A202601 NOPV Close Out

Idaho Public Utilities Commission Brad Little,Governor
P.O.Box 83720, Boise,ID 83720.0074 Edward Lodge,President
�-� John R.Hammond,Jr.,Commissioner
Dayn Hardie,Commissioner
June 25, 2026, Report#A202601
Ryan Bean, PE
Director, Natural Gas
Avista Corporation
1411 Mission Ave, MSC-6
P.O. Box 3727
Spokane, WA 99220-3727
Dear Mr. Bean:
RE: Avista Corporation (Avista) Response dated May 271h, 2026,to the Idaho Public Utilities
Commission's (IPUC) Notice of Probable Violation (NOPV) dated April 27th, 2026
(A202601)
IPUC Staff accepts Avista Corporation's response and the corrective actions.
Thank you for the cooperation and support of your staff during this process and for your
continued interest in pipeline safety. Staff consider the original Notice of Probable Violation to
be invalid after follow-up with Avista staff and further review of Avista's enhanced dithiazine
prevention, monitoring, and mitigation programs. This Notice of Probable Violation is closed.
Should you have any questions regarding this action or pipeline safety, you may contact me or
call our office at 208-334-0333.
Sincerely,
////4--
Jeff Brooks
208-507-8911
[e-mail]
Pipeline Safety, Program Manager
Idaho Public Utility Commission
11331 W.Chinden Blvd.Ste 201-A Boise ID 83714
Telephone:[phone] Facsimile:[phone]
AVISTA LEWISTON FIELD AUDIT PROBABLE VIOLATIONS LETTER— Page 1 of 1