Louisiana Administrative Code › Title 33 - ENVIRONMENTAL QUALITY › Part XI - Underground Storage Tanks › Chapter 7 - Methods of Release Detection and Release Reporting, Investigation, Confirmation, and Response › Section XI-707 - Reporting of Suspected Releases

Current through Register Vol. 50, No. 6, June 20, 2024
A.
				All owners, operators, employees, agents, contractors, or assigns having
				knowledge of any of the conditions listed below shall notify the Office of
				Environmental Assessment in the manner provided in LAC 33:I.3923 within 24
				hours after becoming aware of the occurrence or, if they have knowledge of an
				emergency condition, shall report it immediately in accordance with LAC
				33:I.Chapter 39. Owners and operators of UST systems shall follow the
				procedures specified in LAC 33:XI.711 after discovery of any of the following
				conditions.
1. Released regulated substances
				are discovered at the UST site or in the surrounding area (such as the presence
				of free product or vapors in soils, UST system backfill, basements, sewer and
				utility lines, or nearby surface water).
2. Unusual operating conditions are observed
				(such as the erratic behavior of product-dispensing equipment caused by line
				leak detector restricting product flow, the sudden loss of product from the UST
				system, an unexplained presence of water in the tank, or liquid (e.g., product
				or water) in the interstitial space of secondarily contained systems), unless:
a. the system equipment or component is found
				not to be releasing regulated substances to the environment;
b. any defective equipment or component is
				immediately repaired or replaced;
c. for secondarily contained systems
				conducting interstitial monitoring:
i. except
				as provided for in LAC 33:XI.701.A.6.b.iv, any water in the interstitial space
				not used as part of the interstitial monitoring method (e.g., brine filled) is
				immediately removed; or
ii. if it
				is verified within 24 hours that the water is from surface water intrusion
				(e.g., the water intrusion occurred during a heavy rain event). Water shall be
				removed prior to the next scheduled release detection monitoring event (within
				30 days or less).
3. Monitoring results, including
				investigation of alarms from a release detection method required under LAC
				33:XI.703.B and C and LAC 33:XI.803.D indicate that a release may have
				occurred, unless:
a. the monitoring device is
				found to be defective and is immediately repaired, recalibrated, or replaced,
				and additional monitoring conducted within 24 hours does not confirm the
				initial result;
b. the leak is
				contained in the secondary containment and:
i.
				any product resulting from dispenser leaks or spills that is contained in
				secondary containment sumps is immediately removed upon discovery;
ii. except as provided for in LAC
				33:XI.701.A.6.b.iv, any water in the interstitial space not used as part of the
				interstitial monitoring method (e.g., brine filled) is immediately
				removed;
iii. any defective
				equipment or component is immediately repaired or replaced; or
iv. it is verified within 24 hours that the
				liquid is from surface water intrusion (e.g., the water intrusion happened
				during a heavy rain event). Water shall be removed prior to the next scheduled
				release detection monitoring event (within 30 days or less);
c. in the case of inventory
				control, described in LAC 33:XI.701.A.1, a second month of data does not
				confirm the initial result; or
d.
				the alarm was investigated and determined to be a nonrelease event (e.g., from
				a power surge or caused by filling a tank during release detection
				testing).