Clean Air Act stationary source · ICIS-AIR AR0000000511900532
UNION PACIFIC RAILROAD COMPANY - NORTH LITTLE ROCK, North Little Rock, AR: Clean Air Act compliance record, inspections, violations, penalties
- OperatingOperating status
- Synthetic minor sourceEmissions classification
- Violation w/in 1 YearCurrent violation status, as filed
- 4Compliance evaluations since January 1, 2017
- 0High-priority violations since January 1, 2017
- 1Formal enforcement actions since January 1, 2017
UNION PACIFIC RAILROAD COMPANY - NORTH LITTLE ROCK, at 800 PIKE AVENUE, North Little Rock in Pulaski County, Arkansas, is an operating synthetic minor 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 “Violation w/in 1 Year”. 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 filed | UNION PACIFIC RAILROAD COMPANY - NORTH LITTLE ROCK |
|---|---|
| ICIS-AIR ID | AR0000000511900532 |
| EPA facility registry ID | 110007229409 |
| Operating status | Operating |
| Emissions classification | Synthetic minor source |
| Current violation status (ICIS-AIR high-priority violation field) | Violation w/in 1 Year |
| Address | 800 PIKE AVENUE, North Little Rock, AR 72114 |
| County | Pulaski County |
| In a nonattainment county | No (EPA Green Book) |
| Industry (NAICS) | Rail transportation (NAICS 4821) |
| SIC code | 4011 |
| EPA region | 06 |
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 UNION PACIFIC RAILROAD COMPANY - NORTH LITTLE ROCK 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
- 4Evaluations since January 1, 2017
- 4Full compliance evaluations
| Date | What EPA recorded | Agency | Programs |
|---|---|---|---|
| December 2, 2025 | FCE On-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| January 24, 2023 | FCE On-Site | State | New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| October 29, 2019 | FCE On-Site | State | 40 CFR Part 63 Area Sources; MACT Standards (40 CFR Part 63); State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| January 23, 2018 | FCE On-Site | State | 40 CFR Part 63 Area Sources; MACT Standards (40 CFR Part 63); State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
Violations
- 1Violation 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.
| Date | What EPA recorded | Agency | Programs |
|---|---|---|---|
| July 31, 2026 | Earliest FRV determination | State | State or Local rule or regulation that is not federally-enforceable; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
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.
| Date | What EPA recorded | Agency | Penalty, as filed |
|---|---|---|---|
| August 20, 2026 | Administrative Order | State | $1,600 |
Informal enforcement
| Date | What EPA recorded | Agency |
|---|---|---|
| February 20, 2026 | Notice of Violation | State |
| March 4, 2020 | Warning Letter | State |
Stack tests
- 0Stack tests since January 1, 2017
- 0Recorded as failed
EPA’s stack test file holds no test at ICIS-AIR AR0000000511900532 since January 1, 2017.
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 110007229409 there.
Nearby on the register
- Air-emissions sources in Pulaski County
- Every source record in Pulaski County, A to Z
- Air-emissions sources in Arkansas
- Every source record in Arkansas, A to Z
Figures from EPA’s ICIS-AIR download, loaded September 14, 2026.