7 Del. Admin. Code § 1352-B-17.0

Current through Register Vol. 28, No. 7, January 1, 2025

Section 1352-B-17.0 - Permanent Change in Contents Requirements

17.1 General Requirements for Permanent Change in Contents

17.1.1 The AST Owner or Operator shall notify the Department of the scheduled permanent change in contents of an AST utilizing a form provided by the Department not later than 10 days prior to the permanent change in contents of an AST.

17.1.2 An AST and ancillary piping may be treated as separate entities for the purpose of removal, permanent closure in place or permanent change in contents.

17.1.3 The AST Owner or Operator shall perform Tier 0 sampling and analysis in accordance with the requirements specified in DERBCAP and Part E of this regulation. Within 90 days of completion the Owner or Operator shall submit the Tier 0 sampling results to the Department. An Owner or Operator shall comply with the conditions specified in Part A, subsection 5.4 of this regulation to request an exemption of the Tier 0 investigation requirements.

17.2 Additional Requirements for Permanent Change in Contents

17.2.1 To undergo a permanent change in contents in an AST, the AST Owner or Operator shall at a minimum comply with the following requirements:

17.2.1.1 Remove all the regulated substance from the AST and ancillary piping; and

17.2.1.2 Thoroughly clean the interior of the AST and all ancillary piping of all sludge, solids, and residual regulated substance with documentation of the proper disposition of the removed sludge, solids and residual regulated substance; and

17.2.1.3 Continue active use of the AST and ancillary piping with the intent of only storing and conveying a non-regulated substance in the AST and ancillary piping.

7 Del. Admin. Code § 1352-B-17.0

8 DE Reg. 1167 (02/01/05)
20 DE Reg. 815 (4/1/2017)
27 DE Reg. 536 (1/1/2024) (Final)