Wash. Admin. Code § 480-75-520
Whenever a pipe is exposed for any reason, the pipeline company must examine the pipe for evidence of mechanical damage or external corrosion, including inspecting the coating for evidence of damage. The pipeline company must evaluate all mechanical damage and repair it as necessary, in accordance with company repair procedures. The pipeline company must repair all coating damage before the pipeline is reburied. If the pipeline company finds active corrosion, general corrosion, or corrosion that has caused a leak, the pipeline company must investigate further to determine the extent of corrosion. The pipeline company must also inspect the pipeline prior to and during the backfilling of the exposed section. The pipeline company must prepare a report of this inspection and its results and maintain that report for the life of the pipeline.
Wash. Admin. Code § 480-75-520
Statutory Authority: RCW 80.01.040, 80.04.060, 81.88.040. 08-12-045 (Docket PL-070974, General Order R-548), § 480-75-520, filed 5/30/08, effective 6/30/08. Statutory Authority: RCW 80.01.040 and 80.04.160. 02-18-032 (Docket No. TO-000712, General Order No. R-500), § 480-75-520, filed 8/26/02, effective 9/26/02.