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Potentially Incompatible Wastes 2. Separation from Incompatibles Many wastes,when mixed with other waste or materials at a hazardous waste facility,can produce Containers holding hazardous waste must be separated from other incompatible wastes by effects which are harmful to human health and the environment,such as(1)heat or pressure,(2)fire at least 20 feet. or explosion,(3)violent reaction,(4)toxic dusts,mists,fumes,or gases,or(5)flammable fumes or gases. 3. Waste Compatibility Below are examples of potentially incompatible wastes,waste components,and materials, along with Incompatible wastes must not be placed in the same container. Hazardous waste must not the harmful consequences which result from mixing materials in one group with materials in another be placed in an unwashed container that previously held an incompatible waste or material. group.This list is not intended to be exhaustive.An owner or operator must,as the regulations require,adequately analyze his wastes so that he can avoid creating uncontrolled substances or 4. Accumulation Start Date reactions of the type listed below,whether they are listed below or not. Accumulation Start Date on containers holding hazardous waste must be clearly visible. Incompatible Chemical Waste Groups: 5. Container Condition Group 1 Containers holding hazardous waste must be in good condition with no signs of Potential consequences of mixing A and B materials are heat generation and violent reaction deterioration or leakage. Wastes Pending Analysis Group I-A Group 1-B Acetylene sludge Acid sludge Containers holding wastes pending analysis to determine whether they are hazardous or non- hazardous must be labeled with the contents and a notation that analysis is pending as well as the Alkaline caustic liquids Acid and water initial date the waste was placed in the container. Once the analysis is made and if it is determined that the waste is hazardous,a hazardous waste label must be affixed to the container and the Alkaline cleaner Battery acid accumulation start date noted. The accumulation start date shall be the date waste was first placed Alkaline corrosive liquids Chemical cleaners in the container,not the date the label was affixed. Alkaline corrosive battery fluid Electrolyte,acid Container Reuse Caustic wastewater Etching acid liquid or solvent Accumulation Time Limits Lime sludge and other corrosive alkalis Pickling liquor and other corrosive acids All containers holding hazardous waste must be transported offsite before the following limits are met: Lime wastewater Spent acid Hazardous Wastes 180 Days maximum Lime and water Spent mixed acid Universal Wastes 365 Days maximum Spent Caustic Spent sulfuric acid Workplace Accumulation Areas Group 2 1. Generators may temporarily accumulate small quantities of hazardous wastes at or near Potential consequences of mixing A and B materials are fire or explosion and generation of the place where wasted are generated provided that certain requirements are met. flammable hydrogen gas 2. The Facility may accumulate up to 55 gallons of hazardous waste at or near the point of its Group 2-A Group 2-13 generation. Aluminum 3. There is no limit on the number of Workplace Accumulation Areas however each accumulation area must meet all of the following requirements: Beryllium a. The waste is accumulated only in containers,not in tanks. Calcium b. The Workplace Accumulation Area is under the control of the operator of the Lithium process that generates the waste. Any waste in Group t-a or 1-b c. The initial date of accumulation is clearly marked on each container and is visible Magnesium for inspection. d. Within three days after the container is full of the quantity limit is reached, Potassium whoever occurs first,the container is marked with the date the container became Sodium full and is moved to the Hazardous Waste Accumulation Area. Zinc powder Other reactive metals and metal hydrides