United States            office of Solid Waste
                    Environmental Protection      and Emergency Response     EPA/530-SW-89-064
                    Agency	Washington DC 20460       October 1989
                    Office of Solid Waste   "              "      "
SEPA        Environmental
                    Fact Sheet
                    NOTIFICATION OF GROUND-
                    WATER MONITORING POLICY
                    FOR DELISTING PETITIONS
        On January 16, 1981, the Environmental Protection Agency (EPA)
        published a list of hazardous wastes from nonspecific and specific
        sources.  These wastes are listed as hazardous because they typically
        and frequently exhibit one or more of the characteristics of hazardous
        wastes - ignitability, corrosivity, reactivity, and toxicity - or thev meet
        other criteria for listing.

        Individual waste streams may vary, however, depending on factors
        such as raw materials and industrial processes.  Thus, a waste that is
        listed as hazardous in the regulations may not be hazardous at every
        facility. Therefore, EPA has a "delisting" procedure that allows a facility
        to demonstrate that a specific waste from a particular generating
        facility should not be regulated as a hazardous waste. To delist a
        waste, the generator must "petition" EPA by submitting manufacturing
        and treatment process information, raw materials lists, analytical data,
        and other information.

        Under current regulations, EPA may require petitioners to submit
        ground-water monitoring data for waste management units that
        contain waste targeted for delisting. The Agency has required this data
        under the general authority given in the delisting regulations. EPA has
        found that such waste-specific data provides significant additional
        information important to fully characterize the hazards posed by
        disposal of a particular waste.