Hazardous Waste Disposal

Waste Disposal Procedure

The disposal of the waste generated from any experiment performed is a critical environmental issue and is the responsibility of anyone who designs/writes experiments to be performed in a laboratory. This includes all research labs as well. Waste disposal directions need to be a part of the format of all experiments written. The YSU Occupational Health Exposure Plan, Section 1.0 Standard Operating Procedures for Laboratory Chemicals and Hazardous Waste Contingency Plan, Appendix C, Policy and Procedures for Disposing of Chemical Waste, address this issue. Below is the Standard Operating Procedure for Waste Disposal. Waste includes any chemical no longer needed or no longer useful. It also includes all reagents used during class, poured out of original containers into smaller containers that should not be poured back into original container after class. It is the responsibility of everyone who generates waste to dispose of it properly. It is also the responsibility of any class instructor to collect/dispose of all waste at the end of each laboratory session. All waste bottles must be capped if not in use. Waste is not to be left in the hoods at anytime. Keep in mind that each Lab Coordinator or Principal Investigator may add additional steps to this procedure in conjunction with the following:

  • Dilute acid waste with pH greater than 2, where corrosivity was the only hazardous characteristic (e.g. not ignitable, oxidizing, toxic or EPA-listed waste) can be flushed down the drain..
  • Solvent wastes are placed in one of two red cans in Prep room or research area.

One for non-halogenated wastes, One for halogenated wastes. When the can is 2/3 full, fill out and submit waste pickup request form or send email to cmc@ysu.edu

  • A Chemical Waste Form must be used for all other waste. If the waste is already in an appropriate bottle/w cap you may use that bottle. If not, an empty reagent bottle is available in the Chemical Management Center. Empty bottles not used for waste must be returned to CMC and the original chemical label must first be defaced or removed.

Obtain a Chemical Waste Form (available in the Chemical Management Center). Complete the form and tape it onto bottle so that it remains
attached (i.e. two pieces of tape, vertically placed at top and bottom of the label) until Chemical Management removes it for
their records. Submit waste pickup request or email cmc@ysu.edu


Most wastes generated in the laboratories are prohibited from disposal in the regular trash or down the drain. Many of these wastes are regulated under the federal Resource Conservation and Recovery Act (RCRA).

The term hazardous waste is defined under RCRA as solids, liquids, and gases that exhibit certain characteristics or are specifically listed in the rules. Hazardous waste is regulated under a “cradle to grave” concept, meaning that the waste is tracked via written records from the time it becomes a waste, and that ownership remains with the generator forever. Therefore, the best method to reduce the risk of future remediation costs is to reduce the amount of hazardous waste generated. It is essential to consider the amounts and types of wastes that will be generated when a project is in the proposal stage in order to ensure that a disposal method exists that is both legal and affordable—and to minimize the amount of waste generated.

Every person responsible for the generation of waste at YSU must understand the proper disposal procedures and the requirements of the Ohio hazardous waste rules under RCRA.