  0.05 gph.  A leak is declared if the output of the measurement system equals or exceeds
                  this threshold.

                  Gasoline, diesel, aviation fuel, and fuel oil, and solvents.

                  System tests fiberglass and steel pipelines.
                  Tests are conducted at 150% operating  pressure.
                  Mechanical line leak detector must be removed from pipeline for duration of test.
Pipeline Capacity: Maximum of 40 gallons.

Waiting Time:
                  None between delivery and testing.
                  Minimum of 1 hour between dispensing and testing.

Test Period:      Minimum of 10 minutes. Repeat 10 minute cycles are necessary if data does not meet
                  the manufacturer's criteria.
                  Test data are acquired and recorded manually.
                  Manual calculations are performed by operator on site.

Calibration:      Sensors must be calibrated before each test.
 ProTank, Inc.
 3545 Lomita Blvd., Suite G
 Torrance, CA  90505
 Tel: (800) 438-1111
                                                 Evaluator: Midwest Research Institute
                                                 Tel: (816) 753-7600

                                                 Date of Evaluation: 02/14/91
                                                  206
  Arxjearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
                     Equipment should be installed and operated in accordance with all applicable laws and regulat,ons.

-------
 Certification:

 Leak Threshold:


 Applicability:

 Specification:
                                                            Revision Date: April 18,1997
                         ProTank, Inc.

                     LTP-5000 Line Tester

                LINE TIGHTNESS TEST METHOD

Leak rate of 0.1 gph with PD=99.0% and PFA=0.1%.

0.05 gph. A leak is declared if the output of the measurement system equals or exceeds
this threshold.

Gasoline, diesel, aviation fuel, and fuel oil #4, fuel oil #6, and solvents.

System tests fiberglass and steel pipelines.
Tests are conducted at 150% operating pressure.
Mechanical line leak detector must be removed from pipeline for duration of test.
 Pipeline Capacity: Maximum of 41 gallons.

 Waiting Time:      None between delivery and testing.
                    Minimum of 1  hour between dispensing and testing.

 Test Period:       Minimum of 1  hour.
                    Pipe deflection, vapor pockets, and large temperature differences may
                    produce inconsistent readings.
                    Testing to continue until stable conditions are present.
                    Test data are acquired and recorded manually.
                    Manual calculations are performed by operator on site.

 Calibration:        Sensors must be calibrated before each test.
ProTank, Inc.
3545 Lomita Blvd., Suite G
Torrance, CA  90505
Tel: (800) 438-1111
                            Evaluator: Midwest Research Institute
                            Tel: (816) 753-7600

                            Date of Evaluation: 08/30/91
                                                207
IJEXl^f °n *"? "St iS» "? *° be Ca!H^ f3 ?" endorsement ^ any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:


Applicability:

Tank Capacity:

Waiting Time:

Test Period:




Test Pressure:


Temperature:

Groundwater:
 Comments:
                                                           Revision Date: April 18,1997
                         ProTank, Inc.

                    UTA-5000 Ullage Tester
                  (Vacuum or Pressure Test)

NON-VOLUMETRIC TANK TIGHTNESS TEST METHOD (ULLAGE)

  Leak rate of 0.1 gph with PD=100% and PFA=O%.

  A leak is declared when the acoustic signal detected is different from the baseline.
  Baseline is the acoustic signal before tank is pressurized or evacuated.

  Gasoline, diesel, aviation fuel, fuel oils #4 and #6, waste oil, and solvents.

  Maximum ullage volume is 16,500 gallons.                          ,       ••

  None between delivery and testing

  A few minutes to determine background noise and a leak.
  Depends on background noise at the site and on the size of the leak.
  After the desired pressure has been reached, the tank should be allowed to settle
  for 10 minutes.

  Vacuum of 1 psi must be maintained in ullage by a vacuum blower, or total pressure
  at bottom of tank of 4 psi must be maintained using nitrogen.

  Acoustic signal is independent of product temperature.

  Depth to groundwater in backfill must be determined. If groundwater is;above
  product level, vacuum test should not be used.
  Pressure test may only be used if net pressure can be maintained at a
  minimum 1 psi throughout ullage during test. If this requires more than
  5 psi total pressure at tank bottom, the ullage test must not be used.

  Not evaluated using manifold tank systems.
  Evaluated using diesel fuel.
  Tests only ullage portion of the tank.
  Product-filled portion of tank must be tested with an underfilled test method.
  Microphone was 25 feet away from the leak source during evaluation.
  If background noise is too high, test is inconclusive.
  Noise signals are tape recorded (not digitally recorded).
  Vacuum test method may not be effective in some backfill (such as clay)
  because it may plug holes in tank.
  If soil is saturated with product, air or water ingress may not be declared
  by vacuum test. A well point in backfill may help identify presence of this condition.
 ProTank, Inc.
 3545 Lomita Blvd., Suite G
 Torrance, CA 90505
 Tel: (800) 438-1111
                              Evaluator: Ken Wilcox Associates
                              Tel: (816) 443-2494

                              Date of Evaluation: 01/15/93,
                                                 208
 Awxjarance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 tharnethod or equipment Equipment should be installed and operated in accordance with all applicable laws and regulatons.

-------
                                            ProTank, Inc.
                                                                               Revision Date: April 18,1997
 Certification:

 Leak Threshold:


 Applicability:

 Tank Capacity:

 Waiting time:

 Test Period:


 Test Pressure:
 Temperature:


 Groundwater:




 Comments:
                     UTF-50GO Ullage Tester
                         (Pressure Test)

 NON-VOLUMETRIC TANK TIGHTNESS TEST METHOD (ULLAGE)

 Leak rate of 0.1 gph with PD=95.24% and PFA=0%.

 A leak is declared when the make-up gas flow rate into ullage equals or exceeds
 0.275 cubic feet/hour.                 ..          ,

 Gasoline, diesel, aviation fuel, heavy fuel oil #4, and solvents.

 Maximum ullage volume is 7,500 gallons.

 Minimum of 2 hours between delivery and testing.

 Minimum of 20 minutes, consisting of 2 consecutive 10-minute test periods.
 Test data are acquired and recorded manually.

 Pressure must be increased in ullage such that total pressure at
 bottom of tank does not exceed 5.0 psi.
 Pressure must be maintained for a minimum of 5 minutes per 1,000 gallons
 of ullage.
 At conclusion of this stabilization period, ullage pressure must be reduced by
 0.5 psi for remainder of test.                                          .    .   .  .

 Ullage must be monitored for rate of temperature change, which must not
 exceed manufacturer's tabulated values.

 Depth to groundwater in backfill must be determined. If groundwater is above product
 level, net pressure must exceed 1 psi in the ullage during test.
 If this requires more than 5 psi total pressure at tank bottom, the ullage test must not be
 used.

 Not evaluated using manifold tank systems.
 Evaluated using diesel fuel.
Tests only ullage portion of tank.
 Product-filled portion of tank must be tested using a volumetric underfilled test method.
ProTank, Inc.
3545 Lomita Blvd., Suite G
Torrance, CA 90505
Tel: (800) 438-1111
                             Evaluator: Midwest Research Institute
                             Tel: (816) 753-7600

                             Date of Evaluation: 12/04/92
                                                209
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:

Applicability:

Tank Capacity:

Waiting time:

Test Period:

Test Pressure:

Temperature:



Groundwater:



Comments:
                                                           Revision Date: April 18,1997
                         ProTank, Inc.

                   UTFP-5000 Ullage Tester
                        (Pressure Test)

NON-VOLUMETRIC TANK TIGHTNESS TEST METHOD (ULLAGE)

  Leak rate of 0.1 gph with Po=95.24% and PFA=0%.

  A leak is declared when the pressure decay trend equals or exqeeds ± 0.016 psi/hr.

  Gasoline, diesel, aviation fuel, heavy fuel oils #2 through #6, and solvents.

  Maximum ullage volume is 10,260 gallons.

  Minimum of 2 hours between delivery and testing.

  Minimum of 30 minutes (after data trend has been established).

  Total pressure of 4.0 psi must be applied at bottom of tank.

  Ullage must be monitored during test, and a correction
  factor is applied to account for temperature changes. If ullage
  temperature changes exceed 5 degrees F, test must not be conducted;

  Depth to groundwater in backfill must be determined. If groundwater is above
  product level, net pressure must be maintained at a minimum of 1 psi in the
  ullage during test.

  Not evaluated using manifold tank systems.
  Evaluated using diesel fuel.
  Tests only ullage portion of tank.
  Product-filled portion of tank must be tested using a volumetric underfilled test method.
 ProTank, Inc.
 3545 Lomrta Blvd., Suite G
 Torrance, CA 90505
 Tel: (800) 438-1111
                              Evaluator: ADA Technologies, Inc.
                              Tel: (303) 792-5615

                              Date of Evaluation: 04/10/92
                                                210
 Appoaranca on this list Is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:


Applicability:


Tank Capacity:


Waiting Time:



Test Period:




Temperature:


Groundwater:
Calibration:

Comments:
                                                           Revision Date: April 18,1997
                        ProTank, Inc.

                   VU-5000 Underfill Tester

VOLUMETRIC TANK TIGHTNESS TEST METHOD (UNDERFILL)

    Leak rate of 0.1 gph with PD=99.9% and PFA=0.1%.

    0.05 gph. A leak is declared if the output of the measurement system equals or
    exceeds this threshold.

    Gasoline, diesel, aviation fuel, fuel oils #4 and #6, waste oil, solvents, and other
    products.

    Maximum of 18,000 gallons.
    Tank must contain minimum 24 inches of product.

    Must be long enough between delivery and testing to ensure a temperature
    change of less than 0.09 degrees F per hour, typically a minimum of 2 hours.
    There must  be no delivery during waiting time.

    Minimum of 2 hours.
    Test data are acquired and recorded by a computer.
    Leak rate is calculated from average over data window.
    There must  be no dispensing or delivery during test.

    Average for product is typically determined by 5 thermistors.
    A minimum of 1 thermistor is required.

    Depth to groundwater in backfill must be determined. If groundwater is above
    bottom of tank,  product level must be adjusted to provide a minimum net pressure
    of 1 psi at bottom of tank during test. (There must be a difference of at least 37
    inches between groundwater level and  product level to provide a net pressure of 1
    psi at bottom of tank during test.)

    Thermistors must be checked annually and calibrated if necessary.

    Not evaluated using manifold tank systems.
    Tests only portion of tank containing product.
    As product level is lowered, leak rate in a leaking tank decreases (due to
    lower head pressure).  Consistent testing at low levels could allow a leak to remain
    undetected.
    EPA leak detection regulations require testing of the portion of the tank system which
    routinely contains product.
ProTank, Inc.
3545 Lomita Blvd., Suite G
Torrance, CA 90505
Tel: (800) 438-1111
                            Evaluator: Ken Wilcox Associates
                           ' Tel: (816) 443-2494

                            Date of Evaluation: 02/15/93
                                                211
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:


Applicability:

Tank Capacity:


Waiting Time:



Test Period:




Temperature:



Groundwater:
Calibration:

Comments:
                                                          Revision Date: April 18,1997
                        ProTank, Inc.

                  VUP-5000 Underfill Tester

VOLUMETRIC TANK TIGHTNESS TEST METHOD (UNDERFILL)

 Leak rate of 0.1 gph with PD=99.99% and PFA=0.005%.

 0.05 gph.  A leak is declared if the output of the measurement system equals or
 exceeds this threshold.

 Gasoline, diesel, aviation fuel, fuel oil, waste oil, and solvents.

 Maximum of 18,000 gallons.
 Tank must be between 11 and 95% full.

 Minimum of 6 hours between delivery and testing.
 None between dispensing and testing.
 There must be no delivery during waiting time.

 Minimum of 3 hours.
 Test data are acquired and recorded by  a computer.
 Leak rate is calculated from average of subsets of all collected data.
 There must be no dispensing or delivery during test.

 Average for product is determined by temperature sensor probes.
 A minimum 12 inches of product must be present for the temperature probes to
 operate properly.

 Depth to groundwater in backfill must be determined.  If groundwater is above
 bottom of tank, product level must be adjusted during test to provide a minimum
 net pressure of 1 psi at bottom of tank  during test.  (There must be a' difference of at
 least 37 inches between groundwater level and product level to provide a net pressure
 of 1 psi at bottom of tank during test.)

 Temperature probes and floats must be  checked for proper operation prior to each test.

 Not evaluated using manifold tank systems.
 Tests only portion of tank containing product.
 As product level is lowered, leak rate in a leaking tank decreases (due to !
 lower head pressure).  Consistent testing at low levels could  allow a  leak to  remain
 undetected.                                                     '
 EPA leak detection regulations require testing  of the portion of the tank system which
 routinely contains product.
 ProTank, Inc.
 3545 Lomita Blvd., Suite G
 Torrance, CA  90505
 Tel: (800) 438-1111
                             Evaluaton ADA Technologies
                             Tel: (303) 792-5615

                             Date of Evaluation: 09/09/92
                                                212
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the melhod or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                                                              Revision Date: April 18,1997
                                          Raychem Corp.

                               TraceTek Alarm and Locator Modules
                                     TT502 Fuel Sensing Cable
                        LIQUID-PHASE OUT-OF-TANK PRODUCT DETECTOR

Detector:

Output type:               qualitative
Sampling frequency:        continuous
Operating principle:         electrical conductivity

Test Results:
                                       	unleaded gasoline
                                         1/3 MER            2/3 MER           MER
                                         334 m     .         665 m             995 m

Accuracy (%)                             100                100               100
Response time (min)                      22.11               17.13             19.42
Recovery time (min)                       N/A**               N/A               N/A
Product activation height (cm)              1.53               1.53              1.53
Detection length (cm)                      61                  61                61
Lower detection limits (cm)
    Product act. height                     N/D**               N/D               0.77
    Detection length                       N/D                N/D               10

*At a flow rate of 0.17 gal/hr in test chamber.
** See glossary.

Specificity Results:
Activated: diesel fuel, synthetic fuel, heating oil #2.
Not Activated: water.

Comments:
EPA and many states require detection of 1/8 inch (0.32 cm) of product for groundwater monitoring.,
Test procedures used were Carnegie Mellon Research Institute's "Test Procedures for Third Party
Evaluation of Leak Detection Methods: Cable Sensor Liquid Contact Leak Detection Systems": Final Report •
November 11,1991.
Evaluation also covered quantitative leak location.
Raychem Corp.                                 Evaluator: Carnegie Mellon Research Institute
300 Constitution Dr.                             Tel: (412)268-3495
Menlo Park, CA 94025-1164
Tel: (415) 361-3333                             Date of Evaluation: 05/15/92
                                                213
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                       Ronan Engineering Co.
                                                                              Revision Date: April 18,1997
Certification:

Leak Threshold:


Applicability:

Specification:
             Ronan X-76 Automatic Line Leak Detector
Version X-76 DM-4 Microprocessor and JT-H2 Line Pressure Sensor

        AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

      Leak rate of 3.0 gph with PD=100% and PFA=0%.                 ;

      0.831 gph. A leak is declared if the output of the measurement system
      equals or exceeds this threshold.

      Gasoline, diesel, aviation fuel, fuel oils #4 and #6, waste oil, and solvents.

      System tests pressurized fiberglass and steel pipelines.
      Tests are conducted at operating pressure.
      System will not function with a mechanical line leak detector installed
      in the pipeline.
Pipeline Capacity:

Waiting Time:


Test Period:
System Features:
Calibration:
      Maximum of 45 gallons.

      None between delivery and testing.
      None between dispensing and testing.                           ,

      Response time is 20 seconds.
      Test data are acquired and recorded by a permanently installed
      microprocessor.                                 •       .     '
      Calculations are automatically performed by the microprocessor.

      Permanent installation on pipeline.
      Automatic testing of pipeline.
      Preset threshold.
      Single test to determine if pipeline is leaking.
      Dispenser shutdown, message display, and alarm activation if leak is declared.
                                                                   i
      System must be checked annually and calibrated if necessary in accordance with
      manufacturer's instructions.
Ronan Engineering Co.
21200 Oxnard St.
Woodland Hills, CA  91367
Tel: (818) 883-5211
                               Evaluator: Midwest Research Institute
                               Tel: (816) 753-7600

                               Date of Evaluation: 10/04/91
                                                214
Appearance on this list Is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                              Revision Dale: April 18,1997
                                      Ronan Engineering Co.

                             Ronan X-76 Automatic Line Leak Detector
                 Version X-76 DM-4 Microprocessor and JT-H2 Line Pressure Sensor

                         AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

Certification:       Leak rate of 0.1 gph with PD=100% and PFA=0%.

Leak Threshold:   0.066 gph. A leak is declared if the output of the measurement system equals or
                   exceeds this threshold.

Applicability:       Gasoline, diesel, aviation fuel, fuel oils #4 and #6, waste oil, and solvents.

Specification:      System tests pressurized fiberglass and steel pipelines.
                   Tests are conducted at operating pressure.
                   System will not function with a mechanical line leak detector installed
                   in the pipeline.

Pipeline Capacity:  Maximum of 45 gallons.

Waiting Time:      None between delivery and testing.       •
                   Minimum of 2 hours between dispensing and testing.

Test Period:       Response time is 20 minutes.
                   Test data are acquired and recorded by a permanently installed microprocessor.
                   Calculations are automatically performed by the microprocessor.

System Features:  Permanent installation on pipeline.
                   Automatic testing of pipeline.
                   Preset threshold.
                   Single test to determine if pipeline is leaking.
                   Dispenser shutdown, message display, and alarm activation if leak is declared.

Calibration:        System must be checked annually and calibrated  if necessary in accordance with
                   manufacturer's instructions.
Ronan Engineering Co.                           Evaluator: Midwest Research Institute
21200 Oxnard St.                                Tel: (816) 753-7600
Woodland Hills, CA 91367   .
Tel: (818) 883-5211                              Date of Evaluation: 10/04/91



                                                215
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
 Certification:
                     Ronan Engineering Co.

                   X-76 ETM and X-76 ETM-4X
                    (Magnetostrictive Probe)
             AUTOMATIC TANK GAUGING SYSTEM

 Leak rate of 0.2 gph with PD = 99.96% and PFA = 0.044%.
                                                                              Revision Date: April 18,1997
 Leak Threshold:   0.1 gph.  A leak is declared if the output of the measurement system equals or exceeds
                   this threshold.
 Applicability:


 Tank Capacity:
Gasoline, diesel, aviation fuel, fuel oil #4, waste oil, and solvents.
Other liquids may be tested after consultation with the manufacturer.

Maximum of 15,000 gallons.
Tank must be between 50 and 95% full if the system leak threshold is set at 0.1 gph.
System may also be used to test at a minimum product  height of 12 inches or a 14% full
tank, whichever is  higher,  if  the  leak threshold is set  at 0:049 gph. This threshold is
calculated based on PD = 95% and PFA = 5%.
Waiting Time:


Test Period:




Temperature:


Water Sensor:



Calibration:


Comments:
Minimum of 2 hours between delivery and testing.
There must be no dispensing or delivery during waiting time.

Minimum of 4 hours.
Test data are acquired and recorded by a computer.
Leak rate calculated from data determined to be statistically valid.
There must be no dispensing or delivery during test.

Average for product is determined by a minimum of 1 resistance temperature
detector (RTD).                                                    '

Must be used to detect water ingress.
Minimum detectable water level in the tank is 0.947 inch.
Minimum detectable water level change is 0.0254 inch.

RTD and probe must be checked and calibrated in accordance with
manufacturer's instructions.

Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
lower head pressure).  Consistent testing at low levels could  allow a i leak to remain
undetected.                                            '  '    •      '.
EPA leak detection regulations require testing of the  portion of .the tank system which
routinely contains product.                                           !
X76ETM-4X console has different housing which allows it to be mounted outside.
Ronan Engineering Co.
21200 Oxnard St.
Woodland Hills, CA  91367
Tel: (818) 883-5211
                             Evaluator: Ken Wilcox Associates
                             Tel: (816) 443-2494

                             Date of Evaluation: 02/07/91
                                                216
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of'the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                      Ronan Engineering Co.

                                    X-76 ETM and X-76 ETM-4X
                                      (Magnetostrictive Probe)
                               AUTOMATIC TANK GAUGING SYSTEM

Certification:    Leak rate of 0.1 gph with PD = 95.34% and PFA = 4.66%.

Leak Threshold
                                                                              Revision Date: April 18, 1997
Applicability:


Tank Capacity:


Waiting Time:


Test Period:




Temperature:


Water Sensor:



Calibration:


Comments:
0.05 gph.  A leak is declared if the output of the measurement system equals or exceeds
this threshold.

Gasoline, diesel, aviation fuel, fuel oil #4, waste oil, and solvents.
Other liquids may be tested after consultation with the manufacturer.

Maximum of 15,000 gallons.
Tank must be between 50 and 95% full.

Minimum of 8 hours between delivery and testing.
There must be no dispensing or delivery during waiting time.

Minimum of 4 hours.
Test data are acquired and recorded  by a computer.
Leak rate calculated from data determined to be statistically valid.
There must be no dispensing or delivery during test.

Average for product is determined by a minimum of 1 resistance temperature
detector (RTD).

Must be used to detect water ingress.
Minimum detectable water level in the tank is 0.947 inch.
Minimum detectable water level change is 0.0254 inch.

RTD and probe must be checked and calibrated in accordance with
manufacturer's instructions.

Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
lower head  pressure).  Consistent  testing at low levels could allow a  leak to  remain
undetected.
EPA leak detection regulations require testing of the portion of the tank system which routinely
contains product.
X76ETM-4X console has different housing which allows it to be mounted outside.
Ronan Engineering Co.
21200 Oxnard St.
Woodland Hills, CA  91367
Tel: (818) 883-5211
                               Evaluator: Ken Wilcox Associates
                               Tel: (816) 443-2494

                               Date of Evaluation: 11/21/91
                                                217
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

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Certification:

Leak Threshold:


Applicability:

Tank Capacity:


Waiting Time:



Test Period:
Temperature:

Groundwater:



Calibration:

Comments:
                                                         Revision Date: April 18,1997
                   Schuster Instruments

                       Tel-A-Leak 1

VOLUMETRIC TANK TIGHTNESS TEST METHOD (OVERFILL)

  Leak rate of 0.1 gph with PD=99.86% and PFA=0.14%.

  0.05 gph. A leak is declared if the output of the measurement system equals or
  exceeds this threshold.

  Gasoline, diesel, aviation fuel, fuel oil #4, waste oil, and solvents.

  Maximum of 15,000 gallons.
  Tank must be minimum 100% full.

  Minimum of 6 hours between delivery and testing.
  Minimum of 1 hour between "topping off" and testing.
  There must be no dispensing or delivery during waiting time.

  Minimum of 1 hour.
  Test data are acquired and recorded manually and by a computer.
  Leak rate calculated from average of the last  10 consecutive 6 minute readings.
  There must be no dispensing or delivery during test.

  Average for product is determined by a minimum of 10 temperature sensors.

  Depth to groundwater in backfill must be determined. If groundwater is above
  bottom of tank, product level must be adjusted to provide net pressure of 2-4 psi
  at bottom of tank during test.

  Temperature sensors must be checked annually and calibrated annually.

  Not evaluated using  manifold tank systems.
Schuster Instruments
211 E. Grove St.
Kawkawlin, Ml  48631
Tel: (517) 684-6638
                           Evaluator: W. A. Kibbe and Associates
                           Tel: (517) 797-2425

                           Date of Evaluation: 11/26/90
                                               218
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                                                              Revision Date: April 18, 1997
                                       Simmons Sirvey Corp.

                                               SIR 5.7

            STATISTICAL INVENTORY RECONCILIATION TEST METHOD (QUANTITATIVE)

Certification:        Leak rate of 0.1 gph with PD=99.0% and PFA=1 -0%.

Leak Threshold:    0.05 gph. A leak is declared when leak rate equals or exceeds this threshold.

Applicability:        Motor vehicle fuels.

Tank Capacity:      Maximum of 18,000 gallons.

Data Requirement:  Minimum of 30 days of product level and flow through data.

Comments:         Not evaluated using manifold tank systems.
                    Of 41 data sets submitted for evaluation, all were analyzed with conclusive results.
                    Median monthly throughput of tanks evaluated was 7,000 gallons.
                    Leak rates ranging from 0.05 to 0.2 gph were used in evaluation.
                    Data sets evaluated were supplied by evaluator.
 Simmons Sirvey Corp.                           Evaluator: S.S.G. Associates
 106 E. Main Street                              Tel: (601) 234-1179
 Richardson, TX 75081-3327
 Tel: (800) 848-8378                             Date of Evaluation: 12/15/92
                                                 219
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                                                              Revision Date: April 18,1997
                                       Simmons Sirvey Corp.

                                             SIR 5.7 LM

            STATISTICAL INVENTORY RECONCILIATION TEST METHOD (QUANTITATIVE)

Certification:        Leak rate of 0.1 gph with PD=99.0% and PFA=1 -0%.

Leak Threshold:    0.05 gph. A leak is declared when leak rate equals or exceeds this threshold,

Applicability:        Motor vehicle fuels.

Tank Capacity:      Maximum of 45,000 gallons for single tank or for manifold tank systems with no more
                    than 4 tanks in system.                                            i'

Data Requirement:  Minimum of 29 days of product level and flow through data.

Comments:         Evaluated for manifolded tank systems using an acceptable protocol.
                    59% of datasets evaluated were from manifold tank systems.
                    7% of datasets evaluated used data collected by ATGs.
                    Of 41 datasets submitted for evaluation, all were analyzed with conclusive results.
                    Median monthly throughput of tanks evaluated was 40,165 gallons.
                    Leak rates of 0.05, 0.01 and 0.2 gph were used in evaluation.
                    Data sets evaluated were supplied by evaluator.
Simmons Sirvey Corp.                           Evaluator: S.S.G. Associates
106 E. Main Street                              Tel: (601) 234-1179
Richardson, TX 75081 -3327
Tel: (800) 848-8378                             Date of Evaluation: 10/28/95
                                                220
Appearance on this list Is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                       S.I.R. International, Inc.

                                Mitchell's SIR Program v.2.612-13-91

            STATISTICAL INVENTORY RECONCILIATION TEST METHOD (QUANTITATIVE)
                                                                               Revision Date: April 18, 1997
Certification:

Leak Threshold:

Applicability:

Tank Capacity:

Data Requirement:

Comments:
Leak rate of 0.1 gph with PD=98% and PFA=2%.

0.05 gph. A leak is declared when leak rate equals or exceeds this threshold.

Gasoline, diesel, aviation fuel, and fuel oil #4.

Maximum of 18,000 gallons.

Minimum of 32 days of product level and flow through data.

Not evaluated using manifold tank systems.
Of 41  data sets submitted for evaluation, 24 "best" analyses were returned and
17 data sets were not analyzed.
Median monthly throughput of tanks evaluated was 6313 gallons.
Leak rates of 0.049 to 0.21  gph were used in evaluation.
Data sets used in this evaluation were supplied by evaluator.
S.I.R. International, Inc.
11210 Steeplecrest Dr., Suite 120
Houston, TX  77065
Tel: (713) 897-0224
                         Evaluator: Wilcox Associates
                         Tel: (816) 443-2494

                         Date of Evaluation: 01/27/92
                                                221
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor'is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                                                             Revision Date: April 18,1997
                  SIR Monitor (formerly Environmental Management Technologies)

                                           SIR Monitor

            STATISTICAL INVENTORY RECONCILIATION TEST METHOD (QUANTITATIVE)
Certification:

Leak Threshold:

Applicability:

Tank Capacity:

Data Requirement:



Comments:
Leak rate of 0.1 gph with PD=99% and PFA=1%.

0.05 gph. A leak is declared when leak rate equals or exceeds this threshold.

Gasoline, diesel, aviation fuel, and fuel oil #4.

Maximum of 18,000 gallons.

Minimum of 90 days of product level arid flow through data are required
before making the first evaluation. Following the first evaluation,
subsequent evaluations are made based on minimum of 30 days of data.

Not evaluated using data from manifold tank systems.              \
Of 41  data sets submitted for evaluation, 5 were inconclusive.
Median monthly throughput of tanks evaluated was 14,600 gallons.
Leak rates of 0.05, 0.1, and 0.2 gph were used in evaluation.
Data sets evaluated were supplied by vendor.
SIR Monitor
P.O. Box 2791
Murfreesboro, TN 37133
Tel: (615) 895-2872
                       Evaluator: Nathan Adams, Middle TN State  Univ.
                       Tel: (615) 898-2644

                       Date of Evaluation: 11/05/92
                                                222
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                                                               Revision Date: April 18, 1997
                                           Sir Phoenix, Inc.

                                            SIR PHOENIX

             STATISTICAL INVENTORY RECONCILIATION TEST METHOD (QUANTITATIVE)
 Certification:

 Leak Threshold:

 Applicability:

 tank Capacity:

 Data Requirement:

'*•

 Comments:
Leak rate of 0.1 gph with Po=99.Q% and PFA=1%.

0.05 gph. A leak is declared when leak rate equals or exceeds this threshold.

Gasoline, diesel, aviation fuel, and fuel oil #4.

Maximum of 18,000 gallons.

Minimum of 90 days of product level and flow through data are required before
making the first evaluation. Following the first evaluation, subsequent
evaluations are made based on minimum of 30 days of data.

Not evaluated using manifold tank systems.
Of 41 data sets submitted for evaluation, 5 were inconclusive.
Median monthly throughput of tanks evaluated was 14,600 gallons.
Leak rates of 0.05, 0.1, and 0.2 gph were evaluated.
Data sets evaluated were supplied by vendor.
 Sir Phoenix, Inc.                                 Evaluator: Nathan Adams, Middle TN State Univ.
 9 Ford Rd., P.O. Box 229                         Tel: (615) 898-2644
 Leoma, TN 38468
 Tel: (615) 852-4121                              Date of Evaluation: 11/05/92
                                                 223
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                             Soiltest, Inc.
                                                                               Revision Date: April 18,1997
 Certification:

 Leak Threshold:


 Applicability:

 Tank Capacity:


 Waiting Time:



 Test Period:




 Temperature:

 Groundwater:



 Calibration:


 Comments:
           Soiltest Ainlay Tank Tegrity Tester, S-3

VOLUMETRIC TANK TIGHTNESS TEST METHOD (OVERFILL)

   Leak rate of 0.1 gph with PD=99% and PFA=1 %.

   0.05 gph. A leak is declared if the output of the measurement system equals or
   exceeds this threshold.

   Gasoline, diesel.

   Maximum of 15,000 gallons.
   Tank must be minimum 100% full.

   Minimum of 10 hours between delivery and testing.
   Minimum of 2  hours between "topping off" and testing.
   There must be no dispensing or delivery during waiting time.

   Minimum of 1  hour, 30 minutes.
   Test data are acquired and recorded manually and by a strip chart recorder.
   Leak rate is calculated from last 1 hour, 30 minutes of test period data.
   There must be no dispensing or delivery during test.

   Average for product is determined by a minimum of 3 thermistors.

   Depth to groundwater in backfill  must be determined. If groundwater is above
   bottom of tank, product level must be adjusted to provide net
   pressure of 2-4 psi at the  bottom of tank during test.

   Level sensors  must be calibrated before each test.
   Thermistors must be checked  annually and calibrated if necessary.

   Not evaluated  using manifold tank systems.
Soiltest, Inc.
86 Alfarecht Dr., P. O. Box 8004
Lake Bluff, IL 60044-8004
Tel: (800) 323-1242
                          Evaluator: Law Engineering Industrial Services
                          Tel: (800) 672-6601

                          Date of Evaluation: 11/28/90
                                                224
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations. •

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                                                                              Revision Date: April 18,1997
                                           Syscorp, Inc.

                                      Store Vision Version E.2

            STATISTICAL INVENTORY RECONCILIATION TEST METHOD (QUALITATIVE)

Certification:        Leak rate of 0.2 gph with Po=95.7% and PFA=0%.

Leak Threshold:     0.0834 gph. A leak is declared when leak rate equals or exceeds this threshold.

Applicability:        Gasoline, diesel, aviation fuel, and fuel oil #4.

Tank Capacity:      Maximum of 12,000 gallons.

Data Requirement:  Minimum of 29 days of product level and flow through data.

Comments:         Not evaluated using manifold tank systems.
                    Of 120 data sets submitted for evaluation, 32 were inconclusive.
                    Median monthly throughput of tanks evaluated was 8,097 gallons.
                    Leak rate of 0.2 gph was used in evaluation.
                    Data sets evaluated were supplied by evaluator.
Syscorp, Inc.                                   Evaluator: Midwest Research Institute
1513 Huffman Rd., Suite 202                     Tel: (816)753-7600
Birmingham, AL 35215
Tel: (205) 853-0004                             Date of Evaluation: 09/30/93
                                                225
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                       Tank Automation, Inc.
                                                                             Revision Date: April 18,1997
 Certification:

 Leak Threshold:


 Applicability:


 Tank Capacity:


 Waiting Time:



 Test Period:
Temperature:

Groundwater:



Calibration:


Comments:
 Automated Precision Tank Testing System (APTT System)
                           R-2

VOLUMETRIC TANK TIGHTNESS TEST METHOD (OVERFILL)

  Leak rate of 0.1 gph with PD=99% and PFA=1%.

  0.05 gph.  A leak is declared if the output of the measurement system equals or
  exceeds this threshold.

  Gasoline, diesel, aviation fuel, fuel oils #4 and #6, waste oil, solvents,
  and other compatible products.

  Maximum of 15,000 gallons.
  Tank must be minimum 100% full.

  Minimum of 10 hours, 30 minutes between delivery and testing.
  Minimum of 2 hours, 30 minutes between "topping off" and testing.
  There must be no dispensing or delivery during waiting time.

  Minimum of 1  hour.
  Test data are acquired and recorded manually for level measurement and by
  computer for temperature measurement.
  Leak rate is calculated from last 1 hour of test period data.
  There must be no dispensing or delivery during test.

  Average for product is determined by a minimum of 10 thermistors.

  Groundwater presence must be determined to a depth of 5 feet below grade in
  backfill. Product level must be a minimum of 5 feet 6 inches above grade to
  ensure a minimum net pressure of 1 psi at bottom of tank during test.

 Thermistors and level sensors must be checked annually and calibrated if
  necessary.

 Not evaluated using manifold tank systems.
Tank Automation, Inc.
P.O. Box 1395
Wall, NJ 07719
Tel: (908) 280-2233
                        Evaluator: Wildwood Engineering
                        Tel: Not Available

                        Date of Evaluation: 11/14/90
                                               226                                 ;
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
trie method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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Certification:

Leak Threshold:


Applicability:

Specification:



Pipeline Capacity:

Waiting Time:

Test Period:
                                                           Revision Date: April 18,1997
               Tanknology Corp. International

                            TLD-1

               LINE TIGHTNESS TEST METHOD

Leak rate of 0.1 gph with PD=99.5% and PFA=0.5%.

0.05 gph. A leak is declared if the output of the measurement system equals or exceeds
this threshold.

Gasoline, diesel, and aviation fuel.

System tests fiberglass and steel pipelines.
Tests are conducted at 150% operating pressure.
Mechanical line leak detector must be removed from pipeline for duration of test.

Maximum of 50 gallons.

Testing may begin immediately after test system is installed in the line.

Ranges from 30 minutes to 6 hours.
Test may not be ended until pass/fail criteria set by manufacturer has been met.
Pipe deflection, vapor pockets, and large temperature differences may produce
inconsistent readings. Testing must continue until stable conditions are present.
Test data are acquired and recorded manually.
Tanknology Corp.
5255 Hollister
Houston, TX 77040
Tel: (800)888-8563
                             Evaluator: Ken Wilcox Associates
                             Tel: (816) 443-2494

                             Date of Evaluation: 12/29/91
                                                 227
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment.  Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                            Tanknology Corp. International
                                                                                               Revision Date: April 18,1997
   Certification:

   Leak Threshold:




  Applicability:


  Tank Capacity:



  Waiting Time:

  Test Period:
 Water Sensor:





 Groundwater:



 Test Pressure:

 Comments:
                                  VacuTect


  NON-VOLUMETRIC TANK TIGHTNESS TEST METHOD (VACUUM)

  LeakrateofO.1 gph  withPD=100%andPFA=0%.    •    •                         ;

  A leak is declared when:
  sonic emission of air ingress is detected in ullage area and/or;
  sonic emission of bubbles formed by air ingress is detected in product-filled portion of the tank and/or
  water ingress is detected at the bottom of the tank.

  Gasoline, diesel, aviation fuel, fuel oil #4, and waste oil.
  Water miscible products limit the effectiveness of water ingress detection.

  Maximum of 75,000 gallons.
  The test is generally conducted with tank between 60 and 90% full.                   '
  The test may be performed at minimum 5% full if the total ullage volume does not exceed 20,000 gallons

  None between delivery and testing.

  Minimum of 1 hour to declare a tank tight (after vacuum is reached) if backfill is
  dry (no water is detected in  backfill prior to or at the conclusion of test). No specified
  minimum to declare a tank 'non-tight'. If water is present in backfill, minimum test
  period for declaring a tank tight is calculated based on the tank size/amount of water
  present in the tank prior to test, tank tilt, type of the water sensor and its location.
  Manufacturer's time charts should be checked for appropriate test periods.                  '   •
 When test relies on detection of water ingress, minimum test period to declare a tank tight (if the
 measurements are taken at the low end of the tank) is 4 hours for the printed circuit board water sensor
 (test penod may be shorter for tanks smaller than  1500 gallons) and 1 hour for the magnetostrictive
 water sensor. When water is present in backfill, an inclinometer must be used to determine and
 record tank tit. Tank tilt may also be determined by taking readings at both ends of the tank  Water
 sensor should always be used at the low end of the tank. If water measurements are not
 taken at the low end of tank, extended test periods may be required to detect any water
 ingress.

 Must be used at the low point of the tank to detect water ingress.
 Magnetostrfctive sensor minimum detectable water level is 0.017 inch, and minimum detectable
 water level change is 0.001 inch.                                                 i
 Printed circuit board sensor minimum detectable water level is 0.022 inch, and minimum detectable
 water level change is 0.016 inch.                                                uptwumie   .,

 Depth to groundwater in backfill must be determined. If groundwater is above bottom of
 tank, test time must be extended to allow sufficient time to detect water inqress of
 0.1 gph.

 Vacuum must not be greater than 0.5 psi at bottom of tank!

 Evaluated for manifold tank systems using two 20,000 gallon tanks during the 02/20/96 evaluation
 Evaluated using gasoline, diesel, and JP-4.
 Microphone should be located within 60 feet from any possible leak source.
Vacuum test method may not be effective in some  backfill (such as clay) because it mav
plug holes in tank.                                                           y
If soil is saturated with product, air or water ingress may not be detected by vacuum test
A well point in backfill may help identify presence of this condition.
Tanknology Corp.
5255 Hdlister
Houston, TX 77040
Tel: (800) 888-8563
                                 Evaluator: Ken Wilcox Associates
                                 Tel: (816) 443-2494

                                 Dates of  Evaluation:  09/08/92, 02/20/92,  01/18/94
                                 10/28/91 and 02/23/96
                                                         228
Appearance on this list Is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicableflaws and regulltbns

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Certification:

Leak Threshold:


Applicability:

Specification:


Pipeline Capacity:

Waiting Time:


Test Period:
System Features:
Calibration:
                                                        Revision Date: April 18,1997
                Tidel Engineering, Inc.

        LIPSPC-301-0730-001/LIP-301-0729-001
 Line Integrity Probe and Submersible Pump Controller

   AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

Leak rate of 3.0 gph with PD=100% and PFA=0%.

2.0 gph. A leak is declared if the output of the measurement system
equals or exceeds this threshold.

Gasoline, diesel, aviation fuel.

System tests pressurized fiberglass and steel pipelines.
Tests are conducted at operating pressure.

Maximum of 129 gallons.

None between delivery and testing.
None between dispensing and testing.

Response time is 1 minute.
Test data are acquired and recorded by a permanently installed
microprocessor.
Calculations are automatically performed by the microprocessor.

Permanent installation on pipeline.
Automatic testing of pipeline.
Preset threshold.
Single test to determine if pipeline is leaking.
Dispenser shutdown, message display, and alarm activation if leak is declared.

System must be checked annually and calibrated if necessary in accordance
with manufacturer's instructions.
 Tidel Engineering, Inc.
 2615 E. Belt Line Rd.
 Carrollton, TX 75006
 Tel: (800) 678-7577
                        Evaluator: Ken Wilcox Associates
                        Tel: (816) 443-2494

                        Date of Evaluation: 02/02/93
                                                 229
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

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Certification:

Leak Threshold:


Applicability:

Specification:


Pipeline Capacity:

Waiting Time:


Test Period:




System Features:
Calibration:
                                                        Revision Date: April 18,1997
                Tidel Engineering, Inc.

         LIPSPC-301-0730-001/LIP-301-0729-001
 Line Integrity Probe and Submersible Pump Controller

   AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

Leak rate of 0.1 gph with Po=100% and PFA=0%.

 0.06 gph. A leak is declared if the output of the measurement system equals or
 exceeds this threshold.

Gasoline, diesel, aviation fuel.

System tests pressurized fiberglass and steel pipelines.
Tests are conducted at operating pressure.

Maximum of 129 gallons.

None between delivery and testing.
None between dispensing and  testing.

Response time is 1 hour, 30 minutes.
Test data are acquired and recorded by a permanently installed
microprocessor.
Calculations are automatically performed by the microprocessor.
                                                              r
Permanent installation on pipeline.
Automatic testing of pipeline.
Preset threshold.
Single test to determine if pipeline is leaking.
Dispenser shutdown, message display, and alarm activation if leak is declared.

System must be checked annually and calibrated if necessary in accordance
with manufacturer's instructions.
Tide! Engineering, Inc.
2615 E. Belt Line Rd.
Carrollton, TX 75006
Tel: (800) 678-7577
                       Evaluator: Ken Wilcox Associates
                       Tel: (816) 443-2494

                       Date of Evaluation: 02/02/93
                                                230
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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Certification:


Leak Threshold:


Applicability:


Tank Capacity:


Waiting Time:



Test Period:
Temperature:
Water Sensor:
Calibration:
Comments:
Tidel Engineering, Inc.
2615 E.Beit Line Rd.
Carrollton, TX 75006
Tel:  (800) 678-7577
                                                         Revision Date: April 18,1997
                  Tidel Engineering, Inc.

    Tidel Environmental Monitoring System, 3500 Series
  (Ultrasonic Probes #401 -0009, #401 -0010 and #401 -0023)

           AUTOMATIC TANK GAUGING SYSTEM

Leak rate of 0.2 gph with PD = 95.3% and PFA = 4.7% for 2 hour test.
Leak rate of 0.2 gph with PD = 99.5% and PFA = 0.5% for 4 hour test.

0.1 gph.  A leak is declared if the output of the measurement system
equals or exceeds this threshold.

Gasoline, diesel, aviation fuel, and fuel oil.
Other liquids may be tested after consultation with the manufacturer.

Maximum of 15,000 gallons.
Tank must be between 50 and 95% full.

Minimum of 2 hours, 29 minutes between delivery and testing.
Minimum of 15 minutes after dispensing.
There must be no delivery during waiting time.

Minimum of 2 hours to achieve PD = 98.6% and PFA = 1 -4%.
Minimum of 4 hours to achieve PD = 99.5% and PFA = 0.5%.
Test data are acquired and recorded by the microprocessor contained within the EMS
console.
Leak rate is calculated from data determined to be valid by statistical analysis.
There must be no dispensing or delivery during test.

Average  for product is determined from the measurement of the change in the speed
of sound.

Must be used to detect water ingress.
Minimum detectable water level in the tank is 1.48 inches.
Minimum detectable water level change is 0.035 inch.

Temperature sensors and ultrasonic probe must be checked and calibrated in
accordance with manufacturer's instructions.

The water sensor, temperature sensor, and product level monitor are contained
in a single ultrasonic probe.
Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product  level is lowered, leak rate in a leaking tank decreases (due to
lower head pressure).  Consistent testing at low levels could allow a leak to remain
undetected.
EPA leak detection regulations require testing of the portion of the tank system, which
routinely contains product.

                           Evaluator: Ken Wilcox Associates
                           Tel: (816) 443-2494

                           Date of Evaluation: 03/16/95
                                                231
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                        Tidel Engineering, Inc.
                                                                               Revision Date: April 18,1997
               Tidel
 Certification:

 Leak Threshold:


 Applicability:

 Tank Capacity:


 Waiting Time:


 Test Period:
 Temperature:

 Water Sensor:



 Calibration:


 Comments:
Environmental Monitoring System, EMS 2000,3000, and 3500 Series
        (Ultrasonic Probes #401-0009 and #401-0010)

           AUTOMATIC TANK GAUGING SYSTEM

 Leak rate of 0.2 gph with PD = 96.2% and PFA = 3%.

 0.1 gph. A leak is declared if the output of the measurement system
 equals or exceeds this threshold.

 Gasoline, diesel, aviation fuel, fuel oil, and solvents.

 Maximum of 15,000 gallons.
 Tank must be between 50 and 95% full.

 Minimum of 2 hours between delivery and testing.
 There must be no dispensing or delivery during waiting time.

 Minimum of 6 hours.
 Test data are acquired and recorded by a microprocessor contained within the EMS
 console.
 Leak rate is calculated from data determined to be valid by statistical analysis.
 There must be no dispensing or delivery during test.

 Average for product is determined by a minimum of 5 temperature sensors.

 Must be used to detect water ingress.
 Minimum detectable water level  in the tank is 1.48 inches.
 Minimum detectable water level change is 0.035 inch.

Temperature sensors and ultrasonic probe must be checked and calibrated in
accordance with manufacturer's  instructions.

Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
lower head pressure).  Consistent testing at low levels  could allow a leak to remain
undetected.                                                      !
EPA leak detection regulations require  testing  of the portion of the tank system which
routinely contains product.
EMS 2000 and 3000 Series are no longer manufactured by Tidel.
Tidel Engineering, Inc.
2615 E. Belt Line Rd.
Carrollton, TX 75006
Tel: (800) 678-7577
                           Evaluator: Ken Wilcox Associates
                           Tel: (816) 443-2494

                           Date of Evaluation: 06/07/93
                                                232
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the perforrhance of
tna method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                       Tidel Engineering, Inc.
                                                                              Revision Date: April 18,1997
              Tide! Environmental Monitoring System, EMS 2000,3000, and 3500 Series
                            (Ultrasonic Probes #401-0021 and #401-0022)
Certification:

Leak Threshold:


Applicability:

Tank Capacity:


Waiting Time:


Test Period:
Temperature:

Water Sensor:



Calibration:


Comments:
           AUTOMATIC TANK GAUGING SYSTEM

Leak rate of 0.2 gph with PD = 99.91% and PFA = 0.09%.

0.1 gph.  A leak is declared if the output of the measurement system
equals or exceeds this threshold.

Gasoline, diesel, aviation fuel, fuel oil, and solvents.

Maximum of 15,000 gallons.
Tank must be between 50 and 95% full.

Minimum of 2 hours between delivery and testing.           .
There must be no dispensing or delivery during waiting time.

Minimum of 6 hours.
Test data are acquired and recorded by a microprocessor contained within the EMS
console.
Leak rate is calculated from data determined to be valid by statistical analysis.
There must be no dispensing or delivery during test.

Average  for product is determined by a minimum of 5 temperature sensors.

Must be used to detect water ingress.  ,
Minimum detectable water level in the tank is 1.48 inches.
Minimum detectable water level change is 0.035 inch.

Temperature sensors and ultrasonic probe must be checked and calibrated in
accordance with manufacturer's instructions.

Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
lower head pressure).  Consistent  testing  at low levels could allow a leak to remain
undetected.
EPA leak detection  regulations require testing of the portion of the tank  system which
routinely contains product.
EMS 2000 and 3000 Series are no longer manufactured by Tidel.
Tidel Engineering, Inc.
2615 E. Belt Line Rd.
Carrollton, TX 75006
Tel: (800) 678-7577
                           Evaluator: Ken Wilcox Associates
                           Tel: (816) 443-2494

                           Date of Evaluation: 06/07/93
                                                233
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                        Tidel Engineering, Inc.
                                                                               Revision Date: April 18,1997
 Certification:


 Leak Threshold:


 Applicability:


 Tank Capacity:


 Waiting Time:



 Test Reriod:
 Temperature:


 Water Sensor:



 Calibration:


 Comments:
      Tidel Environmental Monitoring System, EMS 4000
                (Ultrasonic Probe #312-9000)

           AUTOMATIC TANK GAUGING SYSTEM

 Leak rate of 0.2 gph with PD = 97.4% and PFA = 2.6% for 2 hour test.
 Leak rate of 0.2 gph with PD = 99.9% and PFA = 0.1 % for 4 hour test.

 0.1 gph. A leak is declared if the output of the measurement system
 equals or exceeds this threshold.

 Gasoline, diesel, aviation fuel, and fuel oil.  Other liquids may be tested after
 consultation with the manufacturer.

 Maximum of 15,000 gallons.
 Tank must be between 50 and 95% full.

 Minimum of 2 hours, 29 minutes between dejivery and testing.
 Minimum of 15 minutes between dispensing and testing.
 There must be no delivery during waiting time.

 Minimum of 2 hours to achieve PD = 97.4%  and PFA = 1.8%.
 Minimum of 4 hours to achieve PD = 99.9%  and PFA = 0.1 %.
 Test data are acquired and recorded by the microprocessor contained within the EMS
 console.
 Leak rate is calculated from data determined to be valid by statistical analysis.
 There must be no dispensing or delivery during test.

 Average for product is determined from the  measurement of the change in the speed
 of sound.

 Must be used to  detect water ingress.
 Minimum detectable water level in the tank is 1.045 inches.
 Minimum detectable water level change is 0.053 inch.

 Gain adjustment on probe must be checked annually and calibrated in
 accordance with  manufacturer's instructions.

 Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
lower head pressure).  Consistent testing at low levels could allow a leak to remain
undetected.
EPA leak detection regulations require  testing of the portion of the  tank system which
routinely contains product.                                         :
This is a longer version of model #312-9001.
Tidel Engineering, Inc.
2615 E. Belt Line Rd.
Carrollton, TX 75006
Tel: (800) 678-7577
                           Evaluator: Ken Wilcox Associates
                           Tel: (816) 443-2494

                           Date of Evaluation: 03/16/95
                                                234
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
tha method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                        Tide! Engineering, Inc.
                                                                               Revision Date: April 18,1997
 Certification:


 Leak Threshold:


 Applicability:


 Tank Capacity:


 Waiting Time:



 Test Period:
Temperature:


Water Sensor:



Calibration:


Comments:
      Tide! Environmental Monitoring System, EMS 4000
                (Ultrasonic Probe #312-9000)

           AUTOMATIC TANK GAUGING SYSTEM

 Leak rate of 0,1 gph with PD = 98.6% and PFA = 1.4% for a 5 hour test.
 Leak rate of 0.1 gph with PD = 99.7% and PFA = 0.3% for a 6 hour test.

 0.05 gph. A leak is declared if the output of the measurement system
 equals or exceeds this threshold.

 Gasoline, diesel, aviation fuel, and fuel oil.  Other liquids may be tested after
 consultation with the manufacturer.

 Maximum of 15,000 gallons.
 Tank must be between 50 and 95% full.

 Minimum of 2 hours, 29 minutes between delivery and testing.
 Minimum of 15  minutes between dispensing and testing.
 There must be no delivery during waiting time.

 Minimum of 5 hours to achieve PD =  98.6% and PFA = 1.4%.
 Minimum of 6 hours to achieve PD =  99.7% and PFA = 0.3%..
 Test data are acquired and recorded by the microprocessor contained within the EMS
 console.
 Leak rate is calculated from data determined to be valid by statistical analysis.
 There must be no dispensing or delivery during test.

 Average for product is determined from the measurement of the change in the speed
 of sound.

 Must be used to detect water ingress.
 Minimum detectable water level in the tank is 1.045 inches.
 Minimum detectable water level change is 0.053 inch.

 Gain adjustment on probe must be checked annually and calibrated in
 accordance with manufacturer's instructions.

 Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
lower head pressure).  Consistent testing at low levels could allow a leak to remain
undetected.
EPA leak detection regulations require testing of the  portion  of the tank system which
routinely contains product.
This is a longer version of model #312-9001.
Tidel Engineering, Inc.
2615 E.Beit Line Rd.
Carrollton, TX 75006
Tel: (800) 678-7577
                           Evaluator: Ken Wilcox Associates
                           Tel: (816) 443-2494

                           Date of Evaluation: 03/16/95
                                                235
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:


Applicability:


Tank Capacity:


Waiting Time:



Test Period:
Temperature:


Water Sensor:



Calibration:


Comments:
                                                         Revision Date: April 18,1997
                  Tidel Engineering, Inc.

    Tidel Environmental Monitoring System, EMS 4000
               (Ultrasonic Probe #312-9001)

          AUTOMATIC TANK GAUGING SYSTEM

Leak rate of 0.2 gph with PD = 99.9% and PFA = 0.1 %.                ;

0.1 gph. A leak is declared if the output of the measurement system
equals or exceeds this threshold.
                                                                r
Gasoline, diesel, aviation fuel, and fuel oil. Other liquids may be tested after
consultation with the manufacturer.

Maximum of 15,000 gallons.
Tank must be between 50 and 95% full.

Minimum of 2 hours, 23 minutes between delivery and testing.
Minimum of 15 minutes between dispensing and testing.
There must be no delivery during waiting time.

Minimum of 2 hours.                                         .
Test data are acquired and recorded by the microprocessor contained within the EMS
console.
Leak rate is calculated from data determined to be valid by statistical analysis.
There must be no dispensing or delivery during test.

Average for product is determined from the measurement of the change in the speed
of sound.

Must be used to detect water ingress.
Minimum detectable water level in the tank is 1.045 inches.
Minimum detectable water level change is 0.053 inch.

Gain adjustment on probe must be checked annually and calibrated in
accordance with manufacturer's instructions.

Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
 lower  head pressure).  Consistent testing at low  levels could allow a leak to remain
 undetected.
 EPA leak detection regulations require  testing of the portion of the tank  system  which
 routinely contains product.
 This is a shorter version of model #312-9000.
 Tidel Engineering, Inc.
 2615 E. Belt Line Rd.
 Carrollton, TX 75006
 Tel: (800) 678-7577
                            Evaluator: Ken Wilcox Associates
                            Tel: (816) 443-2494

                            Date of Evaluation: 03/16/95
                                                 236
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 thamettwd or equipment Equipment should be installed and operated in accordance with all applicable laws and regulatjons.

-------
 Certification:

 Leak Threshold:


 Applicability:


 Tank Capacity:


 Waiting Time:



 Test Period:
 Temperature:


 Water Sensor:



 Calibration:


 Comments:
                                                           Revision Date: Aprtl 18,1997
                   Tidel Engineering, Inc.

      Tide! Environmental Monitoring System, EMS 4000
                (Ultrasonic Probe #312-9001)

           AUTOMATIC TANK GAUGING SYSTEM

 Leak rate of 0.1 gph with PD = 97.9% and PFA = 2.1%.

 0.05 gph. A leak is declared if the output of the measurement system
 equals or exceeds this threshold.

 Gasoline, diesel, aviation fuel, and fuel oil. Other liquids may be tested after
 consultation with the manufacturer.

 Maximum of 15,000 gallons.
 Tank must be between 50 and 95% full.

 Minimum of 2 hours, 23 minutes between delivery and testing.
 Minimum of 15 minutes between dispensing and testing.
 There must be no delivery during waiting time.

 Minimum of 4 hours.
 Test data are acquired and recorded by the microprocessor contained within the EMS
 console.
 Leak rate is calculated from data determined to be valid by statistical analysis.
 There must be no dispensing or delivery during test.

 Average for product is determined from the measurement of the change in the speed
 of sound.                   .

 Must be used to detect water ingress.
 Minimum detectable water level in the tank is 1.045 inches.
 Minimum detectable water level change is 0.053 inch.

 Gain adjustment on probe must be checked annually and calibrated in
 accordance with manufacturer's instructions.

 Not evaluated using manifold tank systems.
 Tests only portion of tank containing product.
 As product level is lowered, leak rate in a leaking tank decreases (due to
 lower head pressure).  Consistent testing at low levels could allow a leak to remain
 undetected.
 EPA leak detection  regulations  require testing of the portion of the tank  system which
 routinely contains product.
This is a shorter version of the model #312-9000.
Tidel Engineering, Inc.
2615 E. Belt Line Rd.
Carrollton, TX 75006
Tel: (800) 678-7577
                           Evaluator: Ken Wilcox Associates
                           Tel: (816) 443-2494

                           Date of Evaluation: 03/16/95
                                                237
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                              Revision Date: April 18,1997
                                       Tidel Engineering, Inc.

                                             EMS-3500
                          with Liquid Discriminatory Probes Part 301-0635

                             LIQUID-PHASE INTERSTITIAL DETECTOR

Detector:

Output type:               qualitative
Sampling frequency:       continuous
Operating principle:        electrical conductivity/hydrocarbon sensitive polymer

Test Results:"
                                        unleaded gasoline             water
Accuracy (%)                            100                          100
Response time (min)                     3.59                         0.96
Recovery time (min)                     13.18                        <1
Product activation height (crn)             1.76                         0.49
Lower detection limit (cm)                 4.19                         1-52

* At a flow rate of 0.04 gal/hr in a 2.54 cm diameter test chamber.

Specificity Results:
Activated: diesel fuel (at liquid height of 1.78 cm), synthetic fuel (at 2.30 cm), heating oil #2 (at ,2.30 cm).

Comments:
Test procedures used were Carnegie Mellon Research Institute's "Test Procedures for Third Party
Evaluation of Leak Detection Methods: Point Sensor Liquid Contact Leak Detection Systems":!
Final Report - November 11,1991.
Detector is reusable.
 Tidel Engineering, Inc.                           Evaluator: Carnegie Mellon Research Institute
 2615 E. Belt Line Rd.                            Tel: (412) 268-3495
 Carrollton, TX 75006
 Tel: (800) 678-7577                             Date of Evaluation: 01/29/93
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the; method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                                Revision Date-. April 1S,1997
                                        Tidel Engineering, Inc.

                                              EMS-3500
                             with Containment Sump Probes Part 301-0642

                               LIQUID-PHASE INTERSTITIAL DETECTOR

  Detector:

  Output type:               qualitative
  Sampling frequency:       continuous
  Operating principle:        magnetic switch/float and hydrocarbon sensitive polymer

  Test Results: *
                                          unleaded
                                          gasoline	water	
  A        ,«,v                                                   low                  high
  Accuracy {%)                             100                   100                  100
  Response time (min)                      6.39                  4.76                 412**
  Recovery time (min)                       >60                   <1                   <;i
  Product activation height (cm)              2.27                  4.31                  1922
  Lower detection limit (cm)                  2.32                  4.31                  N/A***


 * At a flow rate of 0.89 gal/hr in test chamber of diameter 12.6 cm.
 ** Larger test chamber and flow rate of 1.51 gal/hr.
 *** See glossary.

 Specificity Results:
 Activated at 2.27 cm height: diesel fuel, synthetic fuel, heating oil #2.

 Comments:
 Test procedures used were Carnegie Mellon Research Institute's "Test Procedures for Third Party
 Evaluation of Leak Detection Methods: Point Sensor Liquid Contact Leak Detection Systems"-
 Final Report - November 11,1991.
 Probe was tested to determine its capability of detecting hydrocarbons floating on water
 A Lower detection  limit thickness of 0.04 cm  was declared, on average, in 16  minutes, 41 seconds with
 recovery time averaging 12 minutes, 55 seconds.
     En9'neei?n9'lnc-                           Evaluator: Carnegie Mellon Research Institute
2615 E. Belt Line Rd.                            Tel: (412) 268-3495
Carrollton, TX 75006
Tel: (800) 678-7577                             Date of Evaluation: 02/17/93
                                                239
2SUSSH? °" **? HSt'! "? *° be °°nif U{|d as m endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or eqUIpment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                              Revision Date: April 18,1997
                                       Tidel Engineering, Inc.

                                             EMS-3500
                                   Tidel Detector No. 301-0752-001

                              LIQUID-PHASE INTERSTITIAL DETECTOR

Detector:

Output type:               qualitative
Sampling frequency:       continuous
Operating principle:        float switch

Test Results:"
                                50 wt% Ethylene glycol in water       30 wt% Calcium chloride in water
                                up.               down             up.               down
Accuracy (%)                    100              100               100               100
Response time (min)             21.91            30.10             22.27             31.08
Recovery time (min)             <1               <1                <1               <1
Product activation height (cm)     28.92            2.75              28.82             2.48

" At a flow rate of 0.26 gal/hr in test chamber.

Specificity Results:
Not applicable

Comments:
Intended to monitor the level of either ethylene glycol or calcium chloride solutions in interstitial or annular
space of a double-walled tank.
Activates an alarm if any significant gain or loss of solution occurs.                         i
Test procedures used were modified by the evaluator from Carnegie Mellon  Research Institute's "Test
Procedures for Third Party Evaluation of Leak Detection Methods: Point Sensor Liquid Contact Leak Detection
Systems": Rnal Report - November 11,1991.
Detector is reusable.
Tidel Engineering, Inc.                            Evaluator: Carnegie Mellon Research Institute
2615 E. Belt Line Rd.                             Tel: (412) 268-3495
Carrollton, TX 75006
Tel: (800) 678-7577                              Date of Evaluation: 04/20/93



                                                 240
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                                Revision Date: April 18, 1997
                                        Tidel Engineering, Inc.

                                               EMS-3500
                               with Monitoring Well Probe Part 301-0641

                         LIQUID-PHASE OUT-OF-TANK PRODUCT DETECTOR

 Detector:

 Output type:               qualitative
 Sampling frequency:       continuous
 Operating principle:        conductivity via resistor ladder network

 Test Results:
                                             unleaded                  synthetic
                                             gasoline                   gasoline
 Accuracy (%)                                100                       100
 Detection time (min:sec)                      00:04                     00:07
 Fall time (min:sec)                           <01:00                    <01:00
 Lower detection limit (cm)                     0.32                      0.32

 Specificity Results:
 Activated (100%): unleaded gasoline, synthetic gasoline, n-hexane, diesel fuel, jet-A fuel JP-4 jet fuel
 toluene, xylene(s).

 Comments:
 EPA and many states require detection of 1/8 inch (0.32 cm) of product for groundwater monitoring
 Detector is reusable.
Tidel Engmeenng, Inc.                            Evaluaton Carnegie Mellon Research Institute
2615 E. Belt Line Rd.                             Tel: (412)268-3495
Carrollton, TX 75006
Tel: (800) 678-7577                              Date of Evaluation: 02/02/93
                                                241
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                              Revision Date: April 18,1997
                                       Tidel Engineering, Inc.

                                             EMS-3500
                                  with Sheen Probes Part 301-0687

                        LIQUID-PHASE OUT-OF-TANK PRODUCT DETECTOR

Detector:

Output type:               qualitative                                                  !
Sampling frequency:        continuous
Operating principle:        electrical conductivity/hydrocarbon sensitive polymer

Test Results:                                                                   .     •
                                           unleaded                         synthetic
                                           gasoline                          gasoline
Accuracy (%)                               100                              ioo
Detection time (mircsec)                     07:45                            03:35
Fall time (min:sec)                          18:01                            16:57
Lower detection limit (cm)                   0.02                             0.04

Specificity Results:                                                             ,,,-,„•.,  •
Activated (100%): unleaded gasoline, synthetic gasoline, n-hexane, diesel fuel, jet-A fuel, JP-4 jet fuel,
toluene, xylene(s).

Comments:                                                               ,          ..  .
EPA and many states require detection of 1/8 inch (0.32 cm) of product  for groundwater monitoring.
Detector is resuable.
 Tidel Engineering, Inc.                            Evaluator: Carnegie Mellon Research Institute
 2615 E. Belt Line Rd.'                            Tel: (412) 268-3495
 Carrollton, TX 75006                                           .         '
 Tel: (800) 678-7577                              Date of Evaluation: 01/31/93


                                                 242
 ADoearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee pf the performance of
 the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                                Revision Date'. April 18,1997
                                            Tidel Engineering, Inc.

                                               EMS-3500
                                      Tidel Detector No. 301-0762

                         LIQUID-PHASE OUT-OF-TANK PRODUCT DETECTOR

 Detector:

 Output type:               qualitative
 Sampling frequency:       continuous
 Operating principle:        electrical conductivity/hydrocarbon sensitive polymer

 Test Results:
                                             unleaded                      synthetic
                                             gasoline                       gasoline
 Accuracy (%)                                100                           100
 Detection time (min:sec)                      9:31                           7:05
 Fall time (min:sec)                           55:42                         17:04
 Lower detection limit (cm)                     0.04                          0.08

 Specificity Results:
 Activated:  unleaded gasoline, synthetic gasoline, n-hexane, diesel fuel, jet-A fuel, toluene, xylene(s).

 Manufacturer's specifications:
 Groundwater probe used to detect free floating hydrocarbons in monitoring wells.

 Comments:
 EPA and many states require detection of 1/8 inch (0.32 cm) of product for groundwater monitoring.
 Detector is reusable.
Tidel Engineering, Inc.                           Evaluator: Carnegie Mellon Research Institute
2615 E. Belt Line Rd.                             Tel: (412) 268-3495
Carrollton, TX 75006
Tel: (800) 678-7577                              Date of Evaluation: 03/18/93
                                                 243
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Detector:

Output type:
Sampling frequency:
Operating principle:

Test Results:
                                       Tidel Engineering, Inc.

                          Tide! Detector No. 301-0324-001 and 301-0325-001

                        LIQUID-PHASE OUT-OF-TANK PRODUCT DETECTOR
qualitative
continuous
electrical conductivity
                                                                               Revision Date: April 18,1997
Accuracy (%)
Detection time (sec)
Fall time (sec)
Lower detection limit (cm)
               unleaded
               gasoline
               100
               2
               1
               0.16-0.32
synthetic
gasoline
100
2
2
0.16-0.32
JP-4
jet fuel
100
1
2
0.16-0.32
Specificity Results:
Activated: unleaded gasoline, synthetic gasoline, n-hexane, diesel fuel, jet-A fuel, JP-4 jet fuel, toluene,
xylene(s).

Manufacturer's specifications:
Detector No.301-0324-001
Application:           Liquid sensor, water, used in 4" monitoring well.
Senson              Magnetism and conductivity pins.
Detection Range:     1/8" floating product on groundwater or 1.5" free product.

Detector No.301-0325-001
Application:           Liquid sensor, water or hydrocarbon used in reservoir, sump or pipeline trench.
Sensor              Magnetism and conductivity pins.
Detection Range:     1/8" floating product on groundwater or 1.5" free product.

Comments:
EPA and many states require detection of 1/8 inch (0.32 cm) of product for groundwater monitoring.
Detector is reusable.
Tidel Engineering, Inc.
2615 E. Belt Line Rd.
Carrollton, TX 75006
Tel: (800) 678-7577
                      Evaluator: Radian Corp.
                      Tel: (512) 454-4797

                      Date of Evaluation: 07/08/91
                                                244                                  :
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                                Revision Date: April 18,1997
                                         Tide! Engineering, Inc.

                           Tide! Detector No. 301-0326-001 and 301-0326-002

                          LIQUID-PHASE OUT-OF-TANK PRODUCT DETECTOR

 Detector:

 Output type:               qualitative
 Sampling frequency:       continuous
 Operating principle:        electrical conductivity

 Test Results:
                                   unleaded               synthetic               jp-4
                                   gasoline                gasoline               jet fuel
 Accuracy (%)                      100                    100                   100
 Detection time (sec)                4                      7                      2
 Fall time (sec)                     3                      4                      4
 Lower detection limit (cm)           0.08-0.32               0.08-0.32               0.08-0.32

 Specificity Results:
 Activated: unleaded gasoline, synthetic gasoline, n-hexane, diesel fuel, jet-A fuel, JP-4 jet fuel  toluene
 xylene(s).                                                                                    '

 Manufacturer's specif ications:
 Detector No.301-0326-001
 Application:          Liquid sensor, water, used in 2" monitoring well.
 Sensor:             Magnetism and conductivity pins.
 Detection Range:     1/8" floating product on groundwater or 2.5" free product.

 Detector No.301-0326-002
 Application:          Liquid sensor, water, used in annulus of double wall steel tanks.
 Sensor:             Magnetism and conductivity pins.
 Detection Range:     1/8" floating product on groundwater or 2.5" free product.

 Comments:
 EPA and many states require detection of 1/8 inch (0.32 cm) of product for groundwater monitoring
 Detector is reusable.
Tidel Engineering, Inc.                           Evaluator: Radian Corp
2615 E. Belt Line Rd.                             Tel: (512) 454-4797
Carrollton, TX 75006
Tel: (800) 678-7577                              Date of Evaluation: 07/08/91
                                                 245
Appearance on this list is not to be construed as an endorsement fay any regulatory'agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                                                              Revision Date: April 18,1997
                                      Tidel Engineering, Inc.

                                             EMS-3000
                                    301-0328-001,301-0330-001

                        VAPOR-PHASE OUT-OF-TANK PRODUCT DETECTOR
Detector:
Output type:
Sampling frequency:
Operating principle:
Test Results:

Accuracy (%)
Detection time (sec)
Fall time (min:sec)
Lower detection limit (ppm)
qualitative
continuous
adsistor
unleaded
gasoline
100
91
5:39
10 to 100
unleaded
gasoline
100
91
5:39
10 to 100
synthetic
gasoline
100
65
4:23
10 to 500
JP-4
jet fuel
100
86
9:38
10 to 50
Specificity Results:
Activated: unleaded gasoline, synthetic gasoline, JP-4 jet fuel, toluene, xylene(s)
Not Activated: n-hexane.

Comments:
Test procedures used were Radian Corporation's draft report "Development of Procedures to;
Assess the Performance of External Leak Detection Devices: Vapor-Phase ASTM-
Formatted Methods," June 29,1990.
 Tidel Engineering, Inc.
 2615 E. Belt Line Rd.
 Carrollton, TX 75006
 Tel: (800) 678-7577
Evaluator: Radian Corp.
Tel: (512) 454-4797

Date of Evaluation: 07/08/91
                                                 246.
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                              Revision Date: April 18,1997
                                       Tidel Engineering, Inc.

                                             EMS-3500
                               Vapor Sensor Probe Part No. 301-0634

                        VAPOR-PHASE OUT-OF-TANK PRODUCT DETECTOR

 Detector:

 Output type:               qualitative
 Sampling frequency:       continuous
 Operating principle:        adsistor

 Test Results:
                                          unleaded          synthetic
                                          gasoline           gasoline
 Accuracy* (%) w                            100               100
 Detection time" (min:sec)                   2:46    ^         1:41
 Fall time* (hr:min:sec)                      >1:00:00*"         >1:00:00**
 Lower detection limit (ppm)                 100               500

 * For tests conducted with 1000 ppm of test gas.
 ** The vapor sensor probe was recalibrated when it did not recover after 1 hour, from exposure to test vapors.

 Specificity Results:
 Activated: unleaded gasoline, synthetic gasoline, n^hexane, JP-4 jet fuel, toluene, xylene(s).

 Manufacturer's specifications:
 Vapor sensor probe for use in normally dry monitoring wells to detect hydrocarbon vapors.
 Can be used in monitoring wells up to 20 feet deep.
 The probe will alarm if it comes in contact with water and must be removed immediately to prevent damage to
 probe.

 Comments:
 Test procedures used were Radian Corporation's draft report "Development of Procedures to
 Assess the Performance of External Leak Detection Devices: Vapor-Phase ASTM-Formatted
 Methods," June 29,1990.
Tide! Engineering, Inc.                           Evaluator: Carnegie Mellon Research Institute
2615 E.Beit Line Rd.           .                 Tel: (412) 268-3495
Carrollton, TX  75006
Tel: (800) 678-7577                             Date of Evaluation: 03/18/93
                                                247
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:


Applicability:

Specification:
                                                                             Revision Date: April 18,1997
                                          Tokheim Corp.

                      Tokheim Pressure Monitor, Models PM101 and 585A-PM

                         AUTOMATIC MECHANICAL LINE LEAK DETECTOR

                  Leak rate of 3.0 gph with PD=100% and PFA=0%.

                  2.25 gph.  A leak is declared if the output of the measurement system equals or exceeds
                  this threshold.

                  Gasoline, diesel, and alcohols.

                  System tests  pressurized fiberglass and steel pipelines.
                  Tests are conducted at 150% operating pressure.
Pipeline Capacity: Maximum of 78 gallons.

Waiting Time:
                  None between delivery and testing.
                  None between dispensing and testing.

Test Period:      Response time is 4 seconds.

System Features: Permanent installation on pipeline.
                  Automatic testing of pipeline.
                  Preset threshold.
                  Single test to determine if pipeline is leaking.
                  Restricted flow to dispenser if leak is declared.

Calibration:       System must be checked semi-annually and calibrated if necessary in
                  accordance with manufacturer's instructions.

Comments:       No longer manufactured by Tokheim Corporation.
Tokheim Corp.
10501 Corporate Dr.
Fort Wayne, IN 46801-0360
Tel: (219) 423-2552
                                             Evaluator: Vista Research
                                             Tel: (415) 966-1171

                                             Date of Evaluation: 11/02/90
                                                248
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
 Certification:

 Leak Threshold:

 Applicability:


 Waiting Time:
 Tracer Dosage:
 Permeability:


 Probe:



 Comments:
                                                         Revision Date: Aprfll 8,1997
                 Tracer Research Corp.

                 Tracer Tight Line Test

            LINE TIGHTNESS TEST METHOD

 Leak rate of 0.1 gph with PD=100% and PFA=0.0%.

 A leak is declared when tracer chemical is detected outside of the pipeline.

 All fluid petroleum products and any other fluid with which an acceptable
 tracer is compatible.

 Minimum is normally 2 weeks after injection of the tracer into the tank, but
 must be no less than 1 week, and no more than 4 weeks. For very large systems,
 several days or weeks may be required to circulate tracer-labeled fuel through all
 parts of the system. Under these circumstances the 1 week waiting time begins
 after the tracer reaches the pipeline being tested.

 Dosage of tracer is a factor of tank size and frequency of tank refills according to
 manufacturer's recommendations.
 Tracer labeled product should be circulated through the pipeline before test
 period begins.
 Pressurized pipeline must be brought up to operating pressure
 or operated on a daily basis.

 Soil permeability must be sufficient for transport of tracer through backfill
 (greater than 1 Darcy).

 Radius of influence of each probe is 10 feet. Locating pipelines should be done
 according to manufacturer's operating procedures for pipeline test results to be
 valid.

 Presence of frozen, saturated soil surrounding the pipeline may limit
effectiveness of test method.
 Presence of groundwater surrounding pipeline may also  reduce effectiveness of
test method (e.g. when applied to pipelines containing water-miscible products or
products whose specific gravity is greater than 1).
Tracer Research Corp.
3755 N. Business Center Dr.
Tucson, AZ 85705
Tel: (800) 989-9929
                                 Evaluaton Ken Wilcox Associates (1991)
                                 Tel: (816) 443-2494
                                 Control Strategies Engineering (1992)
                                 Tel: (602) 682-8726
                                 Dates of Evaluation: 10/04/91 and 05/92
                                                249
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:

Applicability:


Tank Capacity:


Waiting Time:


Tracer Dosage:


Permeability:


Probe:


Groundwater:
Comments:
                                                            Revision Date: April 18,1997
                    Tracer Research Corp.

                         Tracer Tight

NON-VOLUMETRIC TANK TIGHTNESS TEST METHOD (TRACER)

    Leak rate of 0.1 gph with PD=100% and PFA=0%.

    A leak is declared when tracer chemical is detected outside of the tank.

    All fluid petroleum products and any other fluid with which an acceptable
    tracer is compatible.

    This test method is not limited by capacity, however only portions of the tank
    system within 10 feet of sample collection point are tested.          |

    Ranges from 7 to 30 days (generally two weeks) after injection of the tracer into the
    tank.

    Dosage of tracer is a factor of tank size and frequency of tank refills according to
    manufacturer's recommendations.                               \

    Soil permeability must be sufficient for transport of tracer through bac'kfill
    (greater than 1 Darcy).                                          ;

    Radius of influence of each probe is 10 feet. Probes must be placed such that all
    possible locations and orientations are within the circle of influence.

    Depth to groundwater in backfill must be determined.  In order for a
    leak below groundwater to be indicated by the release of the tracer compound, the
    hydrostatic pressure of product in tank must exceed the hydrostatic pressure of
    groundwater during test. This is done by  maintaining product level at least 6
    inches over groundwater for a minimum 17 hours during first three days following
    addition of tracer to tank.                                       j
    In high groundwater situations, this method  may be supplemented with
    measurement of water ingress, at the discretion of the regulatory agency.

    Presence of frozen, saturated soil above  bottom of tank may limit
    effectiveness of test method.
    Presence of groundwater above bottom of tank may also limit      j
    effectiveness of test method (e.g. when applied to tanks containing water-
    miscible products or products whose specific gravity is greater than 1).
Tracer Research Corp.
3755 N. Business Center Dr.
Tucson, AZ 85705
Tel: (800) 989-9929
                          Evaluator: Ken Wilcox Associates (1990)
                          Tel: (816) 443-2494
                          Control Strategies Engineering (1992)
                          Tel: (602) 682-8726
                          Dates of Evaluation: 10/04/90 and 05/92
                                                250
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                             Revision Date: April 18, 1997
                                      Tracer Research Corp.

                                           Tracer Tight

                       VAPOR-PHASE OUT-OF-TANK PRODUCT DETECTOR

Detector:
Output type:              quantitative
Sampling frequency:       intermittent
Operating principle:        chromatographic (looks for chemical tracer)

Test Results:
Hydrocarbon detector (GC/FID)
                             xvlene   benzene   2-methvlbutane
Accuracy (%)                 <20     <20       <20
Bias(%)                     000
Detection time (min)           <0.01    <0.01      <0.01
Fall time (min)                <0.01    <0.01      <0.01
Lower detection limit (ppm)     20       20        20

Tracer Detector
                             xvlene   benzene   2-methvlbutane   gasoline
Accuracy (%)                 N/R     N/R       N/R             N/R
Bias(%)                     N/R     N/R       N/R             N/R
Detection time (min)           N/R     N/R       N/R             N/R
Fall time (min)                N/R     N/R       N/R             N/R
Lower detection limit (ppm)     N/R     N/R       N/R             N/R

* See glossary.

Specificity Results:
See above.

Manufacturer's specifications:
Soil permeability at the site must exceed 1 Darcy.

Comments:
Test procedures used were a combination of EPA's "Standard Test Procedures for Evaluating Leak Detection
Methods: Nonvolumetric Tank Tightness Testing Methods," March 1990 and "recognized national
standard of GC/FID hydrocarbon measurements."
Method utilizes a chromatographic  measurement of a  vapor sample  collected monthly from  the  site.
Hydrocarbon vapors and the added chemical tracer can be measured independently.
During  evaluations, the tracer chemical was declared 159 out of 161 trials.
System evaluation included detectors,  analytical procedures, sample containers,  sampling procedures,
sampling system, monitoring well materials and installations, and tracer mobility.
 Tracer Research Corp.                              Evaluator: Control Strategies Engineering
 3755 N. Business Center Dr.                         Tel: (602) 682-8726
 Tucson, AZ 85705
 Tel: (800)989-9929                                 Date of Evaluation: 05/05/92



                                                251
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:


Applicability:

Specification:


Pipeline Capacity:

Waiting Time:


Test Period:



Temperature:

Calibration:
                                                           Revision; Date: April 18,1997
                 Triangle Environmental, Inc.

                 TEI Model LT-3, Version 1.0

               LINE TIGHTNESS TEST METHOD

Leak rate of 0.1 gph with PD=100.0% and PFA=0%.

0.05 gph. A leak is declared if the output of the measurement system equals or exceeds
this threshold.

Gasoline, diesel, aviation fuel, fuel oils #4 and #6, waste oil, and solvents.

System tests fiberglass and steel pipelines.
Tests are conducted at 150% operating pressure.
                                                                 i
Maximum of 80 gallons.

None between delivery and testing.
Minimum of 15 minutes between dispensing and testing.

Minimum of 15 minutes      .                           ' '  .         ]
Test data are acquired and recorded manually.
Manual calculations are performed by the operator on site.

Product change per hour must be less than 4 degrees F.

Sensors  must be checked annually and calibrated semi-annually in accordance with
manufacturer's instructions.
Triangle Environmental, Inc.
172 W. Verdugo Ave.
Burbank, CA 91502-2132
Tel: (818) 840-7020
                            Evaluator: United States Testing Company
                            Tel: (213) 723-7181

                            Date of Evaluation: 03/03/92
                                                252
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
thomolhod or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:



Applicability:

Tank Capacity:


Waiting Time:

Test Period:

Test Pressure:


Temperature:

Groundwater:



Calibration:

Comments:
    .                                                        Revision Date: ApriMB, 1997
                 Triangle Environmental, inc.

           TEI Ullage Test, Version 1.0 (Vacuum Test)

NON-VOLUMETRIC TANK TIGHTNESS TEST METHOD (ULLAGE)

     Leak rate of 0.1 gph with PD=100% and PFA=0%.

     A leak is declared when an increase in the acoustic noise level
     (above background) of the tank under vacuum is detected due to air or
     water ingress.

     Gasoline, diesel, aviation fuel, fuel oil #4, solvents, and light liquids.

     Maximum ullage volume is 15,000 gallons.
     Microphone should be located within 24 feet of all points within the ullage.

     None if test is conducted after the underfilled tank test.

     Minimum of 1 minute.

     Vacuum of 1 psi must be maintained in ullage.
     If vacuum cannot be maintained, see manufacturer's instructions.

     Acoustic signal is independent of product temperature.

     Depth to the groundwater in backfill must be determined.  If groundwater is
     above product level, vacuum must be adequate to detect an ingress of
     groundwater.

     Sensors must be calibrated before each test.

     Manifold tank systems must be isolated prior to test.
     Evaluated using unleaded gasoline.
     Tests only ullage portion of tank.
     Product-filled portion of tank must be tested using an underfilled test method.  .
     Microphone was 24 feet away from the leak source during evaluation.
     Headphones are used during test to listen for the signal of air ingress.
     Noise signals are tape recorded (not digitally recorded).
     Test method may not be effective in some backfill (such as clay) because it
     may plug holes in tank.
     If soil is saturated with product, air or water ingress may not be declared by
     vacuum test.  A well point in backfill may help identify presence of this condition.
Triangle Environmental, Inc.
172 W. Verdugo Ave.
Burbank, CA 91502-2132
Tel: (818) 840-7020
                             Evaluator: United States Testing Co. Inc.
                             Tel: (213) 723-7181

                             Date of Evaluation: 05/05/93
                                                253
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:


Applicability:

Tank Capacity:



Waiting Time:

Test Period:

Test Pressure:


Temperature:

Groundwater:


Calibration:

Comments:
                                                           Revision Date: April 18,1997
                  Triangle Environmental, Inc.

                 TEI System 5000, Version 1.0

NON-VOLUMETRIC TANK TIGHTNESS TEST METHOD (VACUUM)

     Leak rate of 0.1 gph with PD=100% and PFA=0%.

    A leak is declared when the acoustic noise level of the tank under vacuum
    is greater than the calibrated background acoustic noise level (prior to evacuation).

     Gasoline, diesel, aviation fuel, fuel oil #4,  solvents and light liquids.  -

     Maximum of 20,000 gallons.
     Tank must be minimum 14% full.                                 j
     Microphone should be located within 24 feet of all points within the tank.
                                                  i
     None between delivery and testing.

     Minimum of 1 minute.

     Vacuum of 1 psi must be maintained in ullage.
     If vacuum cannot be maintained, see manufacturer's instructions.

     Acoustic signal is independent of product temperature.

     Depth to groundwater in backfill must be determined.
     This method cannot be used if groundwater is above bottom of tank.

     Sensor must be calibrated before each test.

     Manifold tank systems must be isolated prior to test.
     Evaluated using unleaded gasoline.                              \
     Microphone was 24 feet away from the leak source during evaluation;
     Headphones are used during test to listen for the signal of air ingress.
     Noise signals are tape recorded (not digitally recorded).            I
     Vacuum test method may not be effective in some backfill (such as clay) because it
     may plug holes in tank.
      If soil is saturated with product, air or water ingress may npt be declared by
     vacuum test. A well point in backfill may help identify presence of this condition.
 Triangle Environmental, Inc.
 172W.VerdugoAve.
 Burbank, CA 91502-2132
 Tel: (818) 840-7020
                            Evaluator. United States Testing Co., Inc.
                            Tel: (213) 723-7181

                            Date of Evaluation: 02/04/93
                                                254
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 tha method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:


Applicability:

Tank Capacity:


Waiting Time:


Test Period:
Temperature:

Groundwater:



Calibration:

Comments:
                                                          Revision Date-, ftpffi 18,1997
                Triangle Environmental, Inc.

                TEI System 4000, Version 1.0

VOLUMETRIC TANK TIGHTNESS TEST METHOD (UNDERFILL)

 Leak rate of 0.1 gph with PD=99% and PFA=4.8%.

 0.05 gph.  A leak is declared if the output of the measurement system equals or
 exceeds this threshold.

 Gasoline, diesel, fuel oil, waste oil, and solvents.

 Maximum of 15,000 gallons.
 Tank must be between 50 and 100% full.

 Minimum of 6 hours between delivery and testing.
 There must be no dispensing  or delivery during waiting time.

 Minimum is determined by a computer.
 Average was 4 hours during the evaluation.
 Leak rate is calculated from last 2 hours of test period data.
 Test data are acquired and recorded by computer.
 There must be no dispensing  or delivery during test.

 Average for product is determined by a minimum of 3 thermistors.

 Depth to groundwater in backfill must be determined.  If groundwater is above
 bottom of tank, product level must be adjusted to provide a minimum net pressure
 of 1 psi at bottom of tank during test.

 Thermistors must be calibrated before each test.

 Not evaluated using manifold tank systems.
 Tests only portion of tank containing product.
 As product level is lowered, leak rate in a leaking tank decreases (due to
 lower  head pressure).   Consistent testing at  low levels could allow a leak to remain
 undetected.
 EPA leak detection regulations require testing of the  portion of the tank system which
 routinely contains product.
 May also be used as an overfill test method.
Triangle Environmental, Inc.
172 W. Verdugo Ave.
Burbank, CA 91502-2132
Tel: (818) 840-7020
                            Evaluator. United States Testing Company, Inc.
                            Tel: (213) 723-7181

                            Date of Evaluation: 04/02/91
                                                255
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
 Certification:

 Leak Threshold:


 Applicability:

 Tank Capacity:


 Waiting Time:



 Test Period:




 Temperature:


 Water Sensor:



 Calibration:


 Comments:
                                                            Revision Date: April 18,1997
              Universal Sensors and Devices, Inc.

                           TICS-1000
                    (Magnetostrictive Probe)
             AUTOMATIC TANK GAUGING SYSTEM

 Leak rate of 0.2 gph with PD = 96.6% and PFA = 3.4%.

 0.1 gph. A leak is declared if the output of the measurement system equals or exceeds
 this threshold.

 Gasoline, diesel, aviation fuel, and solvents.

 Maximum of 15,000 gallons.
 Tank must be minimum 90% full.

 Minimum of 8 hours between delivery and testing.
 None between dispensing and testing.                                j •   .
 There must be no delivery during waiting time.

 Minimum of 6 hours.
 Test data are acquired and recorded by a microprocessor.
 Leak rate is calculated from average of subsets of all collected data.
 There must be no dispensing or delivery during test.

 Average for product is determined by a minimum of 5 resistance temperature
 detectors (RTDs).

 Must be used to detect water ingress.
 Minimum detectable water level in the tank is 0.83 inch.
 Minimum detectable water level change is 0.0116 inch.

 RTDs and probe must be checked and calibrated in accordance with
 manufacturer's instructions.

 Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to   J
 lower head pressure).  Consistent testing at low levels could allow  a leak to  remain
undetected.                                                        I
 EPA leak detection  regulations require  testing  of the portion of  the tank system which
 routinely contains product.                                           !
Universal Sensors and Devices, Inc.
9205 Alabama Ave., Unit C
Chatsworth, CA  91311
Tel:  (818)988-7121
                             Evaluator: Ken Wilcox Associates
                             Tel: (816) 443-2494

                             Date of Evaluation: 08/20/93
                                                256
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:



Leak Threshold:


Applicability:


Tank Capacity:




Waiting Time:


Test Period:



Temperature:

Water Sensor:



Calibration:


Comments:
                                                           Revision Date: April 18,1997
              Universal Sensors and Devices, Inc.

                           LTC-1000
                    (Mass Buoyancy Probe)

      LARGE TANK AUTOMATIC TANK GAUGING SYSTEM

Leak rate of 1.4 gph with PD = 97.2% and PFA = 2.8%.
This leak rate does not meet EPA requirements for monthly monitoring (0.2 gph) or tank
tightness testing (0.1  gph).

0.7 gph.  A leak is declared if the output of the measurement system equals or exceeds
this threshold.

Gasoline, diesel, aviation fuel, fuel oil #4, and solvents.
Other liquids may be tested after consultation with the manufacturer.

Maximum of 2,000,000 gallons.  Application of this method for larger tanks is currently
under review to determine correct scalling  factors for leak rate, threshold and test time
versus tank size.
Tank must be minimum 90% full.

Minimum of 3 hours, 42 minutes between delivery and testing.
None between dispensing and testing.

Minimum of 49 hours.
Test data are acquired and recorded by a computer.
There must be no dispensing or delivery during test.

System does not require measurement of product temperature.

System does not use a water probe.
Water ingress is detected by an increase in  total mass of product in the tank.
To monitor water continuously, a separate water sensing probe must be installed.

The mass bouyancy probe must be checked and calibrated in accordance with
manufacturer's instructions.

Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
lower head pressure).   Consistent testing  at low levels could allow a leak  to  remain
undetected.
EPA leak detection regulations require testing  of the portion of the  tank system which
routinely contains product.
Universal Sensors and Devices, Inc.
9205 Alabama Ave., Unit C
Chatsworth, CA  91311
Tel: (818)988-7121
                             Evaluator: Ken Wilcox Associates
                             Tel: (816) 443-2494

                             Date of Evaluation: 05/17/96
                                                257
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:



Leak Threshold:


Applicability:


Tank Capacity:




Waiting Time:


Test Period:



Temperature:

Water Sensor:



Calibration:


Comments:
                                                           Revision Date: April 18,1997
              Universal Sensors and Devices, Inc.

                          LTC-2000
                 (Differential Pressure Probe)

     LARGE TANK AUTOMATIC TANK GAUGING SYSTEM

Leak rate of 3.0 gph with PD = 98.8% and PFA = 1-2%.
This leak rate does not meet EPA requirements for monthly monitoring (0.2 gph) or tank
tightness testing (0.1 gph).

1.5 gph.  A leak is declared if the output of the measurement system equals or exceeds
the threshold.

Gasoline, diesel, aviation fuel, fuel oil #4, and solvents.
Other liquids may be tested after consultation with the manufacturer.

Maximum of 2,000,000 gallons.
Application of this method for larger tanks is currently under review to determine correct
scaling factors for leak rate, threshold and test time versus tank size.
Tank must be minimum 90% full.

Minimum of 3 hours, 30 minutes between delivery and testing.
None between dispensing and testing.

Minimum of 48 hours, 18 minutes.
Test data are acquired and recorded by a computer.
There must be no dispensing or delivery during test.

System does not require measurement of product temperature.

System does not use a water probe.
Water ingress is detected by a change in  pressure at the bottom of the tank.
To monitor water continuously, a separate water sensing probe must be installed.

The differential pressure probe must be checked and calibrated in accordance with
manufacturer's instructions.

To detect losses or gains in the tank, the system uses a differential pressure
probe to  measure changes in pressure at the bottom of the tank.
Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
lower head pressure).  Consistent testing  at low  levels  could allow a leak to  remain
undetected.
EPA leak detection regulations require testing  of the portion of the tank system which
routinely contains product.
 Universal Sensors and Devices, Inc.
 9205 Alabama Ave., Unit C
 Chatsworth, CA  91311
 Tel:  (818)988-7121
                              Evaluator: Ken Wilcox Associates
                              Tel: (816) 443-2494

                              Date of Evaluation: 05/17/96
                                                 258
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                Universal Sensors and Devices, Inc.
                                                                              Revision Date: April 18, 1997
           Leak Alert System Models LAL-100, LA-01, LA-02, LA-04, LA-X4, LA-08, CATLAS
                                       Liquid Sensor LALS-1

                             LIQUID-PHASE INTERSTITIAL DETECTOR
Detector:
Output type:
Sampling frequency:
Operating principle:

Test Results: *
qualitative
continuous
thermal conductivity
Accuracy (%)
Response time (min)
Recovery time (min)
Product activation height (cm)
Lower detection limit (cm)
                       unleaded
                       gasoline
                       100
                       1.24
                       <1
                       0.61
                       0.76
* At a flow rate of 0.04 gal/hr in a 2.6 cm diameter test chamber.

Specificity Results:
Activated: diesel fuel, synthetic fuel, heating oil #2, water.

Comments:
EPA and many states require detection of 1/8 inch (0.32 cm) of product for groundwater monitoring.
Test procedures used were Carnegie Mellon Research Institute's "Test Procedures for Third Party Evaluation
of Leak Detection Methods: Point Sensor Liquid Contact Leak Detection Systems": Final Report -
November 11,1991.
Detector is reusable.
Universal Sensors and Devices, Inc.
9205 Alabama Ave., Unit C
Chatsworth, CA91311
Tel: (818) 988-7121
                      Evaluator: Carnegie Mellon Research Institute
                      Tel: (412) 268-3495

                      Date of Evaluation: 06/01/94
                                                259
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                 Universal Sensors and Devices, Inc.
                                                                             Revision Date: April 18,1997
            Leak Alert System Models LAL-100, LA-01, LA-02, LA-04, LA-X4, LA-08, CATLAS
                                     LAVS-1 MOS Vapor Sensor

                        VAPOR-PHASE OUT-OF-TANK PRODUCT DETECTOR
 Detector:
 Output type:
 Sampling frequency:
 Operating principle:

 Test Results:
qualitative
continuous
metal oxide semiconductor
unleaded
gasoline
100
00:31
4:43
100
synthetic
gasoline
100
00:40
4:25
N/D*
JP-4
jet fue
'100
00:42
,4:30
N/D
 Accuracy (%)
 Detection time (min:sec)
 Fall time (min:sec)
 Lower detection limit (ppm)

 * See glossary.

 Specificity Results:
 Activated: unleaded gasoline, synthetic gasoline, JP-4 jet fuel, n-hexane, toluene, xylene(s).

 Comments:
 Test procedures used were Radian Corporation's draft report "Development of Procedures to
 Assess the Performance of External Leak Detection Devices: Vapor-Phase ASTM-
 Formatted Methods," June 29,1990.
Universal Sensors and Devices, Inc.
9205 Alabama Ave., Unit C
Chatsworth,CA91311
Tel: (818) 988-7121
                     Evaluator: Carnegie Mellon Research Institute
                     Tel: (412) 268-3495

                     Date of Evaluation: 06/01/94
                                               260                                 i
Appearance on this list Is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                               USTest
                                                                               Revision Date: April 18,1997
Certification:

Leak Threshold:


Applicability:


Tank Capacity:


Waiting Time:



Test Period:




Temperature:


Water Sensor:




Calibration:

Comments:
                       UST 2001 (Quick Test)
                        (Ultrasonic Probe)
              AUTOMATIC TANK GAUGING SYSTEM

Leak rate of 0.2 gph with Pa=B7.5% and PFA=2.5%.

0.1 gph. A leak is declared if the output of the measurement system equals or exceeds
this threshold.

Gasoline, diesel, and aviation fuel.
Other liquids may be tested after consultation with the manufacturer.

Maximum of 15,000 gallons.
Tank must be between 50 and 95% full.

Minimum of 4 hours between delivery and testing.
Minimum of 15 minutes between dispensing and testing.
There must be no delivery during waiting time.

Minimum of 30 minutes, (see Comments section below)
Test data are acquired and recorded by a computer.
Leak rate is calculated from data determined to be valid by statistical analysis.
There must be no dispensing or delivery during test.

Average for product is determined from the measurement of the change in the
speed of sound.

Must be used to detect water ingress.
water is declared via an ultrasonic signal ranging to the water interface.
Minimum detectable water level in the tank is less than 0.1 inch.
Minimum detectable change in water level is 0.046 inch.

Probe must be checked regularly in accordance with manufacturer's instructions.

With a test period of 1 hour, method has a PD = 99.9% and a PFA = 0.1 %.
Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank  decreases (due to
lower head pressure).   Consistent  testing  at low  levels could  allow a  leak  to  remain
undetected.   ,                                     .        •
EPA leak detection regulations require testing of the portion of the tank system which routinely
contains product.
USTest
2727 Kaliste Saloom Rd.
Lafayette, LA  70508
Tel: (318)981-9421
                                Evaluator: Ken Wilcox Associates
                                Tel: (816) 443-2494

                                Date of Evaluation: 06/06/95
                                                 261
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                               USTest
                                                                               Revision Date: April 18,1997
 Certification:

 Leak Threshold:


 Applicability:


 Tank Capacity:


 Waiting Time:



 Test Period:




 Temperature:


 Water Sensor:




 Calibration:

 Comments:
                             UST2001
                         (Ultrasonic Probe)
               AUTOMATIC TANK GAUGING SYSTEM

Leak rate of 0.1 gph with PD=95.2% and PFA=4.8%.

0.05 gph. A leak is declared if the output of the measurement system equals or exceeds
this threshold.                                                        t

Gasoline, diesel, and aviation fuel.
Other liquids may be tested after consultation with the manufacturer.

Maximum of 15,000 gallons.
Tank must be between 50 and 95% full.

Minimum of 4 hours between delivery and testing.
Minimum of 15 minutes between dispensing and testing.
There must be no delivery during waiting time.

Minimum of 1 hour, (see Comments section below)
Test data are acquired and recorded by a computer.
Leak rate is calculated from data determined to be valid by statistical analysis.
There must be no dispensing or delivery during test.

Average for product is determined from the measurement of the change in the
speed of sound.                                                       L

Must be used to detect water ingress.
water is declared via an ultrasonic signal ranging to the water interface.       \
Minimum detectable water level in the tank is less than 0.1 inch.
Minimum detectable change in water level is 0.046 inch.

Probe must be checked regularly in accordance with manufacturer's instructions.

With a test period of 2 hours, method has a PD = 98.6% and a PFA = 1.4%.   '
Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
lower head  pressure).  Consistent testing at low levels  could allow a leak to remain
undetected.
EPA leak detection regulations require testing of the portion of the tank system which routinely
contains product.                                                      !
USTest
2727 Kaliste Saloom Rd.
Lafayette, LA 70508
Tel:  (318)981-9421
                               Evaluaton Ken Wilcox Associates
                               Tel: (816) 443-2494

                               Date of Evaluation: 06/06/95
                                                 262
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                              USTest
                                                                              Revision Date: April 18,1997
Certification:

Leak Threshold:



Applicability:


Tank Capacity:


Waiting Time:

Test Period:

Test Pressure:

Groundwater:



Calibration:

Comments:
                         UST 2000/U
                 (Pressure and Vacuum Test)

NON-VOLUMETRIC TANK TIGHTNESS TEST METHOD (ULLAGE)

    Leak rate of 0.1 gph with PD=100% and PFA=0%.

    A leak is declared when there is a substantial increase in the acoustic noise signal
    (when the tank is under pressure or vacuum) above the background signal (prior
    to pressurization or evacuation) in the frequency interval of 10 kHz to 20 kHz.

    Gasoline, diesel, aviation fuel, fuel oils #2 through #6, waste oil, and solvents.
    Equipment is not in contact with the product.

    Maximum ullage volume is 7,550 gallons for pressure test and 5,250 gallons for
    vacuum test.

    None if test is conducted after an underfilled tank tightness test.

    Minimum of 15 minutes (includes collection of background information).

    Net pressure of 2.0 psi or vacuum of 1.0 psi must be maintained in ullage.

    Depth to groundwater in backfill must be determined. If groundwater is
    above product level, vacuum test must not be used. Pressure test must be
    conducted using net pressure exceeding 2.0 psi in the ullage.

    Test equipment must be checked by tester before each test.

    Not evaluated using manifold tank systems.
    Evaluated using unleaded gasoline as test product.
    Tests only ullage portion of tank.
    Product-filled portion of the tank must be tested using an underfilled test method.
    Microphone was less than 8 feet, 6 inches from the leak source during evaluation.
    If the background noise is too high, test is  inconclusive.
    Vibration due to nearby equipment or dripping condensation may interfere with
    test.
    Vacuum test method may not be effective in some backfill (such as clay) because it
    may plug holes in tank.
    If soil is saturated with product, air or water ingress may not be declared by
    vacuum test. A well point in backfill may help identify presence of this condition.
USTest
2727 Kaliste Saloom Rd.
Lafayette, LA 70508
Tel:  (318)981-9421
                             Evaluator: Ken Wilcox Associates
                             Tel: (816) 443-2494

                             Date of Evaluation: 03/24/92
                                                263
Appearance on this list is not to be constated as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                              USTest
                                                                              Revision Date: April 18,1997
 Certification:

 Leak Threshold:


 Applicability:


 Tank Capacity:



 Waiting Time:




 Test Period:
Temperature:


Groundwater:
Calibration:
Comments:
                        UST2000/LL

VOLUMETRIC TANK TIGHTNESS TEST METHOD (UNDERFILL)

    Leak rate of 0.1 gph with PD=98.12% and PFA=1 -88%.

    0.05 gph. A leak is declared if the output of the measurement system
    equals or exceeds this threshold.

    Gasoline, diesel, aviation fuel, water, and kerosene.
    Other liquids may be tested after consultation with the manufacturer.

    Maximum of 15,000 gallons.
    Tank must be minimum  15% full.There must be at least 20 inches and
    not more than 67 inches of product in the tank.

    Ranges from 3 to 12 hours between delivery and testing.          '
    Testing may begin when the rate of product temperature change does not
    exceed 0.1 degree F per hour.                                 \  '
    There must be no dispensing or delivery during waiting time.

    Minimum of 2 hours.
    Test data are acquired and recorded by a computer, which does a
    regression analysis to determine the leak rate.
    An ultrasonic device is used to measure changes in product level.  ,
    There must be no dispensing or delivery during test.

    Average for product is determined from the measurement of the change in the
    speed of sound.

    Depth to groundwater in backfill must be determined. If groundwater is above
    bottom of tank, product level must be adjusted to provide a minimum net pressure
    of 1  psi at bottom of tank during  test.  (There must be a difference of at least 37
    inches between groundwater level and product level to provide a net pressure of 1
    psi at bottom of tank during test.)                               i

    Temperature sensors and probes must be checked annually and calibrated if
    necessary in accordance with manufacturer's instructions.

    Not evaluated using manifold tank systems.
    Tests only portion of tank containing product.
    As product level is lowered, leak rate in a leaking tank decreases (due to
    lower head pressure). Consistent testing at low levels could allow a leak to remain
    undetected.                                                  \
    EPA leak detection regulations require testing of the portion of the tahk system which
    routinely contains product.
USTest
2727 Kaliste Saloom Rd.
Lafayette, LA 70508
Tel:  (318)981-9421
                               Evaluator: Ken Wilcox Associates
                               Tel: (816) 443-2494

                               Date of Evaluation: 06/09/94
                                                264                                 ;
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                              USTest
                                                                              Revision Date: April 18, 1997
Certification:



Leak Threshold:


Applicability:


Tank Capacity:


Waiting Time:




Test Period:
Temperature:


Groundwater:



Comments:
                         UST2000/P

VOLUMETRIC TANK TIGHTNESS TEST METHOD (UNDERFILL)

 Leak rate of 0.1 gph with PD=99.9% and PFA=0.1% for tanks up to 15,000 gallons,
 Leak rate of 0.1 gph with PD=99.7% and PFA=0.3% for tanks from 15,000 gallons
 up to 45,000 gallons.

 0.05 gph. A leak is declared if the output of the measurement system equals or
 exceeds this threshold.

 Gasoline, diesel,  aviation fuel, waste oil, water, and kerosene.
 Other liquids may be tested after consultation with the manufacturer.

 Maximum of 45,000 gallons.
 Tank must be minimum 78.6% full.

 Minimum for tanks up to 45,000 gallons must be determined from the
 manufacturer's chart of "Wait Time versus Tank Volume." This chart must
 be included in the tank test report.
 There must be no dispensing or delivery during waiting time.

 Minimum for tanks between 10,000 and 45,000 gallons is determined from
 the manufacturer's chart of Differential Volume versus Test Duration.
 Line labeled PD = 99.9% must be used.  This chart must be included in the tank test
 report.
 Test data are acquired and recorded by a computer, which does  a regression
 analysis to determine the leak rate.
 There must be no dispensing or delivery during test.

 Average for product is determined from the measurement of the change in the
 speed of sound.

 Depth to groundwater in backfill must be determined. If groundwater is above
 bottom of tank, product level must be adjusted to provide a minimum net pressure of
 1 psi at bottom of the tank during test.

 Not evaluated using manifold tank systems.
 Tests only portion of tank containing product.
 As product level is lowered, leak rate in a leaking tank decreases (due to
 lower head  pressure).   Consistent testing  at low  levels could allow a  leak to remain
 undetected.
 EPA leak detection regulations require testing of the portion of  the tank system which
 routinely contains  product.
USTest
2727 Kaliste Saloom Rd.
Lafayette, LA 70508
Tel:  (318)981-9421
                               Evaluators: Midwest Research Institute
                               Tel: (816) 753-7600
                               and Ken Wilcox Associates
                               Tel: (816) 443-2494
                               Dates of Evaluation: 12/05/90 (1000-10000 gallons),
                               and 08/04/92 (10000-45000 gallons)
                                                265
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                            Revision Date: April 18,1997
                                     USTMAN Industries, Inc.

                                        USTMAN SIR 1.91

           STATISTICAL INVENTORY RECONCILIATION TEST METHOD (QUANTITATIVE)
Certification:

Leak Threshold:


Applicability:

Tank Capacity:

Data Requirement:

Comments:
 Leak rate of 0.1 gph with PD=98.4% and PFA=1 -6%.

 0.1 gph. A leak is declared when a continuous loss equals or exceeds this threshold
 at the 5% level of significance.

Gasoline, diesel, aviation fuel, and fuel oil #4.

Maximum of 18,000 gallons.

Minimum of 42 days of product level and flow through data.

Not evaluated using data from manifold tank systems.               |
Of 41 data sets submitted for evaluation, 4 data sets were not analyzed and
7 were inconclusive.                                            '
Median monthly throughput of tanks evaluated was 10,978 gallons.
Leak rates ranging from 0.048 to 0.201 gph were used in evaluation,  i
Data sets evaluated were supplied by evaluator.
 USTMAN Industries Inc.
 12265 W. Bayaud Ave., Suite 110
 Lakewood, CO 80228
 Tel: (303) 986-8011
                         Evaluator: Ken Wilcox Associates
                         Tel: (816) 443-2494

                         Date of Evaluation: 10/31/91
                                                266
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                              Revision Date: April 18,1997
                                       USTMAN Industries, Inc.

                                      USTMAN SIR Version 94.1

             STATISTICAL INVENTORY RECONCILIATION TEST METHOD (QUANTITATIVE)

  Certification:       Leak rate of 0.1 gph with PD=>99% and PFA=<1.0%.

  Leak Threshold:    0.05 gph. A leak is declared when leak rate equals or exceeds this threshold.

  Applicability:       Gasoline, diesel, aviation fuel, and fuel oil #4.

  Tank Capacity:      Maximum of 30,000 gallons.

  Data Requirement:  Minimum of 30 days of product level and flow through data.
 Comments:
Evaluated using some data from manifold tank systems.
Of 53 data sets submitted for evaluation, all were analyzed with conclusive results.
Median monthly throughput of tanks evaluated was 25,408 gallons.
Leak rates of 0.05, 0.1, and 0.2 gph were used in evaluation.
Data sets evaluated were supplied by evaluator. Some data sets
used USTMAN SIR 1.91 (0.1 gph) analysis as documentation that tanks were tight.
USTMAN Industries Inc.
12265 W. Bayaud Ave., Suite 110
Lakewood, CO 80228
Tel: (303) 986-8011
                          Evaluator: Ken Wilcox Associates
                          Tel: (816) 443-2494

                          Date of Evaluation: 03/31/94
                                               267
t^mt^f™" **? "St fet"? * be T5^ aS ?" endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                             RevisionjDate: April 18,1997
                                     USTMAN Industries, Inc.

                                           YES SIR 90

            STATISTICAL INVENTORY RECONCILIATION TEST METHOD (QUALITATIVE)

Certification:        Leak rate of 0.2 gph with PD=96.3% and PFA=3.9%.

                    0.1 gph. A leak is declared when a consistent loss equals or exceeds this threshold

                    is statistically significant from zero at the 5% confidence level.

                    Gasoline, diesel, aviation fuel, and fuel oil #4.

                    Maximum of 15,000 gallons.
Leak Threshold:
that
Applicability:

Tank Capacity:
Data Requirement:  Minimum of 35 days of product level and flow through data.
Comments:
                    Not evaluated using manifold tank systems.
                    Of 120 data sets submitted for evaluation, 15 were inconclusive.
                    Median monthly throughput of tanks evaluated was 15,867 gallons.
                    Data sets evaluated were supplied by evaluator.
 USTMAN Industries Inc.
 12265 W. Bayaud Ave., Suite 110
 Lakewood.CO 80228
 Tel: (303) 986-8011
                                                Evaluator: Midwest Research Institute
                                                Tel: (816) 753-7600

                                                Date of Evaluation: 12/17/90
                                                268
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:


Applicability:

Specification:


Pipeline Capacity:

Waiting Time:


Test Period:

System Features:
Calibration:
                                                       Revision Date: April 18, 1997
               Vaporless Manufacturing

           Vaporless LD 2000 and LD 2000S

  AUTOMATIC MECHANICAL LINE LEAK DETECTOR

Leak rate of 3.0 gph with PD=i1 00% and PFA=0%.

1.7 gph. A leak is declared if the output of the measurement system equals or
exceeds this threshold.

Gasoline, diesel, aviation fuel and solvents.

System tests pressurized fiberglass or steel pipelines.
Tests are conducted at operating pressure.

Maximum of 129 gallons.

None between dispensing and testing.
None between delivery and testing.

Response time is 5 seconds.

Permanent installation on pipeline.
Automatic testing of pipeline.
Preset threshold.
Single test to determine if pipeline is leaking.
LD2000 - restricted flow to dispenser if leak is declared.
LD2000S - pump shutoff if leak is declared.

System must be checked annually and calibrated if necessary in accordance with
manufacturer's instructions.
Vaporless Manufacturing
9234 E. Valley Rd., Suite C
Prescott Valley, AZ 86314
Tel: (602) 775-5191
                      Evaluator: Ken Wilcox Associates
                      Tel: (816) 443-2494

                      Date of Evaluation: 11/19/90
                                                269
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:


Applicability:

Specification:


Pipeline Capacity:

Waiting Time:


Test Period:

System Features:
Calibration:


Comments:
                                                         Revision; Date: April 18,1997
                 Vaporless Manufacturing

            Vaporless LD 2000E and LD 2000E-S

    AUTOMATIC MECHANICAL LINE LEAK DETECTOR

Leak rate of 3.0 gph with PD=100% and PFA=0%.

2.0 gph. A leak is declared if the output of the measurement system equals or exceeds
this threshold.

Gasoline, diesel, aviation fuel and solvents.

System tests flexible pipelines.
Tests are conducted at operating pressure.

Maximum of 59.6 gallons.

None between dispensing and testing.
None between delivery and testing.

Response time is 30 seconds.

Permanent installation on pipeline.
Automatic testing of pipeline.                                      ;
Preset threshold.
Single test to determine if pipeline is leaking.
LD2000E - restricted flow to dispenser if leak is declared.
LD2000ES - pump shutoff if leak is declared.

System must be checked annually and calibrated if necessary in accordance with
manufacturer's instructions.

Enviroflex piping with a balk modulus* of 1,352 psi was used during evaluation.

*See glossary.
 Vaporless Manufacturing
 9234 E. Valley Rd., Suite C
 Prescott Valley, AZ 86314
 Tel: (602) 775-5191
                            Evaluator: Ken Wilcox Associates
                            Tel: (816) 443-2494

                            Date of Evaluation: 12/11/92
                                                 270
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
 Certification:

 Leak Threshold:


 Applicability:

 Specification:


 Pipeline Capacity:

 Waiting Time:


 Test Period:

 System Features:
Calibration:
                                                          Revision Date: April 18, 1997
                  Vaporless Manufacturing

            Vaporless LD 2000T and LD 2000T-S

     AUTOMATIC MECHANICAL LINE LEAK DETECTOR

Leak rate of 3.0 gph with PD=100% and PFA=0%.

2.5 gph. A leak is declared if the output of the measurement system equals or exceeds
this threshold.

Gasoline, diesel, aviation fuel and solvents.

System tests pressurized fiberglass and steel pipelines.
Tests are conducted at operating pressure.

Maximum of 129 gallons.

None between dispensing and testing.
None between delivery and testing.

Response time is 1 minute.

Permanent installation on pipeline.
Automatic testing of pipeline.
Preset threshold.
Single test to determine if pipeline is leaking.
LD2000T - restricted flow to dispenser if leak is declared.
LD2000T-S - pump shutoff if leak is declared.

System  must be checked annually and calibrated if necessary in accordance with
manufacturer's instructions.
Vaporless Manufacturing
9234 E. Valley Rd., Suite C
Prescott Valley, AZ 86314
Tel: (602) 775-5191
                           Evaluator: Ken Wilcox Associates
                           Tel: (816) 443-2494

                           Date of Evaluation: 07/13/93
                                                271
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                              Revision Date: April 18,1997
                                     Vaporless Manufacturing

                                 Vaporless LD 3000 and LD 3000S

                         AUTOMATIC MECHANICAL LINE LEAK DETECTOR

Certification:       Leak rate of 3.0 gph with Po=100% and PFA=0%.

Leak Threshold:   2.0 gph. A leak is declared if the output of the measurement system equals or exceeds
                   this threshold.                                                     '.

Applicability:       Gasoline, diesel, aviation fuel and solvents.

Specification:      System tests pressurized steel and fiberglass pipelines.
                   Tests are conducted at operating pressure.

Pipeline Capacity:  Maximum of 320 gallons.

Waiting Time:      None between dispensing and testing.

Test Period:       Response time is 9 seconds.

System Features:  Permanent installation on pipeline.
                   Automatic testing of pipeline.
                   LD3000 - restricted flow to dispenser if leak is declared.
                   LD3000S - pump shutoff if leak is declared.

Calibration:       System must be checked annually and calibrated if necessary in accordance with
                   manufacturer's instructions.
 Vaporless Manufacturing                       Evaluator: Ken Wilcox Associates
 9234 E. Valley Rd., Suite C                     Tel: (816) 443-2494
 Prescott Valley, AZ 86314
 Tel: (602) 775-5191                           Date of Evaluation: 08/20/93
                                                 272
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
 Certification:

 Leak Threshold:


 Applicability:

 Specification:




 Pipeline Capacity:

 Waiting Time:



 Test Period:



 System Features:
 Calibration:
                                                        Revision Date: April 18,1997
                     Veeder-Root

        TLS-350 Line Leak Detector, Series 8475

   AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

 Leak rate of 3.0 gph with PD=100% and PFA=0%.

 1.5 gph. A leak is declared if the output of the measurement system
 equals or exceeds this threshold.

 Gasoline, diesel, aviation fuel, and solvents.

 System tests pressurized fiberglass and steel pipelines.
 Tests are conducted at operating pressure.
 System will not function with a mechanical line leak detector installed
 in the pipeline.

 Maximum of 128 gallons.

 None between delivery and testing.
 Minimum between dispensing and testing depends on volume of
 product and temperature gradient which is determined by the system's computer.

 Response time is 14 seconds.
Test data are acquired and recorded by a microprocessor.
Calculations are automatically performed by the microprocessor.

Permanent installation on pipeline.
Automatic testing of pipeline.
Preset threshold.
Single test to determine if pipeline is leaking.
Dispenser shutdown, message display and alarm activation if leak is declared.

System must be checked annually and calibrated if necessary in accordance with
manufacturer's instructions.
Veeder-Root
125 Powder Forest Dr.
Simsbury, CT 06070-2003
Tel: (203) 651-2700
                        Evaluaton Midwest Research Institute
                        Tel: (816) 753-7600
                        Rev. by Ken Wilcox Associates
                        Tel: (816) 443-2494
                        Date of Evaluation: 09/20/91, Rev. 04/12/93
                                                273
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:


Applicability:

Specification:




Pipeline Capacity:

Waiting Time:



Test Period:



System Features:
Calibration:
                                                          Revision Date: April 18,1997
                       Veeder-Root

          TLS-350 Line Leak Detector, Series 8475

     AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

Leak rate of 0.2 gph with PD=100.0% and PFA=0%.

0.1 gph.  A leak is declared if the output of the measurement system equals or exceeds
this threshold.                                                   '

Gasoline, diesel, aviation fuel, and solvents.

System tests pressurized fiberglass and steel pipelines.
Tests are conducted at operating pressure.
System will not function with a mechanical line leak detector installed  \
in the pipeline.

Maximum of 128 gallons.

None between delivery and testing.
Minimum between dispensing and testing depends on volume of
product and temperature gradient which is determined by the system's computer.
                                                                I
Response time is 6 minutes.
Test data are acquired and recorded by a microprocessor.
Calculations are automatically performed by the microprocessor.

Permanent installation on pipeline.
Automatic testing of pipeline.
Preset threshold.
Single test to determine if pipeline is leaking.
Dispenser shutdown, message display and alarm activation if leak is declared.

System must be checked annually and calibrated  if necessary in accordance with
manufacturer's instructions.
Veeder-Root
125 Powder Forest Dr.
Simsbury, CT 06070-2003
Tel: (203) 651-2700
                         Evaluator: Midwest Research Institute
                         Tel: (816) 753-7600
                         Rev. by Ken Wilcox Associates, Inc.
                         Tel: (816) 443-2494
                         Dates of Evaluation: 09/20/91, Rev. 04/12/93
                                                 274
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
 Certification:

 Leak Threshold:


 Applicability:

 Specification:




 Pipeline Capacity:

 Waiting Time:



 Test Period:



 System Features:
Calibration:
                                                       Revision Date: Aprii 18,1997
                     Veeder-Root

       TLS-350 Line Leak Detector, Series 8475

   AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

Leak rate of 0.1 gph with PD=100% and PFA=0%.

0.079 gph. A leak is declared if the output of the measurement system
equals or exceeds this threshold.

Gasoline, diesel, aviation fuel, and solvents.

System tests pressurized fiberglass and steel pipelines.
Tests are conducted at operating pressure.
System will not function with a mechanical line leak detector installed
in the pipeline.

Maximum of 128 gallons.

None between delivery and testing.
Minimum between dispensing and testing depends on volume of
product and temperature gradient which is determined by the system's computer.

Response time is 14 minutes.
Test data are acquired and recorded by a microprocessor.
Calculations are automatically performed by the microprocessor.

Permanent installation on pipeline.
Automatic testing of pipeline.
Preset threshold.
Single test to determine if pipeline is leaking.
Dispenser shutdown, message display and alarm activation if leak
is declared.

System must be checked annually and calibrated if necessary in accordance with
manufacturer's instructions.
Veeder-Root
125 Powder Forest Dr.
Simsbury, CT 06070-2003
Tel: (203) 651-2700
                        Evaluator: Midwest Research Institute
                        Tel: (816) 753-7600
                        Rev. by Ken Wilcox Associates, Inc.
                        Tel: (816) 443-2494
                        Date of Evaluation: 09/20/91, Rev. 04/12/93
                                                275
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:


Applicability:

Specification:




Pipeline Capacity:

Waiting Time:



Test Period:



System Features:
Calibration:
                                                           Revision Date: April 18,1997
                        Veeder-Root

TLS-350 Line Leak Detector for Flexible Pipelines, Series 8475

      AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

    Leak rate of 3.0 gph with PD=100% and PFA=0%-

    1.5 gph. A leak is declared if the output of the measurement system
    equals or exceeds this threshold.

    Gasoline, diesel, aviation fuel, and solvents.

    System tests pressurized flexible pipelines.
    Tests are conducted at operating pressure.
    System will not function with a mechanical line leak detector installed
    in the pipeline.

    Maximum of 158.4 gallons.                                     •

    None between delivery and testing.
    Minimum between dispensing and testing depends on volume of
    product and temperature gradient which is determined by the system's computer.
                                                                 j,
    Response time is 1 minute.
    Test data are acquired and recorded by a microprocessor.
    Calculations are automatically performed by the microprocessor.

    Permanent installation on pipeline.
    Automatic testing of pipeline.
    Preset threshold.
    Single test to  determine if pipeline is leaking.
    Message display and alarm activation if leak is declared.
                                                                 j
    System must be checked annually and  calibrated if necessary in accbrdance with
    manufacturer's instructions.
 Veeder-Root
 125 Powder Forest Dr.
 Simsbury, CT 06070-2003
 Tel: (203) 651-2700
                             Evaluator: Ken Wilcox Associates
                             Tel: (816) 443-2494

                             Date of Evaluation: 08/04/93
                                                 276
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
  Certification:

  Leak Threshold:


  Applicability:

  Specification:




  Pipeline Capacity:

 Waiting Time:



 Test Period:



 System Features:
 Calibration:
                                                           Revision Date: April 18, 1997
                        Veeder-Root

TLS-350 Line Leak Detector for Flexible Pipelines, Series 8475

     AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

   Leak rate of 0.2 gph with PD=96% and PFA=4%.

   0.1 gph. A leak is declared if the output of the measurement system
   equals or exceeds this threshold.

   Gasoline, diesel, aviation fuel, and solvents.

   System tests pressurized flexible pipelines.
   Tests are conducted at operating pressure.
   System will not function with a mechanical line leak detector installed
   in the pipeline.

   Maximum of 158.4 gallons.                                           .

   None between delivery and testing.
   Minimum between dispensing and testing depends on volume of
   product and temperature gradient which is determined by the system's computer.

   Response time ranges from 45 minutes to 8 hours, 51 minutes.
   Test data are acquired and recorded by a microprocessor.
   Calculations are automatically performed by the microprocessor.

   Permanent installation on pipeline.
   Automatic testing of pipeline.
   Preset threshold.
   Single test to determine if pipeline is leaking.
   Dispenser shutdown, message display and alarm activation if leak
   is declared.

   System must be checked annually and calibrated if necessary in accordance with
   manufacturer's instructions.
Veeder-Root
125 Powder Forest Dr.
Simsbury, CT 06070-2003
Tel: (203) 651-2700
                          Evaluator: Ken Wilcox Associates
                          Tel: (816) 443-2494

                          Date of Evaluation: 08/04/93
                                                277
t^mt^™!? "S11 "n * b6 C°/1S,!rU^ uS a" endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:


Applicability:

Specification:




Pipeline Capacity:

Waiting Time:



Test Period:



System Features:
Calibration:
                                                          Revision Date: April 18,1997
                        Veeder-Root

TLS-350 Line Leak Detector for Flexible Pipelines, Series 8475

     AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

   Leak rate of 0.1 gph with PD=100% and PFA=0%.

   0.079 gph. A leak is declared if the output of the measurement system
   equals or exceeds this threshold.

   Gasoline, diesel, aviation fuel, and solvents.

   System tests pressurized flexible pipelines.
   Tests are conducted at operating pressure.
   System will not function with a mechanical line leak detector installed
   in the pipeline.

   Maximum of 158.4 gallons.                                    ;

   None between delivery and testing.
   Minimum between dispensing and testing depends on volume of
   product and temperature gradient which is determined by the system's computer.

   Response time ranges from 1 hour,  12 minutes to 12 hours, 54 miniirtes.
   Test data are acquired and recorded by a microprocessor.
   Calculations are automatically performed by the microprocessor.

   Permanent installation on pipeline.
   Automatic testing of pipeline.
   Preset threshold.
   Single test .to determine if pipeline is leaking.
   Dispenser shutdown, message display and alarm activation if
   leak is declared.

   System must be checked annually and calibrated if necessary in accordance with
   manufacturer's instructions.
 Veeder-Root
 125 Powder Forest Dr.
 Simsbury, CT 06070-2003
 Teh (203) 651-2700
                             Evaluator: Ken Wilcox Associates
                             Tel: (816) 443-2494

                             Date of Evaluation: 08/04/93
                                                 278                                '
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
 Certification:

 Leak Threshold:


 Applicability:

 Specification:




 Pipeline Capacity:

 Waiting Time:


 Test Period:



 System Features:
 Calibration:
                                                           Revision Date: April 18,1997
                        Veeder-Roof

             TLS Line Leak Detector, Series 8484

      AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

 Leak rate of 3.0 gph with PD=100.0% and PFA=0%.

 1.88 gph.  A leak is declared if the output of the measurement system equals or
 exceeds this threshold.

 Gasoline, diesel, aviation fuel, and solvents.

 System tests pressurized fiberglass and steel pipelines.
 Tests are conducted at operating pressure.
 System will not function with a mechanical line leak detector installed
 in the pipeline.

 Maximum of 89 gallons.

 None between delivery and testing.
 Minimum of 16 minutes between dispensing and testing.

 Response time is 28.8 seconds.
Test data are acquired and recorded by a microprocessor.
 Calculations are automatically performed by the microprocessor.

 Permanent installation on pipeline.
 Automatic testing of pipeline.
 Preset threshold.
 Single test to determine if pipeline is leaking.
 Dispenser shutdown, message display and alarm activation if leak is declared.

 System must be checked annually and calibrated if necessary in accordance with
 manufacturer's instructions.
Veeder-Root
125 Powder Forest Dr.
Simsbury, CT 06070-2003
Tel: (203) 651-2700
                         Evaluator: Midwest Research Institute
                         Tel: (816) 753-7600

                         Date of Evaluation: 08/07/91
                                                279
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:


Applicability:

Specification:




Pipeline Capacity:

Waiting Time:


Test Period:



System Features:
Calibration:
                                                          Revision Date: April 18,1997
                       Veeder-Root

            TLS Line Leak Detector, Series 8484

     AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

Leak rate of 0.1 gph with PD=100.0% and PFA=0%.

0.05 gph. A leak is declared if the output of the measurement system equals or
exceeds this threshold.

Gasoline, diesel, aviation fuel, and solvents.

System tests pressurized fiberglass and steel pipelines.
Tests are conducted at operating pressure.
System will not function with a mechanical line leak detector installed
in the pipeline.

Maximum of 89 gallons.

None between delivery and testing.
Minimum of 2 hours, 30 minutes between dispensing and testing.

Response time is 18 minutes.
Test data are acquired and recorded by a microprocessor.
Calculations are automatically performed by the microprocessor.

Permanent installation on pipeline.
Automatic testing of pipeline.
Preset threshold.                                                 ]
Single test to determine if pipeline is leaking.                         !
Dispenser shutdown, message display and alarm activation if leak is declared.

System must be checked  annually and calibrated if necessary in accordance with
manufacturer's instructions.
Veeder-Root
125 Powder Forest Dr.
Simsbury, CT 06070-2003
Tel: (203) 651-2700
                         Evaluator: Midwest Research Institute
                         Tel: (816) 753-7600

                         Date of Evaluation: 08/07/91
                                                280
Appearance on tills list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:


Applicability:

Specification:




Pipeline Capacity:

Waiting Time:


Test Period:



System Features:
Calibration:
                                                        Revision Date: ApriM 8,1997
                     Veeder-Root

      Pressurized Line Leak Detector, Series 8494

  AUTOMATIC ELECTRONIC LiNE LEAK DETECTOR

Leak rate of 3.0 gph with PD=100% and PFA=O%.

2.5 gph. A leak is declared if the output of the measurement system
equals or exceeds this threshold.

Gasoline, diesel, aviation fuel, and solvents.

System tests pressurized fiberglass and steel pipelines.
Tests are conducted at operating pressure, not to exceed 50 psi.
System will not function with a mechanical line leak detector installed
in the pipeline.

Maximum of 100 gallons.

None between delivery and testing.
None between dispensing and testing.

Response time is 2 seconds.
Test data are acquired and recorded by a microprocessor.
Calculations are automatically performed by the microprocessor.

Permanent installation on pipeline.
Automatic testing of pipeline.
Preset threshold.
Single test to determine if pipeline is leaking.
Message display and alarm activation if leak is declared.

System must be checked annually and calibrated if necessary in accordance with
manufacturer's  instructions.
Veeder-Root
125 Powder Forest Dr.
Simsbury, CT  06070-2003
Tel: (203) 651-2700
                         Evaluator: Midwest Research Institute
                         Tel: (816) 753-7600

                         Date of Evaluation: 05/08/96
                                                 281
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
Certification:

Leak Threshold:


Applicability:

Specification:




Pipeline Capacity:

Waiting Time:


Test Period:



System Features:
Calibration:
                                                       Revision pate: April 18,1997
                    Veeder-Root

     Pressurized Line Leak Detector, Series 8494

  AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

Leak rate of 0.2 gph with PD=100% and PFA=0%.

0.17 gph.  A leak is declared if the output of the measurement system
equals or exceeds this threshold.

Gasoline, diesel, aviation fuel, and solvents.

System tests pressurized fiberglass and steel pipelines.
Tests are conducted at operating pressure, not to exceed 50 psi.
System will not function with a mechanical line leak detector installed
in the pipeline.

Maximum of 100 gallons.

None between delivery and testing.
Minimum between dispensing and testing is 15 minutes.

Response time is 45 minutes.                                   j
Test data are acquired  and recorded by a microprocessor.          ;
Calculations are automatically performed by the microprocessor.

Permanent installation on pipeline.
Automatic testing of pipeline.
Preset threshold.
Single test to determine if pipeline is leaking.
Message display.alarm activation, and dispensing shut-down if leak ip declared.

Equipment must be checked annually and calibrated if necessary in accordance with
manufacturer's instructions.
 Veeder-Root
 125 Powder Forest Dr.
 Simsbury, CT 06070-2003
 Tel: (203) 651-2700
                         Evaluaton Midwest Research Institute
                         Tel: (816) 753-7600

                         Date of Evaluation: 05/08/96
                                                 282                                 l
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
 Certification:

 Leak Threshold:


 Applicability:

 Specification:




 Pipeline Capacity:

 Waiting Time:


 Test Period:



 System Features:




 Calibration:
                                                         Revision Date: April 18, 139T
                      Veeder-Root

       Pressurized Line Leak Detector, Series 8494

   AUTOMATIC ELECTRONIC LINE LEAK DETECTOR

 Leak rate of 0.1 gph with PD=100% and PFA=0%.

 0.09 gph. A leak is declared if the output of the measurement system
 equals or exceeds this threshold.

 Gasoline, diesel, aviation fuel, and solvents.

 System tests pressurized fiberglass and steel pipelines.
 Tests are conducted at operating pressure, not to exceed 50 psi.
 System will not function with a mechanical line leak detector installed
 in the pipeline.

 Maximum of 100 gallons.

 None between delivery and testing.
 Minimum between dispensing and testing is 2 hours.

 Response time is 32-48 minutes.
 Test data are acquired and recorded by a microprocessor.
 Calculations are automatically performed by the microprocessor.

 Permanent installation on pipeline.
 Preset threshold.
 Single test to determine if pipeline is leaking.
 Message display and alarm activation if leak is detected.

 Equipment must be checked annually and calibrated if necessary in accordance with
 manufacturer's instructions.
 Comments:
Testing of pipeline at this leak rate is normally initiated manually, but may be set to
.activate automatically.
Veeder-Root
125 Powder Forest Dr.
Simsbury, CT 06070-2003
Tel: (203) 651-2700
                         Evaluator: Midwest Research Institute
                         Tel: (816) 753-7600

                         Date of Evaluation: 05/08/96
                                                283
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and reaulation<5

-------
Certification:

Leak Threshold:


Applicability:

Tank Capacity:


Waiting Time:


Test Period:




Temperature:

Water Sensor:



Calibration:


Comments:
                                                           Revision Date: April 18,1997
                         Veeder-Root

                TLS-200/200J/300/400 UST ATGS
           (7842 Digital Sensing Capacitance Probe)

             AUTOMATIC TANK GAUGING SYSTEM

Leak rate of 0.2 gph with PD=99% and PFA=1%-

0.1 gph. A leak is declared if the output of the measurement system equals or exceeds
this threshold.

Gasoline, diesel, aviation fuel, and solvents.
                                   '                               i
Maximum of 15,000 gallons.
Tank must be between 50 and 95% full.

Minimum of 8 hours, 18 minutes between delivery and testing.
There must be no dispensing or delivery during waiting time.

Minimum of 5 hours.
Test data are acquired and recorded by the system's computer.
Leak rate is calculated from the difference between the first and last data collected.
There must be no dispensing or delivery during test.

Average for product is determined by a temperature averaging probe.

Must be used to detect water ingress.
Minimum detectable water level in the tank is 1.40 inches.
Minimum detectable change in water level is 0.040 inch.
                                                                  i
Temperature averaging probe must be checked and calibrated  in accordance with
manufacturer's instructions.

Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
lower head pressure).  Consistent testing at low levels could allow  a leak to remain
undetected.
EPA leak detection regulations  require testing of the portion  of the tatjik system which
routinely contains product.
Capacitance probes do not work with oxygenated fuels.
Veeder-Root
125 Powder Forest Dr.
SImsbury, CT 06070-2003
Tel:  (2Q3)651-2700
                             Evaluator: Midwest Research Institute
                             Tel: (816) 753-7600

                             Date of Evaluation: 05/14/93
                                                284
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                           Veeder-Root
                                                                             Revision Date: April 18,1997
Certification:

Leak Threshold:


Applicability:

Tank Capacity:


Waiting Time:


Test Period:




Temperature:

Water Sensor:



Calibration:


Comments:
                TLS-200/200i/300/400 UST ATGS
            (8472 Digital Sensing Capacitance Probe)

             AUTOMATIC TANK GAUGING SYSTEM

Leak rate of 0.2 gph with PD=99% and PFA=0.2%.

0.126 gph.  A leak is declared if the output of the measurement system equals or exceeds
this threshold.

Gasoline, diesel, aviation fuel, and solvents.

Maximum of 15,000 gallons.
Tank must be between 50 and 95% full.

Minimum of 8 hours, 18 minutes between delivery and testing.
There must be no dispensing or delivery during waiting time.

Minimum of 2 hours.
Test data are acquired and recorded by the system's computer.
Leak rate is calculated from the difference between the first and last data collected.
There must be no dispensing or delivery during test.

Average for product is determined by a minimum of 5 thermistors.

Must be used to detect water ingress.
Minimum detectable water level in the tank is 1.52 inches.
Minimum detectable change in water level is 0.027 inch.

Thermistors and probe must be checked and calibrated in accordance with
manufacturer's instructions.

Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
lower head pressure).   Consistent testing  at low  levels  could allow  a leak  to  remain
undetected.
EPA  leak detection regulations require testing of the  portion of the tank system which
routinely contains product.
Capacitance probes do not work with oxygenated fuels.
 Veeder-Root
 125 Powder Forest Dr.
 Simsbury, CT 06070-2003
 Tel: (203)651-2700
                              Evaluator. Midwest Research Institute
                              Tel: (816) 753-7600

                              Date of Evaluation: 05/14/93
                                                285
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                            Veeder-Root
                                                                              Revision Date: April 18,1997
 Certification:

 Leak Threshold:


 Applicability:

 Tank Capacity:


 Waiting Time:



 Test Period:




 Temperature:

 Water Sensor:



 Calibration:


 Comments:
                 TLS-200/200i/300/400 UST ATGS
             (8472 Digital Sensing Capacitance Probe)

              AUTOMATIC TANK GAUGING SYSTEM

 Leak rate of 0.1 gph with PD=99% and PFA=0.1%.

 0.071 gph. A leak is declared if the output of the measurement system equals or exceeds
 this threshold.

 Gasoline, diesel, aviation fuel, and solvents.

 Maximum of 15,000 gallons.
 Tank must be minimum 95% full.

 Minimum of 8 hours, 15 minutes between delivery and testing.
 Minimum of 30 minutes between dispensing and testing.
 There must be no delivery during waiting time.

 Minimum of 2 hours.                                                ,
 Test data are acquired and recorded by the system's computer.
 Leak rate is calculated from the difference between the first and last data collected.
 There must be no dispensing or delivery during test.

 Average for product is determined by a minimum of 5 thermistors.

 Must be used to detect water ingress.
 Minimum detectable water level in the tank is 1.52 inches.
 Minimum detectable change in water level is 0.027 inch.

Thermistors and probe must be checked and calibrated in accordance with
 manufacturer's instructions.

 Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
 lower head pressure).   Consistent testing at low levels  could  allow a  leak to remain
 undetected.                                                        I
 EPA leak detection regulations require testing  of  the portion of the tank system which
 routinely contains product
Capacitance probes do not work with oxygenated fuels.
Veeder-Root
125 Powder Forest Dr.
Simsbury, CT 06070-2003
Tel:  (203)651-2700
                              Evaluator: Midwest Research Institute
                              Tel: (816) 753-7600

                              Date of Evaluation: 05/14/93
                                                286
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                           Veeder-Root
                                                                              Revision Date: April 18,1997
Certification:

Leak Threshold:


Applicability:

Tank Capacity:


Waiting Time:


Test Period:




Temperature:

Water Sensor:



Calibration:


Comments:
          TLS-200/200i/250/250i/300/350/400 UST ATGS
          (8473 Digital Sensing Magnetostrictive Probe)

             AUTOMATIC TANK GAUGING SYSTEM

Leak rate of 0.2 gph with PD=99% and PFA=0.1 %.

0.093 gph. A leak is declared if the output of the measurement system equals or exceeds
this threshold.

Gasoline, diesel, aviation fuel, and solvents.

Maximum of 15,000 gallons.
Tank must be between 50 and 95% full.

Minimum of 8 hours, 18 minutes between delivery and testing.
There must be no delivery during waiting time.

Minimum of 2 hours.
Test data are acquired and recorded by the system's computer.
Leak rate is calculated from the difference between the first and last data collected.
There must be no dispensing or delivery during test.

Average for product is determined by a minimum of 5 thermistors.

Must be used to detect water ingress.
Minimum detectable water level in the tank is 0.544 inch.
Minimum detectable change in water level is 0.027 inch.

Thermistors and probe must be checked and calibrated in accordance with
manufacturer's instructions.

Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
lower head pressure).  Consistent  testing  at low levels  could allow  a leak to remain
undetected.
EPA leak detection regulations require testing of the portion of the tank  system which
routinely contains product.
Veeder-Root
125 Powder Forest Dr.
Simsbury, CT 06070-2003
Tel: (203)651-2700
                              Evaluator: Midwest Research Institute
                              Tel: (816) 753-7600

                              Date of Evaluation: 05/14/93
                                                287
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                            Veeder-Root
                                                                              Revision Date: April 18,1997
Certification:

Leak Threshold:


Applicability:


Tank Capacity:


Waiting Time:



Test Period:




Temperature:

Water Sensor:



Calibration:


Comments:
           TLS-200/200i/250/250i/300/350/400 UST ATGS
          (8473 Digital Sensing Magnetostrictive Probe)

              AUTOMATIC TANK GAUGING SYSTEM                i
                                    .
 Leak rate of 0.1 gph with PD=99% and PFA=1%-

 0.071 gph. A leak is declared if the output of the measurement system equals or exceeds
 this threshold.                                                      I

 Gasoline, diesel, aviation fuel, and waste oil, and solvents.
 Other liquids may be tested after consultation with the manufacturer.

 Maximum of 15,000 gallons.
Tank must be minimum 95% full.

 Minimum of 8 hours, 15 minutes between delivery and testing.
 Minimum of 30 minutes between dispensing and testing.
There must be no dispensing or delivery during waiting time.

 Minimum of 3 hours.                                                 |
Test data are acquired and recorded by the system's computer.
 Leak rate is calculated from the difference between the first and last data collected.
There must be no dispensing or delivery during test.

Average for product is determined by a minimum of 5 thermistors.

 Must be used to detect water ingress.                                           •
 Minimum detectable water level in the tank is 0.544 inch.
 Minimum detectable change in water level is 0.027 inch.

Thermistors and probe must be checked and calibrated in accordance with
manufacturer's instructions.

Not evaluated using manifold tank systems.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
lower head  pressure).   Consistent testing  at low  levels  could  allow a | leak  to remain
undetected.                                                         |
EPA leak detection regulations  require testing  of  the  portion of the tank system  which
routinely contains product.
Veeder-Root
125 Powder Forest Dr.
Sirnsbury, CT 06070-2003
Tel:  (203)651-2700
                              Evaluator: Midwest Research Institute
                              Tel: (816) 753-7600

                              Date of Evaluation: 03/14/95
                                                288
Appearance on this list Is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                   Veeder-Root
                                                                                            Revision Date: April 18, 1997
                                    TLS Series 300/400 Monitoring Systems
                                       with CSLD versions 8473 and 8493
                                           (Magnetostrictive Probes)

                             CONTINUOUS IN-TANK LEAK DETECTION SYSTEM
Certification:      Leak rate of 0.2 gph with Po=100%and PFA=O%.                                  /

Leak Threshold:   0.16 gph for single tanks at 99% operating mode.
                  0.15 gph for manifold tank systems at 99% operating mode.
                  A leak is declared and a message is printed for the operator if the output of the measurement system
                  equals or exceeds this threshold.

Applicability:      Gasoline, diesel, aviation fuel, waste oil, and solvents.

Tank Capacity:    Maximum of 38,170 gallons for single tanks and for all tanks manifolded together.
                  Contact manufacturer for tank system applications if total tank capacity exceeds 30,000 gallons.

Throughput:      Monthly maximum of 221,890 gallons.

Waiting Time:     Minimum of 3 hours between delivery and testing.

Temperature:      Average for product is determined by a minimum of 5 thermistors.

Water Sensor:     Must be used to detect water ingress.
                  Minimum detectable water level in the tank is 0.54 inch.
                  Minimum detectable change in water level is 0.027 inch.

Calibration:       Thermistors and probe must be checked annually and calibrated if necessary in accordance with
                  manufacturer's instructions.
                  System set-up menu must be checked to verify that the 99% operating mode option has been selected.

Comments:       During installation, the set-up menu provides a choice between a 99% or a 95% operating mode.
                  This evaluation covers only the 99% operating mode.  At this time, there is no evaluation covering
                  the 95% mode.
                  System reports a quantitative result of pass or fail.
                  Evaluated using both single and manifold tank systems.
                  'System collects data at naturally occurring product levels without interfering with normal tank operation,
                  and discards data from unstable periods when system performs test.
                  Data can,be collected at any level above 12 inches of product.
                  Leak rates above 1 gph are either reported as "fail" or as "no idle."
                  For valid monthly testing, a conclusive test report must be produced for each tank every month.  Systems warns
                  the operator if there are no" passing" tests completed during the month. For very active  tanks, a tank shut down
                  may betome necessary in order for the system to collect enough quiet-time data for a test.
                  Test procedure used was Midwest Research Institute's "Evaluation of Continuous In-Tank Leak
                  Detection Systems," April 17,1995.
                  Constant and variable leaks were mathematically induced into tight tank test records which were
                  collected by systems installed at various active tank sites.
                  The data base for evaluation of the system included sites with vapor recovery and blending dispensers.
                  Tanks used in this evaluation contained gasoline and diesel.
Veeder-Root
125 Powder Forest Dr.
Simsbury, CT 06070-2003
Tel: (203) 651-2700
Evaluator: Midwest Research Institute
Tel: (816) 753-7600

Date of Evaluation: 06/10/96
                                                        289
Appearance on this Jist is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                               Revision Date: April 18,1997
                                            Veeder-Root

                          TLS-2501, TLS 250i Plus, ILS 250, ILS 350, TLS-350
                      Interstitial Liquid Sensor for Fiberglass Tanks (0794390*401)

                              LIQUID-PHASE INTERSTITIAL DETECTOR

 Detector:

 Output type:              qualitative
 Sampling frequency:       continuous
 Operating principle:        float switch

 Test Results:"
                                               unleaded             synthetic^
                                               gasoline              gasoline'"
 Accuracy (%)                                  100                  100
 Response time (min)                            3.66                  3.45             ;
 Recovery time (min)                            <1                    <1
 Product activation height (cm)                    1.28                  1.27             t
 Lower detection limit (cm)                       1.84                  1.65

 * At a flow rate of 0.19 gal/hr in 7.6 cm diameter test chamber.
 '* TLS-250, TLS 250i Plus, ILS 250
 w ILS 350, TLS-350

 Specificity Results:
 Activated: diesel fuel, synthetic fuel, heating oil #2, water.

 Comments:
 EPA and many states require detection of 1/8 inch (0.32 cm) of product for groundwater monitoring.
 Test procedures used were Carnegie Mellon Research Institute's "Test                    [
 Procedures for Third Party Evaluation of Leak Detection Methods: Point Sensor Liquid
 Contact Leak Detection Systems": Final Report - November 11,1991.
 Detector is reusable.
Veeder-Root                                   Evaluator: Carnegie Mellon Research Institute
125 Powder Forest Dr.                           Tel: (412) 268-3495                   I
Simsbury, CT 06070-2003
Tel: (203) 651-2700                             Date of Evaluation: 07/17/92
                                                290
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                           Veeder-Root

                          TLS-250, TLS 2501 Plus, ILS 250, ILS 350, TLS-350
                       Interstitial Liquid Sensor for Steel Tanks (0794390-420)

                             LIQUID-PHASE INTERSTITIAL DETECTOR
                                                                              Revision Date: April 18,1997
Detector:

Output type:
Sampling frequency:
Operating principle:

Test Results:
qualitative
continuous
float switch
Accuracy (%)
Response time (min)
Recovery time (min)
Product activation height (cm)
Lower detection limit (cm)
                       unleaded^
                       gasoline'
                       100
                       6.00
                       <1
                       3.67
                       4.05
synthetic^
gasoline"
100
6.51
<1
3.62
4.17
* TLS-250, TLS 250i Plus, ILS 250, at a flow rate of 0.13 gal/hr in 4.8 cm diameter test chamber.
** ILS 350, TLS-350, at a flow rate of 0.12 gal/hr in 4.8 cm diameter test chamber.

Specificity Results:
Activated: diesel fuel, synthetic fuel, heating oil #2, water.

Comments:
EPA and many states require detection of 1/8 inch (0.32 cm) of product for groundwater monitoring.
Test procedures used were Carnegie Mellon Research Institute's Test Procedures for Third Party
Evaluation of Leak Detection Methods: Point Sensor Liquid Contact Leak Detection Systems": Final Report
November 11,1991.
Detector is reusable.
Veeder-Root
125 Powder Forest Dr.
Simsbury, CT 06070-2003
Tel: (203) 651-2700
                      Evaluator: Carnegie Mellon Research Institute
                      Tel: (412) 268-3495

                      Date of Evaluation: 07/17/92
                                                291
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                                                              Revision Date: April 18,1997
                                            Veeder-Root

                          TLS-250i, TLS 250i Plus, ILS 250, ILS 350, TLS-350
                                Liquid Sensor for Sumps (0794390-206)

                              LIQUID-PHASE INTERSTITIAL DETECTOR

 Detector:

 Output type:              qualitative                                                 \
 Sampling frequency:       continuous
 Operating principle:        float switch

 Test Results:
                                            unleaded                        synthetic.
                                            gasoline                         gasoline"
 Accuracy (%)                               100                             100
 Response time (min)                         8.19                            8.49    j
 Recovery time (min)                         <1                              <1
 Product activation height (cm)                 4.12                            3.95
 Lower detection limit (cm)                    4.67                            4.36

 * TLS-250, TLS 250i Plus, ILS 250, at a flow rate of 0.15 gal/hr in 5.8 cm diameter test chamber.
 ** ILS 350, TLS-350, at a flow rate of 0.14 gal/hr in 5.8 cm diameter test chamber.          '

 Specificity Results:
 Activated: diesel fuel, synthetic fuel, heating oil #2, water.

 Comments:                                                                             '
 EPA and many states require detection of 1/8 inch (0.32 cm) of product for groundwater monitoring.
 Test procedures used were Carnegie Mellon Research Institute's Test
 Procedures for Third Party Evaluation of Leak Detection Methods: Point Sensor Liquid
 Contact Leak Detection Systems": Final Report - November 11,1991.
 Detector is reusable.
Veeder-Root                                 Evaluaton Carnegie Mellon Research Institute
125 Powder Forest Dr.                         Tel: (412) 268-3495                     t
Simsbury, CT 06070-2003                                                            !
Tel: (203) 651-2700                           Date of Evaluation: 07/17/92              j
                                                292                                 ,
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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 ,                                                                             Revision Date: April 18,1997
                                            Veeder-Root

                         TLS-350 Discriminating Insterstitial Liquid Sensor

                             LIQUID-PHASE INTERSTITIAL DETECTOR

Detector:

Output type:               qualitative
Sampling frequency:        continuous
Operating principle:        capacitance change/ultrasonic

Test Results: *
                                 unleaded
                                 gasoline                          water
Accuracy (%)                     100                              100
Response time (min)              0.46                             1.36
Recovery time (min)               <1                               <1
Product activation height (cm)      0.23                             0.69


* At a flow rate of 0.94 gal/hr in 14.4 cm diameter test chamber.

Specificity Results:
Activated: diesel fuel (at liquid height of 0.37 cm), synthetic fuel (at 0.35 cm), heating oil #2
(at 0.43 cm).

Comments:
EPA and many states require detection of 1/8 inch (0.32 cm) of product for groundwater monitoring.
Detectors are listed as interstitial due to intended use.
Test procedures used were Carnegie Mellon Research Institute's "Test Procedures for Third Party Evaluation
of Leak Detection Methods: Point Sensor Liquid Contact Leak Detection Systems": Final Report -
November 11,1991.
Detector is reusable.
 Veeder-Root                                    Evaluaton Carnegie Mellon Research Institute
 125 Powder Forest Dr.                           Tel: (412) 268-3495
 Simsbury, CT 06070-2003
 Tel: (203) 651 -2700                              Date of Evaluation: 06/30/93
                                                 293
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                            Veeder-Root
                                                                              Revision Date: April 18,1997
                                              TLS-350
            Dispenser Pan Sensor(794380-320) and Containment Sump Sensor(794380-350)

                              LIQUID-PHASE INTERSTITIAL DETECTOR
 Detector:
 Output type:
 Sampling frequency:
 Operating principle:

 Test Results: *
qualitative
continuous
electrical conductivity/ultrasonic
 Accuracy (%)
 Response time (min)
 Recovery time (min)
 Product activation height (cm)
       unleaded
       gasoline

       100
       6.59
       17.17
       3.40
     water
low       high
100       100
4.60      5.00
2.45
                                                20.3
 * At a flow rate of 0.17 gal/hr in a 6.0 cm diameter test chamber.
 Specificity Results:
 Activated: diesel fuel (at liquid height of 4.75 cm), synthetic fuel (at 2.58 cm), heatinq oil #2
 (at 4.67 cm).

 Comments:
 EPA and many states require detection of 1/8 inch (0.32 cm) of product for groundwater monitoring.
 Test procedures used were Carnegie Mellon Research Institute's "Test Procedures for Third Party
 Evaluation of Leak Detection Methods: Point Sensor Liquid Contact Leak Detection Systems":
 Final Report - November 11,1991.                                                     j
 Detector is reusable.
Veeder-Root
125 Powder Forest Dr.
Simsbury, CT 06070-2003
Tel: (203) 651-2700
                     Evaluator: Carnegie Mellon Research Institute
                     Tel: (412) 268-3495
                                                         i
                     Date of Evaluation: 05/26/93
                                                294
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                                                              Revision Date: Apri\ 1B, 1997
                                            Veeder-Root

                                              TLS-350
                             Dual and Single Stage Hydrostatic Sensors

                             LIQUID-PHASE INTERSTITIAL DETECTOR

Detector:

Output type:               qualitative
Sampling frequency:        continuous
Operating principle:         float switch

Test Results: *
                               50 wt% Ethylene glycol in water         30 wt% Calcium chloride in water
                               UE                 down             U£                  down
Accuracy (%)                   100                100              100                 100
Response time (min)            22.52              35.75             20.46               37.07
Recovery time (min)             <1                 <1                <1                  <1
Product activation height (cm)    33.1                3.9               32.2                 4.0

* At a flow rate of 0.33 gal/hr in a test chamber of 7.8 cm diameter.

Specificity Results:
Not applicable

Comments:
Intended to monitor level of either ethylene glycol or calcium chloride solutions in  interstitial or annular space
of a double-walled tank.
Activates alarm if any significant gain or loss of solution occurs.
Test procedures used were modified by evaluator from Carnegie Mellon Research Institute's "Test Procedures
for Third Party Evaluation of Leak Detection Methods: Point Sensor Liquid Contact Leak Detection Systems":
Final Report - November 11,1991.
Detector is reusable.
Veeder-Root                                    Evaluator Carnegie Mellon Research Institute
125 Powder Forest Dr.                           Tel: (412) 268-3495
Simsbury, CT 06070-2003
Tel: (203) 651 -2700                              Date of Evaluation: 12/07/92
                                                 295
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                            Veeder-Root
                                                                              Revision Date: April 18,1997
                                              TLS-350
          Solid-State Pan/Sump Sensor (794380-321, -351), Piping Sump Sensor (794380-208),
                                     Micro Sensor (794380-340)

                              LIQUID-PHASE INTERSTITIAL DETECTOR
 Detector:

 Output type:
 Sampling frequency:
 Operating principle:

 Test Results:
qualitative
continuous
product permeable/ultrasonic/float switch
 Piping Sump Sensor (794380-208)
 Min. product level (cm)
 Precision
 Detection time (sec)

 Solid-State Pan/Sump Sensor (794380-321. -351)
 Min. product thickness (cm)
 Precision
 Detection time (sec)

 Micro Sensor (794380-340)
 Min. product thickness (cm)
 Precision
 Detection time (sec)

 Specificity Results:
 unleaded gasoline, diesel fuel, water.

 Comments:
 EPA and many states require detection of 1/8 inch (0.32 c
 Test procedures used were modified, by evaluator from EPA's "Standard
 Test Procedures for Evaluation Leak*Detection Methods: Liquid-Phase Out-of-Tank Product
 Detectors," March 1990.
unleaded
gasoline
3.51
0.011
2.60
0.010
<1
0.51
0.011
<1
of product for
s "Standard
diesel fuel
3.40
0.011
2.50
0.010
<1
0.46 |
0.007
<1
I
groundwater monitoring.
water
3.03
0.011
2.60
0.010
0.48
0.007

Veeder-Root
125 Powder Forest Dr.
Simsbury, CT 06070-2003
Tel: (203) 651-2700
                   Evaluator: Ken Wilcox Associates
                   Tel: (816) 443-2494

                   Date of Evaluation: 10/20/94
                                                296                                 ,
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                              Revision Date: April 18,1997
                                           Veeder-Root

              350 Series UST Monitoring Systems: Models ILS-350, TLS-350, TLS-350R
                            Groundwater Sensor (794380-621, -622, -624)

                        LIQUID-PHASE OUT-OF-TANK PRODUCT DETECTOR

Detector:

Output type:               qualitative
Sampling frequency:        continuous
Operating principle:         electrical conductivity

Test Results:
                                          unleaded                        synthetic
                                          gasoline                         gasoline
Accuracy (%)                              100                             100
Detection time (min:sec)                    08:55.                          06:18
Fall time (min:sec)                         54:50                           26:02
Lower detection limit (cm)                 ' 0.02                            0.02

Specificity Results:
Activated: unleaded gasoline, synthetic gasoline, n-hexane, diesel fuel, jet-A fuel, toluene, xylene(s).

Calibration:
Sensor must be checked annually for operability or in accordance with manufacturer's instructions and
calibrate/replaced if necessary.

Comments:
EPA and many states require detection of 1/8 inch (0.32 cm) of product for groundwater monitoring.
Detector is reusable.
Veeder-Root                                 Evaluator: Carnegie Mellon Research Institute
125 Powder Forest Dr.                         Tel: (412)268-3495
Simsbury, CT  06070-2003                     Dates of Evaluation: 11/20/91 (TLS-350) and
Tel: (203) 651-2700                           07/28/92
                                                297
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                            Veeder-Root

                                          ILS 350, TLS-350
                                       Adsistor Vapor Probes

                        VAPOR-PHASE OUT-OF-TANK PRODUCT DETECTOR
                                                                              Revision Date: April 18,1997
Detector:

Output type:               qualitative
Sampling frequency:       continuous
Operating principle:        adsistor

Test Results:
unleaded
gasoline
100
7:46
2:38
500
synthetic
gasoline
0
N/A*
N/A
>1000
Accuracy (%)
Detection time (min:sec)
Fall time (min:sec)
Lower detection limit (ppm)

*See Glossary.

Specificity Results:
Activated: unleaded gasoline, JP-4 jet fuel
Not Activated: synthetic gasoline, n-hexane, toluene, xylene(s).

Comments:
Test procedures used were Radian Corporation's draft report "Development of Procedures to
Assess the Performance of External Leak Detection Devices: Vapor-Phase ASTM-
Formatted Methods," June 29,1990.
                                    JP-4
                                    jet fuel
                                    100
                                    17:01
                                    3:05
                                    500
Veeder-Root
125 Powder Forest Dr.
Simsbury, CT 06070-2003
Tel: (203) 651-2700
Evaluator: Carnegie Mellon Research Institute
Tel: (412) 268-3495                   \
                                         .

Date of Evaluation: 07/24/92
                                                298
Appearance on this list is not to be construed as an endorsement by any.regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                                                                 Revision Date: Apr'rt 18,1997
                                          Vista Research, Inc.

                                Model LT-100 Version 1.0 Manual Method

                            LARGE DIAMETER PIPELINE LEAK DETECTOR

 Certification:      Leak rate of 0.2 gph with PD = 96% and PFA < 4%.

 Leak Threshold:   0.177 gph. A leak is declared if the output of the measurement system equals or exceeds
                    this threshold.

 Applicability:      Gasoline, diesel, aviation fuels, fuel oil #4, waste oil, and solvents.

 Specification:      System tests fiberglass or steel piping.
                    Tests are conducted at operating pressure to a maximum of 200 psi.

 Pipeline Capacity: Maximum of 3,400 gallons.

 Waiting Time:      None between delivery and testing.
                    None between dispensing and testing.

 Test Period:       Minimum of 2 hours after setup and after pipeline is fully isolated.
                    Test data are acquired and recorded manually.
                    Calculations are performed by tester.

 System Features:  System may be permanently installed on pipeline to perform monthly monitoring or line
                    tightness testing, or may be transported and set up to perform line tightness testing.
                    A single 2-hour test  is required consisting  of  a 1-hour monitoring period at operating
                    pressure and a 1-hour monitoring period at atmospheric pressure.
                    Preset threshold.
                    Printed message and alarm activation if leak is declared.

 Calibration:        System must be calibrated in accordance with manufacturer's instructions during system
                    setup.
Vista Research, Inc.                         Evaluator: Ken Wilcox Associates
100 View St.                               Tel: (816) 443-2494
Mountain View, CA 94042
Tel: (415) 966-1171                         Date of Evaluation:  04/15/96

                                                 299
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                               Revision! Date: APril 18. 1997
                                        Vista Research, Inc.

                              Model LT-100 Version 1.0 Manual Method

                           LARGE DIAMETER PIPELINE LEAK DETECTOR

Certification:      Leak rate of 0.1 gph with PD = 96% and PFA = 4%.
                                                                                     I
                                                                                     I
Leak Threshold:   0.077 gph. A leak is declared if the output of the measurement system equals or exceeds
                   this threshold.

Applicability:      Gasoline, diesel, aviation fuels, fuel oil #4, waste oil, and solvents.

Specification:      System tests fiberglass or steel piping.
                   Tests are conducted at operating pressure to a maximum of 200 psi.

Pipeline Capacity: Maximum of 3,400 gallons.                                          ;

Waiting Time:      None between delivery and testing.
                   None between dispensing and testing.

Test Period:       Minimum of 2 hours after setup and after pipeline is fully isolated.
                   Test data are acquired and recorded manually.
                   Calculations are performed by tester.                                 !
                                                                                     i
System Features:  System may be permanently installed on pipeline to perform monthly monitoring or line
                   tightness testing, or may be transported and set up to perform line tightness testing.
                   A single 2-hour test  is required  consisting of a 1-hour  monitoring period at operating
                   pressure and a 1-hour monitoring period at atmospheric pressure.       !
                   Preset threshold.
                   Printed message and alarm activation if leak is declared.

Calibration:       System must be calibrated in accordance with manufacturer's instructions during system
                   setup.
Vista Research, Inc.                         Evaluator: Ken Wilcox Associates
100 View St.                               Tel: (816) 443-2494
Mountain View, CA 94042
Tel: (415) 966-1171                         Date of Evaluation:  04/15/96                >


                                                 300
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                                 Revision Date: April 18, 1997
                                          Vista Research, Inc.

                               Model LT-100 Version 1.0 Primary Method

                            LARGE DIAMETER PIPELINE LEAK DETECTOR

 Certification:      Leak rate of 0.2 gph with PD = 97% and PFA < 3%.

 Leak Threshold:   0.148 gph. A leak is declared if the output of the measurement system equals or exceeds
                    this threshold.

 Applicability:      Gasoline, diesel, aviation fuels, fuel oil #4, waste oil, and solvents.

 Specification:      System tests fiberglass or steel piping.
                    Tests are conducted at operating pressure to a maximum of 200 psi.

 Pipeline Capacity: Maximum of 3,400 gallons.

 Waiting Time:      None between delivery and testing.
                    None between dispensing and testing.

 Test Period:       Maximum of 2 hours after setup and after pipeline is fully isolated.
                    Test data are acquired and recorded by a microprocessor.
                    Calculations are automatically performed by the microprocessor.

 System Features:  Systenynay be permanently installed on pipeline to perform monthly monitoring or
                    line lighfness testing, or may be transported and set up to perform line tightness testing.
                    A single 2-hour test is required consisting of a 1-hbur monitoring period at
                    operating pressure, and a 1-hour monitoring period at atmospheric pressure.
                    Preset threshold.
                    Printed message and alarm activation if leak js declared.

 Calibration:        System must be calibrated in accordance with manufacturer's instructions
                    during system setup.
Vista Research, Inc.                         Evaluator: Ken Wilcox Associates
100 View St.                                Tel: (816) 443-2494
Mountain View, CA 94042
Tel: (415) 966-1171                         Date of Evaluation: 04/15/96


                                                 301
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations

-------
Certification:

Leak Threshold:


Applicability:

Specification:
                                                            Revision Date: April 18, 1997
                      Vista Research, Inc.                          i
                                                                   r

           Model LT-100 Version 1.0 Primary Method

         LARGE DIAMETER PIPELINE LEAK DETECTOR
Leak rate of 0.1 gph with PD = 97% and PFA = 3%.                      ;

0.060 gph.  A leak is declared if the output of the measurement system equals or exceeds
this threshold.

Gasoline, diesel, aviation fuels, fuel oil #4, waste oil, and solvents.

System tests fiberglass or steel piping.
Tests are conducted at operating pressure to a maximum of 200 psi.
Pipeline Capacity: Maximum of 3,400 gallons.

Waiting Time:
Test Period:
System Features:
Calibration:
None between delivery and testing.
None between dispensing and testing.

Minimum of 2 hours after setup and after pipeline is fully isolated.
Test data are acquired and recorded by a microprocessor.
Calculations are automatically performed by the microprocessor.

System may be permanently installed on pipeline to perform monthly monitoring or line
tightness testing, or may be transported and set up to perforrj) line tightness testing.
A single 2-hour test is required consisting of a 1 hour monitoring period at
operating, and a 1 hour monitoring period at atmospheric pressure.
Preset threshold.
Printed message and alarm activation if leak is declared.

System must be calibrated in accordance with manufacturer's instructions during system
setup.
 Vista Research, Inc.
 100 View St.
 Mountain View, CA 94042
 Tel: (415) 966-1171
                         Evaluator: Ken Wilcox Associates
                         Tel: (816) 443-2494

                         Date of Evaluation:  04/15/96
                                                  302
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

-------
                                                                                Revision Date: April 18, 1997
                                         Vista Research, Inc.

                             Model LT-100 Version 1.0 Segmented Method

                            LARGE DIAMETER PIPELINE LEAK DETECTOR

 Certification:       Leak rate of 0.2 gph with PD = 97% and PFA = 3%.

 Leak Threshold:  0.174 gph. A leak is declared if the output of the measurement system equals or exceeds
                    this threshold.

 Applicability:       Gasoline, diesel, aviation fuels, fuel oil #4, waste oil, and solvents.
                                                          i
 Specification:      System tests fiberglass or steel piping.
                    Tests are conducted at operating pressure to a maximum of 200 psi.

 Pipeline Capacity:  Maximum of 3,400 gallons.

 Waiting Time:      None between delivery and testing.
                    None between dispensing and testing.

 Test Period:       Minimum of 2 hours after setup and after pipeline is fully isolated.
                   Test data are acquired and recorded by a microprocessor.
                   Calculations are automatically performed by the microprocessor.

 System Features:  System may be permanently installed on pipeline to perform monthly monitoring or line
                   tightness testing, or may be transported and set up to perform line tightness testing.
                   A single 2-hour test is required consisting of two 5-minute monitoring segments at
                   atmospheric pressure spaced 25 minutes apart, and two 5-minute monitoring segments at
                   operating pressure spaced 25 minutes apart.
                   Preset threshold.
                   Printed message and alarm activation if leak is declared.

 Calibration:       System must be calibrated in accordance with manufacturer's instructions during system
                   setup.
Vista Research, Inc.                         Evaluator: Ken Wilcox Associates
100 View St.                                Tel: (816) 443-2494
Mountain View, CA 94042
Tel: (415) 966-1171                          Date of Evaluation: 04/15/96


                                                303
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment.  Equipment should be installed and operated in accordance with all applicable laws and regulations.

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Certification:

Leak Threshold:


Applicability:

Specification:
                                                            Revision Date: April 18, 1997
                      Vista Research, Inc.

          Model LT-100 Version 1.0 Segmented Method

         LARGE DIAMETER PIPELINE LEAK DETECTOR

Leak rate of 0.1 gph with PD = 97% and PFA = 3%.

0.074 gph.  A leak is declared if the output of the measurement system equals or exceeds
this threshold.

Gasoline, diesel, aviation fuels, fuel oil #4, waste oil, and solvents.
                                                                   i
System tests fiberglass or steel piping.
Tests are conducted at operating pressure to a maximum of 200 psi.     ,
Pipeline Capacity: Maximum of 3,400 gallons.

Waiting Time:
Test Period:
System Features:
 Calibration:
 None between delivery and testing.
 None between dispensing and testing.                 .

 Minimum of 2 hours after setup and after pipeline is fully isolated.
 Test data are acquired and recorded, by a microprocessor.
 Calculations are automatically performed by the microprocessor.

 System may be permanently installed on pipeline to perform monthly monitoring or line
 tightness testing, or may be transported and set up to perform line tightness testing.
 A single 2-hour test is required consisting of two 5-minute monitoring segments at
 atmospheric pressure spaced 25 minutes apart, and two 5-minute monitoring segments at
 operating pressure spaced 25 minutes apart.
 Preset threshold.
 Printed message and alarm activation if leak is declared.

 System  must be calibrated in accordance with manufacturer's instructions during system
 setup
 Vista Research, Inc.
 100 View St.
 Mountain View, CA 94042
 Tel: (415) 966-1171
                         Evaluator: Ken Wilcox Associates
                         Tel: (816) 443-2494

                         Date of Evaluation: 04/15/96
                                                 304
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                    Warren Rogers Associates, Inc.

                            WRA Statistical Inventory Analysis, Version 5.1

             STATISTICAL INVENTORY RECONCILIATION TEST METHOD (QUANTITATIVE)
                                                                               Revision Date: April 18, 1997
  Certification:

  Leak Threshold:

  Applicability:

  Tank Capacity:

  Data Requirement:

  Comments:
Leak rate of 0.1 gph with PD=99.98% and PFA=0.02%.

0.05 gph. A leak is declared when leak rate equals or exceeds this threshold.

Gasoline, diesei, aviation fuel, and fuel oil #4.

Maximum of 18,000 gallons.

Minimum of 30 days of product level and flow through data.

Not evaluated using manifold tank systems.
Of 41 data sets submitted for evaluation, all were analyzed with conclusive results
Median monthly throughput for tanks evaluated was 1000 gallons.
Leak rates of 0.05, 0.1, and 0.20 gph were used in evaluation.
A portion of data sets evaluated was supplied by vendor.
Warren Rogers Associates, Inc.
747 Aquidneck Aye.
Middletown, Rl 02840
Tel: (401) 846-4747
                      Evaluator: Ken Wilcox Associates
                      Tel: (816) 443-2494

                      Date of Evaluation: 12/18/90
                                                305
K*^£nJ?? 'iSt 1"? * bS "TW! f ?" endorseme"t by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                                                               Revisio^i Date: April 1,1997
                                       Warrick Controls, Inc.

                                       Model DFP-25 Sensor

                              LIQUID-PHASE INTERSTITIAL DETECTOR

Detector:

Output type:               qualitative
Sampling frequency:       continuous
Operating principle:        product solubility


Test Results:
                                unleaded
                                gasoline'          diesel            water
Detection time (hr.min:sec)       00:06:50          04:14:40         N/A
Fall time (min:sec)               N/A*              N/A             N/A
Lower detection limit (cm)         <2.54             <2.54            N/A

* See glossary.

Specificity Results:
Activated: unleaded gasoline, #2 diesel.
Not Activated: water (in 12 hours).

Comments:
Sensor is activated when hydrocarbon-sensitive wax is dissolved, releasing a spring that activates an alarm.
Detector is not reusable, and must be replaced after contact with hydrocarbons.             j
Fall time is not applicable, since sensor must be replaced after activating.
Evaluator claims that this sensor will respond to any material that is capable of dissolving the hydrocarbon-
sensitive wax, but will not respond to water.
Liquid level was set at 1 inch (2.54 cm) during test.                                       L   ,   .    ,   .
Test  procedures  used were Ken Wilcox Associates'  "Alternative Test  Procedures for Evaluating  Leak
Detection Methods: Evaluation of Liquid Level Sensors," September 1996.
 Warrick Controls, Inc.                         Evaluator: Ken Wilcox Associates, Inc.
 4237 Normandy Court                         Tel: (816)443-2494
 Royal Oak, Ml 48073
 Tel: (81 0) 549-4900                           Date of Evaluation: 11/1 8/96
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                                                              Revision Date: April 18,1997
                                       Warrick Controls, Inc.

                                         Model 5700 Meter
                                           PVP-2 Sensor

                        VAPOR-PHASE OUT-OF-TANK PRODUCT DETECTOR

 Detector:

 Output type:               quantitative
 Sampling frequency:       continuous
 Operating principle:        adsistor

 Test Results:
                                         unleaded              synthetic             JP-4
                                         gasoline               gasoline             jet fuel
 Accuracy (%)                             25.4                  -100.0               157.1
 Bias(%)                                 14.4                  -100.0               108.3
 Precision (%)                             7.6                    N/D*                20.4
 Detection time (min)                      >60                   N/A*                >60
 Fall time (min)                            38                    N/A                 >60
 Lower detection limit (ppm)                1353.3                N/D                 N/D

 * See glossary.

 Specificity Results:
 Not Activated: unleaded gasoline, synthetic gasoline, n-hexane, JP-4 jet fuel, toluene, xylene(s).

 Comments:
 Test procedures used were Radian Corporation's draft report "Development of Procedures to
 Assess the Performance of External Leak Detection Devices: Vapor-Phase ASTM-
 Formatted Methods," June 29,1990.
Warrick Controls, Inc.                          Evaluator: Carnegie Mellon Research Institute
4237 Normandy Court                         Tel: (412) 268-3495
Royal Oak, Ml 48073
Tel: (810)549-4900                           Date of Evaluation: 09/10/91
                                                307
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the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                                                             Re vision Date: April 18,1997
                 Watson Systems, Inc. (formerly EnviroQuest Technologies Limited)

                                          Enviro Tite SIR
                                     (also known as SIRAS 99.6)

            STATISTICAL INVENTORY RECONCILIATION TEST METHOD (QUANTITATiyE)
Certification:

Leak Threshold:

Applicability:

Tank Capacity:

Data Requirement:


Comments:
Leak rate of 0.1 gph with PD=99.6% and PFX=0.4%.

0.05 gph.  A leak is declared when leak rate equals or exceeds this threshold.

Gasoline, diesel, aviation fuel, and fuel oil #4.

Maximum of 18,000 gallons.

Minimum of 31 days to make an SIR evaluation with minimum 95% confidence
at the rate of 0.1 gph; 45 to 60 days for greater confidence.

Not evaluated using manifold tank systems.                        i
Of 41  data sets submitted for evaluation, 5 were not analyzed due to unusable data.
Median monthly throughput for tanks evaluated was 16,700 gallons.
Leak rates ranging from 0.0500 to 0.2043 were used in evaluation.
Data sets evaluated were supplied by evaluator.
 Watson Systems, Inc.
 4501 Madison
 Kansas Crty, MO 64111
 Tel: (816) 756-0774
                          Evaluaton Midwest Research Institute
                          Tel: (816) 753-7600

                          Date of Evaluation: 04/03/92
                                                 308
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 the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

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            .                                                                   Revision Date: April 18,1997
                  Watson Systems, Inc. (formerly EnviroQuest Technologies Limited)

                                 SIRAS Software System, Version 2.0

            STATISTICAL INVENTORY RECONCILIATION TEST METHOD (QUANTITATIVE)

 Certification:       Leak rate of 0.1 gph with PD = 99.3% and PFA = 0.7%
                    Version 2.0 is designed to meet annual tests requirements.

 Leak Threshold:    0.05 gph.  A leak is declared when the calculated leak rate equals or exceeds this
                    threshold.

 Applicability:       Gasoline, diesel, aviation fuel, and fuel oil #4.

 Tank Capacity:     Maximum of 30,000 gallons.
                    Size limits using  an acceptable protocol  for manifold tank systems  have not been
                    determined.

 Data Requirement:  Minimum of 30 days of usable product level and flow through data.

 Comments:        , Not evaluated for manifold tank systems using an acceptable protocol.
                    27% of data sets evaluated were from manifold tank systems.
                    Of 56 data sets submitted for evaluation, 6 were not analyzed due to unusable data.
                    Median monthly throughput for tanks evaluated was 73,518 gallons.
                    Leak rates ranging from 0.0458 to 0.2500 gph were used in evaluation.
                    Data sets evaluated were supplied by evaluator.
Watson Systems, Inc.                             Evaluator. Midwest Research Institute
4501 Madison                                    Tel: (816)753-7600
Kansas City, MO 6411.1
Tel: (816) 756-0774           .                    Date of Evaluation: 08/23/93
                                                309
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the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                                                             Revision Date: April 18,1997
                 Watson Systems, Inc. (formerly EnviroQuest Technologies Limited)

                               SIRAS Software System, Version 2.8.3

            STATISTICAL INVENTORY RECONCILIATION TEST METHOD (QUANTITATIVE)

Certification:
Leak Threshold:


Applicability:

Tank Capacity:
Leak rate of 0.2 gph with PD = 99.999% and PFA = 0.01 %.
Version 2.8.3 is designed to meet monthly monitoring requirements.

0.1 gph. A leak is declared when the calculated leak rate equals or exceeds this
threshold.

Gasoline, diesel, aviation fuel, and fuel oil #4.

Maximum of 30,000 gallons.
Size limits  using  an acceptable protocol for  manifold tank systems! have  not been
determined.
Data Requirement:  Minimum of 30 days.of usable product level and flow through data.     |
                                           .
                                                                                    i -
Comments:         Not evaluated for manifold tank systems using an acceptable protocol.
                    27% of data sets evaluated were from manifold tank systems.
                    Of 56 data sets submitted for evaluation, 6 were  not analyzed due to unusable data.
                    Median monthly throughput for tanks evaluated was 73,518 gallons.
                    Leak rates ranging from 0.0458 to 0.2500 gph were used in evaluation.
                    Data sets evaluated were supplied by evaluator.
Watson Systems, Inc.
4501 Madison
Kansas City, MO 64111
Tel: (816) 756-0774
                           Evaluator: Midwest Research Institute
                           Tel: (816) 753-7600

                           Date of Evaluation: 08/23/93
                                                310
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tho method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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 Certification:

 Leak Threshold:


 Applicability:

 Specification:



 Pipeline Capacity:

 Waiting Time:


 Test Period:



 Calibration:
                                                           Revision Date: April 18,1997
              Western Environmental Resources

                       Model PLT-100R

               LINE TIGHTNESS TEST METHOD

Leak rate of 0.1 gph with PD=100% and PFA=0%.

0.05 gph. A leak is declared if the output of the measurement system equals or exceeds
this threshold.

Gasoline, diesel, aviation fuel, fuel oil, waste oil, and solvents.

System tests fiberglass and steel pipelines.
Tests are conducted at 150% operating pressure.
Mechanical line leak detector must be removed from pipeline for duration of test.

Maximum of 80 gallons.

None between delivery and testing.
Minimum of 1 hour between dispensing and testing.

Minimum of 30 minutes.
Test data are acquired and recorded manually.
Two tests with no time between tests are required before a leak can be declared.

System must be checked annually and calibrated if necessary in accordance with
manufacturer's instructions.
Western Environmental Resources
POBox37
Bakersfield, CA 93302
Tel: (805) 326-0173
                            Evaluator: Vista Research
                            Tel: (415) 966-1171

                            Date of Evaluation: 11/21/90
                                                311
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the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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Certification:

Leak Threshold:


Applicability:

Tank Capacity:


Waiting time:
Test Period:
Temperature:

Groundwater:



Calibration:




Comments:
                                                         Revision Date: April 18,1997
             Western Environmental Resources

                       AES System II

VOLUMETRIC TANK TIGHTNESS TEST METHOD (OVERFILL)

   Leak rate of 0.1 gph with PD=97.7% and PFA=2.3%.

   0.05 gph.  A leak is declared if the output of the measurement systenj equals or
   exceeds this threshold.

   Gasoline, diesel, aviation fuel, fuel oil, waste oil, and solvents.

   Maximum of 15,000 gallons.
   Tank must be minimum 100% full.

   Between delivery and the beginning of test, waiting time is included in the
   waiting time after "topping off".
   Between "topping off" and beginning test, waiting time is computer-dictated by
   real-time analysis of level and temperature data.                   !
   Total waiting time is approximately 4 to 12  hours.                  ;
   There must be no dispensing or delivery during waiting time.

   Minimum of 2 hours (two 1 -hour tests).
   Test data are acquired and recorded by a computer.
   Leak rate is calculated from the last 1 hour, 30 minutes of test
   period data.
   There must be no dispensing or delivery during test.

   Average for product is determined by a minimum of 5 temperature sensors.

   Depth to groundwater in backfill must be determined.  If groundwater is above
   bottom of tank, product level must be adjusted to provide a minimum net pressure of
   2 psi at bottom of the tank during test.

   Level sensors must be calibrated before each test in accordance wit!)
   manufacturer's instructions.                                     I
   Temperature sensor must be checked annually and calibrated if necessary in
   accordance with manufacturer's instructions.

   Not evaluated using manifold tank systems.
 Western Environmental Resources
 POBOX37
 Bakersfield, CA 93302
 Tel: (805) 326-1073
                            Evaluaton Vista Research
                            Tel: (415) 966-1171

                            Date of Evaluation: 12/20/90
                                                312
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 the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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Certification:

Leak Threshold:


Applicability:

Tank Capacity:


Waiting Time:




Test Period:




Temperature:

Groundwater:



Calibration:




Comments:
                                                          Revision Date: April 18,1997
             Western Environmental Resources

               AES System II - (Large Tanks)

VOLUMETRIC TANK TIGHTNESS TEST METHOD (OVERFILL)

  Leak rate of 0.1 gph with PD=98.9% and PFA=1.1 %.

  0.05 gph. A,leak is declared if the output of the measurement system equals or
  exceeds this threshold.

  Gasoline, diesel, aviation fuel, fuel oil, waste oil, and solvents.

  Maximum of 75,000 gallons.
  Tank must be minimum 100% full.

  Minimum of 24 hours after delivery.
  Between "topping off" and beginning test, waiting time is computer-dictated by
  real-time analysis of level and temperature data and must be minimum of 1 hour.
  There must be no dispensing or delivery during waiting time.

  Minimum of 4 hours.
  Test data are acquired and recorded by a computer.
  Leak rate is calculated from the last 3 hours of test period data.                   !
  There must be no dispensing or delivery during test.

   Average for product is determined by a minimum of 12 thermistors.

   Depth to groundwater in backfill must be determined. If groundwater is above
   bottom of tank, product level must be adjusted to provide a minimum net pressure of
   2 psi at bottom of the tank during test.

   Level sensors must be calibrated before each test in accordance with
   manufacturer's instructions.
   Thermistors must be checked annually and calibrated if necessary in
   accordance with manufacturer's instructions.

   Not evaluated Using manifold tank systems.
Western Environmental Resources
POBox37
Bakersfield, CA 93302
Tel: (805) 326-0173
                           Evaluator: Ken Wilcox Associates
                           Tel: (816) 443-2494

                           Date of Evaluation: 02/28/92
                                                313
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the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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Certification:

Leak Threshold:


Applicability:

Tank Capacity:


Waiting Time:

Test Period:

Groundwater:
                                                           Revision Date: April 18,1997
                        Xerxes Corp.

        Xerxes Trucheck Hydrostatic Monitoring System

          DOUBLE WALLED TANK TIGHTNESS TEST

Leak rate of 0.1 gph with PD=99% and PFA=1 %•

0.05 gph.  A leak is declared if the output of the measurement system equals or exceeds
this threshold.

Gasoline, diesel, aviation fuel, and fuel oil #4.

Maximum  of 30,000 gallons.
Tank must be between 0 to 100% full.

None between delivery and testing.

Minimum of 10 hours.

Depth to groundwater in backfill must be determined before and after test.j
When groundwater level  is above bottom of tank but below top, test should be repeated if
groundwater level increases by more than 7 inches during test.
When groundwater level  is above tank, test should be repeated if groundwater level
increases  by more than 5 inches during test.
 Xerxes Corp.
 7901 Xerxes Ave.
 Minneapolis, MN 55431
 Tel: (612) 887-1890
                           Evaluator: Robert Plunkett, Ph.D.
                           Tel: (612) 338-0945

                           Date of Evaluation: 01/07/93
                                                314
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                    PART III

        LEAK DETECTION EQUIPMENT
         THIRD PARTY EVALUATIONS
                UNDER REVIEW
               ALPHABETICAL BY VENDOR,
                 THEN BY TEST METHOD,
             FINALLY BY EQUIPMENT MODEL,
                        315
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the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

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 Test Method
 Automatic Tank Gauge
 (0.1 and 0.2 gph)

 Continuous ATG
 Vendor
 Alert Technologies
Alert Technologies
 Una Tightness Test Method    Campo/Miller, Inc.
Automatic Tank Gauge
(0.1 and 0.2 gph)

Vapor-Phase Product
Detector

Automatic Tank Gauge
(0.1 gph)

Automatic Tank Gauge
(0.1 gph)

Continuous Automatic Tank
Gauge
Continuous Automatic Tank
Gauge

Vapor-Phase Product
Detector

Non-Volumetric Tank
Tightness Test (Vacuum)

Statistical Inventory
Reconciliation (0.2 gph)

Statistical Inventory
Reconciliation (0.1 gph)

Statistical Inventory
Reconciliation (Qualitative)

Automatic Tank Gauge
(0.1 gph)

Statistical Inventory
Reconciliation (02. gph)

Statistical Inventory
Reconciliation (0.2 gph)

Statistical Inventory
Reconciliation (0.1 gph)

Non-Volumetric Tank
Tightness Test (Vacuum)

Statistical Inventory
Reconciliation (0.1 gph)
 ENRAF B.V.
 Delft Instruments

 HNU
INCON Intelligent Controls,
Inc.

INCON Intelligent Controls,
Inc.

INCON Intelligent Controls,
Inc.
Marley Pump
Mine Safety Appliances
SIR International, Inc.
SIR International, Inc.
Teledata, Inc.
Tidel Engineering, Inc.
 Equipment Model
 2000Xand2000XB
3000 and 4000
                            PL400
STIC 818
DL-101; HW-101; ISPI-101; PI-101
TS1000
TS 2000
SCALD (Applies to Incon Controller
Models TS 1000, TS 2000,
TS1001 ,TS 2001
Sensor Model TS-DLP)

ST1400-1800, ATG, FMS, LLM
Tank-Check
NDE Environmental Corp.      U3 Vacuum
Mitchell's SIR Program (Version
2.7)

Mitchell's SIR Program (Version
2.6)

Tankmate Version 3.12
EMS 3500
Triangle Environmental, Inc.   TRI SIR (Version 1.01)
USTMAN Industries, Inc.
USTMAN Industries, Inc.
SDT-USA
Warren Rogers Assoc.
USTMAN SIR 95.2A


USTMAN SIR 95.2


SDT Model 150


SIRA Version 5.2
    Revision Date: April 18,1997

Evaluator/Date of Evaluation
Ken Wilcox Associates
02/28/94 and 06/22/94
                ,
Ken Wilcox Associates
02/20/92

Jetronix Radio Engineering
Laboratories 05/16/91
Ken Wilcox Associates
01/02/94

Carnegie Mellon Research Institute
11/28/91,02/05/92, 03/05/92

Ken Wilcox Associates
08/05/92   |
           i
Ken Wilcox Associates
05/10/91    :

Ken Wilcox Associates
09/14/95
ADA Technologies
10/12/92   |

Carnegie Mellon Research Institute
05/31/91
           i
Ken Wilcox Associates
06/25/96   j

Ken Wilcox Associates
6/8/95
           i
Ken Wilcox Associates
6/8/95

PB Com. Co.
9/29/95

Ken Wilcox Associates
03/16/95    \

Ken Wilcox Associates
8/23/95

Ken Wilcox Associates
12/12/95

Ken Wilcox Associates
12/12/95

Ken Wilcox Associates
03/01/96

Ken Wilcox Associates
09/01/96    '
                                                         316                                       !
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the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.   .

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                      PART IV

      ACCEPTABLE TEST PROTOCOLS
         ALPHABETICAL BY TEST METHOD, THEN BY
                      PROTOCOL DATE
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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Automatic Tank Gauging Systems                                                  i
"Standard Test Procedures for Evaluating Leak Detection Methods: Automatic Tank Gauging Systems",
EPA/530/UST-90/006, March 1990                                                   !


Bulk Tank Testing
"Alternative Test Procedures for Evaluating Leak Detection Methods: Evaluation of Bulk Field-constructed
Tanks", Ken Wilcox Associates, February 1996                                        [


Continuous In-Tank Leak Detection Systems
"Evaluation Protocol for Continuous In-Tank Leak Detection Systems", Midwest Research Institute, April 1995


Large Pipeline Leak Detection Systems
"Modified Third-Party Testing Protocol for Large Pipeline Leak Detection", EFA Technologies, Inc., August
1995


Liquid-Phase Out-of-Tank and Interstitial Product Detectors
"Standard Test Procedures for Evaluating Leak Detection Methods: Liquid-Phase Out-of-Tank Product
Detectors", EPA/530/UST-90/009, March 1990                                         I
                                                                                  i
"Development of Procedures to Assess the Performance of External Leak Detection Devices:! Liquid-Phase
ASTM-Formatted Methods -  Revised Draft to Include JP-4 Jet Fuel", Radian Corporation,    i
June 29,1990

Test Procedures for Third Party Evaluation Of Leak Detection Methods: Cable Sensor Liquid Contact Leak
Detection Systems", Carnegie Mellon Research Institute, November 11,1991

Test Procedures for Third Party Evaluation of Leak Detection Methods: Point Sensor Liquid Contact Leak
Detection Systems", Carnegie Mellon Research Institute - Advanced Devices and Materials Group, November
11,1991                                                                           !


Non-volumetric Tank Tightness Testing  Methods                                    ,
"Standard Test Procedures for Evaluating Leak Detection Methods: Non-volumetric Tank Tightness Testing
Methods", EPA/530/UST-90/005, March 1990


Pipeline Leak Detection Systems
"Standard Test Procedures for Evaluating Leak Detection Methods: Pipeline Leak Detection Systems",
EPA/530/UST-90/010, September 1990                                               |
                                               318
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tha method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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Statistical Inventory Reconciliation Methods
"Standard Test Procedures for Evaluating Leak Detection Methods:  Statistical Inventory Reconciliation
Methods","EPA/530/UST-90/007, June 1990

"Protocol for Determining Applicability of a SIR Method for Manifolded Tanks and Determining Size
Limitation", Developed under coordination by the SIR team of the National Work Group on Leak Detection
Evaluations, November 1996


Vapor-Phase Out-of-tank Product Detectors
"Standard Test Procedures for Evaluating Leak Detection Methods:  Vapor-Phase Out-of-Tank Product
Detectors", EPA/530/UST-90/008, March 1990

"Development of Procedures to Assess the Performance of External Leak Detection Devices: Vapor-Phase
ASTM-Formatted Methods", Radian Corporation, June 6,1990

"Development of Procedures to Assess the Performance of External Leak Detection Devices: Vapor-Phase
ASTM-Formatted Methods", Radian Corporation, June 29,1990


Volumetric Tank Tightness Testing Methods
"Standard Test Procedures for Evaluating Leak Detection Methods:  Volumetric Tank Tightness Testing
Methods", EPA/530/UST-90/004, March 1990
                                                319
 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
 the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                                     320
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                     PARTV

       LEAK DETECTION EQUIPMENT

        MAINTENANCE CHECKLISTS
                         321
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the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                                    322
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•\ , ''ATG-MAINTENANCE:CHEC|00 ;* -
Magnetostrietivfeanffratrasorac Profiles /„
f .Minimum procedures to Jbe conducted by a qualified service technician.
Has all input wiring been inspected for proper entry and termination,
including testing for ground faults?
Have the probe and sensors been checked for visible damage such as
residue buildup, cracks, or breaks? 1>2
Has the accuracy of the level sensor been tested? 3
Has the accuracy of the water sensor been tested? 4
Has the appropriateness of the high water level alarm setting been
verified? 5
Are all alarms activated and functioning properly?
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
Comments:
1.   Damaged probes must be cleaned or replaced as appropriate. Probes used in heavier products such as waste oil
     should be checked more frequently. Heavier products can leave deposits on the probe shaft and float assemblies
     that may restrict the measurement capacity of the probe.
2.   Because the magnetostrictive probe consists of moving parts, its sensors can be damaged by excessive frictional
     wear as well as residue build-up. Residue build-up can affect the weight of the sensor as well as inhibit its ability to
     slide freely along the guide tube. Inaccuracies in the product level measurements could indicate a problem with the
     probe sensors. For additional testing of the probe sensors, perform the following test:
          a.   Remove the probe from the tank and place it carefully on the ground.
          b.   Place the water sensor flush with the bottom of the probe shaft and place the product float near the
               middle of the probe shaft.
          c.   Check the height reading on the tank gauge monitor (after allowing sufficient time for the monitor to
               respond).  ,
          d.   Measure the -distance from the bottom of the probe to the bottom of the product float and compare it with
               the reading on the monitor.
3.   To test the accuracy of the product sensor:
          a.   Using the tank console monitor, take an initial fuel level reading.
          b.   Dispense one gallon of product into a calibrated container.
          c.   Using the tank console monitor, take a second fuel level reading.
          d.   Verify that the change in tank volume is one-gallon.
4.   To test the accuracy of the water sensor:
          a.   Remove probe from the tank.
          b.   By hand, move the water float up the probe to a point higher than the high-water alarm set point.
          c.   The monitor should respond with a high water alarm report. (The water height may also appear on the
               tank monitor display console.
          d.   Check this height against its actual location.
5.   The high water level alarm should not be set so high that water ingress into the tank goes undetected for long
     periods of time.

Disclaimer: This checklist is not intended to tell the technician how to perform the maintenance and system check.
Technicians should follow manufacturers'  detailed instructions while making sure that all of the items on this checklist
have been covered.

                                                      323
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the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                                     324                                     '
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the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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ATG MAINTENANCE CBDECKLIST
Mass Buoyancy Probes
Minimum procedures to be conducted by a qualified service technician.
, , ,. t , f
Has all input wiring been inspected for proper entry and termination,
including testing for ground faults?
Has the probe been checked for visible damage (such as residue buildup or
cracks)? 1
Has the battery been tested within the last 3 months?
Has the accuracy of the product sensor been tested? 2
Has the accuracy of the water sensor been tested? 3
Has the appropriateness of high- water level alarm setting been verified?4
Are all alarms activated and functioning properly?
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
Comments:
1.   Damaged probes must be cleaned or replaced, as appropriate.  The mass displacement probe is very susceptible to
     dirt and residue build-up and should be checked semi-annually and cleaned, if necessary.  Mass displacement
     probes used in viscous products such as waste oil should be checked more frequently. Products of this type can
     leave heavy deposits on the probe which may inhibit the accuracy of the probe.  Checking a reconciliation report
     and/or manual sticking could verify the system's accuracy.

2.   To test the accuracy of the product sensor:
        a.   Using the tank console monitor, take an initial fuel level reading.
        b.   Dispense one gallon of product into a calibrated container.
        c.   Using the tank console monitor, take a second fuel level reading.
        d.   Verify that the change in tank volume is one gallon.

3.  To test the accuracy of the water sensor:  (Note: water sensor is separator from the mass buoyancy probe.)
        a.  Remove the probe from the tank.
        b.  By hand, move the water float up the probe to a point higher than the high water limit.
        c.  The monitor should respond with a high water alarm.  (The water height may also appear on the tank
            monitor display console.)
        d.  Check this height against its actual location.

4.  The high water level alarm should not be set so high that water ingress into the tank goes undetected for long periods
    oftime.
Disclaimer: This checklist is not intended to tell the technician how to perform the maintenance and system check.
Technicians should follow manufacturer's detailed instructions while making sure that all of the items on this checklist
have been covered.


                                                      325
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the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                                     326
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the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                            APPENDIX A

GLOSSARY OF TERMS

Accuracy:
The degree to which the measured leak rate agrees with the induced leak rate on the average. If a method is
accurate, it has a very small or zero bias.

Activated:
Refers to the state of a qualitative detector's response when indicating the presence of product.

Bias:
An indication of whether the device's measured leak rate consistarttly overestimates (positive bias) or
underestimates (negative bias) the actual induced leak rate.

Bulk Modulus (of Elasticity):
The ratio of hydrostatic pressure to the relative change it produces in volume.

Continuous Automatic Tank Gauging Systems (Continuous ATGS):
These systems use an ATG probe to collect data continually and combine this with software to identify time
intervals when there is no activity in the tank and the data are stable enough for analysis.  An algorithm then
combines data from a number of such periods until there is enough evidence to make a determination about
the leak status of the tank. This type of system functions like an ATGS except that it does not require that the
tank be taken out of service for a set period of several hours whenever a test is to be done.  Instead, it uses
data from shorter stable time periods and combines the results to estimate a leak rate and perform a test.
The system may default to a standard or shut down ATG test (requiring the tank to be out of service for a few
hours) at the end of the month if sufficient good quality have not been obtained over the month. These
systems are designed to meet the monthly monitoring performance standard of detecting a leak of 0.20 gallon
per hour or 150 gallons per month with 95% probability of detection and 5% probability of false alarm. They
test the tank vessel itself.

Continuous Detector:
Detectors that operate continuously, are always present and are never turned off.

Continuous In Tank Leak Detection Systems (CITLDS):
These systems are designed to allow the tank to operate continuously or nearly continuously without
interruption for leak detection tests. They typically have some sensors permanently installed in the tank,
combined with a microprocessor in a console.  In addition, they may be connected to the dispensing meters,
allowing for automatic jecording and use of"dispensing data. There may also be a provision for direct input of
data from a keyboard or pad, to allow for entry of deliverry receipts, for example.

Currently there are three types of such continuous systems that are reaching the market.  These three types
are referred to as "Continuous ATGS," "Continual Reconciliation," and "Automatic Monthly Inventory Control."

Detection time:
The sum of rise time and lag time.

Fall time:
The elapsed time after a detector has  responded to a test hydrocarbon and is removed and has recovered to
95% of its original baseline level or there is no detectable signal output.

False Alarm:
Declaring a tank to be leaking when in fact it is tight.
                                                327
Appearance on mis list is not to be construed as an endorsementby any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

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GLOSSARY OF TERMS CONTINUED

Groundwater:
Water table or water within the excavation around a tank.

Induced Leak Rate:                                                                  I
The actual leak rate, in gallons per hour (gph), used during the evaluation against which the results from a
given test device will be compared.

intermittent Detector:
Detectors that monitor on a regular basis. An intermittent detector may be a hand held device that is portable
or a permanently installed device that is used to periodically test for the presence of product.  ;

Lag Time:
The elapsed time from the detector's first contact with test product to the first detectable signal.
                                                                                    i
Leak threshold:
The measured leak rate at which the test method detects the tank to be leaking. This leak rate will always be
less than or equal to the leak rate requirement for the various release detection methods given in 40 CFR §
280 Subpart D-Release Detection. (Please note that some states and other regulatory authorities may have
different requirements). The minimum leak threshold for declaring a leak is experimentally determined from
the results of the evaluation of the release detection method.

Manifold tank systems:
Tanks connected by piping that allow the tank system to function as a single tank.  A typical manifolded tank
system usually consists of two tanks connected by a siphon tube that permits the product in the tanks to be at
the same level while product is being pumped out of only 1 tank.

Measured Leak Rate:
A positive number in gallons per hour (gph), measured by test device that indicates the amount of product
leaking out of the tank. A  negative number would indicate that something was being added to the tank. The
performance of a method is based on how well the measured leak rate compares to the actual induced leak
rate.

MER:
The Maximum Effective Range, the  longest length of sensor cables and/or jumper cables that can be
connected to form a leak detection network.                                             ,

N/A:
Not Applicable                                                                       J

N/D:
Not Determined                                                                     I

N/R:                                                                                i
No Response                                                                        ;

Net Pressure:
In this document this term refers to a pressure difference between the pressure in the tank and the  pressure
related to the groundwater. If the net pressure is positive, the pressure in the tank is greater than that due to
groundwater. If net pressure is negative, the pressure in the tank is less than that due to groundwater.

Nominal Leak Rate:
The set or target leak rate to be achieved as closely as possible during the evaluation of a leak|detection
method. It is a positive number expressed in gallons per hour (gph).


                                                328
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment  Equipment should be installed and operated in accordance with all applicable laws and regulations.

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GLOSSARY OF TERMS CONTINUED

Precision:
The degree of agreement of repeated measurements of the same parameter.  Precision estimates reflect
random error and are not affected by bias.

Pressure:
In this document this term refers to a pressure which is at or above atmospheric. Any pressure reading at or
above atmospheric is listed as positive; any pressure reading less than atmospheric (vacuum) is listed as
negative.

Probability of Detection, P(D):
The probability of  detecting a leak of a given size, usually expressed as a percentage.

Probability of False Alarm, P(FA):
The probability of  declaring a tank to be leaking when it is tight, usually expressed as a percentage.

Probe:
A component of a detection system that must come into contact with product before product can be declared
or measured.

Qualitative Responses:
The type of detector response that indicates only the presence or absence of product without determining the
specific product concentration or thickness.

Quantitative Response:
A type of detector response that quantifies the concentration or thickness of product present.

Relative Accuracy:
A function of systematic error, or bias, and random error, or precision.  Smaller values indicate better
accuracy.  See entry for "Accuracy."

Resolution:
The smallest change in the quantity being measured which the measurement system is capable of detecting.

Response Time:
A general  term that refers to the more specific terms of lag time, rise time, and fall time.

Rise Time:
The elapsed time  from a detector's first detectable signal in response to the presence of product to an output
that is 95% of full scale for a quantitative detector or activated for a qualitative detector.

Specificity:                                              '
Specificity applies to vapor and liquid sensors and lists products or components of products that these sensors
can detect. Specificity for quantitative sensors is the ratio of sensor output, or measured concentration, to the
actual concentration of hydrocarbon test gas expressed as a percentage. Specificity for qualitative sensors is
reported as activated if the sensor responds within 24 hours. Otherwise, specificity is reported as inactivated.

Total Pressure:
In this document this term equals the sum of the pressure in ullage space and the pressure due to product
head.

Ullage:
The un-wetted portion of the tank, i.e. that portion of the tank not in contact with product.
                                                 329
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

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 GLOSSARY OF TERMS CONTINUED


 Vacuum:
 In this document this term refers to any pressure that is less than atmospheric.
                                                  330
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
tha method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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                                           APPENDIX B
 April 18, 1997

MEMORANDUM

TO:    Vendors of Leak Detection Equipment/Procedures

FROM: Curt D. Johnson, Chairperson

RE:    National Work Group on Leak Detection Evaluation's List of Third-Party
        Evaluated Leak Detection Equipment/Procedures

If you are reading this memo, you have received our latest edition of the list. We would appreciate any
comments you have concerning the list. Please comment to me at the address, phone number, fax number or
e-mail address listed on the next page.

If you need to contact other members in the work group, the same information is included for them on the next
page. Also, the work group team and team leaders are listed on the page following the member list to help
you determine who you may need to contact.

Please send new evaluations and/or protocols to be evaluated by the work group to my attention at the
address on the following page. To enable the work group to properly review the third-party tests, three (3)
copies of all applicable information indicated  in the enclosed "Leak Detection Equipment Review - Document
List" must be included.

Since the draft list was sent out back in January of 1995, the list has sometimes been referred to as the "EPA
work group list of approved leak detection equipment". The work group and EPA are concerned that similar
statements may begin to appear in sales literature distributed by vendors. We request that you do not refer to
the list in this way for the following reasons.

1.   This is not an EPA or EPA work group list.  This draft list was prepared by an independent work
     group consisting of state and EPA members.

2.   Neither EPA nor the work group approve leak detection equipment or procedures. The draft list
     does not include "approved" leak detection equipment/procedures.  It includes leak detection
     equipment/procedures that the work group reviewed and confirmed, were third-party tested  in
     accordance with either an EPA or other acceptable test protocol, and the test confirmed that the
     equipment/procedures meet EPA performance standards.  Approval or acceptance  of leak detection
     equipment and procedures is the responsibility of the implementing  agency, which in most cases is the
     state environmental agency.

We try to send only 1 copy of the list per company per location.  If you received more than 1 copy at
your location, or if the copy needs to be sent to another person, please notify me and we will make
the necessary corrections.

Enclosure:  Work Group Members,'Work Group Teams, Leak Detection Equipment Review-
       Document List
                                               331
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

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WORK GROUP-MEMBERS
MEMBER
Curt D. Johnson
Mike Kadri
Beth DeHaas
Russ Brauksieck
David Wiley
Lamar Bradley
JeffTobin
Ellen Van Duzee
Shahla Farahnak
Bill Faggart
ADDRESS
Alabama Department of Environmental
Management
PO Box 301 463
Montgomery, AL 36130-1463
Michigan Department of Environmental
Quality
UST Division
PO Box 301 57
Lansina. Ml 48909-7657
Maine Department of Environmental
Protection
Statehouse Station No. 17
Auqusta, ME 04333
New York State Department of
Environmental Conservation
50 Wolf Rd., Room 360
Albany, NY 12233-3750
USEPA
401 M St. Southwest
5402G
Washinqton, DC 20460
Tennessee Department of Environment and
Conservation
UST Division, 4th Floor L and C Tower
401 Church St.
Nashville, TN 37243-1 541
State of Montana
Department of Environmental Quality
Box200901
Helena. MT 59620-0901
USEPA Idaho Operations
1 435 N. Orchard St.
Boise. ID 83706-2239
California State Water Resource Control
Board Division of Clean Water Program
PO Box 944212
Sacramento, CA 94244-2120
USEPA
401 M St. Southwest
5402G
Washinqton, DC 20460
PHONE/FAX/E-MAIL
(334)271-7986
Fax (334) 270-5631
cdj@adem.state.al.us
(517)335-7204
Fax (517) 335-2245
funkhoup@deq.state.mi.us
(207)287-2651
Fax (207) 287-7826
beth.dehaas@state.me.us
(518)457-4351
Fax (51 8) 457-4332
russ.brauksieck@dec.mailnet.state.ny.us
(703)603-7178
Fax (703) 603^91 63
wiley.david@epamail.epa.gov
(615)532-0952
(615)532-0945
Fax (615) 532-0938
Ibradley2:@mail.state.tn.us
(406)444-1417
Fax ;(406) 444-1 902
jtobin@mt.gov
(208)378-5762
Fax (208) 378-5744
vanduzee.ellen@epamail.epa.gov
(916)227-4350
Fax (916) 227-4349
sfarahna@ix.netcom.com
(703) 603-7151
Fax (703) 603-9163
faggart.billy@epamail.epa gov
                                                  332
Appearance on this list fs not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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WORK GROUP TEAMS
TEAM
Automatic Tank Gauging (ATG) Systems
and
Large Tank ATG Systems
Continuous In-Tank Leak Detection Systems
List Administration
and
Other Leak Detection Methods
Non-Volumetric Tank Tightness Test Methods
PipelineiLeak Detection Systems
;' ': •• ,' ', :' •'• and '.. y .- ':.'' '"••'- •' ' ;
Large Pipeline Leak Detection Systems
Statistical Inventory Reconciliation ;(SIR) Methods
Vapor/Liquid Sensors for Interstitial/External
Monitoring Methods
and
Other Interstitial ^Monitoring Methods
Volumetric Tank Tightness TestJ(VTTT) Methods
and
Large Tank VTTT Methods
LEADER
Ellen Van Duzee
Shahla Farahnak
Curt Johnson
Shahla Farahnak
Mike'Kadri .
Lamar Bradley
David;Wiley
BethDeHaas
MEMBERS
Russ Brauksieck
Beth DeHaas
MikeKadri
BillFaggart
David Wiley
Russ Brauksieck
Jeff Tdbin
Shahla Farahnak
JeffTobin
Mike Kadri
BillFaggart
MikeKadri
Russ Brauksieck
                                                  333
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.

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 LEAK DETECTION  EQUIPMENT REVIEW - DOCUMENT LIST
                                                                                   i
                                                                                   i

This information lists the documentation required for review of third-party evaluation of underground storage
tank and line leak detection equipment or test methods.
                                                                                   i

1. A complete third-party evaluation report, including:


      D a.  Details of the evaluation procedure if the EPA standard procedure was not used fof the evaluation.
            If the EPA evaluation procedure was used, list any deviations or modifications to the procedure.

      D b.  Complete set of all the EPA required attachment sheets.

      DC.  Individual test logs and/or field notes.                                        r

      D d.  Statistical calculations and any applicable graphs or charts generated during the evaluation.
                                                                                   f
      D e.  A statement from the evaluator confirming that all equipment at the test site
           was properly maintained and calibrated to the level of accuracy necessary for a valid evaluation.
                                                                                   I
D 2. An outline of the manufacturer's operating procedures for the equipment/method.  The
        summary procedure must be dated and include a revision number,  if  applicable, i A copy of the
        summary procedure must be provided to the third-party evaluator for enclosure in the report.  Also
        required is a statement from the manufacturer confirming the use of the submitted procedure during
        the evaluation.

D 3. Complete installation/operations manual for the equipment/method.

D 4. A sample of the test report (including field work-sheets) which will be submitted to the
        owner/local implementing agency.

D 5. Outline of the test procedures in high groundwater areas. These procedures should be
        reviewed for adequacy by the third-party evaluator and a statement to that effect should be included
        with the report.

D 6. Outline of the test procedures for manifold tank systems. These procedures should be '
        reviewed for adequacy by the third-party evaluator and a statement to that effect should be included
        with the report.

O 7. An affidavit from the manufacturer confirming that there are no mutual financial
        interests between the equipment manufacturer and the third-party evaluator.

D 8. A resume, including all applicable formal training and experience, from personnel who
        conducted the evaluation.

D 9. Equipment calibration procedures and manufacturer recommended schedule of
        calibration.
                                                334                                !,
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
tha method or equipment Equipment should be installed and operated in accordance with all applicable laws and regulations.

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 Leak Detection Equipment Review - Document List (Continued)


 D10. The name, address, and phone number of the technical personnel serving as the
          manufacturer's representative for the response to the regulatory agency questions on the equipment
          or test method.

 D11. Correspondence letters from state agencies who have reviewed the equipment/method.


      12.  Following documentation for all permanently-installed leak detection equipment:


         Oa.  A list of installers authorized by the manufacturer to install the leak detection
                   equipment.

         Db.  A list of service personnel authorized by the manufacturer to conduct the
                  annual functional test (required for all leak detection equipment).

         DC.  An outline of the maintenance procedure (including a list of the parts or
                  functions  of the  system to be checked,  calibrated,  or  programmed) for  the annual
                  functional test by authorized service personnel.

         Dd.  An outline (1-2 pages) "Equipment Check Guidelines for Inspectors" prepared
                  by the manufacturer. This summary should guide  local agency inspectors on proper field
                  procedures to  follow when  inspecting equipment for proper operation, for  attempting to
                  access the stored history (for alarms or failed  tests) to determine compliance with state
                  requirements.

         De.  A sample of the reports generated and/or printed by the equipment (for all
                  equipment models), and an explanation of the items in the report, if not self-explanatory.

         Df.  Information on how the control panel modules connected to the various
                  probes are labeled.  The information on the panel should  be directly comparable to the
                  equipment name, model/part/probe number which will be included in the committee's list.
                  If necessary, a permanent label containing that information should be affixed to the panel.

     13. Following documentation for the methods using tracer analysis:

         Da.  Name and certification of the laboratory anajyzing vapor samples.

         Db.  Quality Assurance Manual of the laboratory.

         DC. Method and amount of tracer injection.

         Dd. Vapor sample collection method and chain of custody records.

         De. Third-party certification for capability of the test-method to detect leaks from
                 the ullage portion of the tank.
                                                335
Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of
the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.



  A U.S. GOVERNMENT PRINTING OFFICE: 1997 518-869/83712

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