Compliance Verification Activity Report 1516-440 – NOVA Gas Transmission Ltd.

Type of Compliance Verification Activity: Field Inspection

Activity #: 1516-440
Activity start: 07/12/2015
Activity End: 09/12/2015

Related Activity Numbers: 1516-446 (Environment) and 1516-455 (Safety)

Inspection Officer Number(s): 2160

Incident #:
Landowner Complaint File #:

Company: NOVA Gas Transmission Ltd.

Facility Name(s): Cutbank River Lateral Loop No. 2 (Pinto Creek Section) and Musreau Lake North Receipt Meter Station

Province(s): Alberta

Theme(s): Integrity Management

Compliance Tools Used:

Purpose

This activity was undertaken to verify compliance with the following regulatory requirements.

 X  NEB Act

 X  Onshore Pipeline Regulations

 X  CSA Standard Z662 Oil and Gas Pipeline Systems

    Other:

    Electricity Regulations

    Processing Plant Regulations

    Pipeline Crossing Regulations Part I

    Pipeline Crossing Regulations Part II

Regulatory Instrument

Order XG-N081-007-2015, as amended

Observations & Discussion

Observations & Discussion
Date visited Location Theme Compliance Confirmed
07-Dec-15 Day #1: at NGTL's project construction office in Grande Prairie Integrity Management Yes

Observations

After attending a site Safety orientation and the Environment presentation, the NEB inspectors conducted the inspection opening meeting with NGTL representatives and verified the following documents:

  • Senior Welding Reports which provides the cumulative record for welds and repairs since the beginning of the construction. The NEB inspectors noted an
    acceptable overall repair rate;
  • Welding Inspection Onboarding Sign-in Sheets for documents related to welding inspectors’ certifications and welders’ evaluations and qualifications;
  • Officially signed copies of the Welding Procedure Data Sheets and Procedure Qualification Records;
  • Welding Parameters Reports;
  • Welding-Visual Inspection Reports;
  • Welding Books (containing relevant procedures, sections of CSA Z662-15, NGTL technical manuals, etc.);
  • Non-destructive Testing (NDT) Daily Reports. All Mainline welds are subject to 100% UT inspection and Fabrication welds are subject to 100% radiographic
    inspection.
Observations & Discussion
Date visited Location Theme Compliance Confirmed
08-Dec-15 Day #2: Project construction office in Grande Prairie and construction sites Integrity Management Yes

Observations

The NEB inspectors and the NGTL representatives attended the Inspectors Daily Meeting, at the NGTL project office Located in Clairmont, Alberta, to discuss the daily activities related to the completed field works, the planned activities for the day, and any potential safety issues and mitigation measures. NEB inspectors then attended the Contractors Daily Meeting also attended by the NGTL project Manager, again, to discuss the details of ongoing works and any associated safety concerns (i.e. hazards related to equipment, vehicles, weather conditions and work processes).
After the meetings, the NEB inspectors inspected the following activities at the construction sites:

  • Tie-in at Kilometer Post (KP) 31.984: The tie-in joint welding was in progress. The pipe was labelled with the technical specifications that were consistent with the project construction Order AO-001-XG-N081-007-2015. NGTL's welding inspector was present on site and he confirmed that welding parameters and full circumferential welds are regularly verified at minimum four times each day. The NEB inspectors verified that the accuracy of the NGTL welding procedures in use were as approved for the project. The NEB inspectors also verified the welding parameters recorded which were in accordance with the welding procedure datasheets located on site. The welds were preheated and ground between passes as per the procedure requirements.
  • Pipeline Survey at KP 28.250: A crew from Midwest Survey was surveying as-built pipeline information such as girth weld GPS coordinates, depth of cover and data corresponding to weld numbers and pipe numbers before backfilling.
  • UT testing at KP 20.400: Several crews from TEAM Industrial Services (directly contracted by NGTL for all NDT activities) were working at various locations on the project as required (tie-ins, Poor boy welding and mainline welding). The project NDT Inspection Scope, relevant copies of CSA Z662-15 and the NGTL procedure for Mechanized Ultrasonic Examination of Pipeline Girth Welds were on the site available to the testing technicians.
  • Mainline Welding at KP 18.075: Two of NGTL's welding inspectors were present on site (one at the Front End and the other at the Back End). They confirmed that welding parameters for all passes are being taken at least once in every 20 welds.
  • Lowering-in and Holiday detection (Jeeping) at KP 27.600: The NEB inspectors inspected the lowering-in activity of a welded and coated pipe segment of several hundred meters. Workers were taking adequate measures to assure the safety of personnel and the integrity of the pipeline segment during the operation. The jeeping of the entire segment, using a high voltage holiday detector was being concurrently completed as per NGTL’s procedures. This activity included the following:
    • The first jeeping of all Pipe coatings to find the existence of any holiday from transport and hauling;
    • The second jeeping of the entire Welded pipeline segment, except the portions above supportive wooden skids, within 24 hours of the lowering-in;
    • The third jeeping during the lowering process to specifically target the portions above supportive skids.
Observations & Discussion
Date visited Location Theme Compliance Confirmed
09-Dec-15 Day #3: Project construction office in Grande Prairie and construction sites Integrity Management Yes

Observations

The NEB inspectors attended the Inspectors Daily Meeting and then the Contractors Daily Meeting. The NEB Inspectors also verified NGTL’s Pipeline Construction Specification, which provides general technical specifications and references for all activities to be conducted as part of the project. After the meetings, the NEB inspectors inspected the following ongoing activities on the Right of Way:

  • Horizontal Road Bore at KP 28.700: The NEB inspectors verified that the Bore Plan for the completion of all similar bores at road and water crossings was onsite. Copies of required permits and crossing agreements were available on site.
  • Pipe Anchoring at KP 28.800: The operation was designed to maintain the pipeline at the required installation depth after backfill as buoyancy is an issue in this Geo-unstable area.
  • Mainline Welding at KP 20.700: The newly welded pipe had been placed on skids and with the use of an internal clamp, was being pieced together and welded. Two NGTL welding inspectors were present (one at the Front End and the other at the Back End). The Front End crew was conducting the root and hot passes (when required), using an internal clamp for proper pipe alignment. The hot pass crew would put in a hot pass (usual) or a hot fill if the root pass welders were putting in the hot pass (to allow the back end to catch up). The Back End crew was conducting fill and cap passes. The NEB inspectors verified records of welding parameters that were being taken at least once in every 20 welds.
  • Pipeline Coating Repair at KP 28.300: The NEB inspectors witnessed the conclusion of this girth weld coating repair work for a small holiday discovered during the inspection conducted by Somerville and Aecon’s coating inspector, who was on site. The project construction pipe is Fusion Bond Epoxy coated. However, river and road crossings have an additional abrasion resistant coating. Multi-component liquid epoxy coatings were being manually field applied on each completed field weld. At this site, the NEB inspectors noted that the coating technicians were using a full encirclement induction heater to heat the pipe and coating to be repaired in order to meet the established specifications under cold weather conditions. The same process was used for the Mainline and tie-in girth welds but with more coating material applied.
  • Horizontal Directional Drilling (HDD) at KP 5.100: The operation aimed to complete the approximate 700 meter of the Bald Mountain Creek crossing. Due to geo-technical issues (i.e. fracking/cracking in the soil), encountered during the process, NGTL changed the drilling dimensions. Both the depth and length of the HDD section have been increased. At the time of the inspection, the crew was preparing to pull the pipe through the bore.
Observations & Discussion
Date visited Location Theme Compliance Confirmed
09-Dec-15 General observations common to all sites (for days 2 and 3) Integrity Management Yes

Observations

The work site entrances indicated the name of companies and a number of safety warning signs. The workers were observed wearing proper personal protective equipment as required by the type of work. The excavation areas were fenced or delineated when applicable. Access and egress of open excavations were adequate at the time of inspection.

Compliance Summary

This notice reflects the observations of non-compliance with regulatory requirements or company commitments, made by the inspection officer during the compliance verification activity. If the corrective actions identified are implemented by the completion date, the matter is considered resolved. Any unresolved compliance matters will be addressed by the inspection officer and may be referred to NEB enforcement staff.

517 Tenth Avenue SW Calgary, Alberta  T2R 0A8
Telephone: 403-292-4800   Toll Free: 1-800-899-1265

 

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