Plain Language Guide to Regulations
Solid/Hazardous Waste Management

On-Site Waste Management

Most manufacturers accumulate some hazardous waste on site for a short period of time and then ship it off site to a treatment, storage, or disposal facility (TSDF).

Accumulating Your Waste
Accumulating hazardous waste on site can pose a threat to human health and the environment, so you may only keep it for a short time without a permit. Before shipping the waste for disposal or recycling, you are responsible for its safe management, which includes:

SQGs can accumulate no more than 13,228 lbs. (6,000 kg) of hazardous waste on site for up to 180 days without a permit. You can accumulate this amount of waste for up to 270 days if you must transport it more than 200 miles away for recovery, treatment, or disposal. Limited extensions may be granted by the state director or the regional EPA administrator. If you exceed these limits, you are considered a TSDF and must obtain an operating permit.

SQGs must accumulate waste in tanks or containers, such as 55-gallon drums. Your storage tanks and containers must be managed according to EPA requirements summarized below.

For containers(e.g., drums) you must:

  • Label each container with the words "HAZARDOUS WASTE," and mark each container with the date the waste was generated.
  • Use a container made of, or lined with, a material that is compatible with the hazardous waste to be stored. (This will prevent the waste from reacting with or corroding the container.)
  • Keep all containers holding hazardous waste closed during storage, except when adding or removing waste. Do not open, handle, or store (stack) containers in a way that might rupture them, cause them to leak, or otherwise fail.
  • Inspect areas where containers are stored at least weekly. Look for leaks and for deterioration caused by corrosion or other factors.
  • Maintain the containers in good condition. If a container leaks, put the hazardous waste in another container, or contain it in some other way that complies with EPA regulations.
  • Do not mix incompatible wastes or materials unless precautions are taken to prevent certain hazards.
  • For tanks, you must (applicable to SQGs and LQGs):
  • Label each tank with the words "HAZARDOUS WASTE."
  • Store only waste that will not cause the tank or the inner liner of the tank to rupture, leak, corrode, or fail.
  • Equip tanks that have an automatic waste feed with a waste feed cutoff system, or a bypass system for use in the event of a leak or overflow.
  • Inspect discharge control and monitoring equipment and the level of waste in uncovered tanks at least once each operating day. Inspect the tanks and surrounding areas for leaks or other problems (such as corrosion) at least weekly.
  • Use the National Fire Protection Associations (NFPA's) buffer zone requirements for covered tanks containing ignitable or reactive wastes. These requirements specify distances considered to be safe buffer zones for various ignitable or reactive wastes. You can reach the NFPA at 617-770-3000.
  • Do not place ignitable or reactive wastes in tanks unless certain precautions are taken.
  • Provide at least two feet (60 centimeters) of freeboard (space at the top of each tank) in uncovered tanks, unless the tank is equipped with a containment structure, a drainage control system, or a standby tank with adequate capacity.
  • Additional tank storage requirements for LQGs:
  • If hazardous waste is continuously fed into a tank, it must be equipped with a means of stopping inflow, such as a waste feed cutoff or a bypass system to a standby truck.
  • Additional inspection requirements. At least daily, inspect:
    • Discharge control equipment
    • Data gathered by monitoring equipment
    • Level of waste in the tank
  • Additional inspection requirements. At least weekly, inspect:
  • Construction materials of the tank to see if it is corroding or leaking
  • Construction materials of the area surrounding the tank for signs of corrosion or leaks
  • The complete regulations with regard to storage are found in 40 CFR 262.34.

    Preventing Accidents
    Whenever you store hazardous waste on site, you must minimize the potential risks from fires, explosions, or other accidents.

    All SQGs and LQGs that store hazardous waste on site must be equipped with:

    

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