Clean Air Act stationary source · ICIS-AIR PA000840089
EXPAND OPERATING LLC/N-24 BUCKHORN WELL PAD, Montrose, PA: Clean Air Act compliance record, inspections, violations, penalties
- OperatingOperating status
- Synthetic minor sourceEmissions classification
- No Violation IdentifiedCurrent violation status, as filed
- 12Compliance evaluations since January 1, 2017
- 0High-priority violations since January 1, 2017
- 1Formal enforcement actions since January 1, 2017
EXPAND OPERATING LLC/N-24 BUCKHORN WELL PAD, at 1846 VALLEY VIEW RD, Montrose in Susquehanna County, Pennsylvania, 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 “No Violation Identified”. Susquehanna 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
| Facility as filed | EXPAND OPERATING LLC/N-24 BUCKHORN WELL PAD |
|---|---|
| ICIS-AIR ID | PA000840089 |
| EPA facility registry ID | 110071894139 |
| Operating status | Operating |
| Emissions classification | Synthetic minor source |
| Current violation status (ICIS-AIR high-priority violation field) | No Violation Identified |
| Address | 1846 VALLEY VIEW RD, Montrose, PA 18801-6783 |
| County | Susquehanna County |
| In a nonattainment county | Yes (EPA Green Book) |
| Industry (NAICS) | Oil and gas extraction (NAICS 2111) |
| SIC code | 1311 |
| EPA region | 03 |
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 EXPAND OPERATING LLC/N-24 BUCKHORN WELL PAD 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
- 12Evaluations since January 1, 2017
- 2Full compliance evaluations
| Date | What EPA recorded | Agency | Programs |
|---|---|---|---|
| July 29, 2026 | FCE On-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| June 16, 2026 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| April 20, 2026 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| January 30, 2026 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| September 30, 2025 | FCE On-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| September 16, 2025 | PCE On-Site Monitoring/Sampling | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| September 15, 2025 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| April 30, 2025 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| November 4, 2024 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| October 3, 2023 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| May 31, 2023 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| May 28, 2021 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
Violations
- 2Violation 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 |
|---|---|---|---|
| October 3, 2023 | Earliest FRV determination | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| May 31, 2023 | Earliest FRV determination | State | 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 1, 2024 | Administrative Order | State | $129,110 |
Informal enforcement
| Date | What EPA recorded | Agency |
|---|---|---|
| October 3, 2023 | Notice of Violation | State |
| October 3, 2023 | Notice of Violation | State |
Stack tests
- 7Stack tests since January 1, 2017
- 0Recorded as failed
| Date | What EPA recorded | Agency |
|---|---|---|
| May 29, 2026 | Pass | State |
| June 18, 2025 | Pass | State |
| July 16, 2024 | Pass | State |
| August 2, 2023 | Pass | State |
| August 29, 2022 | Pass | State |
| August 17, 2021 | Pass | State |
| July 23, 2020 | Pass | State |
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 110071894139 there.
Nearby on the register
- Air-emissions sources in Susquehanna County
- Every source record in Susquehanna County, A to Z
- Air-emissions sources in Pennsylvania
- Every source record in Pennsylvania, A to Z
Figures from EPA’s ICIS-AIR download, loaded September 14, 2026.