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Clean Air Act stationary source · ICIS-AIR MT0000003010500001

WILLISTON BASIN - FORT PECK STATION, Nashua, MT: Clean Air Act compliance record, inspections, violations, penalties

WILLISTON BASIN - FORT PECK STATION, at 23 MDU RD, Nashua in Valley County, Montana, 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”. 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

Facility as filedWILLISTON BASIN - FORT PECK STATION
ICIS-AIR IDMT0000003010500001
EPA facility registry ID110020372103
Operating statusOperating
Emissions classificationMajor source
Current violation status (ICIS-AIR high-priority violation field)No Violation Identified
Address23 MDU RD, Nashua, MT 59248
CountyValley County
In a nonattainment countyNo (EPA Green Book)
Industry (NAICS)Pipeline transportation (NAICS 4862)
EPA region08

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 WILLISTON BASIN - FORT PECK STATION 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

DateWhat EPA recordedAgencyPrograms
September 18, 2025FCE Off-SiteStateMACT Standards (40 CFR Part 63); State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
April 5, 2023FCE Off-SiteStateMACT Standards (40 CFR Part 63); State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
April 26, 2021FCE Off-SiteStateMACT Standards (40 CFR Part 63); State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards

Violations

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 MT0000003010500001 since January 1, 2017.

Enforcement and penalties

0 formal enforcement actions since January 1, 2017, 0 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

EPA’s informal action file holds no notice or warning for ICIS-AIR MT0000003010500001 since January 1, 2017.

Stack tests

The newest 50 of 56.

DateWhat EPA recordedAgency
June 25, 2026PassState
November 25, 2025PassState
November 25, 2025PassState
July 21, 2025PassState
May 14, 2025PassState
January 27, 2025PassState
October 24, 2024PassState
October 24, 2024PassState
September 23, 2024PassState
July 19, 2024PassState
January 5, 2024PassState
October 18, 2023PassState
October 18, 2023PassState
July 6, 2023PassState
July 6, 2023PassState
March 24, 2023PassState
November 16, 2022PassState
November 16, 2022PassState
July 8, 2022PassState
June 22, 2022PassState
June 22, 2022PassState
January 25, 2022PassState
January 25, 2022PassState
October 22, 2021PassState
September 27, 2021PassState
September 27, 2021PassState
June 11, 2021PassState
June 11, 2021PassState
December 31, 2020PassState
December 14, 2020PassState
December 14, 2020PassState
June 1, 2020PassState
June 1, 2020PassState
June 1, 2020PassState
December 12, 2019PassState
December 12, 2019PassState
December 12, 2019PassState
May 31, 2019PassState
May 31, 2019PassState
May 31, 2019PassState
May 30, 2019PassState
December 21, 2018PassState
November 27, 2018PassState
November 27, 2018PassState
June 22, 2018PassState
June 11, 2018PassState
June 11, 2018PassState
December 19, 2017PassState
December 19, 2017PassState
December 19, 2017PassState

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.

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How we handle your data → Privacy

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 110020372103 there.

Nearby on the register

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