Hazardous Waste Disposal for Commercial Generators

You are a Small Quantity Generator (SQG) if you generate:

• 220 lb or less (approximately ½ a drum) of hazardous wastes per calendar month; or
• Less than 2.2 pounds of acutely hazardous wastes per calendar month; or
• 220 pounds or less of spill cleanup debris containing hazardous waste per month.

As a SQG, you are required to:

• Designate all of your wastes
• Keep track of your wastes by identifying all hazardous wastes generated per month and the total amount stored on-site each month
• Limit on-site storage to less than or equal to 2,200 lbs of hazardous waste on-site at an time
• Properly dispose of hazardous waste to a facility that is permitted to accept and treat the waste on site, so that it does not pose any risk to human health or the environment.

You are a Medium Quantity Generator (MQG) if you generate:

• More than 220 lbs but less than 2,200 lbs (½ to 5 drums) of a hazardous waste per calendar month.

As a MQG, you are required to:

• Keep track of your wastes by identifying all hazardous wastes generated per month and the total amount stored on-site each month.
• Limit on-site storage to 2,200 lbs of hazardous waste on-site at any time. If storage is more than 2,200 lbs, a hazardous waste storage facility permit will be required.
• Waste must be shipped off-site within 180 days of production. If the facility is more than 200 miles from a licensed storage/treatment facility that time line is extended to 270 days.

You are a Large Quantity Generator (LQG) if you generate:

• More than 2,200 lbs (5 drums) of hazardous waste per calendar month
• More than 2.2 pounds of acutely hazardous wastes per calendar month

As a LQG, you are required to:

• Ship all accumulated waste off-site within 90 days of production. If the 90 day limit cannot be met, the facility is required to obtain a hazardous waste storage facility permit.

For more information on hazardous waste generators and permit requirements in Washington click here

Quick Reference Guide for Dangerous Waste Generators in Washington State click here

Local options for disposal by SQG contact

For Benton County business only:	Benton County Moderate Risk Waste Facility Richland Landfill Richland Landfill 3102 Twin Bridge Rd. 509-942-7387 * by appointment only for commercial businesses