InstituteUnderground Storage TanksIn Depth Sub Topics (Level 4)Focus AreaTank OperatorsEnglishAnalysisTank SystemsTank SystemsUSA
Inspection frequency, criteria, and records
['Tank Systems']

- All cathodic protection systems must be tested within six months of installation and at least every three years thereafter.
All underground storage tank (UST) systems equipped with cathodic protection systems must be inspected for proper operation by a qualified cathodic protection tester in accordance with the following requirements:
- Frequency: All cathodic protection systems must be tested within six months of installation and at least every three years thereafter or according to another reasonable time frame established by the implementing agency; and
- Inspection criteria: The criteria that are used to determine that cathodic protection is adequate must be in accordance with a code of practice developed by a nationally recognized association.
Records
For UST systems using cathodic protection, records of the operation of the cathodic protection must be maintained (in accordance with 280.34) to demonstrate compliance with the performance standards. These records must provide the following:
- The results of the last three inspections required in paragraph (c) of 280.31; and
- The results of testing from the last two inspections required in paragraph (b) of 280.31.