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Snohomish County Requires an Upstream/Downstream Emissions Analyses for Proposed Pipeline Expansion

  • Written by Valley View Staff
The Snohomish County Planning Department has required Puget Sound Energy and the pipeline company Williams to complete upstream and downstream greenhouse gas emissions analyses for the proposed North Seattle Lateral Upgrade natural gas pipeline expansion in south Snohomish County.  The site of the proposed expansion is a 5.89 mile length of pipe, currently 8” diameter and being increased to 20”, running from east of highway 9 in Clearview to just west of Bothell Everett highway in Bothell.
 
The proposed expansion would result in a state-wide greenhouse gas emissions increase of 3-5%, and increase the size of the blast zone along the pipeline route to 150 feet.  During construction, 15 streams would be crossed, many of them fish bearing, including Little Bear Creek, Great Dane Creek, Tambark and Silver Creeks. These streams would be dammed for crossing, with construction lasting into the fall and salmon spawning season, negatively impacting our region’s already declining Chinook, Coho, and Sockeye salmon.  The proposed pipeline also crosses a the South Whidbey fault line, and if the project were finished, pipeline would be tested by filling it with over 400,000 gallons of municipal water, which would then be dumped into a local field.
 
A coalition of local groups, including 350 Eastside, 350 Seattle, Mothers Out Front Puget Sound, Protectors of the Salish Sea, Pilchuck Audubon, Sierra Club, the Orca Conservancy, and others, have raised safety, climate, and environmental concerns over the project with the county over the past several months. 
 
PSE and Williams now will need to submit the additional required information to the County before permitting can proceed. Questions can be addressed to Sara Papanikolaou, Climate Organizer at This email address is being protected from spambots. You need JavaScript enabled to view it. or 206-962-9047.

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