Land Disposal Restrictions; Treatment Standards for Spent Potliners From Primary Aluminum Reduction (K088) and Regulatory Classification of K088 Vitrification Units

요약

On July 12, 2000 (65 FR 42937), EPA issued a proposed rule presenting potential revisions to the Land Disposal Restrictions treatment standards applicable to spent potliners from primary aluminum reduction (EPA hazardous waste: K088). The proposal requested comment on the proposed treatment standards, the Agency's proposal to classify K088 vitrification units as RCRA subpart X miscellaneous treatment units, and the appropriateness of extending the rational proposed for K088-vitrification units to all vitrification units treating RCRA hazardous waste. The Agency is extending the comment period because several commenters have requested more time to address the issues raised in the proposal, and to generate data on hazardous concentrations in untreated and treated K088 waste. This document extends the comment period for the proposed rule.