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Granting of Two Site-Specific Treatment Variances - U.S. Ecology Idaho and CWM Chemical Services, May 22, 2002
Summary of RuleEPA is promulgating two site-specific variances from the LDR standards for wastes generated at U.S. Ecology Idaho, Incorporated (USEII) in Grandview, Idaho, and CWM Chemical Services, LLC (CWM) in Model City, New York. These waste streams are derived from the treatment of multiple listed and characteristic hazardous wastes, including K088 (spent potliners from primary aluminum reduction) and differ significantly from the waste used to establish the LDR treatment standard for arsenic in K088 non-wastewaters. Accordingly, we are finalizing an alternate treatment standard of 5.0 mg/L Toxicity Characteristic Leaching Procedure (TCLP) for the arsenic in the K088 derived emission control dust from the USEII faacility and for the arsenic in the K088 derived baghouse dust, incinerator ash, and filtercake from the CWM facility.
This treatment variance requires USEII and CWM to dispose of their respective waste in RCRA Subtitle C landfills provided that waste complies with the specified alternate treatment standard for arsenic in K088 non-wastewaters and meets all other applicable LDR treatment standards.
Federal Register (PDF) (5 pp, 176K, About PDF)
Index to Docket (PDF) (1 pg, 5K, About PDF)
Response to Comments (PDF) (4 pp, 9K, About PDF)
Notes of Voice Mail Messages (PDF) (1 pg, 6K, About PDF)
Notice of Intent to Grant Two Site-Specific Treatment Variances - U.S. Ecology Idaho, and CWM Chemical Services, July 24, 2001
Summary of RuleEPA proposed to grant two site-specific treatment variances from the Land Disposal Restrictions (LDR) standards for wastes generated at U.S. Ecology Idaho, Incorporated (USEII) in Grandview, Idaho, and CWM Chemical Services, LLC (CWM) in Model City, New York. Both these waste streams are derived-from the treatment of multiple listed, including K088, and characteristic hazardous wastes. USEII and CWM are both requesting treatment variances for K088 derived-from hazardous waste because they contend that the chemical properties of their wastes differ significantly from the waste used to establish the LDR treatment standard for arsenic in K088 nonwastewaters. Because we believe that the petitioners are correct, we are proposing to grant an alternate treatment standard of 5.0 mg/L Toxicity Charcteristic Leaching Procedure (TCLP) for the arsenic in the K088 derived emission control dust from the USEII facility and for the arsenic in the K088 derived baghouse dust, incinerator ash and filtercake from the CWM facility. If promulgated, USEII and CWM may dispose of their respective waste in on-site RCRA Subtitle C landfills provided the waste complies with the specified alternate treatment standard for arsenic in K088 nonwastewaters and meets all other applicable LDR treatment standards.
Federal Register (PDF) (6 pp, 182K, About PDF)