Pennsylvania Code
Title 25 - ENVIRONMENTAL PROTECTION
Part I - Department of Environmental Protection
Subpart D - Environmental Health and Safety
Article VI - General Health and Safety
Chapter 245 - ADMINISTRATION OF THE STORAGE TANK AND SPILL PREVENTION PROGRAM
Subchapter E - TECHNICAL STANDARDS FOR UNDERGROUND STORAGE TANKS
GENERAL OPERATING REQUIREMENTS
Section 245.432 - Operation and maintenance including corrosion protection
Current through Register Vol. 54, No. 44, November 2, 2024
(a) Owners and operators of metal underground storage tank systems with corrosion protection shall comply with all of the following requirements to ensure that releases due to corrosion are prevented until the underground storage tank system is permanently closed or undergoes a change-in-service in accordance with § 245.452 (relating to permanent closure and changes-in-service).
(b) Monitoring and observation wells shall be clearly identified using industry codes and standards, and caps shall be secured to prevent unauthorized or accidental access.
(c) Underground storage tank systems and storage tank system components, including tanks, piping, line leak detectors, product sensors and probes, containment sumps, measuring devices (including gauge sticks), gauges, corrosion protection, spill prevention, overfill prevention and other appurtenances whose failure could contribute to a release of product, shall be maintained in a good state of repair to ensure they function as designed.
(d) Tanks which have been lined and have not had corrosion protection added in accordance with § 245.422(b)(2) (relating to upgrading of existing underground storage tank systems) shall have the lining evaluated by, or under the direct onsite supervision of, a TL certified tank installer or by a professional engineer.
(e) Lined tank systems that do not meet original design specifications or have not been evaluated as required in subsection (d)(1) and (2) shall be emptied, removed from service and permanently closed in accordance with § 245.451 (relating to temporary removal from service (out-of-service)) and § 245.452.
(f) Primary and secondary containment structures, containment sumps and spill prevention equipment must be maintained in a leak-free condition. If any liquid or regulated substance is detected, the liquid or regulated substance shall be immediately removed and the defective component, if applicable, shall be repaired in accordance with § 245.434 (relating to repairs allowed). Repairs, including those performed to stop infiltration, shall be tested in accordance with § 245.434(4).
(g) A check for water in petroleum tanks shall be performed monthly and excess water shall be promptly removed as necessary. Water may not exceed the tank manufacturer's recommendations, product supplier's guidelines, or 2 inches of accumulation in the bottom of the tank, whichever is less. No amount of water is desirable in gasoline containing ethanol. Therefore, water should not be allowed to accumulate in tanks containing ethanol. Excess water shall be properly managed in accordance with applicable State and Federal requirements, such as Chapter 299 (relating to storage and transportation of residual waste), 40 CFR Part 261 , Subpart B (relating to criteria for identifying the characteristics of hazardous waste and for listing hazardous waste) and 29 CFR Part 1910 (relating to occupational safety and health standards).
This section cited in 25 Pa. Code § 78a.57 (relating to control, storage and disposal of production fluids); 25 Pa. Code § 245.403 (relating to applicability); 25 Pa. Code § 245.421 (relating to performance standards for new underground storage tank systems); 25 Pa. Code § 245.434 (relating to repairs allowed); 25 Pa. Code § 245.435 (relating to reporting and recordkeeping); 25 Pa. Code § 245.444 (relating to methods of release detection for tanks); and 25 Pa. Code § 245.451 (relating to temporary removal from service (out-of-service)).