Velarion Records

Clean Air Act stationary source · ICIS-AIR OK0000004006900002

MILL CREEK DOLOMITE / MILL CREEK PLANT, Mill Creek, OK: Clean Air Act compliance record, inspections, violations, penalties

MILL CREEK DOLOMITE / MILL CREEK PLANT, at 9915 W AMOS CONLEY RD, Mill Creek in Johnston County, Oklahoma, 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”. 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 filedMILL CREEK DOLOMITE / MILL CREEK PLANT
ICIS-AIR IDOK0000004006900002
EPA facility registry ID110007735111
Operating statusOperating
Emissions classificationSynthetic minor source
Current violation status (ICIS-AIR high-priority violation field)No Violation Identified
Address9915 W AMOS CONLEY RD, Mill Creek, OK 74856
CountyJohnston County
In a nonattainment countyNo (EPA Green Book)
Industry (NAICS)Mining and quarrying (NAICS 2123)
SIC code1422
EPA region06

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 MILL CREEK DOLOMITE / MILL CREEK PLANT 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
January 6, 2026PCE On-Site Record/Report ReviewStateNew Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
July 1, 2025PCE On-Site Record/Report ReviewStateNew Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
February 3, 2025PCE On-Site Record/Report ReviewStateNew Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
April 24, 2024PCE On-Site Record/Report ReviewStateNew Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
February 20, 2024PCE On-Site Record/Report ReviewStateNew Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
February 6, 2024PCE On-Site Record/Report ReviewStateNew Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
January 11, 2024PCE On-Site Record/Report ReviewStateNew Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
October 25, 2023PCE On-Site Record/Report ReviewStateNew Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
September 6, 2023PCE On-Site Record/Report ReviewStateNew Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
February 5, 2021PCE On-Site Record/Report ReviewStateNew Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
August 28, 2020PCE On-Site Record/Report ReviewStateNew Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
January 10, 2019PCE On-Site Record/Report ReviewStateNew Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
August 21, 2018PCE Off-SiteStateNew Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
August 21, 2018PCE Off-SiteStateNew Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
June 1, 2018PCE On-Site Record/Report ReviewStateNew Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
February 2, 2018PCE On-Site Record/Report ReviewStateNew Source Performance Standards; 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 OK0000004006900002 since January 1, 2017.

Enforcement and penalties

2 formal enforcement actions since January 1, 2017, 2 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.

DateWhat EPA recordedAgencyPenalty, as filed
October 10, 2022Administrative OrderState$17,000
November 1, 2018Administrative OrderState$3,000

Informal enforcement

DateWhat EPA recordedAgency
May 17, 2024Notice of ViolationState
February 21, 2024Notice of ViolationState
January 12, 2022Notice of ViolationState
October 1, 2021Notice of ViolationState
July 13, 2021Notice of ViolationState
June 8, 2021Notice of ViolationState
April 7, 2021Notice of ViolationState
August 8, 2018Notice of ViolationState
April 6, 2018Notice of ViolationState
January 10, 2017Notice of ViolationState

Stack tests

EPA’s stack test file holds no test at ICIS-AIR OK0000004006900002 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 110007735111 there.

Nearby on the register

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

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