ICIS-AIR ID0000001600100094

NORTHWEST PIPELINE LLC BOISE, Boise, ID: Clean Air Act compliance record, inspections, violations, penalties

OperatingOperating status
Minor sourceEmissions classification
No Violation IdentifiedCurrent violation status, as filed
7Compliance evaluations since January 1, 2017
0High-priority violations since January 1, 2017
0Formal enforcement actions since January 1, 2017

NORTHWEST PIPELINE LLC BOISE is on EPA’s ICIS-AIR register at 28001 SOUTH ORCHARD ACCESS RD, Boise in Ada County, Idaho: operating status operating, emissions classification minor source, current violation status “No Violation Identified”. Ada County is on EPA’s Green Book list of areas that do not meet a national air quality standard.

What stands out

The newest of the 11 events on file is a compliance evaluation dated May 13, 2025.
Its events on file run from May 1, 2018 through May 13, 2025.
Of its 7 compliance evaluations on file, 3 are a full compliance evaluation.
The register holds 299 air-emissions sources in Ada County, Idaho.

Every line is computed by formula from the record’s stored figures; nothing is estimated.

Identity

Facility as filed	NORTHWEST PIPELINE LLC BOISE
ICIS-AIR ID	ID0000001600100094
EPA facility registry ID	110055557437
Operating status	Operating
Emissions classification	Minor source
Current violation status (HPV field)	No Violation Identified
Address	28001 SOUTH ORCHARD ACCESS RD, Boise, ID 83716
County	Ada County
In a nonattainment county	Yes (EPA Green Book)
Industry (NAICS)	Pipeline transportation (NAICS 4862)
SIC code	4922
EPA region	10

Programs and pollutants

The program, pollutant and Title V files are not loaded: what this page covers.

Compliance evaluations

7Evaluations since January 1, 2017
3Full compliance evaluations

Date	What EPA recorded	Agency	Programs
May 13, 2025	PCE On-Site	U.S. EPA	MACT Standards (40 CFR Part 63); New Source Performance Standards
April 14, 2022	FCE On-Site	State	Title V Permits
April 12, 2022	PCE On-Site	State	Title V Permits
May 4, 2020	FCE Off-Site	State	Title V Permits
April 29, 2020	PCE Off-Site	State	Title V Permits
May 22, 2018	FCE On-Site	State	Title V Permits
May 1, 2018	PCE On-Site	State	Title V Permits

Violations

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

What high-priority and federally reportable violations mean.

EPA’s violation history file holds no violation for ICIS-AIR ID0000001600100094 since January 1, 2017.

Enforcement and penalties

0 of the formal enforcement actions carry a penalty filed above zero. How a penalty is shown.

Informal enforcement

EPA’s informal action file holds no notice or warning for ICIS-AIR ID0000001600100094 since January 1, 2017.

Stack tests

4Stack tests since January 1, 2017
0Recorded as failed

Date	What EPA recorded	Agency
April 8, 2025	Pass	State
April 13, 2023	Pass	State
April 6, 2022	Pass	State
October 5, 2018	Pass	State

Watch NORTHWEST PIPELINE LLC BOISE

Privacy

Free from EPA: Detailed Facility Report, ECHO Notify (registry ID 110055557437).

Other air sources in Idaho beside NORTHWEST PIPELINE LLC BOISE

EPA ICIS-AIR download, loaded September 14, 2026.