The sprinkler densities required for the various storage areas shall
be as indicated in Table 1, Sprinkler heads shall be suitable for installation
in a corrosive environment. Containment shall be in accordance with Resource
Conservation and Recovery Act, PL-580, Subtitle C, and OSHA safety and Health
standards (29 CFR 1910) and, as appropriate, with Toxic Substances Control Act
Regulations (40 CFR 761).
Cut-off Room and Attached Building are defined in National Fire
Protection Association NFPA 30 Flammable and Combustible Liquids and are
categorized as a Separate Inside Storage Area; i.e., "A room or building used
for the storage of liquids in containers or portable tanks, separated from
other types of occupancies."
In storage areas that are classified as liquid warehouses, explosion
venting is not required.
Liquid warehouses are defined in NFPA 30 as separate detached
buildings or attached buildings separated from other types of occupancies by
standard 4-hour fire rated walls, used for warehousing-type operations for
liquids. Subdivision of a liquid warehouse does not constitute a basis for
changing its classification.
2.2.2.5
Explosion Venting. In storage areas that are classified as a
cut-off room or an attached building and where Class I-A liquids (NFPA 30) are
stored in containers larger than 1 gallon, the exterior wall or roof
construction shall be designed to include explosion venting features such as
lightweight wall assemblies, lightweight roof assemblies, and roof hatches or
windows of the explosion venting type. Explosion Venting, NFPA 68, provides
information on this subject and should be used in conjunction with good
engineering judgement.
2.2.2.6
Safety Equipment Lockers. Lockers for equipment (such as two sets
of protective clothing and self-contained breathing apparatus) shall be
readily available for personnel operating the facility. The requirements set
forth in 29 CFR 1910, Subpart I, Personnel Protective Equipment, shall apply.
2.2.2.7
Stack Height. Hazardous waste shall be stored in racks not
exceeding 25 feet in height where a materials handling system that elevates
the operator (operator-up) with the wastes is used. When systems that do not
elevate the operator (operator-down) are used, rack height shall be limited to
18 feet.
2.2.2.8
Containment. Container storage areas shall have provisions for
containing leaks, spills, and accumulated precipitation as required by 40 CFR,
part 264.175. Containment systems for flammable or combustible liquid storage
shall also comply with NFPA 30.
2.2.3
Communications.
a) Telephone or wireless communications shall be provided.
b) Internal communications should consist of a master and station
receive and talk, if the size of facility warrants (40 CFR 265.32).
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