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Letter

Filing PG - 080292

Company: Northwest Natural Gas Company
DBA:
Filing Type: Staff Investigation
Case Status: Closed
Dates (Opened & Effective): 02/15/2008 & 12/26/2024
Summary: Northwest Natural is seeking an exemption from the provisions of WAC 480-93-100, relating to the operation of certain critical valves during regularly scheduled maintenance activities.

 

Filter by document type: All | Letter | Open Meeting Memo | Order - Final
Document Type Date Description
Letter 12/15/2008 PBV letter dated December 15, 2008. (scanned & posted)
Letter 09/04/2008 Dave Danner letter to Jeffrey D. Wiese, Pipeline and Hazardous Materials Safety Administration, RE: Northwest Natural Gas final report on PBV Valve Project. (scanned & posted)
Letter 07/23/2008 Letter to Anne Soiza from Bruce L. Paskett, Northwest Natural Gas, RE: Final report on PBV Valve Project. (scanned & posted)
Letter 07/07/2008 Letter to Carole Washburn from Jeffrey D. Wiese, Pipeline and Hazardous Materials Safety Administation, RE: Response to UTC letter dated March 14, 2008. (scanned & posted)
Letter 05/15/2008 Letter to Anne Soiza from Bruce L. Paskett, Northwest Natural Gas Co., RE: Status Report of PBV Valve Project for April 2008. (scanned & posted)
Letter 03/14/2008 Carole Washburn letter to Jeffrey D. Wiese, Pipeline and Hazardous Materials Safety Administration, RE: NWN's Waiver Request. (scanned & posted)
Letter 02/27/2008 Letter to Dave Lykken from Bruce L. Paskett, Northwest Natural Gas, RE: Request for waiver on O & M of 4" - 12" PBV Valves. (scanned & posted)