Any portion of a metallic tank or piping system in contact with the soil must be protected from corrosion. A cathodic protection system must be designed by a corrosion expert, installed and maintained in accordance with recognized standards of design. One of the following codes of practice shall be used to comply with this section:
- (1) NACE International Test Method TM 0101, "Measurement Techniques Related to Criteria for Cathodic Protection of Underground Storage Tank Systems";
- (2) NACE International Test Method TM 0497, "Measurement Techniques Related to Criteria for Cathodic Protection on Underground or Submerged Metallic Piping Systems";
- (3) Steel Tank Institute Recommended Practice R051, "Cathodic Protection Testing Procedures for STI-P3®Underground Storage Tanks";
- (4) NACE International Standard Practice SP 0169, "Control of External Corrosion on Underground or Submerged Metallic Piping Systems"; or
- (5) NACE International Standard Practice SP 0285, "External Control of Underground Storage Tank Systems by Cathodic Protection.
Added at 21 Ok Reg 2036, eff 7-1-04
Amended at 22 Ok Reg 1730, eff 7-1-05
Amended at 23 Ok Reg 2261, eff 7-1-06
Amended at 25 Ok Reg 1867, eff 7-1-08
Amended at 32 Ok Reg 780, eff 8-27-15
Amended at 34 Ok Reg 935, eff 9-11-17