ICIS-AIR PA000830537

XTO ENERGY INC/AK STEEL C, Butler, PA: Clean Air Act compliance record, inspections, violations, penalties

OperatingOperating status
Minor sourceEmissions classification
No Violation IdentifiedCurrent violation status, as filed
3Compliance evaluations since January 1, 2017
0High-priority violations since January 1, 2017
1Formal enforcement actions since January 1, 2017

XTO ENERGY INC/AK STEEL C is on EPA’s ICIS-AIR register at 267 SAWMILL RUN RD, Butler in Butler County, Pennsylvania: operating status operating, emissions classification minor source, current violation status “No Violation Identified”. Butler 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 5 events on file is a formal enforcement action dated December 13, 2024.
Its events on file run from October 16, 2018 through December 13, 2024.
Of the 1 formal enforcement action on file, 1 carries a filed penalty above zero. The largest on file is $4,000,000, filed December 13, 2024.
Of its 3 compliance evaluations on file, 2 are a full compliance evaluation.
The register holds 187 air-emissions sources in Butler County, Pennsylvania.

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

Identity

Facility as filed	XTO ENERGY INC/AK STEEL C
ICIS-AIR ID	PA000830537
EPA facility registry ID	110070386210
Operating status	Operating
Emissions classification	Minor source
Current violation status (HPV field)	No Violation Identified
Address	267 SAWMILL RUN RD, Butler, PA 16001-8653
County	Butler County
In a nonattainment county	Yes (EPA Green Book)
Industry (NAICS)	Oil and gas extraction (NAICS 2111)
SIC code	1311
EPA region	03

Programs and pollutants

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

Compliance evaluations

3Evaluations since January 1, 2017
2Full compliance evaluations

Date	What EPA recorded	Agency	Programs
November 7, 2019	FCE On-Site	U.S. EPA	New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
November 20, 2018	PCE Off-Site	State	State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
October 16, 2018	FCE On-Site	U.S. EPA	Federally-Enforceable State Operating Permit - Non Title V; New Source Performance Standards

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 PA000830537 since January 1, 2017.

Enforcement and penalties

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

Date	What EPA recorded	Agency	Penalty, as filed
December 13, 2024	Civil Judicial Action	U.S. EPA	$4,000,000

Informal enforcement

Date	What EPA recorded	Agency
March 8, 2022	Notice of Violation	U.S. EPA

Stack tests

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

EPA’s stack test file holds no test at ICIS-AIR PA000830537 since January 1, 2017.

Watch XTO ENERGY INC/AK STEEL C

Privacy

Free from EPA: Detailed Facility Report, ECHO Notify (registry ID 110070386210).

Other air sources in Pennsylvania beside XTO ENERGY INC/AK STEEL C

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