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EPA/SWER | RIN: 2050-AF08 | Publication ID: Spring 2004 |
Title: Emergency Planning and Community Right-to-Know Act: Modification to the Threshold Planning Quantity Methodology for the Extremely Hazardous Substances that are Solids in Solution. | |
Abstract: EPA is considering an alternative approach for the threshold planning quantity (TPQ) for chemicals on the Extremely Hazardous Substances (EHS) List that are handled as solids in solution. The current TPQ for solids in solution is based on a very conservative assumption that the entire quantity of the solid chemical at a facility could potentially be released to air in event of an accident. EPA will propose a rule to revise the TPQ for solids in solution and seek comment on an alternative approach based on industry's request to revisit the TPQ rationale for the chemical paraquat dichloride (handled as a solid in aqueous solution). Use of this experimental data would likely raise the TPQ for solids in solution and result in relieving some facilities (number and type unknown at this time) from the regulatory emergency planning and notification requirements under Section 302-304 of the Emergency Planning and Community Right-to-Know Act (EPCRA). EPA will evaluate various experimental data for accidental air releases of solutions containing solid chemicals when developing revised TPQs. EPA would also seek public comment on the appropriateness of considering aerosol size as a factor for potential off-site exposure to communities. | |
Agency: Environmental Protection Agency(EPA) | Priority: Other Significant |
RIN Status: Previously published in the Unified Agenda | Agenda Stage of Rulemaking: Proposed Rule Stage |
Major: No | Unfunded Mandates: No |
CFR Citation: 40 CFR 355 | |
Legal Authority: 42 USC 11001 |
Legal Deadline:
None |
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Timetable:
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Additional Information: SAN 4753. | |
Regulatory Flexibility Analysis Required: No | Government Levels Affected: None |
Federalism: No | |
Included in the Regulatory Plan: No | |
Agency Contact: Kathy Franklin Environmental Protection Agency Solid Waste and Emergency Response 1200 Pennsylvania Avenue NW, Mail Code 5104A, Washington, DC 20460 Phone:202 564-7987 Email: franklin.kathy@epa.gov Sicy Jacob Environmental Protection Agency Solid Waste and Emergency Response 1200 Pennsylvania Avenue NW, Mail Code 5104A, Washington, DC 20460 Phone:202 564-8019 Fax:202 564-2625 Email: jacob.sicy@epa.gov |