11-0252
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B. Timing: If impractical to have these tests conducted prior to installation they can be run concurrently during and following installation, but Nicor Gas shall complete testing and provide a detailed written report of test findings to the Commission no later than five (5) years from the grant of this state waiver. Nicor Gas shall make available interim test results to the Commission as they become available.
C. Long-Term Design and Integrity Testing of in-situ pipe
i. Design: In designing the pipeline, Nicor Gas shall consider and have procedures addressing all pipeline risk factors, including, but not limited to: pressure and temperature cycling, and repairs under a range of ambient conditions; long-term performance of composite material and mechanical fittings; cathodic protection of any metallic appurtenances; fiber migration over time; long term failure prediction of line pipe; risk of inter-lamellar or inter-layer intrusion of gas and the possible effect on integrity; and methods for assessment of buried or excavated pipe.
ii. Long Term Integrity Testing: Nicor Gas shall:
a. Schedule and perform five (5) inspections during which nondestructive and destructive testing evaluation must be performed on the pipe material after installation. Non-destructive testing shall focus on the composition and degradation of the pipe material and destructive testing shall include a hydrotest to burst pressure. An example of non-destructive method of inspection could include a visual examination of the Smart Pipe® and connector ends, in addition to leak surveys. Permanent markings on the connector interface with the Smart Pipe® would be periodically re-measured at prescribed intervals. If destructive testing of the actual in-situ state waiver segments is impractical, destructive testing can be performed by other means through representative segments subject to similar operational conditions, such as through installation of a test leg.
b. At a minimum, Nicor Gas shall perform inspections and tests at 1, 2.5, 5, 10, and 20 year intervals after installation.
c. For each destructive testing, remove a minimum ten (10) foot pipe segment for inspection during each inspection.
d. Perform removal, replacement, and installation of pipe and fittings, and other actions related to the removal of test
