(A) Owners or
operators of new tank systems or components
shall
must obtain and
submit to the director, at time of submittal of
part
B
"Part B" information, a written
assessment, reviewed and certified by
an
independent, qualified, registered
a
qualified professional engineer, in accordance with paragraph (D) of rule
3745-50-42
of the Administrative Code, attesting that the tank system has sufficient
structural integrity and is acceptable for the storing and treating of
hazardous waste. The assessment
shall
must show 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) to be stored or treated, and corrosion
protection to ensure that it will not collapse, rupture, or fail. This
assessment, which will be used by the director to review and approve or
disapprove the acceptability of the tank system design,
shall
must
include, at a minimum, the following information:
(1) Design standard(s) according to which
tank(s) and/or the ancillary equipment are constructed;
(2) Hazardous characteristics of the waste(s)
to be handled;
(3) For new systems
or components in which the external shell of a metal tank or any external metal
component of the tank system 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)
Existence of 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, etc.;
(ii) Corrosion-resistant coating
(such as epoxy, fiberglass, etc.) with cathodic protection (e.g., impressed
current or sacrificial anodes); and
(iii) Electrical isolation devices such as
insulating joints, flanges, etc.
[Note
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 adversely 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 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 subject
to the standards of rule
3745-54-18 of
the Administrative Code; and
(c)
Tank systems will withstand the effects of frost heave.
(B) The owner or operator of a new
tank system
shall
must ensure that proper handling procedures are
adhered to in order to prevent damage to the system during installation. Prior
to covering, enclosing, or placing a new tank system or component in use, an
independent, qualified installation inspector or an
independent, qualified, registered
a qualified professional engineer, either of whom is
trained and experienced in the proper installation of tank systems or
components,
shall
must inspect the system for the presence of any of the
following items, and all discrepancies
shall
must be remedied
before the tank system is covered, enclosed, or placed in use:
(1) Weld breaks;
(2) Punctures;
(3) Scrapes of protective coatings;
(4) Cracks;
(5) Corrosion; and
(6) Other structural damage or inadequate
construction/installation.
(C) New tank systems or components that are
placed underground and that are backfilled
shall
must be provided
with a backfill material that is a noncorrosive, porous, homogeneous substance
and that is 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
shall
must 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) in the system
shall
must be
performed prior to the tank system being covered, enclosed, or placed into use.
(E) Ancillary equipment
shall
must be
supported and protected against physical damage and excessive stress due to
settlement, vibration, expansion, or contraction.
[Note
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 Refining Piping," and ANSI standard B 31.4, "Liquid
Petroleum Transportation Piping System," may be used, where applicable, as
guidelines for proper installation of piping systems.]
(F) The owner or operator
shall
must
provide the type and degree of corrosion protection recommended by an
independent corrosion expert, based on the information provided under paragraph
(A) (3) of this rule, or other corrosion protection if the director believes
other corrosion protection is necessary 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
shall
must be
supervised by an independent corrosion expert to ensure proper installation.
(G) The owner or operator
shall
must
obtain and keep on file at the facility written statements by those persons
required to certify the design of the tank system in accordance with the
requirements of
paragraphs (B)
through
to (F)
of this rule, that 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
shall
must
also include the certification as required in paragraph (D) of rule
3745-50-42
of the Administrative Code.