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)
Appendix 11-5-2-280.4 - GUIDELINES FOR THE PERMANENT CLOSURE OF PETROLEUM UNDERGROUND STORAGE TANK SYSTEMS
Section 11-5-2-280.4-4 - SAMPLING LOCATIONS FOR TANKS
Section 11-5-2-280.4-4.4 - Tank Closure in Place or Change in Service
Section 11-5-2-280.4-4.4.2 - Closure in Place of a Single Tank Less Than or Equal to 25 Feet in Length
Universal Citation: MS Code of Rules 11-5-2-280.4-4.4.2
Current through September 24, 2024
Four borings are required when closing in place a single tank less than or equal to 25 feet in length. One borehole at each corner the tank bed must be advanced to a depth of at least one foot below the bottom of the tank and into the native soil as shown in Figure 6. In order to determine the appropriate sampling depth and number of samples to collect, conduct field screening of the soil column following the guidance Section 4.4.4.
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