RCRA Waste at a Truck Maintenance Yard: Used Oil, Antifreeze and Solvent Parts Washers

A yard servicing 40 tractors can fill 3 containers in a single afternoon and owe a different analysis for each one. The oil drained during a service, the coolant flushed from a cooling system and the solvent pumped from a parts washer are decided by 3 different provisions. Those provisions share almost no wording between them.

Which of those containers holds hazardous waste is answered at the moment the material leaves the vehicle. 40 CFR 262.11(a) requires the determination at the point of waste generation, before any dilution, mixing or other alteration of the waste occurs. A yard that decides at the collection tank has already mixed 3 answers into 1 container.

Operations in transportation and logistics run maintenance bays alongside a driver-facing compliance program. The technicians making these calls are usually trained on the vehicle side, through a learning library for a fleet. The waste side is handled by whoever signs the manifest.

A technician makes that call with a wrench in one hand, and the answer has to be ready before the drain plug comes out. So the work belongs in the yard's own procedures and in what its technicians were taught, long before an inspector arrives.

Used Oil Is Managed Under Its Own Part

Used oil at a generator leaves the hazardous waste determination sequence altogether while it remains used oil, because 40 CFR part 279 supplies its own management standards. 40 CFR 279.22 sets those standards for a generator, and they concern the container and the response to a spill:

• Storage is limited to tanks, containers, or units subject to regulation under 40 CFR part 264 or 265.
• Containers and aboveground tanks must be in good condition, with no severe rusting, apparent structural defects or deterioration, and not leaking, with no visible leaks.
• Containers, aboveground tanks, and the fill pipes used to transfer used oil into underground storage tanks must be labeled or marked clearly with the words Used Oil.
• On detecting a release to the environment, a generator stops the release, contains the released used oil, cleans up and manages properly the released used oil and other materials, and where necessary repairs or replaces leaking containers or tanks before returning them to service, under 279.22(d).

The same section adds 2 further regimes on top. Used oil generators are also subject to the Spill Prevention, Control and Countermeasures requirements at 40 CFR part 112. Where the oil is stored underground, the Underground Storage Tank standards at part 280 apply as well. Neither turns on whether the used oil exhibits a characteristic of hazardous waste.

Yards frequently treat part 279 as the source of their used oil training. The word train does not appear anywhere in it. The duties it places on a generator are the storage units, their condition, the Used Oil label and the release response listed above. A yard's training obligations come from its generator category and from the hazard communication standard.

Why the Distinction Holds Up in a Bay

A technician draining a crankcase produces a material with its own part of the code and its own container marking. That makes used oil the easiest of the 3 to get right and the easiest to spoil. Mixing a listed waste into the drum takes the contents out of that part, much as a wrong entry changes what a fleet's log proves when reporting an incident from the road.

That record is also the easiest of the 3 to protect, and 4 checks do it:

• Mark every container and aboveground tank with the words Used Oil.
• Mark the fill pipe on any underground tank the same way.
• Inspect containers for rust, structural defects and visible leaks each week.
• Keep listed waste out of the drum, since mixing ends the part 279 treatment.

Filters Leave the Waste Stream on a Condition

Used oil filters are excluded from the definition of hazardous waste, and 40 CFR 261.4(b)(13) attaches conditions to that exclusion. Every condition is a step a technician performs at the bench. Miss one and the filter is hazardous waste again.

The exclusion covers non-terne plated used oil filters that are not mixed with wastes listed in subpart D of part 261. Those filters must have been gravity hot-drained by one of 4 methods:

• Puncturing the filter anti-drain back valve or the filter dome end and hot-draining.
• Hot-draining and crushing.
• Dismantling and hot-draining.
• Any other equivalent hot-draining method that will remove used oil.

Where the Condition Fails

Every element of that sentence describes a way the exclusion can be lost, and each is decided in the bay. Terne plating removes a filter on its own, before anything else is considered. A filter dropped into a drum holding a listed waste is caught by the mixing condition. One tossed cold into a bin was never gravity hot-drained at all. The exclusion is earned at the bench and recorded nowhere else.

The technician at the bench makes the classification.

Antifreeze Runs Through the 262.11 Sequence

Those first 2 containers were each decided by a provision written for them. The third container is decided by the general sequence. Spent antifreeze has no listing description of its own anywhere in part 261 subpart D, which leaves the generator working through 262.11.

The section requires a person who generates a solid waste to make an accurate determination as to whether that waste is a hazardous waste. The point is to ensure wastes are properly managed under the applicable RCRA regulations. The section then sets out the steps in order:

• Make the determination at the point of waste generation, before any dilution, mixing, or other alteration occurs, and again at any point in management where the properties may have changed.
• Determine whether the solid waste is excluded from regulation under 40 CFR 261.4.
• Where the waste is not excluded, use knowledge of the waste to determine whether it meets any listing description under subpart D of part 261, where acceptable knowledge may include waste origin, composition, the process producing the waste, and feedstock.
• Determine whether the waste exhibits one or more hazardous characteristics identified in subpart C of part 261, by applying knowledge of the hazard characteristic in light of the materials or processes used, by testing, or by a combination of both.

Step 4 is where a coolant answer is settled, and 262.11(d)(2) requires testing where available knowledge is inadequate to make an accurate determination. Making the determination on a mixed waste stream is covered separately, and the reasoning is the same wherever a single container receives material from more than 1 process.

The Point of Generation Is the Moment That Counts

A yard that runs its coolant into a bulk tank and samples the tank has answered a question about the tank. The first step asks about the waste at the point it was generated, before dilution or mixing. The analysis a yard relies on therefore has to describe the flush coming out of a cooling system. Knowledge under 262.11(d)(1) can supply that answer where the yard knows the coolant chemistry and the age of the fleet.

Sampling the tank answers the wrong question, so change where you sample:

• Take the sample at the point the coolant leaves the cooling system.
• Record the vehicle, the date and the coolant type with the result.
• Use testing where your knowledge of the chemistry is thin.
• Repeat the determination when the fleet or the coolant changes.

Parts Washer Solvent Turns on What Was in the Drum Before Use

Solvent from a parts washer is the 1 stream of the 3 where the answer was determined by a purchasing decision made months earlier. The F001 listing at 261.31 covers spent halogenated solvents used in degreasing, naming tetrachloroethylene, trichloroethylene, methylene chloride, 1,1,1-trichloroethane, carbon tetrachloride, and chlorinated fluorocarbons. It extends to spent solvent mixtures containing, before use, 10% or more by volume of one or more of those solvents, or of those listed in F002, F004 and F005. The non-halogenated listings work the same way and name different chemistry:

• F003 covers spent xylene, acetone, ethyl acetate, ethyl benzene, ethyl ether, methyl isobutyl ketone, n-butyl alcohol, cyclohexanone, and methanol.
• F005 covers spent toluene, methyl ethyl ketone, carbon disulfide, isobutanol, pyridine, benzene, 2-ethoxyethanol, and 2-nitropropane.

The Answer Is in the Purchase Record

Those 2 words, before use, are what a yard has to be able to answer. A solvent that arrived as an aqueous cleaner and picked up contamination in service has a different listing answer from a blend that shipped with 10% toluene. The document settling it is the safety data sheet held by purchasing. Where the listing question comes back negative, step 4 of the sequence still applies, because a spent solvent can exhibit a characteristic on its own.

Putting the 3 Routes Side by Side

With all 3 containers accounted for, the routes are worth setting beside each other. The 3 filled in that single afternoon are decided by 3 provisions, and only 1 calls for a fresh determination on every batch:

Where the Category Question Begins

Everything above concerns what each container holds. A separate question decides how much of it the yard generates. Section 262.13 requires a generator to determine its category from the amount produced each month, and that category may change from month to month. Which category the yard falls into is covered separately, and it is the question that produces the yard's training duties.

One further check belongs to the yard's own state. Under 40 CFR 271.1(i), nothing precludes a State from adopting requirements more stringent or more extensive than the federal ones. An authorized State program can therefore classify a stream the federal rules leave alone. Checking that state rule is the last of the questions this article opened, and every one is settled from paperwork the yard already keeps.

What a Yard Can Settle Before the Next Oil Change

Most of that paperwork is already in a filing cabinet, and the value of working through it now is that each answer applies to every batch afterwards. RCRA hazardous waste generator training then follows the answers, because the streams a yard generates decide what its technicians need to know.

• The used oil containers and aboveground tanks are marked with the words Used Oil, and so are the fill pipes to any underground tank.
• The filter procedure at the bench names a hot-draining method from 261.4(b)(13) and states that terne plated filters go elsewhere.
• A written determination for spent antifreeze describes the flush at the point of generation and records whether it rests on knowledge or on testing.
• The safety data sheet for the parts washer solvent is on file, and somebody has read the before use composition against the F001 to F005 descriptions.
• Somebody owns the state question, because an authorized State program can be more stringent than part 261.

KC Library supplies the technician-facing half of that, covering used oil handling, filter draining, coolant and solvent segregation as assignable content. Completion is recorded against the named technician who works the bench. The written determinations and the safety data sheets stay with whoever signs the manifest, and the 2 halves describe the same afternoon in the same bay.

One question is worth putting to your yard this week. Can the person draining a filter name the method that keeps it excluded? If not, the exclusion is being claimed on paperwork that nobody standing at the bench has ever been asked to read.

Frequently Asked Questions

1. Does 40 CFR part 279 require used oil training?

No. The word train does not appear anywhere in 40 CFR part 279. The duties the part places on a used oil generator at 279.22 are the storage units, the condition of containers and aboveground tanks, the Used Oil marking, and the 4 cleanup steps required on detection of a release.

2. When are used oil filters exempt from hazardous waste rules?

40 CFR 261.4(b)(13) excludes non-terne plated used oil filters that are not mixed with wastes listed in subpart D of part 261, where the filters have been gravity hot-drained. The regulation names 4 acceptable methods, which are puncturing the anti-drain back valve or the dome end and hot-draining, hot-draining and crushing, dismantling and hot-draining, or any other equivalent hot-draining method that will remove used oil.

3. Is spent antifreeze a hazardous waste?

It depends on the waste stream. No listing description in part 261 subpart D covers antifreeze, so the generator works the 40 CFR 262.11 sequence and determines whether the spent coolant exhibits a hazardous characteristic under subpart C of part 261. That determination is made by applying knowledge of the hazard characteristic, by testing, or by a combination of both, and 262.11(d)(2) requires testing where available knowledge is inadequate.

4. When is parts washer solvent an F-listed waste?

The F001 to F005 listings at 40 CFR 261.31 describe spent solvents and spent solvent mixtures by composition before use. A blend qualifies where it contained, before use, a total of 10% or more by volume of one or more of the named solvents. A solvent that only became contaminated in service is answered by the same listing text applied to what it contained when it was purchased.

5. When does the hazardous waste determination have to be made?

40 CFR 262.11(a) requires the determination for each solid waste to be made at the point of waste generation, before any dilution, mixing, or other alteration of the waste occurs. It also has to be made again at any time during management where the properties have changed, or may have changed, such that the RCRA classification could change.

References

1. Electronic Code of Federal Regulations. "40 CFR 279.22, used oil storage at generator facilities.". ecfr.gov.
2. Electronic Code of Federal Regulations. "40 CFR part 279, standards for the management of used oil.". ecfr.gov.
3. Electronic Code of Federal Regulations. "40 CFR 261.4(b)(13), exclusion for non-terne plated used oil filters.". ecfr.gov. (13)).
4. Electronic Code of Federal Regulations. "40 CFR 262.11, hazardous waste determination and recordkeeping.". ecfr.gov.
5. Electronic Code of Federal Regulations. "40 CFR 262.11(a), determination at the point of waste generation.". ecfr.gov. ).
6. Electronic Code of Federal Regulations. "40 CFR 261.31, hazardous wastes from non-specific sources, F001 to F005.". ecfr.gov.
7. Electronic Code of Federal Regulations. "40 CFR 262.13, generator category determination.". ecfr.gov.
8. Electronic Code of Federal Regulations. "40 CFR 271.1(i), more stringent State requirements.". ecfr.gov. ).