Number 35 November, 2000

Rules for Radwaste

Cautionary Note: ORS is not obligated to remove waste that has been improperly collected or identified. ORS attaches a label to each waste container identifying the lab of origin and reserves the right to return waste to the generating laboratory for correction. Investigators may be responsible for extraordinary costs of disposing of mixed wastes if advance approval to generate them was not obtained.

Proper packaging and lawful description of radioactive waste is of such importance that each generator must be aware of and follow a multitude of very specific rules and regulations. Some of the most important DOs and DON'Ts follow.

• Never put liquids or scintillation vials into a dry waste container.
• Black out or destroy all labels and markings that identify the waste as radioactive. Use a big, black marker to cover everything that says "radioactive material," or identifies a radionuclide. Look at the blue, yellow or gray plastic shipping containers, inner vials, warning tape, and markings you have put on your own containers.
• Never put loose sharps into a radwaste container.
• Follow the radionuclide segregation rules scrupulously.
• Do not use red or orange biohazard bags for radioactive waste.
• Never combine any uranium or thorium product with any other waste.
• Keep a written log of the radionuclides and activity in each container; this is a regulatory requirement.

• Write the name of the scintillation cocktail you use on each waste card.
• Vials with radionuclides with half-lives exceeding 109 days must be separated from shorter lived radionuclides.
• H-3 and C-14 must be segregated from all other vials.
• Every separate collection under the above rules must have a separate waste card.

Liquid Waste

• A mixed waste contains a hazardous chemical in addition to radioactive material. The general rule is, "Never create a mixed waste." Mixed wastes can be extremely expensive and difficult to dispose of and are subject to rigid environmental regulations. Always contact ORS in advance of generating any mixed waste.