Code of Massachusetts Regulations › 310 CMR - DEPARTMENT OF ENVIRONMENTAL PROTECTION › Title 310 CMR 30.000 - Hazardous waste › GENERAL PROVISIONS › Section 30.561 - Examples of Potentially Incompatible Wastes

Current through Register 1525, July 5, 2024
Many hazardous wastes, when mixed with other waste or
				  material, can produce effects which are harmful to human health and the
				  environment, such as (1) heat or pressure, (2) fire or explosion, (3) violent
				  reaction, (4) toxic dusts; mists, fumes, or gases, or (5) flammable fumes or
				  gases.
Below are examples of potentially incompatible wastes, waste
				  components, and materials, along with the harmful consequences which might
				  result from mixing material in one group with material in another group. The
				  list is intended only as a guide to indicate the need for special precautions
				  when managing these potentially incompatible waste materials or
				  components.
This list is not intended to be exhaustive. An owner or
				  operator shall, as regulations require, adequately analyze his wastes so that
				  he can prevent creating uncontrolled substances or reactions of the type listed
				  below, whether they are listed below or not.
In the lists below, the mixing of a Group A material with a
				  Group B material might have the potential consequences as noted.
Group 1-A
Group 1-B
Acetylene sludge
Acid sludge
Alkaline caustic liquids
Acid and water
Alkaline cleaner
Battery acid
Alkaline corrosive liquids
Chemical cleaners
Alkaline corrosive battery fluid
Electrolyte, acid
Caustic wastewater
Etching acid liquid or solvent
Lime sludge and other corrosive
Pickling liquor and other
alkalies
corrosive acids
Lime wastewater
Spent acid
Lime and water
Spent mixed acid
Spent caustic
Spent sulfuric acid
Potential consequences: Heat generation; violent
				  reaction.
Group 2-A
Group 2-B
Aluminum
Any waste in Group 1-A or 1-B
Beryllium
Calcium
Lithium
Magnesium
Potassium
Sodium
Zinc powder
Other reactive metals and metal
								hydrides
Potential consequences: Fire or explosion; generation of
				  flammable hydrogen gas.
Group 3-A
Group 3-B
Alcohols Water
Any concentrated waste in Groups 1-A or
								1-B
Calcium
Lithium
Metal hydrides
Potassium
SO2Cl2, SOCl2, PCl3, CH3SiCl3
Other water-reactive waste
Potential consequences: Fire, explosion, or heat generation;
				  generation of flammable or toxic gases.
Group 4-A
Group 4-B
Alcohols
Concentrated Group 1-A
Aldehydes
or 1-B wastes
Halogenated hydrocarbons
Group 2-A wastes
Nitrated hydrocarbons
Unsaturated hydrocarbons
Other reactive organic compounds and
								solvents
Potential consequences: Fire, explosion, or violent
				  reaction.
Group 5-A
Group 5-B
Spent cyanide and sulfide solutions
Group 1-B wastes
Potential consequences: Generation of toxic hydrogen cyanide
				  or hydrogen sulfide gas.
Group 6-A
Group 6-B
Chlorates
Acetic acid and other
Chlorine
organic acids
Chlorites
Concentrated mineral acids
Chromic acid
Group 2-A wastes
Hypochlorites
Group 4-A wastes
Nitrates
Other flammable and
Nitric acid, fuming
combustible wastes
Perchlorates
Permanganates
Peroxides
Other strong oxidizers
Potential consequences: Fire, explosion, or violent
				  reaction.