§ 6-2-35 - CLOSURE PLAN.
(A) A closure plan describes procedures for ending the storage of hazardous materials in each storage facility.
(B) A closure plan must:
(1) minimize the need for further maintenance;
(2) minimize the threat to public health or safety from residual hazardous material;
(3) describe the method by which the hazardous material is to be removed, disposed of, neutralized, or reused;
(4) provide for the removal or decontamination of each storage facility; and
(5) if appropriate, require that the applicant:
(a) conduct a soil sample analysis and provide the director with all the sampling information, including the location of each sample, sampling method, test procedure, and test result; and
(b) if there is an indication of soil contamination, demonstrate to the satisfaction of the director that the contamination is not a threat to public health or the environment.
(C) A closure plan for an underground storage tank must include the procedures prescribed by this subsection.
(1) For a tank closure in place, a permittee shall:
(a) remove all flammable or combustible liquid from the tank and connecting lines;
(b) disconnect each suction, inlet, gauge, or vent line;
(c) completely fill the tank with concrete slurry or other material capable of filling all voids and hardening to a solid material, as approved by the director;
(d) cap underground piping; and
(e) request that the director conduct a tank closure inspection.
(2) For a tank removal, a permittee shall:
(a) remove all flammable or combustible liquid from the tank and connecting lines;
(b) disconnect and cap or plug each suction, inlet, gauge, or vent line;
(c) before the tank is removed, remove all ignitable vapor by:
(i) filling the tank with carbon dioxide gas, including the use of dry ice at a rate of 15 pounds for each 1000 gallon capacity; or
(ii) using another method approved by the director; and
(d) request that the director conduct a tank removal inspection.
Source: 1992 Code Section 14-3-40; Ord. 031023-10; Ord. 031211-11.