Agriculture Reference
In-Depth Information
Solid wastes are defined as hazardous under RCRA when they are included
in one of the following lists (commonly referred to as listed wastes):
•
F-List - Hazardous wastes from non-specific sources (40 CFR
261.31). Five wastes from pesticide manufacturing or use and three
from wood preserving processes are included.
•
K-List - Hazardous wastes from specific sources (40 CFR 261.32).
One waste from wood preservation and 22 from pesticide manufacture
are listed.
•
P-List - Acutely toxic commercial chemical products (40 CFR
261.33[e]).
•
U-List - Toxic and other commercial products (40 CFR 261.33[f]).
Both the P-List and the U-List contain several commercial pesticides.
Solid wastes are also hazardous when they meet one of the following
defined characteristics (40 CFR 261.21 through 261.24):
•
Ignitability (waste code D001)-Based on the waste's low flash point
or other physical characteristics, this material poses a fire hazard.
•
Corrosivity (waste code D002)-Liquid wastes that have a pH Û 2 or Ú
12.5, or corrodes steel at a rate greater than 0.25 inches per year.
These wastes, therefore, have the ability to dissolve steel drums,
tanks, and other containers and care should be taken when
containerizing or shipping these wastes.
•
Reactivity (waste code D003)-Wastes that are unstable and can readily
undergo violent change. These wastes can react violently with water
to generate toxic gases, vapors, or fumes.
•
Toxicity (waste code D004-D043)-Liquid wastes or extracts from
waste solids that fail the Toxicity Characteristics Leaching Procedure
(TCLP) analytical test because they contain certain designated metals,
pesticides, or organic chemicals at concentrations equal to, or in
excess of, specified regulatory limits.
The following are examples of pesticide wastes which can be regulated
under RCRA:
•
Discarded, unused pesticides that are listed or meet one or more of the
characteristics of hazardous waste.
•
Discarded residue or rinsate from drums, tanks or other containers,
depending on the RCRA classification of the pesticide/rinsate.
•
Non-empty pesticide containers which held a listed pesticide or held a
pesticide exhibiting a hazardous waste characteristic.
