Waste Management and Safety
Waste Management and Safety
Page 56
5940022WasteandSafety.fm
• It is a discarded commercial chemical product, off-specification species,
container residue, or spill residue of materials specifically listed in
40 CFR 261.33 (P- and U-codes);
• It is a waste from a specific source listed in 40 CFR 261.32 (K-code);
• It is a waste from a non-specific source listed in 40 CFR 261.31 (F-code);
and/or
• It displays any of the following characteristics of hazardous waste:
• ignitability
• corrosivity
• reactivity
• toxicity
There are exceptions to these regulations and you should review the regulations
to see if you are excluded.
4.3.2 Sample Codes
Hazardous wastes are managed by specific codes assigned in 40 CFR 261.20–
261.33. These codes are provided to help you identify hazardous waste. The
generator is responsible for making the actual waste code determination.
Selected characteristic waste codes for chemicals which may be generated using
Hach methods for water analysis are given in the following table. A complete list
of waste codes is found in 40 CFR 261.20 through 40 CFR 261.33.
4.3.3 How to Determine if Waste is Hazardous
Federal laws do not require you to test a material to decide if it is a hazardous
waste. If the product is not specifically listed in the regulations, you must apply
product or generator knowledge to decide if it is hazardous. Often, there is
enough information on a Material Safety Data Sheet (MSDS) to decide. Look for
characteristics of a hazardous waste:
Characteristic USEPA Code
Chemical Abstract
Services (CAS) No.
Regulatory Level
(mg/L)
Corrosivity D002 na na
Ignitability D001 na na
Reactivity D003 na na
Arsenic D004 6440-38-2 5.0
Barium D005 6440-39-3 100.0
Benzene D018 71-43-2 0.5
Cadmium D006 7440-43-9 1.0
Chloroform D022 67-66-3 6.0
Chromium D007 7440-47-3 5.0
Lead D008 7439-92-1 5.0
Mercury D009 7439-97-6 0.2
Selenium D010 7782-49-2 1.0
Silver D011 7440-22-4 5.0
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