Attachment_B_-_Storage_Tank_System_Interstitial_and_Containment_Integrity_Testing_Schedule_2025.pdf
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- Attached to
- Fuel Tank Maintenance & Repair
- Solicitation number
- 25-B-124LS
- Issued by
- Volusia County, Florida
About this file
Attachment B is a Storage Tank System Interstitial and Containment Integrity Testing Schedule issued by the Florida Department of Environmental Protection in May 2025, specifically addressing testing requirements for underground (UST) and aboveground (AST) storage tank systems. The document outlines a comprehensive testing schedule for various storage tank system components, including single-walled and double-walled spill containment, piping sumps, and dispenser sumps. The schedule specifies initial integrity test dates and retest intervals, with most components requiring testing every 1-3 years, depending on the type of tank and system component.
The testing requirements are based on Florida Administrative Code (Chapters 62-761 and 62-762) and reference industry standards from the Petroleum Equipment Institute (PEI) and American Petroleum Institute (API). The document provides detailed guidelines for verifying the integrity of secondary containment systems and interstitial spaces, with specific exemptions for systems using vacuum, pressure, or liquid level monitoring for release detection. The testing practices are to be conducted according to manufacturer specifications or approved industry standards, with documentation maintained in the Department's Equipment Registration file.
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Text version
May 2025
Attachment B
Storage Tank System Interstitial and Containment Integrity Testing Schedule
Double-walled storage tanks and below-grade double-walled piping shall be tested at the time of installation and at the time of any subsequent repair.
UST Initial Integrity Test
Retest Due (years) AST Initial
Integrity Test Retest Due
(years) Single-walled Spill
Containment* 9/24/2024 1 Spill Containment* 9/9/2024 3
Double-walled Spill Containment* 9/24/2024 3 Piping Sumps* 9/9/2024 3
Piping Sumps* 2/1/2024 3 Dispenser Sumps* 9/9/2024 3
Dispenser Sumps* 2/1/2024 3
*For storage tank system components below-grade
Testing Practices:
Testing of interstitial and containment components are based on the approved manufacturer’s instructions, if provided, or accepted industry practices. The manufacturer’s instructions are found in the Department’s Equipment Registration file (EQ_File). Accepted industry practices are found in publications from Petroleum Equipment Institute (PEI) and American Petroleum Institute (API). Storage Tank System Equipment Registration webpage.
Underground Storage Tank Systems [Chapter 62-761, Florida Administrative Code (F.A.C.)]
62.761.700(3)(a) - The integrity of secondary containment systems and interstitial spaces, regardless of the date of installation of the storage tank system or storage tank system component, shall be verified by performing an interstitial or containment integrity test in accordance with manufacturer’s specifications or PEI/RP1200-12.
Secondary containment systems that use vacuum, pressure, or liquid level (hydrostatic) monitoring for release detection are exempt from this requirement, as well as single-walled storage tanks or integral piping installed within liners.
Aboveground Storage Tank Systems – Shop Fabricated Storage Tank Systems [Chapter 62-762, F.A.C.]
62-762.701(4)(a) - The integrity of secondary containment systems and interstitial spaces, regardless of the date of installation of the storage tank system or storage tank system component, shall be verified by performing an interstitial or containment integrity test in accordance with manufacturer’s specifications or PEI/RP1200-12.
Secondary containment systems that use vacuum, pressure, or liquid level (hydrostatic) monitoring for release detection are exempt from this requirement.
Aboveground Storage Tank Systems – Field Erected Storage Tank Systems [Chapter 62-762, F.A.C.]
62-762.702(4)(a) - The integrity of secondary containment systems and interstitial spaces shall be verified by performing an interstitial or containment integrity test in accordance with API Std 653, API 570, or PEI/RP1200-12, as applicable, regardless of the date of installation of the storage tank system. Secondary containment systems that use vacuum, pressure, or liquid level (hydrostatic) monitoring for release detection are exempt from this requirement.
https://floridadep.gov/waste/permitting-compliance-assistance/documents/storage-tank-equipment-approvalregistration-list https://floridadep.gov/waste/permitting-compliance-assistance/content/storage-tank-system-equipment-registration https://flrules.org/gateway/ChapterHome.asp?Chapter=62-761 https://flrules.org/gateway/ChapterHome.asp?Chapter=62-762 https://flrules.org/gateway/ChapterHome.asp?Chapter=62-762
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