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Dyes and Pigments: July 23, 1999

Hazardous Waste Management System; Identification and Listing of Hazardous Waste: Dye and Pigment Industries; Land Disposal Restrictions for Newly Identified Wastes; CERCLA Hazardous Substance Designation and Reportable Quantities; Proposed Rule – July 23, 1999:

The EPA proposed to list two of three wastes from the dyes and pigment industries as hazardous wastes under the Resource, Conservation, and Recovery Act (RCRA), which direct EPA to determine whether certain wastes from the dye and pigment industries present a hazard to human health or the environment. The effect of listing these wastes will be to subject them to stringent management and treatment standards and to emergency notification requirements if there are releases of these hazardous wastes to the environment. EPA is proposing concentration-based listings for the two wastes, such that waste generators have the option of determining that their specific waste is nonhazardous. To have their waste classified as nonhazardous, generators must determine the levels of constituents in their wastes, and certify to EPA that their wastes are below the regulatory levels of concern.

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Environmental Fact Sheet: Hazardous Waste Listing Determination for Two Dye and Pigment Wastes (PDF) (2 pp, 14K)
EPA proposed to list two dye and pigment wastes as hazardous wastes, and not to list one other waste. This is the first time that EPA is proposing concentration-based listings, which stipulate constituent-specific concentration levels in wastes at which the wastes will be hazardous. The proposed concentration-based listings would be self-implementing. Because the dye and pigment industries are known to use batch processes, the dye and pigment wastes are potentially highly variable wastes. For such wastes, a concentration-based approach is more cost-effective and prevents the unnecessary regulation of nonhazardous wastes.

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