A DEPARTMENT OF THE STATE OF LOUISIANA
  • LDEQ
  • Land
  • Underground Storage Tank Program

LAND

Underground Storage Tank Program

 

The Underground Storage Tank program will continue to function solely for UST and UST-related tasks. The goal of the UST Program is to protect human health and the environment by preventing releases of petroleum and hazardous substances from UST systems. The release of these regulated products into the environment threatens soil and groundwater resources and can cause explosive vapors to seep into confined spaces and occupied residences.

To help prevent contamination caused by leaking tanks, tank owners and operators must comply with state rules for UST’s. The objectives of the UST program are to ensure that UST systems are properly constructed and designed, installations, repairs, and removals are conducted and inspected by qualified individuals, active USTs are properly operated and monitored for releases, and USTs are properly closed and/or removed and the sites properly assessed for contamination.

 How do I submit information to the UST Division and UST Contact information (click here)

 

Emergency Power Generator Underground Storage Tank System

Emergency power generator UST systems in Louisiana must have met release detection requirements as follows:

  • UST systems installed before August 9, 2009 must have begun using a form of release detection before September 20, 2021.
  • UST systems installed on or after August 9, 2009 must have met the secondary containment with interstitial monitoring requirements at installation.

 EPA has finalized and published new guidance and resources on emergency power generator UST systems on June 3, 2022. The following documents, as described by EPA below, are now available on the EPA OUST website:

  • Federal UST Requirements for Emergency Power Generator UST Systems: https://www.epa.gov/system/files/documents/2022-05/epg-ust-system-requirements.pdf
    • This booklet summarizes the full gamut of federal UST requirements for EPGs - installation, reporting, spill and overfill prevention, corrosion protection, release detection, walkthrough inspections, compatibility, operator training, repairs, financial responsibility, release response, and closure.
    • This also covers Spill Prevention Control and Countermeasures (SPCC) related regulatory requirements specific to emergency power generator UST systems.
  • Owner and Operator Introduction: Automated Interstitial Monitoring Systems for Underground Pressurized Piping on EPG UST Systems: https://www.epa.gov/system/files/documents/2022-05/aim-systems-owner-operator-intro.pdf
    • This document describes a new option for EPG UST system owners and operators to use interstitial monitoring to meet the line leak detector requirement of the federal UST regulation. EPA has determined this option, termed “automated interstitial monitoring (AIM) system,” may be used to meet the dual release detection requirements for pressurized piping systems at EPG UST systems. This document provides basic information and introduces EPG UST system owners and operators to AIM systems.
    • The document also contains forms and checklists to assist with verifying AIM system compliance with UST implementing agencies and for complying with periodic testing requirements for AIM systems. AIM systems are optional, and UST implementing agency requirements may differ. UST system owners and operators should contact their UST implementing agency to determine whether they allows the use of an AIM system, and whether the forms and checklists meet the agency’s documentation requirements.
    • In Indian Country, where the federal UST regulation applies and AIM systems are allowable, UST owners and operators should submit forms to the applicable EPA regional office.
  • In-Depth Discussion: Automated Interstitial Monitoring Systems for Underground Pressurized Piping on Emergency Power Generator UST Systems: https://www.epa.gov/system/files/documents/2022-05/aim-systems-in-depth-discussion.pdf
    • This document contains a more complete discussion about AIM systems (the introduction document does not address all issues). This includes background and technical information on the EPA’s recognition of using automated interstitial monitoring systems to meet federal release detection requirements for underground pressurized piping systems on EPG UST systems.
    • This document can also assist UST system installers, fuel system designers, and other qualified professionals when installing or modifying fuel storage systems to meet federal UST regulatory requirements for underground pressurized piping systems.

In addition to these new documents, a reminder that EPA previously provided responses to questions on several important issues regarding EPG UST systems.  EPA made these responses available to the public in our UST Technical Compendium about the 2015 Federal UST Regulations under the subject Emergency Power Generators: https://www.epa.gov/ust/underground-storage-tank-ust-technical-compendium-about-2015-ust-regulation. Q&A topics include:

  •  Determining if emergency power generator systems must comply with federal UST regulation.
  • Release detection requirements for piping operating at atmospheric pressure.
  • Complying with National Fire Protection Association 110 to meet the federal UST regulation.
  • Visual-based assessments for above ground tanks (e.g. day tanks) that are part of EPG UST systems.

 LDEQ UST Division accepts Automated Interstitial Monitoring (AIM) as a valid form of pressurized piping release detection and recognizes that it meets the line leak detector release detection requirements only for emergency power generator UST systems.

 The Certificate of Compliance form must be completed and signed by either an LDEQ-certified worker, a licensed professional engineer, or a licensed professional geoscientist. The form must be maintained by the facility and made available for review by the department. The form is not required to be submitted to LDEQ in order to use AIM as a release detection method.

 

Please contact Samuel Broussard at Samuel.broussard@la.gov or (337) 262-5744 with any questions.

Final Guidelines for the Evaluation of Underground Storage Tank Cathodic Protection Systems

The LDEQ Underground Storage Tank (UST) Division has finalized the guidance document titled “Guidelines for the Evaluation of Underground Storage Tank Cathodic Protection Systems” on July 15, 2020. All comments received during the draft review period were incorporated into the final document. In order to allow additional time for UST owners, CP testers, and certified workers to become familiar with the requirements contained in the guidance document, the guidance document will become effective on October 15, 2020.

 

New Louisiana Underground StorageTank Regulations Effective September 20, 2018

The revised Louisiana UST regulations, UT018, will become final and effective on September 20, 2018.

 All of the regulations will become effective on September 20, 2018.

  • The specific requirements outlined below will have different compliance dates: Emergency power generator UST systems installed prior to August 9, 2009, will need to begin performing UST system release detection on or before September 20, 2021 (LAC 33:XI.101.A.1.b)
  • First monthly and annual walkthrough inspections will need to take place on or before September 20, 2021 (LAC 33:XI.513)
  • First three-year spill bucket testing, containment sumps used for interstitial monitoring testing, and overfill equipment inspections (LAC 33:XI.511)
    • Facilities in use before September 20, 2018, first test will need to take place on or before September 20, 2021
    • Facilities installed after September 20, 2018, first test will need to take place at installation
  • Annual shear valve testing (LAC 33:XI.515)
    • Facilities in use before September 20, 2018, first test will need to take place on or before September 20, 2021
    • Facilities installed after September 20, 2018, first test will need to take place at installation
  • Annual release detection equipment operation and maintenance testing will need to take place on or before September 20, 2021 (LAC 33:XI.703.A.2.d)
  • Airport hydrant systems and field-constructed tanks (LAC 33:XI.Chapter 8)
    • Facilities in use before September 20, 2018, all LAC 33:XI.Chapter 8 UST requirements before September 20, 2021
    • Facilities installed after September 20, 2018, all LAC 33:XI. Chapter 8 UST requirements apply at installation

Links to New UST Information

Updated UST-ENF-04 form

The UST-ENF-04 form has been revised on May 8, 2023. Clarifications have been made in the instructions regarding emergency repairs or modifications and when a revised UST-REG is required. Changes to the form include a new repair/renovation section to allow for detailed description, a site diagram section that must be used for piping renovations, and notes specifying to only check off newly installed or modified equipment, not what is already installed. Lastly, the contact page has been removed and a web link to the UST Division Contacts page has been provided.

Proposed EPA Rulemaking - E15 Fuel Dispenser Labeling and Compatibility with Underground Storage Tanks  (EPA will accept comments on the proposed rulemaking through April 19, 2021

Reminder of Upcoming UST  Compliance Implementation Time Frames (9/20/2021)

The regulation changes (UT018) can be found on the Monthly Regulation Changes 2018 page under September.

UST Regulation changes PowerPoint presentation updated 12/21/2018

LAC 33:XI.Underground Storage Tanks with the UT018 changes incorporated are available on the LDEQ website.

New Louisiana Underground Storage Tank Rules Brochure

New UST Registration Form - Effective September 20, 2018

Beginning September 20, 2018, the new UST-REG form must be used and submitted in the following instances:

  • Prior to placing the product into a UST
  • Within 30 days of any changes on the current form
  • Within 60 days of the first CEI after 9/20/18 or before 9/20/21, whichever comes first
  • Within 30 days of a change of ownership
  • Within 30 days if currently storing >10% ethanol or >20% biodiesel
  • 30 days prior to switching to  >10% ethanol or >20% biodiesel
  • Before 9/20/21 for previously deferred airport hydrant system or field-constructed tank
  • Prior to placing the product into an airport hydrant system or field-constructed tank installed after 9/20/18

EPA UST Technical Compendium about the 2015 UST Regulation

 

LDEQ-Approved Alternative Testing Protocols for Containment Sumps and Spill Prevention Equipment

 

UST Operation and Maintenance Walkthrough Inspection Forms

UST Spill, Overfill, Secondary Containment, Shear Valve, and Leak Detection Equipment Testing/Inspection Information

  • Link to PEI RP1200: Testing and Verification of Spill, Overfill, Leak Detection and Secondary Containment at UST Facilities (2019 Edition) Document and Testing/Inspection Checklists

 

General Information

 

UST Regulations

 

UST Registration Information

UST Installation/Closure Information

 

Certified Worker Information

Training

Release Detection Resources

UST owners/operators must keep 3 years of monthly release detection records. These are forms that tank owners/operators can use to record their interstitial monitoring results if their equipment does not print records. Use of these particular forms is NOT mandatory.

Surveillance

Enforcement

 

Alternative Fuel Information

 

Remediation Related Information

 

Financial Responsibility

 

Information on Water Discharge General Permits