An owner, an operator, and a person in charge of an AST system with a field-erected AST shall:

1. A. Maintain the records required under this chapter at the oil storage facility or oil handling facility, or another a readily accessible location;
2. B. Provide the records to the Department upon request;

3. C. Retain the following records for a minimum of 5 years:

   1. (1) Records of periodic visual inspections conducted in accordance with Regulation .11B of this chapter;
   2. (2) Records of annual normal and emergency vent inspections and cleaning conducted in accordance with Regulation .11D of this chapter;
   3. (3) Inventory control records;
   4. (4) Overfill prevention equipment testing records;
   5. (5) Release detection records;
   6. (6) Secondary containment dike drainage logs;
   7. (7) Storage tank gauging device calibration records; and
   8. (8) Testing records for aboveground and underground piping; and

4. D. Retain the following AST system records for the operational life of an AST system and for at least 5 years after an AST system has been permanently closed in accordance with Regulation .12 of this chapter:

   1. (1) Construction records, including records of:

      1. (a) The AST name plate information;
      2. (b) The original as-built specifications and drawings and any modifications made to the AST system during the operational life of the AST system;
      3. (c) Applicable manufacturer’s documentation for ancillary equipment;
      4. (d) Tests conducted upon completing an installation or repair of an AST system component, including hydrostatic testing and pressure tightness testing;
      5. (e) Material tests and analyses, including secondary containment dike permeability tests;
      6. (f) Tank strapping record; and
      7. (g) The names of the companies performing construction activities and a description of the work performed;

   2. (2) Cathodic protection system inspections records for impressed current and galvanic systems, including records of:

      1. (a) Cathodic protection system design description;
      2. (b) Inspection findings and conclusions;
      3. (c) Recommendations; and
      4. (d) Testing and repair records;
   3. (3) A complete copy of each final formal inspection report;
   4. (4) A complete copy of each ultrasonic thickness inspection report;
   5. (5) Records of AST system repairs and alteration history, including names of companies completing repair work;
   6. (6) Records of secondary containment dike testing and evaluation;
   7. (7) Records of spills, releases, and discharges and written reports of the occurrences required by COMAR 26.10.01.05E; and
   8. (8) A closure report for an AST system permanently closed in accordance with Regulation .12 of this chapter.

Authority: Environment Article, §§4-401—4-403, 4-405, 4-406, 4-408, 4-410—4-412, 4-415-1—4-418, 4-501, and 4-502, Annotated Code of Maryland

Effective date: June 13, 2022 (49:12 Md. R. 642)