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Waste Specialist
Posted Sep 30, 2026 · We last checked this listing on Oct 6, 2026
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Likely interview questions for this role
Written from this job description, not a generic list. Each one notes what the interviewer is really checking.
About your past
Tell me about a time you found a compliance problem in waste handling. What did you do?
What they are checking: Whether they act on problems quickly and follow reporting rules rather than quietly fixing and moving on.
Describe how you balance the cost of disposal with doing things fully by the rules.
What they are checking: Whether they look for legitimate savings without ever cutting corners on compliance.
What would you do
A waste generator keeps mislabeling containers. How do you fix that without making them avoid you?
What they are checking: Whether they can coach researchers into compliance and keep generators willing to ask for help.
How would you set up waste stream segregation for a new project so that waste is profiled correctly from day one?
What they are checking: Whether they plan waste handling early, which cuts both cost and regulatory risk.
Analytical results come back and the numbers are near a classification limit. How do you decide?
What they are checking: Whether they handle borderline data conservatively and document the reasoning behind the call.
About the work
Walk me through how you would characterize an unknown waste stream from a lab cleanout, from sampling to classification.
What they are checking: Whether they can build a defensible characterization using sampling plans, process knowledge and analytical results.
How do you decide whether a waste is RCRA hazardous, radioactive, mixed or TSCA regulated?
What they are checking: Whether they understand how the different regulations overlap and where mixed waste gets complicated.
A shipment is headed to EnergySolutions or NNSS. How do you make sure it meets their waste acceptance criteria?
What they are checking: Whether they know that a rejected shipment is costly and can create compliance trouble, and how to prevent that.
How do you write a work instruction for packaging operations so field crews follow it correctly the first time?
What they are checking: Whether they can write clear, usable procedures for people doing hands-on work with hazardous materials.
How do you use Excel or other tools to track waste inventories and shipments?
What they are checking: Whether they keep organized, accurate records that hold up in inspections and audits.
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Practice this out loudThe full job description
As published by Argonne National Laboratory.