PHMSA 21-225737
UCAR PIPELINE LLC — Integrity Assurance Notification
ALTERNATIVE PIPE SAMPLINGFYI: Southwest Region, For OpID 19892 please reference Unit 4164 Pursuant to 49 CFR 192.18, Dow is submitting this notification with intent to use ILI for the purposes of measuring material properties and attributes to delineate populations as described in the attached procedure PIM 1.58 Measuring Material Properties and Attributes Using ILI, when verifying pipeline material properties and attributes in accordance with §192.607(e) (5). Dow is using ILI to delineate populations as permitted in FAQ 21 and ILI to measure material properties and attributes as permitted in FAQ 22. Dow intends to use this approach as part of its §192.607 process, PIM-1.01a Verification of Pipeline Materials and Attributes.#