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Encyclopedia X, Subpart X

Introduction

Subpart X Units

Subpart X Requirements

Information Requirements

Environmental Assessments, Monitoring, and Modeling Under Subpart X

Risk Assessment

Enforceable Permit Conditions/Inspections

Appendices

 

Encyclopedia X, Subpart X
Introduction to Subpart X
Description: On December 10, 1987, under 52 FR 46946, EPA issued regulations that outlined procedures for issuing permits to miscellaneous units that treat, store, or dispose of hazardous waste. Those regulations, which were codified at 40 CFR Part 264, Subpart X, created a new category of hazardous waste management unit (known as the miscellaneous unit or Subpart X unit). Such units were defined as those that do not meet any of the definitions in Part 264 of other types of hazardous waste management units.
Applicability
Description: Because Subpart X is an exclusionary category, a variety of treatment and disposal units are considered. Some of the types of operational units that are discussed in this document include open burn/open detonation (OB/OD) units, enclosed combustion devices, carbon and catalyst regeneration units, thermal desorption units, shredders, crushers, filter presses and geologic repositories.
Purpose of the Document
Description: This document provides to permit writers guidance for evaluating information submitted by permit applicants addressing the information requirements specific to Subpart X units under 270.23.

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Encyclopedia X, Subpart X