PDFWAC 480-75-300
Leak detection.
(1) Pipeline companies must rapidly locate leaks from their pipeline. Pipeline companies must provide leak detection under flow and no flow conditions.
(2) Leak detection systems must be capable of detecting an eight percent of maximum flow leak within fifteen minutes or less.
(3) Pipeline companies must have a leak detection procedure and a procedure for responding to alarms. The pipeline company must maintain leak detection maintenance and alarm records.
[Statutory Authority: RCW 80.01.040, 80.04.060, 81.88.040. WSR 08-12-045 (Docket PL-070974, General Order R-548), § 480-75-300, filed 5/30/08, effective 6/30/08. Statutory Authority: RCW 80.01.040, 81.01.010, 81.88.060. WSR 07-09-001 (Docket PL-061026, General Order R-541), § 480-75-300, filed 4/4/07, effective 5/5/07. Statutory Authority: RCW 80.01.040 and 80.04.160. WSR 02-18-032 (Docket No. TO-000712, General Order No. R-500), § 480-75-300, filed 8/26/02, effective 9/26/02.]