La. Admin. Code tit. 33 § V-4433

Current through Register Vol. 50, No. 6, June 20, 2024

Section V-4433 - Assessment of Existing Tank System's Integrity

A. For each existing tank system that does not have secondary containment meeting the requirements of these regulations, the owner or operator must determine that the tank system is not leaking or unfit for use. Except as provided in Subsection C of this Section, the owner or operator must obtain and keep on file at the facility a written assessment reviewed and certified by an independent, qualified professional engineer in accordance with LAC 33:V.513 that attests to the tank system's integrity by November 20, 1988.

B. This assessment must determine that the tank system is adequately designed and has sufficient structural strength and compatibility with the waste(s) to be stored or treated to ensure that it will not collapse, rupture, or fail. At a minimum, this assessment must consider the following:

1. design standard(s), if available, according to which the tank and ancillary equipment were constructed;

2. hazardous characteristics of the waste(s) that have been or will be handled;

3. existing corrosion protection measures;

4. documented age of the tank system, if available, (otherwise, an estimate of the age); and

5. results of a leak test, internal inspection, or other tank integrity examination such that:

a. for non-enterable underground tanks, this assessment must consist of a leak test that is capable of taking into account the effects of temperature variations, tank end deflection, vapor pockets, and high water table effects;

b. for other than non-enterable underground tanks and for ancillary equipment, this assessment must be either a leak test, as described in Subparagraph B.5.a of this Section, or an internal inspection and/or other tank integrity examination certified by an independent, qualified professional engineer in accordance with LAC 33:V.513 that addresses cracks, leaks, corrosion, and erosion.

C. Tank systems that store or treat materials that became hazardous wastes subsequent to July 14, 1986 must conduct this assessment within 12 months after the date that the waste became a hazardous waste.

D. If, as a result of the assessment conducted in accordance with LAC 33:V.4431, a tank system is found to be leaking or unfit for use, the owner or operator must comply with the requirements of LAC 33:V.4441.

La. Admin. Code tit. 33, § V-4433

Promulgated by the Department of Environmental Quality, Office of Solid and Hazardous Waste, Hazardous Waste Division, LR 10:200 (March 1984), amended LR 13:651 (November 1987), LR 18:723 (July 1992), amended by the Office of the Secretary, Legal Affairs Division, LR 34:1004 (June 2008).

AUTHORITY NOTE: Promulgated in accordance with R.S. 30:2180 et seq.