Storage requirements for hazardous chemical waste in laboratories and work areas are specified under state regulations. Hazardous chemical waste accumulating in laboratories is subject to the following requirements:

• Containers containing hazardous chemical waste must be labeled with a LSCS Hazardous Waste Tag at all times.
• Waste must be collected and stored at or near the point of generation (same or adjacent room) and under the control of the laboratory where it was generated.
• According to State law, the maximum amount of waste that can be stored in a lab is 55 gallons of a hazardous waste or one quart of extremely hazardous waste. If you reach these volumes of a specific waste stream, you must dispose of the waste to campus Facilities Department within three (3) days of reaching that volume.
• All hazardous waste containers in the laboratory must be kept closed during storage except when waste is being added.
• Hazardous chemical wastes must be compatible with the containers that they are stored in.
• Containers that hold hazardous chemical waste must be stored in secondary containment at all times.
• Containers must be in good condition with screw tops or sealed lids.
• Incompatible waste must be segregated.