Clean Air Act stationary source · ICIS-AIR PA000817663

SNYDER BROS INC/ENSIGN COMPRESSOR STATION, Freeport, PA: Clean Air Act compliance record, inspections, violations, penalties

OperatingOperating status
Minor sourceEmissions classification
No Violation IdentifiedCurrent violation status, as filed
10Compliance evaluations since January 1, 2017
0High-priority violations since January 1, 2017
0Formal enforcement actions since January 1, 2017

SNYDER BROS INC/ENSIGN COMPRESSOR STATION, at 164 ISEMAN RD, Freeport in Armstrong County, Pennsylvania, is an operating 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”. Armstrong 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	SNYDER BROS INC/ENSIGN COMPRESSOR STATION
ICIS-AIR ID	PA000817663
EPA facility registry ID	110070131642
Operating status	Operating
Emissions classification	Minor source
Current violation status (ICIS-AIR high-priority violation field)	No Violation Identified
Address	164 ISEMAN RD, Freeport, PA 16229
County	Armstrong County
In a nonattainment county	Yes (EPA Green Book)
Industry (NAICS)	Oil and gas extraction (NAICS 2111)
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 SNYDER BROS INC/ENSIGN COMPRESSOR 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

10Evaluations since January 1, 2017
2Full compliance evaluations

Date	What EPA recorded	Agency	Programs
April 30, 2026	PCE Off-Site	State	MACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
April 23, 2025	PCE Off-Site	State	MACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
April 17, 2025	FCE On-Site	State	MACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
May 28, 2024	PCE Off-Site	State	MACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
June 6, 2023	PCE Off-Site	State	MACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
June 1, 2022	PCE Off-Site	State	MACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
April 28, 2021	PCE Off-Site	State	MACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
March 26, 2020	PCE Off-Site	State	MACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
November 19, 2019	FCE On-Site	State	MACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
March 31, 2019	PCE Off-Site	State	MACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards

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 PA000817663 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 PA000817663 since January 1, 2017.

Stack tests

5Stack tests since January 1, 2017
0Recorded as failed

Date	What EPA recorded	Agency
May 20, 2026	Pass	State
May 15, 2025	Pass	State
May 31, 2024	Pass	State
May 24, 2023	Pass	State
May 6, 2022	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 110070131642 there.

Nearby on the register

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