Hazardous Waste - DNREC
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Hazardous wastes are solid wastes that are inherently dangerous to handle or dispose. They include chemicals such as solvents, mercury in thermometers, and lead in paint. The Division of Waste and Hazardous Substances regulates transporters, businesses and industry so that hazardous wastes are managed properly and cleaned up in the event of a spill or release.
Compliance and Permitting Section
89 Kings Highway
Dover, DE 19901
302-739-9403
Hazardous Waste Menu
Hazardous Waste Home
Large Quantity Generators
Small Quantity Generators
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The Division regulates hazardous waste, not hazardous products or materials. If the substance is not considered to be a “waste,” then it is not governed by the State’s hazardous waste laws and regulations. Non-waste items include substances that are considered raw materials or products that can be used commercially. Regulations pertaining to “extremely hazardous substances”
are implemented by
the Emergency Response and Strategic Services Section.
Large quantity generators
of hazardous waste — those generating greater than 1,000 kilograms (≈2,200 pounds) of hazardous waste or 1 kilogram (≈2.2 pounds) of acutely hazardous waste in any single calendar month — must file an
annual hazardous waste report
Small quantity generators
of hazardous waste — those generating greater than 100 kilograms (≈220 pounds) but less than 1,000 kilograms (≈2,200 pounds) of hazardous waste or less than 1 kilogram (≈2.2 pounds) of acutely hazardous waste in any single calendar month — must re-notify DNREC starting in 2021 and every four years thereafter.
What Are Hazardous Wastes?
Hazardous wastes can be any solid, liquid, or containerized gas that can no longer be used, and is to be thrown away, recycled or stored. A waste is considered hazardous if it is listed or identified as exhibiting a characteristic.
A listed waste is one which is identified on one of four lists contained in Delaware’s
Regulations Governing Hazardous Waste
7 DE Admin. Code 1302
). These wastes are listed because they have characteristics or toxic constituents shown to be harmful.
Even if a waste does not appear on a list, it may still be hazardous because it has one of the following characteristics:
It is ignitable
. These wastes are combustible or flammable. Examples are paint wastes, degreasers and solvents.
It is corrosive.
These wastes can dissolve metal or burn skin. Examples are rust removers, acid or alkaline cleaners.
It is reactive.
These wastes undergo rapid chemical reactions when mixed with water or other materials. Examples include cyanide plating wastes, bleaches and oxidizers.
It is toxic.
These wastes contain high concentrations of certain metals or volatile chemicals. Toxic wastes are determined through a laboratory test. Examples include pesticides, metals such as lead, cadmium, or chromium wastes.
Hazardous Waste Fact Sheets
These fact sheets provide a better understanding of managing hazardous wastes. They are meant to serve as guides and do not supersede Delaware’s
Regulations Governing Hazardous Waste
7 DE Admin. Code 1302
).
Basic Business Guide for Hazardous Waste Management
Hazardous Waste Management: Waste Determinations
Aerosol Can Management
Battery Recycling
Electronic Waste Management
Gas Station and Convenience Store Hazardous Waste Management
Hazardous Waste Generation: Episodic Events
Pharmaceutical Waste Management Guide
Satellite Accumulation Waste Management
Used Oil Management
Waste Lamp Management
Vehicle Mercury Switch Recovery Program
Vape Shop Hazardous Waste Management Fact Sheet
Nicotine Waste Management Fact Sheet
E-Cigarette Retailer Hazardous Waste Management Fact Sheet
Related Links
Electronic Goods Recycling
(DSWA)
Div. of Air Quality Asbestos Information
Asbestos Disposal Procedures and Forms
(DSWA)
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