(40 CFR 261 and 262 incorporated by ARM 17.53
LQG’s may accumulate hazardous waste on-site for up to 90 days. LQG have no
accumulation quantity limit. Waste must be shipped off-site within 90 days after the
waste was first placed in a tank, container or on a drip pad. If you accumulate
beyond the 90 days you are a storage facility
and are subject to 40 CFR 264, 265, or 270 to include all required permits
unless you request and receive an extension through the Montana Department of
Accumulate wastes correctly:
Properly mark and close
- LQG may accumulate hazardous waste in tanks, containers, pads,
containment buildings or, in some circumstances, storage pads.
- Tanks and containers used for accumulating hazardous wastes must be sturdy, leak-proof and made
of or lined with materials compatible with the wastes accumulated.
- Tanks and containers must be free of severe rusting,
apparent structural defects (i.e. bulging) or leaks.
- Tanks and containers must be marked with the following information:
- The words “Hazardous Waste,” or, in the case of a satellite accumulation container, with words that describe the contents.
- The date the first waste is placed inside (called the "accumulation start date").
- You may accumulate as much as 55 gallons of non-acute hazardous waste and as much as 1-quart of acute
hazardous waste at or near the point of generation, satellite accumulation.
Inspect containers at least
weekly to ensure they
have not deteriorated or
are not leaking
- All containers of hazardous waste must remain closed unless adding or removing wastes.
- Follow all fire and building codes for wastes accumulated indoors.
- In addition:
- Do not mix incompatible waste or materials.
- Do not place ignitable or reactive wastes in tanks
unless certain precautions are taken.
- Keep containers closed
except when wastes are added or removed.
- Provide enough aisle
space for easy access and visibility.
- Inspect containers at least weekly to
ensure they have not deteriorated or are not leaking.
- You must also meet storage time limits. If you accumulate wastes past storage time
limits, you will be subject to additional hazardous waste requirements.
- When accumulating wastes outdoors the following are recommended:
- Follow all requirements for inside storage;
- Place containers holding liquids on a surface
impermeable to that particular waste;
- Separate incompatible wastes with a dike, berm or wall within the storage area;
- Accumulate wastes in an area without floor drains;
- Restrict access to individuals responsible for managing the wastes;
- Accumulate wastes on a curbed, impermeable surface; and,
- Protect wastes from the elements (rain, snow, and sunlight) and the risk of inadvertent damage.
- A log book or similar documentation is recommended to ensure compliance with
appropriate requirements. The log must provide the following information:
- The hazardous waste generated per month by date.
- The EPA waste code(s).
- The quantity.
- Which hazardous wastes have been removed from accumulation.