Mississippi Administrative Code
Title 11 - Mississippi Department of Environmental Quality
Part 5 - Underground Storage Tank Regulations
Chapter 2 - Mississippi Commission on Environmental Quality Underground Storage Tanks Regulations Technical Standards and Corrective Action Requirements for Owners and Operators of Underground Storage Tanks (UST) (Adopted March 22, 1989; Amended August 25, 2011, Last Amended August 23, 2018)
Rule 11-5-2.3 - General Operating Requirements
Section 11-5-2.3-280.33 - Compatibility

Universal Citation: MS Code of Rules 11-5-2.3-280.33

Current through September 24, 2024

(a) Owners and operators must use an UST system made of or lined with materials that are compatible with the substances stored in the UST system and with any soils backfill materials, interstitial monitoring fluids, groundwater or other fluids the tanks system may be exposed to either internally or externally.

(b) Owners and operators with UST systems storing a regulated substance containing greater than 10 percent ethanol or greater than 20 percent biodiesel must meet one of the following:

(1) Demonstrate compatibility of the UST system (including the tank, piping, containment sumps, pumping equipment, release detection equipment, spill equipment, and overfill equipment). Owners and operators may demonstrate compatibility of the UST system by using one of the following options:
(i) Certification or listing of UST system equipment or components by a nationally recognized, independent testing laboratory for use with the regulated substance stored; or

(ii) Equipment or component manufacturer approval. The manufacturer's approval must be in writing, indicate an affirmative statement of compatibility, specify the range of biofuel blends the equipment or component is compatible with, and be from the equipment or component manufacturer; or

(2) Use another option determined by MDEQ to be no less protective of human health and the environment than the options listed in paragraph (b)(1) of this section.

(c) Owners and operators must maintain records in accordance with § 280.35(b) documenting compliance with paragraph (b) of this section for as long as the UST system can be used to store regulated substances.

Disclaimer: These regulations may not be the most recent version. Mississippi may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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