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Division of Materials and Waste Management Generator Requirements



Understanding Hazardous Waste Generator Requirements

Any person who generates a waste (other than a household) must determine if the waste meets the definition of a hazardous waste. If the waste is hazardous, the generator must store, treat, transport and dispose of their hazardous waste according to Ohio’s hazardous waste rules. 

For help determining if you generate hazardous waste, these guidance documents will be helpful:
The requirements a generator must comply with depends on the amount of hazardous and acute hazardous waste generated each month and the total amount of hazardous and acute hazardous waste he has on-site at one time. There are three categories of hazardous waste generators. They are often referred to as conditionally exempt small quantity generators (CESQG), small quantity generators (SQG) and large quantity generators (LQG).
 
Hazardous Waste Generator Categories
 
Acute Hazardous Waste
Hazardous Waste
 
Generation per
Month
Total Accumulation
On-site 
Generation per
Month
Total Accumulation
On-site 
CESQG
≤ 1 kg
≤ 1 kg
≤ 100 kg
≤ 1,000 kg
SQG
 
 
> 100 kg and < 1,000 kg
> 1,000 kg and < 6,000 kg
LQG
> 1 kg
> 1 kg
≥ 1,000 kg
≥ 6,000 kg
The following estimates will vary according to the density of the waste.
1 kg ≈ 1 qt
100 kg ≈ 27 gal (about ½ of a 55-gallon drum) or 220 lbs
1,000 kg ≈ 270 gal (about five 55-gallon drums) or 2,200 lbs
6,000 kg ≈ 1,620 gallons (about thirty 55-gallon drums) or 13,200 lbs
 
Note: Accumulation times vary according to generator status. Generation starts the moment a material is discarded.
 
 
For further information, please consult the following documents:

Other Resources:

  • Ohio EPA Answer Place - Enables users to search frequently asked questions, or submit their own question/comment on a variety of Ohio EPA issues and topics. This link is filtered to provide responses specific to generator requirements related questions.
  • Ohio EPA Publications Catalog - Enables users to search for forms, guidance documents, publications, newsletters, checklists etc. on a variety of Ohio EPA issues and topics. This link is filtered to provide publications specific to generator requirements.
  • See also the Division of Hazardous Waste Management’s Web pages: Annual Reports, Manifests, Obtaining a US EPA ID Number, Hazardous Waste Receiving Facilities 

Rules and Laws:  (pertaining to generator requirements) [PDF]

CESQGs:

  • OAC rule 3745-51-05 - Special requirements for hazardous waste generated by conditionally exempt Small Quantity Generators  

SQGs: 

LQGs:

 Contacts

   If you have any further questions, or need assistance pertaining to Generator Requirements, please contact Tammy McConnell at (614)644-2922. 
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Contact the Division of Materials and Waste Management
Mailing Address: P.O. Box 1049, Columbus, OH 43216-1049
Street Address: 50 West Town Street, Suite 700 Columbus, OH 43215
Phone: (614) 644-2621 ~ Fax: (614) 728-5315 ~ E-mail
Emergency Response Hotline (800) 282-9378
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