(A)
Owners or operators of new tank systems or components
must
shall
ensure that the foundation, structural support, seams, connections, and
pressure controls (if applicable) are adequately designed and that the tank
system has sufficient structural strength, compatibility with the
waste(s)
wastes to be stored or treated, and corrosion
protection so that
it
the tank system will not collapse, rupture, or
fail. The owner or operator
must
shall obtain a written assessment reviewed and
certified by a qualified professional engineer in accordance with paragraph (D)
of rule
3745-50-42
of the Administrative Code attesting that the system has sufficient structural
integrity and is acceptable for the storing and treating of hazardous waste.
This assessment
must
shall include the following information:
(1) Design
standard(s)
standards
according to which the
tank(s)
tanks and ancillary equipment is or will be
constructed
,
.
(2)
Hazardous characteristics of the
waste(s)
wastes to be handled
,
.
(3) For new tank systems or components in
which the external shell of a metal tank or any external metal component of the
tank system is or will be in contact with the soil or with water, a
determination by a corrosion expert of:
(a)
Factors affecting the potential for corrosion including but not limited to:
(i) Soil moisture content;
(ii) Soil pH;
(iii) Soil sulfides level;
(iv) Soil resistivity;
(v) Structure to soil potential;
(vi) Influence of nearby underground metal
structures (e.g., piping);
(vii)
Stray electric current; and
(viii)
Existing corrosion-protection measures (e.g., coating, cathodic protection);
and
(b) The type and
degree of external corrosion protection that are needed to ensure the integrity
of the tank system during the use of the tank system or component, consisting
of one or more of the following:
(i)
Corrosion-resistant materials of construction such as special alloys,
fiberglass-reinforced plastic;
(ii)
Corrosion-resistant coating (such as epoxy
,
or fiberglass) with cathodic protection (e.g.,
impressed current or sacrificial anodes); and
(iii) Electrical isolation devices such as
insulating joints and flanges.
[Comment: The practices described in the "National Association
of Corrosion Engineers (NACE)" standard, "Recommended Practice (RP-02-85) -
Control of External Corrosion on Metallic Buried, Partially Buried, or
Submerged Liquid Storage Systems," and the "American Petroleum Institute (API)"
publication 1632, "Cathodic Protection of Underground Petroleum Storage Tanks
and Piping Systems," may be used, where applicable, as guidelines in providing
corrosion protection for tank systems.]
(4) For underground tank system components
that are likely to be affected by vehicular traffic, a determination of design
or operational measures that will protect the tank system against potential
damage
,
;
and
(5) Design considerations to
ensure that:
(a) Tank foundations will
maintain the
loan
load of a full tank;
(b) Tank systems will be anchored to prevent
flotation or dislodgement where the tank system is placed in a saturated zone,
or is located within a seismic fault zone; and
(c) Tank systems will withstand the effects
of frost heave.
(B) The owner or operator of a new tank
system
must
shall ensure that proper handling procedures are
adhered to in order to prevent damage to the
tank
system during installation. Prior to covering, enclosing, or placing a new tank
system or component in use, an independent, qualified installation inspector or
a qualified professional engineer, either of whom is trained and experienced in
the proper installation of tank systems,
must
shall inspect
the system or component for the presence of any of the following items:
(1) Weld breaks;
(2) Punctures;
(3) Scrapes of protective coatings;
(4) Cracks;
(5) Corrosion; and
(6) Other structural damage or inadequate
construction or installation
. All discrepancies shall
be remedied before the tank system is covered, enclosed, or placed in
use.
All discrepancies must be remedied
before the tank system is covered, enclosed, or placed in use.
(C) New tank systems or
components and piping that are placed underground and that are backfilled
must
shall be
provided with a backfill material that is a noncorrosive, porous, homogeneous
substance and that is carefully installed so that the backfill is placed
completely around the tank and compacted to ensure that the tank and piping are
fully and uniformly supported.
(D)
All new tanks and ancillary equipment
must
shall be tested for tightness prior to being
covered, enclosed or placed in use. If a tank system is found not to be tight,
all repairs necessary to remedy the
leak(s)
leaks in the system
must
shall be
performed prior to the tank system being covered, enclosed, or placed in
use.
(E) Ancillary equipment
must
shall be
supported and protected against physical damage and excessive stress due to
settlement, vibration, expansion
, or contraction.
[Comment: The piping system installation procedures described
in "American Petroleum Institute (API)" publication 1615 (November 1979),
"Installation of Underground Petroleum Storage Systems," or ANSI standard B
31.3, "Petroleum Refinery System," may be used, where applicable, as guidelines
for proper installation of piping systems.]
(F) The owner or operator
must
shall
provide the type and degree of corrosion protection necessary, based on the
information provided under paragraph (A)(3) of this rule, to ensure the
integrity of the tank system
during use of the tank
system. The installation of a corrosion protection system that is
field-fabricated must
field fabricated shall be supervised by an independent
corrosion expert to ensure proper installation.
(G) The owner or operator
must
shall
obtain and keep on file at the facility written statements by those persons
required to certify the design of the tank system and supervise the
installation of the tank system in accordance with the requirements of
paragraphs (B) to (F) of this rule to attest that the tank system was properly
designed and installed and that repairs, pursuant to paragraphs (B) and (D) of
this rule
, were performed. These written
statements
must also
shall include the certification statement as
required in paragraph (D) of rule
3745-50-42
of the Administrative Code.
[Comment: For dates of non-regulatory government publications,
publications of recognized organizations and associations, federal rules, and
federal statutory provisions referenced in this rule, see rule
3745-50-11
of the Administrative Code titled "Incorporated by
reference."]
