Office of Underground Storage Tanks, Washington, DC 20460   January 1998
          Federal UST Technical Regulations
 This package gives those interested in federal underground storage tank (UST) requirements the
 actual text of the regulations, without extra information (and paper) that they may not need.
 Other information resources are listed at the bottom.

 This package contains 40 Code of Federal Regulations Part 280, "Technical Standards and
 Corrective Action Requirements for Owners and Operators of Underground Storage Tanks
 (UST)," except for Subpart H on Financial Responsibility and Subpart I on Lender Liability.
 Also, it does not include UST State Program Approval regulations, which are found at Part 281.

 Other resources are available.  If you are interested in plain-English guides describing
 requirements and good tank system management practices, you can download them from
 www.epa.gov/OUST/pubs/index.htm or get free paper copies from our Hotline at 800.424-9346
 or from the National Center for Environmental Publications and Information (NCEPI) at 800.490-
 9198. If you are interested in background and explanatory information for the federal UST
 regulations, see the Federal Register Preamble, also available in paper form from the Hotline or
NCEPI. Finally, you can access and keyword-search the federal UST regulations and the
Preamble by pointing your Internet browser to www.epa.gov/OUST/fedlaws/techrule.htm.

This package differs from what appeared in the Federal Register of September 23, 1988 in only
three ways:
 *      Overfill prevention equipment requirements at 280.20(c)(l)(ii) were changed to allow
       USTs to be filled to a higher level before the equipment triggers;
*      The date by which automatic line leak detectors had to meet certain standards, found at
       280.40(a)(3), was changed to September 22 1991; and
*      a typographical error in the footnotes to the table following 280.40(c), which incorrectly
       implied that all pressurized piping must be secondarily contained, was corrected.

Although the pages are dated 7-1-96, this package is up-to-date to the best of our knowledge as
of January 1998.  While we try to keep the information timely and accurate, we make no
expressed or implied guarantees. These materials do not constitute "official" versions, and they
are not intended, nor can they be relied upon, to create any rights enforceable by any party in
litigation with the United  States.

We hope this helps!
S:\SHARE\OUST\RULES\TECHCOVR-WPD

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§279.73
          40 CFR Ch. I (7-1-96 Edition)
Environmental Protection Agency
                               Pt. 280
§279.11 by performing analyses or ob-
taining1 copies of analyses or other in-
formation documenting that the  used
oil fuel meets the specifications.
  (b) Record  retention.  A generator,
transporter,   processor/re-refiner,   or
burner who first claims that used oil
that Is to be burned for energy recov-
ery  meets the specifications for  used
oil fuel under §279.11, must keep copies
of analyses of the used oil  (or other in-
formation used to make the determina-
tion) for three years.

[57 FR 41612, Sept. 10, 1992, as amended at 68
FB 28428, May 3, 1993]

§279.73 Notification.
  (a) Identification numbers. A used oil
fuel  marketer subject to  the require-
ments of this subpart who  has not pre-
viously complied with the notification
requirements  of RCRA  section  3010
must comply with  these requirements
and  obtain an EPA identification num-
ber.
  (b) A marketer who has not received
an EPA identification number may ob-
tain one by notifying the Regional Ad-
ministrator of their used  oil activity
by submitting either:
  (1) A completed EPA Form  8700-12; or
  (2) A letter requesting an EPA identi-
fication number. The letter should in-
clude the following information:
  (i) Marketer company name;
  (11) Owner of the marketer;
  (ill)  Mailing address  for  the  mar-
keter;
  (iv) Name and telephone number for
the marketer point of contact; and
  (v) Type of used oil activity (i.e., gen-
erator directing shipments of off-speci-
fication used oil to a burner).

[67 FR 41612, Sept. 10,  1992, as amended at 58
FB 33342, June 17, 1993]

§279.74 Tracking.
  (a) Off-specification used  oil delivery.
Any used oil marketer who  directs a
shipment  of  off-specification used oil
to a burner must keep a record of each
shipment 'of used oil to a used oil burn-
er. These records may take the form of
a log, invoice, manifest, bill of lading
or other shipping  documents. Records
for each shipment must include the fol-
lowing information:
  (1)  The  name  and address  of the
transporter who delivers the used oil to
the burner;
  (2) The name and address of the burn-
er who will receive the used oil;
  (3) The EPA identification number of
the transporter who delivers the used
oil to the burner;
  (4) The EPA identification number of
the burner;
  (5) The quantity of used oil shipped;
and
  (6) The date of shipment.
  (b) On-specification used oil delivery. A
generator,  transporter, processor/re-re-
finer, or burner who first claims that
used oil  that is to be burned for energy
recovery meets the fuel specifications
under  §279.11 must keep a record of
each shipment of used oil to  an on-
specification used oil burner. Records
for each  shipment must include the fol-
lowing information:
  (1) The name and address of the facil-
ity receiving the shipment;
  (2) The quantity of used oil fuel deliv-
ered;
  (3) The date of shipment or delivery;
and
  (4) A cross-reference to the record of
used oil  analysis or other information
used to  make the determination that
the oil meets the specification as re-
quired under §279.72(a).
  (c) Record retention. The records de-
scribed in paragraphs (a) and (b) of this
section must be maintained for at least
three' years.
[57 FR 41612, Sept. 10, 1992, as amended at 58
FR 26426, May 3, 1993]

§279.75  Notices.
  (a) Certification. Before a used oil gen-
erator, transporter, or  processor/re-re-
finer directs the  first shipment of 'off-
specification used' oil fuel to a burner,
he must  obtain a one-time written and
signed notice from the burner certify-
ing that:
  (1) The burner has notified EPA stat-
ing the  location and general descrip-
tion of used oil management activities;
and
  (2) The burner will burn the off-speci-
fication used oil  only in an industrial
furnace  or   boiler   identified  in
§279.61(a).
  (b) Certification retention. The certifi-
cation  described in  paragraph  (a) of
                                    976
this section must be  maintained  for
three years from the date the last ship-
ment of  off-specification used  oil  is
shipped to the burner.

Subpart  I— Standards for Use as a
     Dust  Suppressant   and  Dis-
     posal of Used Oil

§279.80 Applicability.

  The requirements  of  this subpart
apply to all used oils that cannot be re-
cycled  and are therefore being  dis-
posed.

§279.81 Disposal.
  (a)  Disposal  of hazardous  used  oils.
Used oils that are identified as a haz-
ardous waste and cannot be recycled in
accordance  with this  part  must  be
managed  in accordance with the haz-
ardous  waste  management  require-
ments of parts 260 through 266, 268, 270
and 124 of this chapter.
  •(b) Disposal of nonhazardous used oils.
Used oils that are not hazardous wastes
and cannot be recycled under this part
must be disposed in accordance with
the requirements of parts 2S7 and 258 of
this chapter.

§ 279.82 Use as a dust suppressant
  (a) The  use of used oil as a dust sup-
pressant  is  prohibited,  except when
such activity takes place in one of the
states listed in  paragraph (c)  of  this
section.
  (b) A State may petition (e.g., as part
of its authorization petition submitted
to EPA under §271.5 of this chapter or
by a separate submission) EPA to allow
the use of used oil (that is  not mixed
with hazardous waste and does not ex-
hibit a characteristic other than ignit-
ability) as a  dust  suppressant.  The
State must show that it has a program
in place to prevent the use of .used oil/
hazardous waste mixtures or used oil
exhibiting a characteristic other than
ignitability as a dust  suppressant.  In
addition,  such  programs  must mini-
mize  the impacts of use as a dust sup-
pressant on the environment.
  (c) List of States. [Reserved]
PART 280-TECHNICAL STANDARDS
  AND  CORRECTIVE  ACTION RE-
  QUIREMENTS FOR OWNERS AND
  OPERATORS OF  UNDERGROUND
  STORAGE TANKS (USD

  Subpart A— Program Scope and Interim
              Prohibition

Sec.
280.10 Applicability.
280.11 Interim prohibition for deferred UST
   systems.
280.12 Definitions.

     Subpart B— UST Systems: Design,
 Construction, Installation and Notification

280.20 Performance standards for new UST
   systems.
280.21 Upgrading of existing UST systems.
280.22 Notification requirements.

     Subpart C— General Operating
             Requirements

280.30 Spill and overfill control.
280.31 Operation and maintenance of corro-
   sion protection.
280.32 Compatibility.
280.33 Repairs allowed.
280.34 Reporting and recordkeeplng.

      Subpart D— Release Detection

280.40 General requirements for all UST sys-
   tems.
280.41 Requirements for petroleum UST sys-
   tems.
280.42 Requirements   for  hazardous sub-
   stance UST systems.
280.43 Methods  of  release detection  for
   tanks.
280.44 Methods of release detection for pip-
   ing.
280.45 Release detection recordkeeplng.

      Subpart E— Release Reporting,
     Investigation, and Confirmation

280.50 Reporting of suspected releases.
280.51 Investigation due to off-site Impacts.
280.52 Release investigation and confirma-
   tion steps.
280.53 Reporting  and cleanup of spills and
   overfills.

Subpart F— Release Response and Correc-
   tive Action for UST Systems Containing
   Petroleum or Hazardous Substances

280.60 General.
280.61 Initial response.
                                                                                     977

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§280.10

290.63 T"'M«i abatement measures and alto
    obwk.
230.83 Initial site characterization.
280,64 Free product removal.
850.85 Investigations for soil and ground-
    water cleanup.
280.88 Corrective action plan.
280.67 Public participation.

  Subport G-Ou»-of-Sefvtce UST Systems
              end Closure

280.70 Temporary closure.
280.71 Permanent  closure and  ohanges-ln-
    .senrfce.
280.72 Assessing the  site  at  closure  or
    change-In-service.
280.73 Applicability  to previously  closed
    UST systems.
280.74 Closure records.

     Subport H-Flnonclol Responsibility

 280.90   Applicability.
 280.91   Compliance dates.
 280.92   Definition of terms.
 280.93   Amount and scope of required finan-
    cial responsibility.
 280.94   Allowable mechanisms and combina-
    tions of mechanisms.
 280.95   Financial test of self-insurance.
 280.98   Guarantee.
 280.97   Insurance and risk retention group
/    coverage.
 280.98   Surety bond.
 280.99   Letter of credit.
 280.100  Use of state-required mechanism.
 280.101  State fund or other state assurance.
 280.102  Trust fund.
 280.103  Standby trust fund.
 280.104  Local government bond rating test.
 280.105  Local government financial-test.
 280.106  Local government guarantee.
 280.107  Local government fund.
 280.108  Substitution of financial assurance
     mechanisms by owner or operator.
 280.109  Cancellation or nonrenewal by a pro-
     vider of financial assurance.
 280.110  Eeporting by owner or operator.
 280.111  Becordkeeping.
 280.112  Drawing  on  financial  assurance
     mechanisms.
 280.113 Release from the requirements.
 280.114 Bankruptcy or other Incapacity of
     owner or operator or provider of finan-
     cial assurance.
  280.115 Replenishment of guarantees, letters
     of credit, or surety bonds.
  280.116  Suspension  of  enforcement. [Re-
     served]

         Subpott l-Lender Liability
          40 CFR Ch. I (7-1-96 Edition)

280.220  Ownership of *n nnderrround stor-
   age tank or underground ttoi*ce tank
   system or facility or property on which
   an underground storage tank or under-
   ground storage tank system is located.
230.230  Operating an underground storage
   tank or underground storage tank sys-
   tem.

         APPENDICES TO PART 280
APPENDIX I TO PART 280—NOTIFICATION FOB
   UNDEBOBOUMD STORAGE TANKS (FORM)
APPENDIX n TO PART 280—LIST OP AGENCIES
   DESIGNATED TO RECEIVE NOTIFICATIONS
APPENDIX m TO PART 280—STATEMENT FOR
   SHIPPING TICKETS AND INVOICES
 • AUTHORITY: 42 TJ.S.C. 6912,6891.6991a. 8991b,
69910,6991d, 6991e, 6991f, 6991g. 6991h.
  SOURCE:  53 FR 37194, Sept. 23, 1988, unless
otherwise noted.
  280.200  Definitions.
  280.210  Participation in management.
  Subpart A—Program Scope and
          Interim Prohibition

 5280.10 Applicability.
   (a)  The  requirements  of this  part
 apply to all owners and operators of an
 UST system as defined In §280.12 except
 as otherwise  provided In  paragraphs
 (b), (c), and (d) of this section. Any
 UST system listed In paragraph (c)  of
 this  section must meet the  require-
 ments of §280.11.
   (b)  The following UST systems are
 excluded from the requirements of this
 part:
   (1) Any UST system holding hazard-
 ous  wastes listed  or Identified under
 Subtitle C of  the Solid Waste  Disposal
 Act,  or a mixture of such hazardous
 waste and other regulated substances.
   (2)  Any  wastewater treatment tank
 system that  Is part  of a  wastewater
 treatment facility  regulated under sec-
 tion  402 or 307(b)  of the Clean Water
 Act.
   (3)  Equipment  or  machinery that
 contains regulated substances for oper-
 ational purposes such as hydraulic lift
 tanks and electrical equipment tanks.
   (4) Any UST  system whose  capacity
 is 110 gallons  or less.
   (5) Any UST system that contains a.
 de minimis concentration of regulated
 substances.
   (6) Any emergency spill  or  overflow
 containment  UST  system that is expe-
 ditlously emptied after use.
 Envfrorwiwntol Protection Agency

   (o) Deferrals. Subp&rts B, C, D, B, and
 Q do not apply to any of the following
 types of UST systems:
   (1) Wastewater treatment tank sys-
 tems;
   (2) Any UST systems containing ra-
 dioactive  material that are regulated
 under the Atomic  Energy Act of 1951
 (42 U.S.C. 2011 and following);
   (3) Any UST system that Is part of an
 emergency generator system at nuclear
 power generation  facilities regulated
 by the Nuclear Regulatory Commission
 under 10 CFR part 60, appendix A;
   (4) Airport hydrant fuel distribution
 systems; and
   (6)  UST  systems  with  field-con-
 structed tanks.
   (d)  Deferrals.  Subpart  D does not
 apply to any UST system that stores
 fuel solely for use by emergency power
 generators.

 $280.11 -Interim prohibition  for  de-
    ferred UST systems.
   (a)  No  person may install  an UST
 system listed in §280.10(c) for  the pur-
 pose  of storing regulated substances
 unless the  UST system  (whether  of
 single- or double-wall construction):
   (1) Will prevent releases due to corro-
 sion or structural failure for the  oper-
 ational life of the UST system;
   (2) Is cathodically protected against
 corrosion, constructed of noncorrodlble
- material,  steel clad with a noncorrod-
 lble material, or designed in a manner
 to prevent the release or threatened re-
 lease  of any stored substance; and •
   (3) Is constructed or lined with mate-
 rial that is compatible with the stored
 substance.
   (b) Notwithstanding paragraph  (a) of
 this section, an UST system without
 corrosion protection may be installed
 at a site that is determined by a corro-
 sion expert  not to  be corrosive enough
 to cause it to have a release due to cor-
 rosion during its operating life. Owners
 and  operators  must maintain records
 that demonstrate compliance  with the
 requirements of this paragraph for the
 remaining life of the tank.
   NOTE: The National Association of  Corro-
 sion Engineers Standard RP-02-85, "Control
 of External Corrosion  on Metallic Buried,
 Partially Burled, or Submerged Liquid Stor-
 age Systems," may be used  as guidance for
 complying with paragraph (b) of this section.
                              §280.12

1280.12  Definitions.
  Aboveground release means  any  re-
lease to the surface of  the land or to
surface water. This includes, but is not
limited  to, releases from the above-
ground portion of an UST system and
aboveground  releases associated with
overfills and transfer operations as the
regulated substance  moves to or from
an UST system.
  Ancillary  equipment means  any  de-
vices including, but not limited  to,
such devices as piping, fittings, flanges,
valves,  and pumps used to distribute,
meter, or control the flow of regulated
substances to and from an UST.
  Belowground release means  any  re-
lease to the subsurface of the land and
to ground water. This includes, but is
not limited to, releases from the below-
ground  portions of an underground
storage tank system and belowground
releases associated with overfills and
transfer operations  as  the regulated
substance moves to or from an under-
ground storage tank.
  Beneath  the  surface  of  the ground
means beneath the ground surface  or
otherwise covered with earthen mate-
rials.
  Cathartic protection is  a technique  to
prevent corrosion of a metal surface by
making  that surface the- cathode of an
electrochemical cell. For example, a
tank system  can be cathodically pro-
tected through the  application of ei-
ther galvanic anodes or impressed cur-
rent.
  Cathodic protection tester means a per-
son  who can demonstrate an under-
standing of the principles and measure-
ments of all common types of cathodic
protection systems as applied to buried
or submerged metal piping and tank
systems. At a minimum, such persons
must have education and experience in
soil resistivity! stray  current, struc-
ture-to-soil potential,  and component
electrical  isolation  measurements  of
buried metal piping and tank  systems.
  CERCLA means the  Comprehensive
Environmental  Response,  Compensa-
tion, and Liability Act of  1980,  as
amended.
  Compatible means the ability of two
or more substances  to  maintain their
respective physical and  chemical prop-
erties upon contact with one another
for the design life of the tank system
                                       978
                                                                                                                              979

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§280.12

under conditions likely to be encoun-
tered in the UST.
  Connected piping means all under-
ground piping: including valves, elbows,
joints, flanges,  and flexible connectors
attached  to  a tank system  through
which regulated  substances flow. For
the purpose of  determining how much
piping is  connected to  any  individual
UST system, the piping that joins two
UST systems should be allocated equal-
ly between them.
  Consumptive use with respect to heat-
ing oil means consumed on the premr
ises.
  Corrosion expert means a person who,
by reason of thorough knowledge of the
physical sciences and the principles of
engineering and mathematics acquired
by a professional education and related
practical experience, is qualified to en-
gage in the practice of corrosion con-
trol on buried or submerged metal pip-
ing systems and metal  tanks.  Such a
person must be accredited or certified
as being qualified by the National As-
sociation  of Corrosion Engineers or be
a registered professional engineer who
has certification or licensing  that in-
cludes
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§280.12

and  petroleum-baaed substances com-
prised of a complex blend of hydro-
carbons derived from crude oil though.
processes of separation, conversion, up-
grading,  and finishing, such as motor
fuels, Jet fuels, distillate fuel oils, re-
sidual fuel oils, lubricants, petroleum
solvents, and used oils.
  Release means any spilling, leaking,
emitting, discharging, escaping, leach-
ing  or disposing from  an UST Into
ground water, surface water  or sub-
surface soils.
  Release  detection means  determining
whether a release of a regulated sub-
stance has occurred from the UST sys-
tem Into the environment or into the
Interstitial space between the UST sys-
tem and Its secondary barrier  or sec-
ondary containment around it.
  Repair means to restore a tank or
UST  system component  that  has
caused a release of product from the
UST system.
  Residential tank Is  a tank located on
property used primarily  for dwelling
 purposes.
  SARA means the  Superfund Amend-
 ments and Beauthorlzation Act of 1986.
  Septic tank is  a water-tight covered
 receptacle designed to receive or proc-
 ess, through liquid  separation or bio-
 logical  digestion,   the   sewage  dis-
 charged from a building sewer. The ef-
 fluent from such receptacle is distrib-
 uted for disposal through the soil and
 settled solids and scum from the tank
 are pumped out periodically and hauled
 to a treatment facility.
   Storm-water or wastewater collection
 system means piping, pumps, conduits,
 and any other equipment necessary to
 collect  and transport the flow of sur-
 face water run-off  resulting from pre-
 cipitation, or domestic, commercial, or
 industrial wastewater to and from re-
 tention areas or any areas where treat-
 ment Is designated to occur. The col-
 lection of storm water and wastewater
 does not Include  treatment  except
 where incidental to conveyance.
   Surface  impoundment  is a  natural
 topographic depression, man-made ex-
 cavation,  or diked  area formed  pri-
 marily of earthen  materials (although
  it may be lined with man-made mate-
  rials) that is not an injection well.
    Tank is a stationary device designed
  to contain  an  accumulation  of regu-
         40 CFR Ch. I (7-1-96 EdMton)

lated substances  and constructed  of
non-earthen materials (e.g., concrete,
steel, plastic) that provide structural
support.
  Underground  area  means an  under-
ground room, such as a basement, cel-
lar,  shaft  or vault, providing enough
space for physical inspection of the ex-
terior of the tank situated on or above
the surface of the floor.
  Underground release means any below-
ground release.
  Underground  storage tank  or UST
means any one or combination of tanks
(Including  underground  pipes  con-
nected thereto) that Is used to contain
an  accumulation  of regulated sub-
stances, and the volume of which (In-
cluding the volume of underground
pipes connected  thereto) Is 10 percent
or more beneath the surface of the
ground. This  term  does not Include
any:
   (a) Farm or  residential tank of 1,100
 gallons or less capacity  used for stor-
 ing motor fuel for noncommercial pur-
 poses;
   (b) Tank used  for storing heating oil
 for consumptive use on the premises
 where stored;
   (c) Septic tank;
   (d) Pipeline  facility (including gath-
 ering lines) regulated under:
   (1) The  Natural Gas Pipeline Safety
 Act of 1968 (49 U.S.C. App. 1671, et seq.),
 or
   (2)  The Hazardous Liquid Pipeline
 Safety Act of 1979 (49 U.S.C. App. 2001,
 et seg.), or
   (3) Which Is an Intrastate pipeline fa-
 cility  regulated under state laws com-
 parable to the provisions of the law re-
 ferred to  in paragraph (d)(l) or (d)(2) of
 this definition;
   (e) Surface  Impoundment, pit, pond,
 or lagoon;
   (f) Storm-water or wastewater collec-
 tion system;
   (g) Flow-through process tank;
   (h) Liquid trap or associated gather-
 ing lines directly related to oil or gas
 production and gathering operations;
 or
    (1) Storage tank situated In an under-
  ground area (such as a basement, cel-
  lar, mineworking,  drift, shaft, or tun-
  nel)  if the storage tank is situated
  upon  or above the surface of the floor.
 Environmental Protection Agency

 The term "underground storage tank"
 or "UST" does not Include any pipes
 connected to  any  tank which is de-
 scribed In paragraphs (a) through (i) of
 this definition.
   Upgrade means the addition or retro-
 fit of some systems such as cathodlc
 protection, lining, or spill and overflll
 controls to  Improve the ability of an
 underground storage tank system to
 prevent the release of product.
   UST system or Tank system means an
 underground storage tank, connected
 underground piping, underground an-
 cillary equipment, and  containment
 system, if any.
   Wastewater treatment tank  means  a
• tank  that Is  designed to receive and
 treat an influent wastewater through
 physical, chemical, or biological meth-
 ods.

 Subport B—UST  Systems:  Design,
     Construction, Installation and
     Notification

 $280.20  Performance  standards  for
     new UST systems.
   In order  to prevent releases due to
 Structural failure, corrosion, or spills
 and overfills for  as long as the UST
 system Is used to  store regulated sub-
 stances, all owners and  operators  of
 new UST systems must meet the fol-
 lowing requirements.
   (a) Tanks. Each tank must be prop-
 erly designed and constructed, and any
 portion underground  that  routinely
 contains product  must be  protected
 from  corrosion,  In accordance  with  a
 code of practice developed by a nation-
 ally  recognized association  or inde-
 pendent testing laboratory as specified
 below:
    (1) The tank Is constructed of fiber-
 glass-reinforced plastic; or
   NOTK The following Industry codes may be
 used to comply with paragraph (a)(l) of this
  section: Underwriters Laboratories Standard
  1316,  "Standard for  Glass- Fiber-Reinforced
  Plastic Underground Storage Tanks for Pe-
  troleum Products"; Underwriter's  Labora-
  tories of Canada CAN4-S615-M83. "Standard
  for Reinforced Plastic Underground Tanks
  for Petroleum Products"; or American Soci-
  ety of Testing and Materials Standard D4021-
  88, "Standard Specification for Glass-Flber-
  Relnforced  Polyester Underground Petro-
  leum Storage Tanks."
                             §280.20

  (2) The tank is constructed of steel
and eathodloally protected in the fol-
lowing manner:
  (i) The tank is coated with a suitable
dielectric material;
  (II)  Field-Installed cathodlo protec-
tion systems are designed by a corro-
sion expert;
  (ill)  Impressed current systems  are
designed to allow determination of cur-
rent operating  status  as required in
$280.31(0); and
  (iv) Cathodic protection systems are
operated and maintained In accordance
with §280.31 or according to guidelines
established by the implementing agen-
cy; or
  NOTE: The following codes and standards
may be used to comply with paragraph (a)<2)
of this section:
  (A) Steel Tank Institute "Specification for
STI-P3 System of External Corrosion Pro-
tection   of  Underground Steel  Storage
Tanks";
  (B) Underwriters Laboratories Standard
1746, "Corrosion Protection Systems for Un-
derground Storage Tanks!';
  (O Underwriters Laboratories of Canada
CAN4-S603-M8S, "Standard for Steel Under-
ground Tanks for Flammable and Combus-
tible Liquids," and CAN4-G03.1-M85, "Stand-
ard for Galvanic Corrosion Protection Sys-
tems for Underground Tanks for Flammable
and Combustible Liquids," and CAN4-S631-
 M84, "Isolating Bushings for Steel Under-
 ground Tanks Protected with Coatings and
 Galvanic Systems"; or
  (D) National Association of Corrosion En-
 gineers Standard RP-OZ-85, "Control of Kx-
 ternal Corrosion on Metallic  Buried, Par-
 tially Buried, or Submerged Liquid Storage
 Systems,"  and Underwriters  Laboratories
 Standard 68, "Standard for  Steel Under-
 ground Tanks for Flammable and Combus-
 tible Liquids."
   (3) The tank Is constructed of a steel-
 flberglass-reinforced-plastic composite;
 or
   NOTE: The following Industry codes may be
 used to comply with paragraph (a)(3) of this
 section: Underwriters Laboratories Standard
 1746, "Corrosion Protection Systems for Un-
 derground Storage Tanks," or the Associa-
 tion for Composite Tanks ACT-100, "Speci-
 fication for the Fabrication of FRP Clad Un-
 derground Storage Tanks."
   (4) The tank Is constructed of metal
 without additional corrosion protec-
 tion measures provided that:
   (i) The tank is Installed at a site that
 is determined by a corrosion expert not
                                      982
                                                                                                                               983
                                                                                             167-153  0—96	32

-------
§280.20

to be corrosive enough to cause it to
have a release due to corrosion during
its operating life; and
  (it)  Owners and  operators maintain
records that  demonstrate compliance
with  the requirements  of paragraphs
(a)(4)(i) for the remaining life of the
tank; or
  (5) The tank construction and corro-
sion protection are determined by the
implementing agency to be designed to
prevent the release or threatened re-
lease  of any stored regulated substance
in a manner that is no less protective
of human health and the environment
than  paragraphs (a) (1)  through (4) of
this section.
  (b) Piping. The piping that routinely
contains regulated substances and is in
contact with the ground must be prop-
erly  designed,  constructed,  and pro-
tected from corrosion in accordance
with a code of practice developed by a
nationally recognized  association  or
independent testing laboratory as spec-
ified below:
  (1) The piping is constructed of fiber-
glass-reinforced plastic; or
  NOTE The following codes and standards
may bo used to comply with paragraph (b)(l)
of this section:
  (A) Underwriters Laboratories Subject 971,
"UL Listed Non-Metal Pipe";
  (B)  Underwriters  Laboratories  Standard
667, "Pipe Connectors for  Flammable and
Combustible and LP Gas";
  (O Underwriters Laboratories of Canada
Guide ULC-107,  "Glass Fiber  Reinforced
Plastic Pipe and Fittings for  Flammable
Liquids"; and
  (D) Underwriters Laboratories of Canada
Standard CAN 4-S633-M81, "Flexible Under-
ground Hose Connectors."
  (2) The piping is constructed of steel
and cathodically protected in the fol-
lowing manner:
  (i) The piping is coated with a suit-
able dielectric material;
  (11)  Field-installed cathodic  protec-
tion systems  are designed by a corro-
sion expert;
  (ill) Impressed current systems are
designed to allow determination of cur-
rent  operating status  as required in
§280.31(0); and
  (Iv) Cathodic protection systems are
operated and maintained in accordance
with  §280.31  or guidelines established
by the implementing agency; or
          40 CFR Ch. I (7-1-96 Edition)

 NOTE: The following codes and standards
may be used to comply with paragraph (b)(2)
of this section:
 (A) National Fire Protection Association
Standard  30,  "Flammable and Combustible
Liquids Code";
 (B) American Petroleum Institute Publica-
tion 1616, "Installation of Underground Pe-
troleum Storage Systems";
 (C) American Petroleum Institute Publica-
tion 1632,  "Cathodic Protection of Under-
ground Petroleum Storage Tanks and Piping
Systems"; and
 (D) National Association  of Corrosion En-
gineers Standard BP-01-69, "Control of Ex-
ternal Corrosion on Submerged Metallic Pip-
ing Systems."
  (3) The piping is constructed of metal
without  additional corrosion  protec-
tion measures provided that:
  (i) The piping  is installed at a site
that is determined by a corrosion ex-
pert to  not be  corrosive  enough to
cause it to have a release due to corro-
sion during its operating life; and
  (ii)  Owners and  operators maintain
records that demonstrate  compliance
with  the requirements of paragraph
(b)(3)(i) of this section for the remain-
ing life of the piping; or
 NOTE: National Fire Protection Assocla-
tlon Standard 30, "Flammable and Combus-
tible Liquids Code"; and National Associa-
tion of Corrosion Engineers Standard BP-01-
69, "Control of External Corrosion on Sub-
merged Metallic Piping Systems," may be
used to comply with paragraph (b)(3) of this
section.
  (4) The piping  construction and cor-
rosion protection  are  determined by
the implementing agency  to  be  de-
signed to prevent the release or threat-
ened  release of  any stored  regulated
substance in a manner  that is no less
protective of human health and the en-
vironment than the requirements. in
paragraphs  (b) (1) through (3) of this
section.
  (c) Spill and  overfill prevention equip-
ment. (1) Except as provided in para-
graph  (c)(2) of this section, to prevent
spilling and overfilling associated with
product  transfer to the UST system,
owners and operators must use the fol-
lowing spill and  overfill  prevention
equipment:
  (i) Spill prevention equipment that
will prevent release of product to  the
environment when the transfer hose is
detached from the fill pipe (for exam-
ple, a spill catchment basin); and
Environmental Protection Agency

  (ii)  Overfill  prevention  equipment
that will:
  (A) Automatically shut  off flow into
the tank when the tank  is no more
than 95 percent full; or
  (B) Alert the transfer operator when
the tank is  no more than 90  percent
full  by restricting the flow into  the
tank or triggering a high-level alarm;
or
  (C) Restrict flow 30 minutes prior to
overfilling, alert  the operator with a
high  level alarm one  minute before
overfilling, or automatically shut  off
flow into the tank so that none of the
fittings located on top of the tank are
exposed to product due to overfilling-.
  (2) Owners and  operators are not re-
quired to use the  spill and overfill pre-
vention  equipment specified in para-
graph (cXl) of this section if:
  (i)  Alternative   equipment is  used
that is determined by the implement-
ing agency to be  no less  protective of
human health and the  environment
than the equipment specified in pant-
graph (cXl) (i) or  (ii) of this section; or
  (11)  The UST  system  is filled  by
transfers of no more than 25 gallons at
one time.
  (d) Installation.  All  tanks and piping
must be  properly installed in accord-
ance with a  code  of practice developed
by a nationally recognized association
or independent testing  laboratory and
in accordance with the  manufacturer's
instructions.
  NOTE: Tank and piping system Installation
practices and procedures described in the fol-
lowing codes may be used to comply with the
requirements of paragraph (d) of this section:
  (1) American Petroleum Institute Publica-
tion 1616,  "Installation of Underground Pe-
troleum Storage System"; or
  (11) Petroleum Equipment Institute Publi-
cation BP100, "Recommended Practices for
Installation of Underground Liquid Storage
Systems"; or
  (ill) American National  Standards Insti-
tute Standard B31.3, "Petroleum  Refinery
Piping," and American  National Standards
Institute Standard B31.4 "Liquid Petroleum
Transportation Piping System."
  (e)  Certification of installation.  All
owners and operators must ensure that
one  or more of the following methods
of certification, testing, or inspection
is  used  .to   demonstrate, compliance
with paragraph (d) of this section by
providing a certification of compliance
                             §280.21

on  the UST notification  form in ac-
cordance with §280.22.
  (1) The installer has been certified by
the tank and piping manufacturers; or
  (2) The installer has been certified or
licensed by the implementing agency;
or
  (3)  The  installation  'lias  been  in-
spected and certified by  a registered
professional  engineer with education
and experience in UST system installa-
tion; or
  (4)  The  installation  has  been  In-
spected and approved  by the imple-
menting agency;or
  (5) All work listed in the manufactur-
er's installation  checklists  has  been  .
completed; or
  (6) The owner and operator have com-
plied with another method for ensuring
compliance with paragraph  (d) of this
section that is determined by the  im-
plementing agency to be no less protec-
tive of human health and the environ-
ment.             •&
[63 FB 37194, Sept. 23,1988, as amended at 66
FR 38344, Aug. 13,1991]

§280.21 Upgrading  of  existing  UST
    systems*
  (a) Alternatives  allowed.  Not  later
than December  22, 1998,  all existing
UST systems must comply with one of   |
the following requirements:              "'
  (1) New  UST system  performance
standards under §280.20;
  (2) The  upgrading requirements in
paragraphs (b) through (d) of this sec-
tion; or
  (3) Closure requirements under sub-
part O of this part, including applica-
ble requirements for corrective action
under subpart P.
  (b) Tank upgrading requirements.  Steel
tanks must be upgraded to meet one of
the following requirements in accord-
ance with a code of practice developed
by a nationally recognized association
or independent testing laboratory:
  (1) Interior lining. A tank may be  up-
graded by internal lining if:
  (i) The  lining is installed in accord-
ance with the requirements of §280.33,
and
  (ii) Within 10 years after lining,  and
every 5 years thereafter, the lined tank
is internally inspected and found to be
structurally sound with the lining still
                                     984
                                                                                                                                 985

-------
§28022
          40 CFR Ch. I (7-1-96 EcWon)
performing in accordance with original
design specifications,
  (2) Cathodic protection. A tank may be
upgraded by cathodlo protection if the
cathodio protection system meets the
requirements of §280.2Q
-------
§280.32
          40 CFR Ch. I (7-1-96 Edition)
  (2)  Inspection  criteria. The criteria
Chat are used to determine  that ca-
thodlo protection is adequate  as re-
quired by this section must be in ac-
cordance with a code of practice devel-
oped by a nationally recognized asso-
ciation.
  NOTE: National Association of Corrosion
Engineers Standard RP-02-56,  "Control of
External Corrosion on Metallic Burled, Par-
tially Burled, or Submerged Liquid Storage
Systems," may be used to comply with para-
graph (bK2) of this section.
  (c) UST systems with Impressed cur-
rent cathodlc protection systems must
also be Inspected every 60 days to en-
sure the equipment is running prop-
erly.
  (d) For UST systems using cathodlc
protection, records of the operation of
the cathodlo protection must be main-
tained (In accordance  with §280.34) to
demonstrate compliance with the per-
formance  standards In this section.
These records must provide the follow-
ing:
  (1) The results of the last three in-
spections required in paragraph (c) of
this section; and
  (2) The results of testing from  the
last two Inspections required in para-
graph (b) of this section.

$280.32 Compatibility.
  Owners and operators must use  an
UST system made of or lined with ma-
terials that are  compatible with  the
substance stored in the UST system.
  NOTE: Owners and operators storing alco-
hol blends may use the following codes to
comply with  the requirements of this sec-
tion:
  (a) American Petroleum Institute Publica-
tion 1628, "Storing and Handling Ethanol and
GasoUne-Ethanol Blends at Distribution Ter-
minals and Service Stations"; and
  (b) American Petroleum Institute Publica-
tion 1627, "Storage and Handling of Gasoline-
Methanol/Cosolvent Blends at  Distribution
Terminals and Service Stations."

§280.33 Repairs allowed.
  Owners and operators of  UST sys-
tems must ensure that repairs will pre-
vent releases due to structural failure
or corrosion as long as the UST system
is used to store regulated substances.
The repairs must meet the following
requirements:
  (a) Repairs to UST systems must be
properly conducted in accordance with
a code of practice developed by a na-
tionally  recognized association  or  an
independent testing laboratory.

  NOTE: The following codes and standards
may be used to comply with paragraph (a) of
this section: National Fire Protection Asso-
ciation Standard 30, "Flammable and Com-
bustible Liquids Code"; American Petroleum
Institute Publication 2200, "Repairing Crude
Oil, Liquified Petroleum Gas, and Product
Pipelines"; American  Petroleum Institute
Publication  1631,  "Recommended  Practice
for the Interior Lining of Existing Steel Un-
derground Storage  Tanks"; and National
Leak Prevention Association Standard 631,
"Spill Prevention, Minimum 10 Year Life Ex-
tension of Existing Steel Underground Tanks
by Lining Without the Addition  of Cathodlo
Protection."

  (b)  Repairs to  fiberglass-reinforced
plastic tanks may be made by the man-
ufacturer's authorized representatives
or in accordance with a code of prac-
tice developed by a nationally recog-
nized association or  an independent
testing laboratory.
  (c)  Metal pipe  sections and fittings
that have released product as a  result
of corrosion or other  damage must be
replaced. Fiberglass pipes and fittings
may be repaired in accordance with the
manufacturer's specifications.
  (d)  Repaired tanks and piping must
be tightness tested in accordance with
§280.43(c) and §280.44(b) within 30 days
following the date of the completion of
the repair  except as provided in para-
graphs (d)  (1) through (3), of this sec-
tion:
  (1) The repaired tank is Internally  in-
spected in accordance with  a code of
practice developed by a nationally rec-
ognized association or an independent
testing laboratory; or
  (2) The repaired portion of the UST
system  is  monitored  monthly for  re-
leases in accordance  with  a method
specified In §280.43 (d) through (h); or
  (3) Another test method is used that
is determined by the  implementing
agency  to be no less  protective  of
human  health and the  environment
than those listed above.
  (e) Within 6 months  following the re-
pair of any cathodically protected UST
system, the cathodlc protection system
must be  tested  in  accordance  with
                                    988
                                                                                           Environmental Protection Agency
                                                                                                                         §280-40
§280.31 (b) and (c) to ensure that it is
operating properly.
  (f) UST system owners and operators
must maintain records of each repair
for the remaining operating life of the
UST system that demonstrate compli-
ance with the requirements of this sec-
tion.

§ 280.34  Reporting and recordkeeplng.
  Owners and  operators  of UST sys-
tems must cooperate fully with inspec-
tions,  monitoring  and  testing con-
ducted by the implementing agency, as
well as requests for document submis-
sion,  testing, and monitoring  by the
owner or operator pursuant to  section
9005 of Subtitle I of the Resource Con-
servation and Recovery Act, as amend-
ed.
  (a) Reporting. Owners and operators
must submit the following information
to the Implementing agency:
  (1) Notification for all  UST systems
(§280.22),  which includes certification
of Installation for  new UST systems
(§280.20(e)),
  (2) Reports of all  releases including
suspected releases (§280.50), spills and
overfills (§280.63), and confirmed  re-
leases (§280.61);
  (3)  Corrective  actions planned  or
taken   including  initial  abatement
measures (§280.62), initial site charac-
terization (§280.63), free product  re-
moval (§280.64),  Investigation  of soil
and ground-water cleanup (§280.65), and
corrective action .plan (§280.66); and
  (4) A notification before permanent
closure or change-in-service (§280.71).
  (b) Recordkeeping.  Owners and opera-
tors must maintain the following infor-
mation:
  (1) A corrosion expert's  analysis  of
site corrosion potential if corrosion
protection  equipment  is   not  used
(§280.2
-------
§280X1
         40 CFR Ch. I (7-1-96 EdUon)
ntfnOQ
ArtaMteTrt
Owotnj.
AutocMfcUn
UtkMo
ton.
UwTlgf****
TMtng.
8«*on
290X3 fd)
2SOX4M
280/MW
Pm^>r»MdiTOPte
Dtconttw 22.1990.
Sop4imb«r22,1991.
D*c«-
(iv) of this section to be readily deter-
mined.

§280.42 Requirements  for hazardous
   substance UST systems.
  Owners  and operators of hazardous
substance UST  systems must provide
release detection that  meets the fol-
lowing requirements:
  (a) Release detection at existing UST
systems must meet the requirements
for petroleum UST systems in §280.41.
By December 22, 1998, all existing haz-
ardous substance  UST systems must
meet the release  detection require-
ments for new systems in paragraph (b)
of this section.
  (b) Release detection at new hazard-
ous substance UST systems must meet
the following requirements:
  (1)  Secondary containment systems
must be designed, constructed and in-
stalled to:
  (1) Contain regulated substances re-
leased from the tank system until they
are detected and removed;
  (11) Prevent the release of regulated
substances to the environment at any
time during the operational life of the
UST system; and
  (ill) Be  checked for evidence of a re-
lease at least every 30 days.
  NOTE.—The provisions of 40 CFR 265.193,
Containment and Detection of Releases, may
be used to  comply with these requirements.
  (2) Double-walled tanks must be de-
signed, constructed, and installed to:
  (i) Contain a release from any por-
tion of the Inner tank within the outer
wall; and
  (II) Detect the failure of  the inner
wall.
  (3) External liners (including vaults)
must be designed, constructed, and in-
stalled to:
  (i) Contain 100 percent of the capac-
ity  of the  largest  tank within its
boundary;
  (ii) Prevent the interference  of pre-
cipitation or ground-water  intrusion
with the ability to contain or detect a
release of regulated substances; and
  (ill) Surround the tank completely
(i.e., it is capable of preventing lateral
as well  as vertical migration of regu-
lated substances).
  (4)  Underground  piping  must  be
equipped with secondary containment
that satisfies the requirements of para-
graph (b)(l) of this section (e.g., trench
liners, Jacketing of double-walled pipe).
In addition,  underground piping that
conveys  regulated substances  under
pressure must be  equipped  with  an
automatic line leak detector in accord-
ance with §280.44(a).
  (5) Other methods of release  detec-
tion may be used if owners and  opera-
tors:
  (i) Demonstrate to the implementing
agency  that  an alternate method can
detect a release of the stored substance
as effectively as any of the methods al-
lowed In §§280.43(b) through (h) can de-
tect a release of petroleum;
  (ii) Provide information to the imple-
menting agency on effective corrective
action technologies, health risks, and
chemical and physical properties of the
stored substance, and the characteris-
tics of the UST site; and,
  (ill) Obtain approval from the  imple-
menting agency to use the alternate
release detection method before the in-
stallation and operation of the  new
UST system.

§280.43   Methods  of release detection
    for tanks.
  Each method of release detection for
tanks used to meet the requirements of
§280.41 must be conducted In accord-
ance with the following:
  (a) Inventory control.  Product  inven-
tory control (or another test of equiva-
lent performance) must be  conducted
monthly to detect a release of at least
1.0 percent of flow-through plus 130 gal-
lons on a monthly basis in the follow-
ing manner:
  (1) Inventory  volume measurements
for regulated substance inputs, with-
drawals, and the amount still remain-
Ing in the tank are recorded each oper-
ating day;
  (2) The equipment used is capable of
measuring the level of product over the
full range of the tank's height  to  the
nearest  one-eighth of an inch;
  (3) The regulated substance inputs
are reconciled with delivery receipts by
                                                                                                                            991

-------
 §280.43
           40 CFR Ch. I (7-1-96 Edition)
 measurement  of  the tank  Inventory
 volume before and after delivery;
   (4) Deliveries are  made through  a
 drop tube that extends  to within one
 foot of the tank bottom;
   (5) Product dispensing is metered and
 recorded within the local standards for
 meter calibration or an accuracy of 6
 cubic Inches for every 5 gallons of prod-
 uct withdrawn; and
   (6) The measurement  of any  water
 level in the bottom of the tank is made
 to the nearest one-eighth of an inch at
 least once a month.

  NOTK Practices described in the American
 Petroleum Institute Publication 1621, "Rec-
 ommended Practice  for Bulk Liquid Stock
 Control at-Retail Outlets," may  be used,
 where applicable, as guidance in meeting the
 requirements of this paragraph.
  (b) Manual  tank  gauging.  Manual
 tank gauging must meet the following
 requirements:
  (1) Tank  liquid  level measurements
 are taken at the beginning and ending
 of a period of at least 36 hours during
 which no liquid is added to or removed
 from the tank;
  (2) Level measurements are based on
 an average of two  consecutive  stick
 readings at both the beginning and
 ending of the period;
  (3) The equipment used is capable of
 measuring the level of product over the
 full  range of the tank's  height to  the
 nearest one-eighth of an inch;
  (4) A leak is suspected and subject to
 the  requirements  of  subpart E if  the
 variation between beginning and end-
 ing measurements exceeds the weekly
 or monthly standards in the following
 table:
Hnmfcial
nOnnml
tai* capac-
ity
6SO gallon*
or less.
551-1,000
gallons.
1,001-
2,000
QflBons.
Weekly standard (one
tost)
10 gallons 	
13 gallons 	

Monthly standard (av-
eraga odour tests)
5 gallons.
7 gallons. •

  (S) Only tanks of 550 gallons or less
nominal capacity may use this as the
sole  method   of  release  detection.
Tanks of 651 to 2,000 gallons may use
the method in place of manual inven-
tory  control in §280.43(a).  Tanks of
greater than 2,000 gallons nominal oa-
• pacity may  not use this method to
 meet the requirements of this subpart.
   (c) Tank tightness testing. Tank tight-
 ness testing (or another test of equiva-
 lent performance) must  be capable of
 detecting  a 0.1  gallon per hour leak
 rate from any portion of the tank that
 routinely  contains product while ac-
 counting for the effects of thermal ex-
 pansion or contraction of the product,
 vapor pockets, tank deformation, evap-
 oration or condensation, and the loca-
 tion of the water table.
   (d) Automatic  tank gauging. Equip-
 ment for automatic tank gauging that
 tests for the loss of product and con-
 ducts inventory control must meet the
 following requirements:
   (1) The automatic product level mon-
 itor test can  detect a  0.2'gallon per
 hour leak rate from any portion of the
 tank that routinely contains  product;
 and
   (2) Inventory control (or another test
 of  equivalent  performance)  is  con-
 ducted in accordance with the require-
 ments of §280.43(a).
   (e) Vapor monitoring. Testing or mon-
 itoring for vapors within the soil gas of
 the excavation zone must meet the fol-
 lowing requirements:
   (1) The materials used as backfill are
 sufficiently porous  (e.g.,  gravel, sand,
 crushed rock) to readily allow diffusion
 of vapors from releases into the exca-
 vation area;'
   (2) The stored regulated substance, or
 a tracer compound  placed in  the tank
 system, is  sufficiently  volatile (e.g.,
 gasoline) to result in a vapor level that
 is detectable by the monitoring devices
 located in the excavation zone in the
 event of a release from the tank;
   (3) The measurement of vapors by the
 monitoring device is not rendered inop-
 erative by the ground water, rainfall,
 or soil moisture or other known Inter-
 ferences so that a release could go un-
 detected for more than 30 days;
  (4) The level of background contami-
 nation in the  excavation  zone will not
 interfere with the method used to de-
 tect releases from the tank;
  (5) The vapor monitors are  designed
 and operated to detect any significant
increase In concentration above back-
ground  of  the  regulated substance
stored in the tank  system, a compo-
nent or components of that substance,
                                   992
Environmental Protection Agency

or a  tracer  compound placed in  the
tank system;
  (6) In the UST excavation zone,  the
site Is assessed to ensure compliance
with  the requirements in paragraphs
(e) (1) through (4) of this section and to
establish the number and positioning
of monitoring wells that will detect re-
leases within the excavation zone from
any portion of the tank that routinely
contains product; and
  (7)  Monitoring  wells  are  clearly
marked and secured to avoid unauthor-
ized access and tampering.
  (f) Ground-water  monitoring.  Testing
or monitoring for liquids on the ground
water must meet the following require-
ments:
  (1) The regulated substance stored is
immiscible in water and has a specific
gravity of less than one;
  (2) Ground water is never more than
20 feet from the ground surface and the
hydraulic conductivity  of  the soil(s)
between the  UST system and the mon-
itoring wells or devices is not less than
0.01 cm/seo (e.g., the soil should consist
of gravels,  coarse to  medium sands,
coarse silts  or other permeable mate-
rials);
  (3)  The slotted portion of the mon-
itoring well casing must be designed to
prevent  migration of natural  soils or
filter pack into the well and to allow
entry of regulated substance on  the
water table  into the well under both
high  and. low ground-water conditions;
  (4)  Monitoring wells  shall be sealed
from the ground surface to  the top of
the filter pack;
  (5) Monitoring wells or devices inter-
cept the excavation zone or are as close
to it as is technically feasible;
  (6)  The continuous  monitoring  de-
vices or manual methods used can de-
tect the presence of at least one-eighth
of an inch of free product on top of the
ground water in the monitoring wells;
  (7) Within and immediately below the
UST  system excavation zone,  the  site
is assessed to ensure compliance with
the requirements in paragraphs (f) (1)
through (5) of this section and to estab-
lish  the number  and positioning of
monitoring wells or  devices that  will
detect releases from any portion of the
tank that routinely contains product;
and
                             §280.43

  (8)  Monitoring  wells  are  clearly
marked and secured to avoid unauthor-
ized access and tampering.
  (g) Interstitial monitoring. Interstitial
monitoring between the UST system
and a secondary barrier immediately
around or beneath it may be used, bat
only if the system is designed, con-
structed and Installed  to detect a leak
from any portion of the tank that rou-
tinely contains product and also meets
one of the following requirements:
  (1) For  double-walled UST  systems,
the sampling or testing method can de-
tect a release through the inner wall in
any portion of the tank that routinely
contains product;

  NOTE: The provisions outlined In the Steel
Tank Institute's "Standard for Dual Wall
Underground Storage Tanks" may be used as
guidance for aspects of the design and con-
struction of underground steel  double-walled
tanks.

  (2) For UST systems, with a second-
ary barrier within the  excavation zone,
the sampling  or testing method used
can detect a release between the UST
system and the secondary barrier;
  (i) The  secondary barrier around or
beneath the UST system consists of ar-
tificially  constructed  material that Is
sufficiently thick and  impermeable (at
least 10~« cm/seo for the regulated sub-
stance stored) to direct a release to the
monitoring point and permit its detec-
tion;
  (ii) The barrier is compatible with
the regulated substance stored so that
a release from the UST system will not
cause a deterioration of the barrier al-
lowing a release to pass through unde-
tected;
  (ill)   For  cathodically  protected
tanks, the secondary  barrier must be
installed  so that it does not interfere
with  the  proper operation of the ca-
thodic protection system;
  (iv) The ground water, soil moisture,
or rainfall will not render the testing
or sampling method used inoperative
so that a  release  could go undetected
for more than 30 days;
  (v) The site is assessed to ensure that
the secondary barrier is always above
the ground water and not  in  a 25-year
flood plain, unless the  barrier and mon-
itoring designs are for use under such
conditions; and,
                                                                                                                             993

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                                                                               T"
§280.44

  (vl)  Monitoring  wells  are  clearly
marked and secured to avoid unauthor-
ized access and tampering.
  (3)  For  tanks with  an  internally
fitted  liner, an  automated device can
detect a release between the inner wall
of the  tank and the liner, and the liner
IB  compatible  with  the  substance
stored.
  (h) Other methods. Any other  type of
release detection method, or combina-
tion of methods, can be used If:
  (1) It can detect a 0.2 gallon per hour
leak rate or a  release  of 160  gallons
within a month with a probability of
detection of 0.96 and a probability of
false alarm of 0.05; or
  (2) The Implementing agency may ap-
prove another method if the owner and
operator  can demonstrate that  the
method can detect a release as effec-
tively as any of the methods allowed in
paragraphs (o) through (h) of this sec-
tion. In comparing methods, the imple-
menting agency shall consider the size
of release that the method can detect
and the frequency and reliability with
which It can be detected. If the method
is approved, the owner and operator
must comply with any conditions im-
posed by the Implementing agency on
its use to  ensure  the  protection of
human health and the environment.

$280.44 Methods of release detection
    for piping.
  Each method of release detection for
piping used to meet the requirements
of §280.41 must be conducted in accord-
ance with the following:
  (a) Automatic line leak detectors. Meth-
ods which alert  the  operator  to the
presence of a leak by  restricting or
shutting off the  flow of regulated sub-
stances through piping or triggering an
audible or visual alarm may be  used
only if they detect leaks  of 3 gallons
per hour at 10 pounds per square inch
line pressure within 1 hour. An  annual
test of the operation of the leak detec-
tor must be conducted  in accordance
with the manufacturer's requirements.
  (b) Line tightness  testing. A periodic
test of piping may be conducted only if
it can detect a 0.1 gallon per hour leak
rate at one and one-half times the op-
erating pressure.
  (o) Applicable tank methods. Any of
Hie methods in §280.43 (e) through (h)
          40 CFR Ch. I <7-l-*6 EcWon)

may bo used If they are designed to de-
tect a release from any portion of the
underground piping that routinely con-
tains regulated substances.

{280.45  Release    detection   record-
    keeping.
  All UST system owners and operators
must maintain records in accordance
with §280.34 demonstrating compliance
with all applicable requirements of this
subpart. These records must Include
the following:
  (a)  All written  performance claims
pertaining to any release detection sys-
tem used, and the manner In  which
these  claims  have  been justified or
tested by the equipment manufacturer
or installer, must be maintained for 6
years, or for another reasonable period
of time determined by the implement-
ing agency, from the date of installa-
tion;
  (b) The results of any sampling, test-
Ing, or monitoring must be maintained
for at least 1 year, or for another rea-
sonable period of time determined by
the Implementing agency, except that
the results of tank tightness  testing
conducted in accordance with §280.43(c)
must be retained until the next test is
conducted; and
  (o) Written documentation of all cali-
bration, maintenance, and repair of re-
lease detection equipment permanently
located on-site must be maintained for
at least one year after the servicing
work is completed, or for another rea-
sonable time period determined by the
implementing agency. Any schedules of
required calibration and  maintenance
provided  by  the  release  detection
equipment manufacturer  must be  re-
tained for 5 years from the date of in-
stallation.

  Subpart E—Release Reporting,
  Investigation, and Confirmation

} 280.50  Reporting  of  suspected   re-
   leases.
  Owners and operators of UST  sys-
tems must report to the Implementing
agency within 24 hours, or another rea-
sonable time period specified by  the
implementing  agency, and follow  the
procedures in §280.52 for any of the fol-
lowing conditions:
Environmental Protection Agency

  (a) The discovery by owners and oper-
ators or others of released regulated
substances at the UST site or in the
surrounding area (such as the presence
of free product or vapors In soils, base-
ments,  sewer and  utility lines,  and
nearby surface water).
  (b) Unusual operating conditions ob-
served by owners and operators (such
as the erratic behavior of product dis-
pensing equipment, the sudden loss of
product from the UST system, or an
unexplained presence of water in the
tank),  unless  system  equipment is
found to be defective but not leaking,
and  is immediately repaired or re-
placed; and,
  (c) Monitoring results from a release
detection  method   required   under
§280.41 and §280.42 that indicate a re-
lease may have occurred unless:
  (1) The monitoring device is found to
be defective,  and is Immediately re-
paired,  recalibrated or replaced,  and
additional monitoring does not confirm
the initial result; or
  (2) In the case of inventory control, a
second month of data does not confirm
the initial result.

§280.51  Investigation  due to off-site
   impacts.
  .When required  by the implementing
agency, owners and operators  of UST
systems must follow the procedures in
§280.62 to determine if the UST system
Is the source of off-site impacts. These
Impacts include the discovery of regu-
lated substances  (such as the presence
of free product or vapors in soils, base-
ments,  sewer and utility lines,  and
nearby surface  and drinking  waters)
that has been observed by the imple-
menting agency  or brought to its at-
tention by another party.

§280.52  Release investigation and con-
   firmation steps.
  Unless corrective action is initiated
in accordance with subpart F, owners
and operators must immediately inves-
tigate and  confirm all  suspected re-
leases of regulated substances requir-
ing  reporting under §280.50  within 7
days, or another reasonable time pe-
riod  specified by  the  implementing
agency,  using  either  the  following
steps or another procedure approved by
the implementing agency:
                            §280.53

  (a) System test. Owners and operators
must conduct testa (according to the
requirements for tightness  testing in
5280.43(0) and §280.44(b)) that determine
whether a leak exists In that portion of
the tank that routinely contains prod-
uct, or the attached delivery piping, or
both.
  (1) Owners and operators must repair,
replace  or upgrade the UST  system,
and begin corrective action in accord-
ance with subpart F If the test results
for the system, tank, or delivery piping
indicate that a leak exists.
  (2) Further  investigation  is not  re-
quired if the test results for the sys-
tem, tank, and delivery piping do not
Indicate that a leak exists and if envi-
ronmental contamination  Is not  the
basis for suspecting a release.
  (3) Owners and operators  must con-
duct a site check as described in para-
graph (b) of this section if the test  re-
sults for the system, tank, and delivery
piping do not indicate that a leak ex-
ists but environmental contamination
is the basis for suspecting a release.
  (b) Site check.  Owners and operators
must measure for the presence of a re-
lease where  contamination is most
likely to be present at the UST site. In
selecting  sample types,  sample loca-
tions, and measurement methods, own-
ers and operators must consider the na-
ture of the stored substance, the type
of Initial alarm or cause for suspicion,
the type  of  backfill,  the depth  of
ground  water, and other factors appro-
priate for identifying the presence and
source of the release.
  (1) If the test  results for the exca-
vation  zone or the UST site indicate
that a release has occurred, owners and
operators must begin corrective action
In accordance with subpart F;
  (2) If the test  results for the exca-
vation zone or the UST site do not In-
dicate that a release has occurred, fur-
ther Investigation is not required.

8 280.53 Reporting   and  cleanup  of
    spills and overfills.
  (a) Owners and operators of UST sys-
tems must contain and  immediately
clean up a spill or overfill and report to
the implementing  agency  within  24
hours, or another reasonable time pe-
riod  specified by  the implementing
agency, and begin corrective action in
                                   994
                                                                                                                            995

-------
 §280.60

 accordance with subpart F in the fol-
 lowing cases:
   (1) Spill or overflll of petroleum that
 results in a release to the environment
 that exceeds 25 gallons or another rea-
 sonable amount specified by the imple-
 menting agency, or that causes a sheen
 on nearby surface water; and
   (2) Spill or  overfill of a hazardous
 substance that results in a release  to
 the environment that equals or exceeds
 its reportable quantity under  CERCLA
 (40 CFR part 302).
   (b) Owners and operators of UST sys-
 tems must  contain and immediately
 clean up a spill or overfill of petroleum
 that is less than 25 gallons or another
 reasonable amount specified by the im-
 plementing agency, and a spill or over-
 fill  of a  hazardous  substance that  is
 less than the  reportable quantity.  If
 cleanup cannot be accomplished within
 24 hours, or another reasonable time
 period established by the implementing
 agency, owners and operators must im-
 mediately notify  the  implementing
 agency.

  NOTE Pursuant to 55302.6 and 355.40, a re-
 leas* of & hazardous substance equal to or in
 excess of Its reportable quantity must also
 be reported immediately (rather than within
 24 hours) to the National Response Center
 under sections 102 and 103 of the Comprehen-
 sive Environmental  Response, Compensa-
 tion, and Liability Act of 1980 and to appro-
 priate state and local authorities under Title
 m of the Snperfund Amendments and Reau-
 thorlzatlon Act of 1986.

 Subpart F-Release Response and
     Corrective Action for UST Sys-
     tems Containing Petroleum or
     Hazardous Substances

 $280.60 General
  Owners and operators of petroleum or
 hazardous  substance  UST   systems
 must, in response  to a confirmed re-
 lease from the UST system,  comply
 with the requirements  of this  subpart
 except  for  USTs  excluded  under
 §280.10(b) and UST systems subject to
 BORA Subtitle  0 corrective action re-
quirements under section 3004(u) of the
Resource  Conservation and Recovery
Act, as amended.
           40 CFR Ch. I (7-l-*6 Edttton)

 {280.61 Initial response.
   Upon confirmation of a release in ac-
 cordance with §280.52 or after a release
 from the  UST system is Identified in
 any other manner, owners and opera-
 tors must perform the following initial
 response actions  within 24 hours of a
 release or within another reasonable
 period  of  time determined by the im-
 plementing agency:
   (a) Report the release to the imple-
 menting agency  (e.g., by telephone or
 electronic mail);
   (b) Take immediate action to prevent
 any further release of the regulated
 substance into the environment; and
   (c) Identify and mitigate fire, explo-
 sion, and vapor hazards.

 $280.62 Initial  abatement  measures
    and site check.
   (a) Unless directed to do otherwise by
 the implementing agency, owners and
 operators  must perform the following
 abatement measures:
   (1) Remove as much of the regulated
 substance  from the UST system as is
 necessary  to prevent further release to
 the environment;
   (2) Visually inspect any aboveground
 releases or exposed belowground  re-
 leases and prevent further migration of
 the released substance into surround-
 ing soils and ground water;
   (3) Continue to  monitor and mitigate
 any additional fire and safety-hazards
 posed by vapors  or free product that
 have  migrated from  the  UST  exca-
 vation  zone  and  entered' Into  sub-
 surface structures (such as sewers or
 basements);
  (4) Remedy  hazards  posed  by con-
 taminated soils that are excavated or
 exposed as a result of release confirma-
 tion, site investigation, abatement, or
 corrective  action activities. If these
 remedies include treatment or disposal
 of soils, the owner and operator must
 comply with applicable State and local
 requirements;
  (5) Measure for the presence of a re-
 lease  where  contamination is most
 likely to be present at the UST site,
 unless the presence  and source of the
release  have been confirmed in accord-
ance with  the  site check required  by
§280.52(b)  or  the   closure site  assess-
ment of §280.72(a). In selecting  sample
                                   996
Environmental Protection Agency
                             §280.64
types, sample locations, and measure-
ment methods, the owner and operator
must consider the nature of the stored
substance, the type of backfill, depth
to -ground water and other factors as
appropriate for identifying  the pres-
ence and source of the release; and
  (6) Investigate to determine the pos-
sible  presence of free product,  and
begin free product removal as soon as
practicable and  in accordance with
§280.64.
  (b) Within 20 days after release  con-
firmation, or within another reason-
able period of time determined by the
Implementing agency, owners and oper-
ators must submit a report to the im-
plementing agency  summarizing  the
initial abatement steps  taken under
paragraph (a) of this section and any
resulting information or data.

$280.63  Initial site characterization.
  (a) Unless directed to do otherwise by
the implementing agency, owners and
operators must assemble information
about the site and the nature of the re-
lease,  including  information gained
while confirming  the release or com-
pleting the initial abatement measures
in §§280.60 and 280.61. This information
must include,  but is  not necessarily
limited to the following:
  (1) Data on the nature and estimated
quantity of release;
  (2) Data from available sources   and/
or site investigations  concerning  the
following  factors:  surrounding popu-
lations, water quality, use and approxi-
mate locations of wells potentially af-
fected by  the release,  subsurface soil
conditions, locations of subsurface sew-
ers, climatologlcal conditions, and land
use;
  (3) Results of the site check required
under §280.62(a)(5); and
  (4) Results of the free product inves-
tigations required under §280.62(a)(6),
to be used by owners and operators to
.determine whether free product must
be recovered under §280.64.
  (b)  Within 45 days  of release  con-
firmation or another reasonable period
of time determined by the implement-
ing agency, owners and operators must
submit the information  collected  in
compliance with paragraph (a) of this
section to the Implementing agency in
a manner that demonstrates its appli-
cability and technical adequacy, or in a
format and according to the schedule
required by the implementing agency.

$280.64 Free product removal.

  At sites where investigations under
§280.62(a)(6) indicate the presence of
free product,  owners  and  operators
must remove free product to the maxi-
mum extent practicable as determined
by the implementing agency while con-
tinuing, as necessary,  any actions Ini-
tiated under §§280.61 through 280.63, or
preparing for actions required under
§§280.65 through 280.66. In meeting the
requirements  of  this  section,  owners
and operators must:
  (a) Conduct free product removal in a
manner that minimizes the  spread of
contamination    into     previously
uncontaminated zones by using recov-
ery  and  disposal  techniques  appro-
priate to  the hydrogeologic conditions
at the site, and that  properly treats,
discharges or disposes of recovery by-
products in compliance with applicable
local, State and Federal regulations;
  (b) Use abatement of free product mi-
gration as a minimum objective for the
design of the free product removal sys-
tem;        •        ;-
  (c) Handle any flammable products in
a safe and competent manner  to pre-
vent fires or explosions; and
  (d) Unless directed to do otherwise by
the implementing agency, prepare and
submit  to the implementing agency,
within 45 days after confirming  a re-
lease, a free  product removal report
that provides at least the following in-
formation:
  (1) The name of the peraon(s)  respon-
sible for implementing the free product
removal measures;
  (2) The estimated quantity, type, and
thickness of free product observed or
measured in wells, boreholes, and exca-
vations;
  (3) The type of free product recovery
system used;
  (4) Whether any discharge  will take
place on-site or off-site during  the re-
covery operation and  where this dis-
charge will be located;
  (5) The type of treatment applied to,
and the effluent quality expected from,
any discharge;
                                                                                                                            997

-------
§280.65
         40 CFR Ch. I (7-1-96 EoWon)
  (6) Thfl steps that have been or are
being taken to obtain necessary per-
mits tor any discharge; and
  (7) The disposition of the recovered
free product.

5280.65  Investigations   for  soil  and
   ground-water cleanup.
  (a) In order to determine the Ml ex-
tent and location of soils contaminated
by the release and the  presence and
concentrations  of dissolved  product
contamination  in  the  ground water,
owners and operators must conduct In-
vestigations of the release, the release
site, and the surrounding area possibly
affected by the release if any of the fol-
lowing conditions exist:
  (1) There  is  evidence  that  ground-
water wells have been affected by the
release (e.g., as found during release
confirmation or previous corrective ac-
tion measures);
  (2) Free product is found to need re-
covery in compliance with §280.64;
  (3) There is evidence  that contami-
nated soils  may  be  in  contact  with
ground water (e.g.,  as found during
conduct of the initial response meas-
ures or Investigations  required under
§5280.60 through 280.64); and
  (4)  The  implementing agency re-
quests an investigation,  based on the
potential effects of contaminated soil
or ground water  on nearby  surface
water and ground-water resources.
  (b) Owners and operators  must sub-
mit  the  information  collected under
paragraph (a) of this section as soon as
practicable or  in  accordance  with  a
schedule established by the implement-
ing agency.

$280.66  Corrective action plan.
  (a) At any point after reviewing the
information submitted in compliance
with §§280.61 through 280.63,  the imple-
menting  agency may require owners
and operators to submit additional in-
formation or to develop and submit a
corrective action plan for responding
to  contaminated  soils  and  ground
water. If a plan is required, owners and
operators must submit the plan accord-
ing to a schedule and  format estab-
lished by the implementing agency. Al-
ternatively, owners and operators may,
after fulfilling  the  requirements  of
§§280.61 through 280.63, choose to sub-
mit  a corrective action, plan for re-
sponding  to contaminated  soil and
ground water. In either case, owners
and  operators are responsible for sub-
mitting a plan that provides for ade-
quate protection of human health and
the environment as determined by the
implementing agency, and must mod-
ify their plan as necessary to meet this
standard.
  (b) The implementing agency will ap-
prove the corrective action plan only
after ensuring that implementation of
the plan will adequately protect human
health, safety, and the environment. In
making this determination, the imple-
menting  agency should consider the
following factors as appropriate:
  (1) The physical and chemical charac-
teristics of the regulated substance, in-
cluding its toxiclty, persistence, and
potential for migration;
  (2) The hydrogeologlo  characteristics
of the facility  and the  surrounding
area;
  (3) The proximity, quality, and cur-
rent and future uses of  nearby surface
water and ground water;
  (4) The potential effects of residual
contamination on nearby surface water
and ground water;
  (5) An exposure assessment; and
  (6)  Any  information  assembled  in
compliance with this subpart.
  (c) Upon approval of-the corrective
action plan or as directed by the imple-
menting agency, owners and  operators
must implement the plan,  including
modifications to the plan made by the
implementing agency. They must mon-
itor, evaluate, and report the results of
implementing the plan  in accordance
with a schedule and in a format estab-
lished by the implementing agency.
  (d) Owners and operators may, in the
Interest of minimizing  environmental
contamination and promoting more ef-
fective cleanup, begin cleanup of soil
and  ground water before the corrective
action plan is approved provided that
they:
  (1) Notify the implementing agency
of their intention to begin cleanup;
  (2) Comply with any  conditions im-
posed by the implementing agency, in-
cluding halting cleanup or mitigating
adverse consequences from cleanup ac-
tivities; and
                                   998
Environmental Protection Agency

  (3) Incorporate  these self-Initiated
cleanup measures in the corrective ac-
tion plan that is submitted to the im-
plementing: agency for approval.

{280.67 Public participation.
  (a) For each confirmed release that
requires  a corrective action  plan, the
implementing agency must provide no-
tice to the public by means designed to
reach those members of the public di-
rectly  affected by the  release and the
planned corrective action. This notice
may include, but is not limited to, pub-
lic  notice in local newspapers,  block
advertisements,  public  service  an-
nouncements,  publication  in a state
register,  letters to  individual house-
holds,  or personal contacts by  field
staff.
  (b) The implementing agency must
ensure that site release information
and decisions concerning the corrective
action plan  are made available to the
public for inspection upon request.
  (o) Before approving a corrective ac-
tion plan,  the  Implementing agency
may hold a public meeting to consider
comments on  the proposed corrective
action plan if there is sufficient public
interest, or for any other reason.
  (d) The implementing agency must
give public notice that complies with
paragraph (a) of this section if imple-
mentation  of  an approved corrective
action plan does not achieve the estab-
lished  cleanup  levels in the  plan and
termination of that plan is under con-
sideration by the implementing agen-
cy.

  Subpart G—Out-of-ServIce UST
       Systems and Closure

$280.70 Temporary closure.
  (a) When an  UST system is tempo-
rarily  closed,  owners  and  operators
must continue operation and mainte-
nance  of corrosion protection in ac-
cordance with §280.31, and any release
detection in accordance with subpart
D. Subparts E and F must be complied
with if a release is  suspected or con-
firmed. However, release  detection is
not required as long as the UST system
is empty. The  UST system  is empty
when all materials have been removed
using commonly employed practices so
that no more than 2.5 centimeters (one
                             §280.71

Inch) of residue, or  0.3 percent  by
weight of the total capacity of the UST
system, remain in the system.
  (b) When an  UST  system Is tempo-
rarily  closed for 3  months or more,
owners and operators must also comply
with the following requirements:
  (1) Leave vent  lines open and func-
tioning; and
  (2) Cap and  secure all other lines,
pumps, manways, and ancillary equip-
ment.
  (c) When an  UST  system is tempo-
rarily closed for more than 12 months,
owners  and  operators must  perma-
nently close the UST system if it does
not meet either performance standards
In §280.20 for new UST systems or the
upgrading requirements in §280.21, ex-
cept that the spill and overfill equip-
ment requirements do not have to be
met. Owners  and operators  must per-
manently close the  substandard UST
systems at the end of this 12-month pe-
riod in accordance with §§280.71-280.74,
unless  the  implementing  agency pro-
vides an  extension  of the 12-month
temporary closure period. Owners and
operators must complete a site assess-
ment in accordance with §280.72 before
such an extension can be applied for.

$280.71 Permanent    closure   and
    changes-In-service.
  (a) At least 30 days before beginning
either permanent closure or a change-
in-service under paragraphs (b) and (c)
of this section, or within another rea-
sonable time period determined by the
implementing agency, owners and oper-
ators must notify the implementing
agency of their intent to permanently
close or make the  change-in-service,
unless such action is in response to cor-
rective  action.  The  required  assess-
ment of the  excavation zone  under
§280.72 must be performed after notify-
ing the implementing agency but be-
fore completion of the permanent clo-
sure or a change-in-service.
  (b) To permanently close  a tank,
owners and operators must empty and
clean it by removing all liquids and ac-
cumulated sludges. All tanks taken out
of service permanently must also be ei-
ther removed from the ground  or filled
with an inert solid material.
  (c) Continued use of an UST system
to store  a  non-regulated substance Is
                                                                                                                           999

-------
§280.72

considered a change-ln-servlce. Before
a change-ln-servlce, owners and opera-
tors most empty and clean the tank by
removing all liquid and  accumulated
sludge and conduct a site assessment in
accordance with §280.72.

 Notrs: The following cleaning and closure
procedures may be used to comply with this
section:
 (A) American Petroleum Institute Rec-
ommended Practice 1604, "Removal and Dis-
posal of Used Underground Petroleum Stor-
age Tanks";
 (B) American Petroleum Institute Publica-
tion  2015, "Cleaning  Petroleum  Storage
Tanks";
 (C) American Petroleum Institute Rec-
ommended Practice 1631, "Interior Lining of
Underground Storage Tanks," may be used
as guidance for compliance with this section;
and
 (D) The National Institute for Occupa-
tional Safety and Health "Criteria for a Rec-
ommended Standard * * * Working in Con-
fined Space" may be used as guidance for
conducting safe closure procedures at some
hazardous substance tanks.

$280.72  Assessing the site at closure or
    change-In-service.
  (a)  Before permanent closure or a
change-In-service Is completed, owners
and operators  must measure for the
presence of a release where contamina-
tion la most likely to be present at the
UST  site. In selecting sample types,
sample  locations,  and  measurement
methods, owners and operators must
consider the method of closure, the na-
ture of the. stored substance, the type
of backfill, the depth to ground water,
and other factors appropriate for iden-
tifying the presence of a release. The
requirements of this section are satis-
fied If one of the external release detec-
tion methods allowed in §280.43 (e) and
(f) is operating in accordance with the
requirements In §280.43 at the time of
closure, and indicates no release has
occurred.
  (b) If contaminated soils, contami-
nated ground water, or free product as
a  liquid or vapor is discovered under
paragraph (a) of this section, or by any
other manner,  owners and  operators
must begin corrective action in accord-
ance with subpart P.
          40 CFR Ch. I (7-1-96 Edition)

 §280.73  Applicability   to  previously
    closed UST systems.
  When directed by the Implementing
 agency, the owner and operator of an
 UST system permanently closed before
 December 22,1988 must assess the exca-
 vation zone and close the UST system
 in accordance  with this subpart If re-
 leases from the UST may, In the judg-
 ment of the implementing agency, pose
 a current or potential threat to human
 health and the environment.

 §280.74  Closure records.
  Owners and operators must maintain
 records in accordance with §280.34 that
 are  capable  of demonstrating compli-
 ance with closure  requirements under
 this subpart. The results of the exca-
 vation  zone  assessment  required In
. §280.72 must be maintained for at least
 3 years after completion of permanent
 closure or change-in-service in one of
 the following ways:
  (a) By the owners and operators  who
 took the UST system out of service;
  (b) By the current owners and opera-
 tors of the UST system site; or
  (o) By  mailing these records to £he
 implementing agency If they cannot be
 maintained at the closed facility.

        Subpart H—Financial
            Responsibility

  SOURCE: 63 FR 43370, Oct. 26, 1988, unless
 otherwise noted.

 §280.90  Applicability.
  (a) This  subpart applies  to owners
 and operators of all petroleum under-
 ground storage tank (UST) systems ex-
 cept as otherwise provided In this sec-
 tion.
  (b) Owners and  operators  of petro-
 leum UST systems are subject to these
 requirements if they are in operation
 on or after the date for compliance es-
 tablished In §280.91. v
  (o) State and Federal government en-
 titles whose debts and liabilities are
 the debts and liabilities of a state or
 the United States are exempt from the
 requirements of this subpart.
  . (d) The requirements of this subpart
 do not apply to owners and operators of
 any UST system described in §280.10 (b)
 or (c).
                                    1000
 Environmental Protection Agency

   (e) If the owner and operator of a pe-
 troleum underground storage tank are
 separate persons, only one person is re-
 quired to  demonstrate financial  re-
 sponsibility; however, both parties are
 liable In event of noncompliance. Re-
 gardless of which  party complies,  the
 date set for compliance at a particular
 facility is determined by the character-
 istics of the  owner as set  forth  In
 §280.91.

 §280.91  Compliance dates.
   Owners  of petroleum underground1
 storage tanks are required to comply
 with the requirements of this subpart
 by the following dates:
   (a) All petroleum marketing  firms
 owning 1,000 or more  USTs and  all
 other UST owners  that report a tan-
 gible net worth of $20 million or more
 to the U.S. Securities and  Exchange
 Commission  (SEC), Dun  and Brad-
 street, the Energy Information Admin-
 istration, or the Eural Electrification
 Administration;  January 24, 1989,  ex-
 cept that compliance with §280.94(b) is
 required by: July 24,1989.
   (b) All petroleum marketing firms
 owning 100-S99 USTs; October 26,1989.
   (c) All petroleum marketing firms
 owning 13-99 USTs at more than one fa-
 cility; April 26,1991.
   (d) All petroleum UST owners not de-
 scribed In paragraphs (a), (b), or (o) of
 this  section, excluding  local  govern-
 ment entities; December 31,1993.
   (e) All local government entities (in-
 cluding Indian tribes) not Included in
 paragraph (f) of this section;  February
 18,1994.
   (f)  Indian tribes that own  USTs on
 Indian lands which meet the applicable
 technical requirements  of this  part;
 December 31,1998.
 [53 FR 43370,  Oct. 26, 1988, as amended at 54
 FR 6452. Feb. 3,1989; 55 FR 18567, May 2,1990;
 55 FR 46025, Oct. 31,1990; 56 FR 66373, Dec. 23.
 1991; 59 FR 9607, Feb. 28,1994]

 §280.92 Definition of terms.
  When used in this subpart, the fol-
 lowing terms shall have  the meanings
given below:
  Accidental release means any sudden
or nonsudden release of petroleum from
an underground storage tank that re-
sults in a need for  corrective action
and/or compensation for  bodily injury
                              §280.S>2

 or property damage neither expected
 nor intended by the tank owner or <>t>-
 erator.
   Bodily injury shall have the meaning
 given to this term by applicable state
 law; however, this term shall  not in-
 clude those liabilities which, consist-
 ent with standard Insurance industry
 practices,  are excluded from coverage
 In liability insurance policies for bod-
 ily injury.
   Chief Financial Officer, In the case of
 local  government owners and  opera-
 tors, means the individual with the
 overall authority and responsibility for
 the collection,  disbursement,  and use
 of funds by the local government.
   Controlling interest means direct own-
 ership of at least 50 percent of the vot-
 ing stock of another entity.
   Director  of the Implementing  Agency
 means  the  EPA  Regional Adminis-
 trator, or,  in the case of a state with a
 program approved under section 9004,
 the Director of the designated state or
 local agency responsible  for carrying
 out an approved UST program.
   Financial reporting year  means the
 latest consecutive twelve-month period
 for which any of the following reports
 used to support a financial test is pre-
 pared:
   (1) a 10-K report submitted to the
 SEC;
   (2) an annual report  of tangible net
 worth submitted to  Dun and  Brad-
 street; or
   (3) annual reports submitted to the
 Energy Information Administration or
 the Rural  Electrification Administra-
 tion.
 "Financial reporting year" may thus
 comprise a fiscal or a calendar year pe-
 riod.
  Legal defense cost is any expense that
 an owner or operator or provider of fi-
 nancial assurance incurs in defending
 against claims or actions brought,
  (1) By EPA or a state  to require cor-
 rective action or to recover the costs of
 corrective action;
  (2) By or on behalf of a  third party
 for bodily  injury or property  damag-e
 caused by an accidental release; or
  (3)  By any  person  to  enforce  the
 terms of a financial assurance mecha-
 nism.
  Local government  shall  have  the
meaning given this term by applicable
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