South Carolina Code of Regulations
Chapter 61 - DEPARTMENT OF HEALTH AND ENVIRONMENTAL CONTROL
Subchapter 61-92 - UNDERGROUND STORAGE TANK CONTROL REGULATIONS
Part 280 - TECHNICAL STANDARDS AND CORRECTIVE ACTION REQUIREMENTS FOR OWNERS AND OPERATORS OF UNDERGROUND STORAGE TANKS (UST)
Subpart C - GENERAL OPERATING REQUIREMENTS
Section 61-92.280.C.33 - REPAIRS ALLOWED
Current through Register Vol. 48, No. 9, September 27, 2024
Owners and operators of UST systems must ensure that repairs will prevent releases due to structural failure or corrosion as long as the UST system is used to store regulated substances. The repairs must meet the following requirements:
(a) Repairs to UST systems must be properly conducted in accordance with a code of practice developed by a nationally recognized association or an independent testing laboratory.
[Note to paragraph (a). The following codes of practice may be used to comply with paragraph (a) of this section:
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(b) Repairs to fiberglass-reinforced plastic tanks may be made by the manufacturer's authorized representatives or in accordance with a code of practice developed by a nationally recognized association or an independent testing laboratory.
(c) Metal pipe sections and fittings that have released product as a result of corrosion or other damage must be replaced. Non-corrodible pipes and fittings may be repaired in accordance with the manufacturer's specifications. As required in Section 280.20(h),should the piping replacement or repair within a consecutive 12 month period constitute more than 25 percent of the piping by length, the entire piping run must be replaced with secondarily contained piping.
(d) Repairs to secondary containment areas of tanks and piping used for interstitial monitoring and to containment sumps used for interstitial monitoring of piping must have the secondary containment tested for tightness according to the manufacturer's instructions, a code of practice developed by a nationally recognized association or independent testing laboratory, or according to requirements established by the Department within 30 days following the date of completion of the repair. All test results must be documented using a Department form, a Department approved form, or submitted in a format as approved by the Department. All other repairs to tanks and piping must be tightness tested in accordance with Sections 280.43(c) and 280.44(b) within 30 days following the date of the completion of the repair except as provided in paragraphs (d)(1) through (3), of this section:
[Note to paragraph (d).The following codes of practice may be used to comply with paragraph (d) of this section:
(e) Within 6 months following the repair of any cathodically protected UST system, the cathodic protection system must be tested in accordance with Section 280.31(b) and (c) to ensure that it is operating properly. All test results must be documented using a Department form or a Department approved form, or submitted in a format as approved by the Department.
(f) Within 30 days following any repair to spill or overfill prevention equipment, the repaired spill or overfill prevention equipment must be tested or inspected, as appropriate, in accordance with Section 280.35 to ensure it is operating properly. All test results must be documented using a Department form or a Department approved form, or submitted in a format as approved by the Department.
(g) UST system owners and operators must maintain records (in accordance with Section 280.34) of each repair until the UST system is permanently closed or undergoes a change-in-service pursuant to Section 280.71.
