Alternate Concentration Limit Guidance, Based on 264.94(b) Criteria, Part 2. Case Studies

摘要

These case studies constitute Part II of the ACL Guidance Document. They are intended to assist Regional and State personnel in exercising the discretion conferred by regulation in evaluating applications for alternate concentration limits (ACLs) submitted pursuant to 40 CFR 264.94. The document is not a regulation and should not be used as such. Regional and State personnel must exercise their discretion in using this guidance document as well as other relevant information in determining whether an ACL demonstration meets the regulatory standard.