Depending on the generator status, hazardous waste can be stored for 90 days or 180 days.
Large Quantity Generators can store most hazardous waste on site for 90 days. Large Quantity Generators (LQG) are defined by the EPA as producing 2,200lbs./1,000kg of hazardous waste per month, or 2.2lbs./1kg of acute hazardous waste per month. Exceptions do apply based upon waste profile.
Extensions can be filed with state or federal agencies to increase storage time by 30 calendar days.
Small Quantity Generators can store most hazardous waste on site for 180 days (270 days if shipping distance is greater than 200 miles). Small Quantity Generator (SQG) are defined by the EPA as producing more than 220lbs./100kg per month but less than 2,200lbs./1,000kg. A SQG site can never store more than 6,000kgs.
Very Small Quantity Generators have restrictions to storage length. Very Small Quantity Generators (VSQG) produce less than 220lbs./100kgs per month. No more than 2,200lbs./1,000kgs can be stored on site.