Louisiana Administrative Code
Title 33 - ENVIRONMENTAL QUALITY
Part XI - Underground Storage Tanks
Chapter 9 - Out-of-Service UST Systems and Closure
Section XI-905 - Permanent Closure and Changes-in-Service

Universal Citation: LA Admin Code XI-905

Current through Register Vol. 50, No. 9, September 20, 2024

A. At least 30 days before beginning either permanent closure or a change-in-service under Subsections B, C, and D of this Section, owners and operators shall notify the Office of Environmental Assessment of their intent to permanently close or make the change-in-service, unless such action is in response to corrective action.

1. UST owner shall submit a completed UST-SURV-01 form.

2. UST owner and/or certified worker(s) responsible for the closure critical junctures shall notify the appropriate regional office of the Office of Environmental Assessment by phone, mail, email, fax, or online (when available) at least seven days prior to implementing the permanent closure or change-in-service and prior to commencing any closure-critical junctures, as defined in LAC 33:XI.1303.

3. Beginning January 20, 1992, all owners and operators shall ensure that an individual exercising supervisory control over closure-critical junctures (as defined in LAC 33:XI.1303) is certified in accordance with LAC 33:XI.Chapter 13. The assessment of the excavation zone required under LAC 33:XI.907 shall be performed after the department is notified but before the permanent closure or change-in-service is completed.

B. To permanently close a UST, owners and operators shall empty and clean the tank and all associated piping by removing all liquids and accumulated sludges. All tanks taken out of service permanently shall also be either removed from the ground, filled with an inert solid material, or closed in a manner approved by the department. All piping taken permanently out of service shall be removed from the ground, filled with an inert solid material, rendered inoperable, or closed in a manner approved by the department. Single-walled piping that was attached to a tank that is undergoing permanent closure or a change-in-service cannot be reused to convey regulated substances.

C. Continued use of a UST system to store a nonregulated substance is considered a change-in-service. Before a change-in-service, owners and operators shall empty and clean the tank by removing all liquid and accumulated sludge and conduct a site assessment in accordance with LAC 33:XI.907.

D. Cleaning and closure procedures found in LAC 33:XI.599.Appendix A shall be used to comply with this Section.

AUTHORITY NOTE: Promulgated in accordance with R.S. 30:2001 et seq.

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