Avista 250521-22 Moscow-Lewiston IPUC Form 4 Avista Construction Construction

IPUC Construction Inspection
Inspector(s): Perkins Date(s): 250521-22
Company/Owner: Avista Utilities Unit/OPID: 31232
Address: Reg station#343 (Moscow) and 5t' and City/District: Moscow/Lewiston
Beachy (Lewiston) adjacent to Reg station#403
Contractor/Job #: W/O # 1036308825- Foreman: Operator Supervisor:
Lewiston Trevor Salonen On-Site: N
Job Description: Weld CP bonding wire (Moscow), System Type: 0 GD
Teardown/rebuild 4" steel plug valve.
One-Call Ticket: 2025192739 (Lewiston) Total Inspection Days: 1.5
Tasks: Procedure# Rating Comments
1. Materials-Handling, Storage, Labeling 3.12-3.13 SAT
2. Trenching/Boring-Depth, Clearance 3.15 SAT Vacuum truck
3. Bedding/Backfill 3.15 SAT
4. Pipe Installation (Tracer Wire) 3.13 N/A
5. Valve Installation 2.14 N/A
6. Coating Condition 2.12 SAT
7. Manuals-Field Procedures, O & M 1.4 SAT
8. Testing-Pressure, Duration, Type 2.12-13/3.18 N/A
9. OQ Qualifications 4.31 SAT
10. Casing Seal/Installation 3.42 N/A
11. Service Line Installation 3.16 N/A
12. Tie-In/Hot Tapping 3.32 N/A
13. Meter Location/Regulator Testing 2.22 N/A
14. Equipment Calibration Verification 5.11,14,21 N/A
15. EFV Installation 3.16 N/A
16. MAOP 4.15 N/A
17. Purge 3.17 N/A
18. Safety Equipment GESH 4 SAT Extinguisher
19. Abandonment 5.16 N/A
20. Line Locating 4.13 SAT
21. Plastic Pipe 3.23-25 N/A
- Joiner(s) Qualified
- Fusion Tools
- Heat Plate

IPUC Construction Inspection
- Joining Procedure
SAT Welded on CP grounding tabs
22. Steel Pipe
-Welder(s) Qualified 3.22
Pipe/Coating—Inspected/Repaired 2.12
- Cathodic Protection 2.32
-Non-Destructive Testing 3.12
-Welding Procedures
- Removal of asbestos wrap
- Exothermic Welding
Additional Comments:
- Observed Pressure Control Technicians Salonen and Degroat weld tabs to the pipe and install a jumper
wire at Regulation Station#343 to address the cathodic protection deficiency on a 4-foot section of 2-inch
steel pipe. Following the welding process, the piping was painted, and CP measurements were taken,
confining a reading of-1.29, ensuring the deficiency was corrected
-Traveled to Lewiston, Idaho,to observe the teardown and rebuild of the EOP valve located at 5th and
Beachy Street, adjacent to Regulation Station#403. The crew utilized a vacuum truck to excavate the
valve, after which the valve packing nut was removed, cleaned, greased, and reinstalled to enhance
operational functionality and pipe was wax wrapped.
Corrective Action Required: ❑ Yes No
Compliance Letter#: NA
Lead Inspector: P 'ns
Date: Reviewer: Date:
250522 1-5 05 k%
Signature: Signature: