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-703 - Requirements for Use of Release Detection Methods

Current through Register Vol. 50, No. 6, June 20, 2024
A. Requirements for All UST Systems
1. Owners and operators of all UST systems
				shall use a method, or combination of the methods, of release detection
				described in LAC 33:XI.701.
2. The
				method of release detection used shall also meet the following requirements.
a. The release detection method used shall be
				capable of detecting a release from any portion of the tank and the connected
				underground piping that routinely contains product.
b. The release detection system shall be
				installed and calibrated in accordance with the manufacturer's
				instructions.
c. The release
				detection system shall meet the performance requirements in LAC 33:XI.701.A, B,
				or LAC 33:XI.Chapter 8, as applicable, with any performance claims and their
				manner of determination described in writing by the equipment manufacturer or
				installer, or in accordance with the third party evaluations, unless otherwise
				approved by the department. In addition, methods listed in LAC 33:XI.701.A.2,
				3, 4, 7, and 8, LAC 33:XI.701.B.1 and 2, and LAC 33:XI.33.Chapter 8 shall be
				capable of detecting the leak rate or quantity specified for that method in the
				corresponding Section of LAC 33:XI.701 or LAC 33:XI.Chapter 8 with a
				probability of detection of at least 0.95 and a probability of false alarm of
				no greater than 0.05.
d. The
				release detection system shall be operated and maintained in accordance with
				the manufacturers instructions. Beginning September 20, 2021, the release
				detection method used shall be operated and maintained, and electronic
				components shall be tested for proper operation, in accordance with
				manufacturers instructions, a code of practice developed by a nationally
				recognized organization or independent testing laboratory listed in LAC
				33:XI.599, or requirements developed by the department that are no less
				protective of human health and the environment than the two options listed
				above.
i. A test of the proper operation shall
				be performed at least once every 12 months and, at a minimum, as applicable to
				the facility, cover the components and criteria listed in LAC
				33:XI.703.A.2.d.ii.(a).-(e).
ii.
				The equipment listed below that fails testing shall be repaired or replaced
				within 30 days of the failed test date:
(a).
				automatic tank gauge and other controllers:
(i). test alarm;
(ii). verify configuration; and
(iii). test battery backup;
(b). probes and sensors:
(i). inspect for residual buildup;
(ii). ensure floats move freely;
(iii). ensure shaft is not damaged;
(iv). ensure cables are free of kinks and
				breaks; and
(v). test alarm
				operability and communication with the controller;
(c). automatic line leak detector: test
				operation to meet criteria in LAC 33:XI.701.B.1;
(d). vacuum pumps and pressure gauges: ensure
				proper communication with sensors and controller; and/or
(e). hand-held electronic sampling equipment
				associated with groundwater and vapor monitoring: ensure proper
				operation.
3. When a release detection method operated
				in accordance with the performance standards in LAC 33:XI.701.A, B, or LAC
				33:XI.Chapter 8 indicates that a release may have occurred, owners and
				operators shall notify the Office of Environmental Assessment in accordance
				with LAC 33:XI.707. If more than one method of release detection is conducted
				on a UST system, and, if any one of these release detection methods indicates
				that the release may have occurred which cannot be overruled by one of the
				other methods currently in use, a suspected release shall be reported in
				accordance with LAC 33:XI.707.
4.
				The release detection method used shall provide a conclusive result at least
				once every 30 days. When an inconclusive result is received, the UST owner or
				operator shall either run another release detection test, where applicable, or
				conduct an alternate method of release detection in order to obtain a
				conclusive result for the 30 day monitoring period. If no alternate method of
				release detection is available, the UST owner or operator may conduct a tank
				and/or line tightness test in accordance with LAC 33:XI.701.A.3 and/or B.2
				within seven days of the end of the 30 day monitoring period in order to
				satisfy this requirement.
5. Any
				UST system that cannot apply a method of release detection that complies with
				the requirements of LAC 33:XI.701-705 shall complete the closure procedures in
				LAC 33:XI.Chapter 9. For previously deferred UST systems described in LAC
				33:XI.101 and LAC 33:XI.Chapter 8, this requirement is applicable after the
				effective dates described in LAC 33:XI.101.A.1.b and LAC 33:XI.801.A.