Intermountain Gas Twin Falls Field

Idaho PUC Pipeline Safety Inspection Summary
Inspector(s): Ulmer/Perkins/Russo I Date(s): jJun 10-13, 201
Company/Owner: Intermountain Gas Company Unit/OPID: I Twin Falls/08160
Inspection Type&Time (1 day, 0.5 day) I Total Inspection Days:1 14
Standard: 12 Construction:� Training: F__� (T)(D) Integrity Management: EJ Incident: El
M/M: = Follow-up: OQ: F1 Damage Prevention: D&A:
Inspection Summary
Audit consisted of inspecting field installed equipment and operator qualification for the Twin Falls, Idaho
inspection units. Records and procedures for all Idaho Intermountain Gas Units were inspected in February
2019 at the Intermountain Gas Company(IGC) headquarters in Boise, Idaho.
June 7, 2019: (1 Standard Prep)
Prepared for the field audit of Intermountain Gas Company's natural gas distribution pipeline for the Twin Falls,
Idaho inspection unit. Reviewed operators operations/maintenance manuals, emergency manuals, operator
qualification procedures and the previous years audit results. Prepared PHMSA Form 2 and IPUC Forms and
worksheets for the inspection.
June 10-13,2019: (10 Standard, 1 OQ and 1 Construction)
Met with IGC company representatives in the Twin Falls district office for in-brief and to begin field audit.
Regulator Stations 50007, 50012, 50013, 50016, 50030, 50031 (Odorizer), 50032, 50033 (Odorizer), 50036,
50037, 50038, 50039, 50040, 50041, 50042, 50043, 50044, 50072, 50107, 50108, 50109, 50110, 50111, 50112,
50113, 50114, 50115, 50116, 50117, 50118, 50119, 50120, 50121, 50122, 50123, 50124, 50132, 50150, 50152,
50153, 50154 (Odorizer) , 50155, were inspected for proper operating parameters, regulator lock-up, relief
device operation, cathodic protection pipe-to-soil readings, pipe-to soil interface wrap protection, station
warning signs and right-of-way clearances.
Sixteen casing-to-carrier isolation checks,five cathodic protection rectifiers, one pipeline patrol, and twelve
emergency isolation valves were checked for proper operation, observations listed below.
An operator qualification inspection was performed on Garret Lammers and Jason Nitz IGC employees that
were performing valve maintenance: inspection/partial operation. Both performed the task in a satisfactory
manner.
An IPUC Form 3 (exit interview) was performed following the district inspection with Brack McMurtrey
(Operations Manager), Kelley Gorringe (Compliance/Audit Specialist) of Intermountain Gas Company.
Observations:
Not Plumbed for lock-up: Reg Station: 50110.
Failed lock-up: Reg Stations: 50112, 50114, and 50038 corrected on the spot.
Reg station: 50132 relief would not reseat due to issue with block valve bleeding by, corrected on the spot.
Reg station: 50109 line markers were laying on the ground and not visible and needed to be installed properly.
IPUC Form 1

Idaho PUC Pipeline Safety Inspection Summary
A Dasco crew was installing a new 8" steel loop in Ketchum, Idaho. Areas observed during this project were:
trenching, installing rockshield, use of shoring boxes, pipe jeeping, use of spotters, line locating and pipe
handling.
June 14, 2019: (1 Standard Post)
Completed forms and typed report.
Attached:
IPUC Form 1, Inspection Summary
IPUC Form 3, Exit Interview
IPUC Field Equipment Status Worksheets
PHMSA IA Question Set, Field Inspection Portion (not attached but in IA database)
PHMSA Form 15, (OQ) Field Inspection Forms
Corrective Action Required: Yes No X
Follow-up Required: by (date): Yes No X
Close-out Letter Issued: Yes No
Inspector (Lead): Date:
Bruce Perkins 14-Jun-19
Reviewer: Date:
Darrin Ulmer ( l
IPUC Form 1