Clean Air Act stationary source · ICIS-AIR WAPSC0005306100763

NORTHWEST PIPELINE LLC SNOHOMISH, Snohomish, WA: Clean Air Act compliance record, inspections, violations, penalties

• OperatingOperating status
• Major sourceEmissions classification
• No Violation IdentifiedCurrent violation status, as filed
• 29Compliance evaluations since January 1, 2017
• 0High-priority violations since January 1, 2017
• 1Formal enforcement actions since January 1, 2017

NORTHWEST PIPELINE LLC SNOHOMISH, at 22902 ECHO LAKE RD, Snohomish in Snohomish County, Washington, is an operating major source of air pollution on EPA’s ICIS-AIR register. EPA’s file records its current violation status (ICIS-AIR’s high-priority violation field) as “No Violation Identified”. Snohomish County is on EPA’s Green Book list of areas that do not meet a national air quality standard. The status and classification are as EPA’s facility file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the source’s current standing, quarter by quarter.

Identity

Cited to the EPA ICIS-AIR facility file (ECHO download).

Programs and pollutants

Velarion’s copy of EPA’s ICIS-AIR download does not include its program, pollutant and Title V certification files, so this page does not list the Clean Air Act programs NORTHWEST PIPELINE LLC SNOHOMISH is under or the pollutants it is permitted for. The programs each evaluation and violation below was recorded under are shown with it. EPA’s free Detailed Facility Report lists both.

Compliance evaluations

• 29Evaluations since January 1, 2017
• 8Full compliance evaluations

Violations

• 0Violation determinations since January 1, 2017
• 0Of them high-priority

A high-priority violation (HPV) is the most serious class of Clean Air Act non-compliance an agency records; a federally reportable violation (FRV) is the next step down. Each row is one determination as EPA’s violation history files it.

EPA’s violation history file holds no violation for ICIS-AIR WAPSC0005306100763 since January 1, 2017.

Enforcement and penalties

1 formal enforcement actions since January 1, 2017, 1 of them with a penalty filed above zero. Each penalty is shown as EPA’s formal action file states it; “Not stated” means the file gives no figure, and $0 is a disclosed zero.

Informal enforcement

Stack tests

• 22Stack tests since January 1, 2017
• 0Recorded as failed

Cited to the EPA ICIS-AIR evaluation, violation, stack test and enforcement files (ECHO download), events dated January 1, 2017 or later as loaded; up to 50 rows of each shown, newest first.

EPA publishes a free Detailed Facility Report for every source on ECHO: its compliance status quarter by quarter, its evaluations, and its violations, enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter EPA facility registry ID 110001916936 there.

Nearby on the register

• Air-emissions sources in Snohomish County
• Every source record in Snohomish County, A to Z
• Air-emissions sources in Washington
• Every source record in Washington, A to Z

Figures from EPA’s ICIS-AIR download, loaded September 14, 2026.