Velarion Records
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Clean Air Act stationary source · ICIS-AIR CO0000000812300090

DCP OPERATING CO - MEWBOURN, Gilcrest 2.4 Mi. N Of, CO: Clean Air Act compliance record, inspections, violations, penalties

DCP OPERATING CO - MEWBOURN, at 18455 COUNTY ROAD 35, Gilcrest 2.4 Mi. N Of in Weld County, Colorado, is an operating major 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 “Addressed-State”. Weld 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 filedDCP OPERATING CO - MEWBOURN
ICIS-AIR IDCO0000000812300090
EPA facility registry ID110010691750
Operating statusOperating
Emissions classificationMajor source
Current violation status (ICIS-AIR high-priority violation field)Addressed-State
Address18455 COUNTY ROAD 35, Gilcrest 2.4 Mi. N Of, CO 80645
CountyWeld County
In a nonattainment countyYes (EPA Green Book)
Industry (NAICS)Oil and gas extraction (NAICS 2111)
SIC code1311
EPA region08

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 DCP OPERATING CO - MEWBOURN 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
September 22, 2025FCE On-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; Prevention of Significant Deterioration of Air Quality; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
September 13, 2024FCE On-SiteStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
August 28, 2023FCE On-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; Prevention of Significant Deterioration of Air Quality; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
September 21, 2022FCE On-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; Prevention of Significant Deterioration of Air Quality; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
September 8, 2021FCE On-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; Prevention of Significant Deterioration of Air Quality; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
September 30, 2020FCE On-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; Prevention of Significant Deterioration of Air Quality; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
May 14, 2019FCE On-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; Prevention of Significant Deterioration of Air Quality; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
May 3, 2018FCE On-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; Prevention of Significant Deterioration of Air Quality; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
March 20, 2018PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; Prevention of Significant Deterioration of Air Quality; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
July 26, 2017FCE On-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; Prevention of Significant Deterioration of Air Quality; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits

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.

DateWhat EPA recordedAgencyPrograms
October 17, 2024Earliest FRV determinationStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
July 7, 2019Earliest FRV determinationStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
October 24, 2017Earliest FRV determinationStateMACT Standards (40 CFR Part 63); New Source Performance Standards; Prevention of Significant Deterioration of Air Quality; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits

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
January 23, 2019Administrative OrderState$29,050
January 24, 2018Administrative OrderState$34,650

Informal enforcement

DateWhat EPA recordedAgency
January 9, 2026Notice of ViolationState
September 5, 2018Notice of ViolationState
July 5, 2017Notice of ViolationState

Stack tests

The newest 50 of 88.

DateWhat EPA recordedAgency
April 23, 2026PassState
April 21, 2026PassState
April 21, 2026PassState
April 8, 2026PassState
April 8, 2026PassState
April 7, 2026PassState
April 7, 2026PassState
July 9, 2025PassState
June 3, 2025PassState
April 29, 2025FailState
April 25, 2025PassState
April 25, 2025PassState
April 7, 2025PassState
April 7, 2025PassState
April 7, 2025PassState
April 7, 2025PassState
April 17, 2024PassState
April 17, 2024PassState
April 17, 2024PassState
April 16, 2024PassState
April 16, 2024PassState
April 16, 2024PassState
April 16, 2024PassState
July 11, 2023PassState
April 17, 2023PassState
April 11, 2023PassState
April 11, 2023PassState
April 11, 2023PassState
April 10, 2023PassState
April 10, 2023PassState
April 10, 2023PassState
April 6, 2023PassState
April 6, 2023PassState
April 5, 2023PassState
April 5, 2023PassState
December 6, 2022PassState
December 6, 2022PassState
October 31, 2022PassState
May 13, 2022PassState
May 13, 2022PassState
May 12, 2022PassState
May 10, 2022PassState
May 9, 2022PassState
April 27, 2022PassState
April 27, 2022PassState
April 27, 2022PassState
April 27, 2022PassState
April 26, 2022PassState
April 12, 2022PassState
April 5, 2022PassState

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 110010691750 there.

Nearby on the register

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