Used Antifreeze Information
Shop Tour Stop #1

The following questions and guidance are taken from the
Consolidated Screening Checklist For Automotive Repair Facilities.

 

Used Antifreeze

Is used antifreeze properly contained, segregated, and labeled?

Yes--All three of the following criteria are met:

  • Labeled--Labels or color coating indicate that the container contains only antifreeze. In contrast to used oil, there are no set labels for antifreeze. To be considered properly labeled, the drum/container/tank should simply have the words "used antifreeze" or "waste antifreeze, or "antifreeze only", or something similar that distinguishes antifreeze storage from oil and solvent storage. Words can be spray painted, stenciled, crayoned, or more formally labeled.

  • Segregated--Used antifreeze is in its own container and not mixed with other liquids.

  • Contained--Containers are closed (lids are on and caps are screwed on tight, except when actually adding or removing liquid).

No--Any of the above are not done.

Does the facility generate any antifreeze that is a hazardous waste (>5 ppm lead)?

A facility generates hazardous antifreeze if it has characterized antifreeze as hazardous waste. Antifreeze would be considered hazardous if it is mixed with a hazardous waste such as solvent or gasoline. Antifreeze could also be hazardous if it comes from an old car where the antifreeze has been sitting for years and has picked up enough metals to be characterized as hazardous for metals content, or if the pH > 12.5.

Yes--Facility mixes hazardous solvent or gasoline with waste antifreeze, has tested its antifreeze and determined it is hazardous, or knows from process knowledge (e.g., it only works on old beat up cars that may leave lead or other metals in antifreeze) that its antifreeze is hazardous.

No--Facility has determined its antifreeze is not hazardous by testing the antifreeze or process knowledge (facility understands the potentially hazardous constituents in antifreeze and has determined that the antifreeze it generates is not hazardous, or has explained its process to the state EPA and have been told that their antifreeze is not a hazardous waste).

Don't know--Facility has not made a determination whether its used antifreeze is a hazardous waste, but simply manages it as it believes is the right way to do so.

If yes, is it recycled onsite in a closed loop system?

Yes--Antifreeze is recycled by a recycling machine that connects directly to the car's radiator, recycles the antifreeze, and puts it right back into the same car that it came from. A similar system that connects to used antifreeze storage drums is not considered a closed loop system.

No--Used antifreeze is not recycled in a closed loop system.

If no, is it counted toward facility generator status?

This question is just a reminder from the 2nd question on the checklist that any antifreeze that is a hazardous waste needs to be considered as part of the 100 kg/220 pounds per month limit for Conditionally Exempt Small Quantity Generators.

Yes--Hazardous waste antifreeze that is not recycled in a closed loop system is included in the total from question 2 of the checklist.

No--Hazardous waste antifreeze is not included.

If used antifreeze is not recycled onsite, how is it disposed?

Recycled offsite--The antifreeze is recycled offsite and the facility has the EPA identification number of the recycler (should be on shipping papers.)

Mixed with other fluids--Antifreeze is mixed with used oil, solvents, or other fluid.

Landfill--Antifreeze is disposed at the landfill. Many landfills have a tank designated for used antifreeze. For this question, "landfill" does not include antifreeze that is dumped in the trash.

Other--Method of disposal is not listed.

 



Source: US EPA Office of Enforcement and Compliance Assurance, EPA 305-8-97-005, July, 1997.


Click here to send questions, concerns or feedback to CCAR.