7 Del. Admin. Code § 1352-B-15.0

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

Section 1352-B-15.0 - AST Removal Requirements

15.1 General Requirements for AST Removal

15.1.1 The AST Owner or Operator shall notify the Department of the scheduled removal of an AST utilizing a form provided by the Department not later than ten (10) days prior to the removal of an AST.

15.1.2 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.

15.1.3 The AST Owner or Operator shall perform Tier 0 sampling and analysis in accordance with the requirements specified DERBCAP and Part E of this regulation. Within 90 days of completion, the Owner or Operator shall submit 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.

15.2 Additional Requirements for AST Removal

15.2.1 To remove an AST, an Owner or Operator shall at a minimum comply with the following requirements:

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

15.2.1.2 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

15.2.1.3 Completely displace the AST and ancillary piping from its installed location, and render the AST and ancillary piping permanently non-useable or discontinue use of the AST and ancillary piping as an AST and ancillary piping with the intent of not introducing a regulated substance into the AST and ancillary piping.

7 Del. Admin. Code § 1352-B-15.0

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