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Hazardous Waste Policies and Procedures Manual - 2003 Edition
This manual was prepared for use within ISU.  It is intended for use by, and applies to, ISU employees, staff, visitors, and students.  If this manual or any portion of it is used elsewhere, neither its authors nor the University accept responsibility for its contents.


     There are numerous, and sometimes conflicting, regulatory definitions for hazardous material and hazardous waste.  Not all waste is regulated as hazardous waste under RCRA, but many materials are regulated under separate programs at different concentrations.  A waste generated at ISU is considered to be hazardous if any of the following apply:

4.1  Characteristic of Ignitability, Corrosivity, or Reactivity
     Definitions for each characteristic is found in Appendixes A through D.  These waste streams must be stored in separate SAAs or segregated within a single SAA, even if they are generated in the same room.  Consult with TSO personnel if you have questions concerning these characteristics or their application to a specific waste.
4.2  EPA Listing of Hazardous Waste
     The EPA has established lists of materials that must be handled and disposed of as hazardous when they become wastes.  The listed wastes most frequently generated at ISU include the D-list (Appendixes A through D), U-list (Appendix F), and P-list (Appendix E).  The materials on these lists are subject to change, as are their regulatory levels. 
     Special attention should be given to materials found on these lists which are being used or purchased.  These materials must be handled by the procedures in this manual if and when they become waste.  Do not buy more material than is absolutely needed and will be consumed.  The cost to dispose of a hazardous waste is usually many times the initial cost to obtain the material.
4.3  Mixtures of Listed and Unlisted Wastes
     There are many instances where an EPA-listed waste is found mixed with either an unlisted waste or another non-hazardous material.  The "mixture" and "derived-from" rules under RCRA were designed to prevent using dilution of a listed hazardous waste as a treatment method.  This means that even small concentrations of many hazardous wastes must be considered as regulated and disposed of properly.  Do NOT mix a hazardous waste with a non-hazardous waste! 

4.4  Wastes with New or Unique Characteristics 
     These wastes may be created in research or teaching labs, and must be evaluated to determine whether they meet any of the EPA definitions of hazardous waste.  Contact the TSO personnel for assistance on this matter.

4.5  Types of Hazardous Waste
     There are many kinds of hazardous wastes possible, and it is beyond the scope of this manual to list them all.  However, a brief overview of the regulated waste categories most often encountered at ISU include:

  • D-listed characteristic wastes (found in Appendixes A through C);
  • D-listed specific waste (found in Appendix D);
  • P-listed acute hazardous wastes (found in Appendix E);
  • U-listed specific wastes (found in Appendix F);
  • asbestos and asbestos-containing materials;
  • polychlorinated biphenyls (PCBs);
  • batteries (lead-acid, mercury, lithium, Ni-Cd);
  • photographic solutions;
  • oils and solvents;
  • copier chemicals and supplies;
  • sodium and mercury vapor lamps;
  • suspected carcinogen, mutagen, or teratogen;
  • certain kinds of scintillation fluids;
  • solvent contaminated rags;
  • oil or lead based paints; and
  • certain cleaning chemicals.
Within these categories, subgroups are also possible.  It is a good idea to check with the TSO for information relating to proper disposal of wastes if you suspect they are within one or more of these categories.
4.6  Sources of Information Regarding Hazardous Waste 
     At Idaho State University, there are several sources of information regarding the hazards associated with hazardous waste.  Aside from formal training, which is available through the Technical Safety Office personnel, a variety of books, manuals, videos, network and internet contacts, and vendor-supplied information can be accessed or made available.  Department materials handlers may also be able to answer questions.

4.7  Other Types of Wastes
     There are several types of waste generated at ISU which are not covered by this manual.  These include: 

  • Non-hazardous solid wastes.  Examples include garbage, rubbish, paper or cardboard refuse, latex (water-based) paints and stains, and non-contaminated glassware.
  • Radioactive waste.  Examples include scintillation vials containing radioactive material, and other radioactive wastes that do not also have characteristic or specific hazardous waste properties.  Radioactive wastes are managed under the Radiation Safety Division of the Technical Safety Office.  The “Radiation Safety Policies and Procedures Manual” is available upon request.  You may contact Radiation Safety at extension 2311 with questions concerning radioactive waste.
  • Mixtures of radioactive and hazardous wastes (mixed wastes).  This special class of waste represents a problem for all waste generators, because there are extremely limited and very expensive options for disposal of mixed wastes.  ISU has no storage capability for such waste.  DO NOT GENERATE ANY MIXED WASTE.

If you are unsure of what type of waste you are generating, or how to dispose of it, please contact the TSO at extension 2310 for further waste stream characterization.

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Technical Safety Office
Idaho State University
Campus Box 8106
785 S. 8th St. PS Rm 101 
Pocatello, ID 83209
Phone: (208) 282-2310 or 282-2311
Fax: (208) 282-4649


Page Updated: 1/1/03