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Clean Air Act stationary source · ICIS-AIR ME0000002300500049

SUNOCO MIDSTREAM LLC, South Portland, ME: Clean Air Act compliance record, inspections, violations, penalties

SUNOCO MIDSTREAM LLC, at 175 FRONT ST, South Portland in Cumberland County, Maine, 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”. Cumberland 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 filedSUNOCO MIDSTREAM LLC
ICIS-AIR IDME0000002300500049
EPA facility registry ID110000314357
Operating statusOperating
Emissions classificationSynthetic minor source
Current violation status (ICIS-AIR high-priority violation field)No Violation Identified
Address175 FRONT ST, South Portland, ME 04106
CountyCumberland County
In a nonattainment countyYes (EPA Green Book)
Industry (NAICS)Merchant wholesalers, nondurable goods (NAICS 4247)
SIC code5171
EPA region01

Cited to the EPA ICIS-AIR facility file (ECHO download).

Programs and pollutants

Velarion’s copy of EPA’s ICIS-AIR download does not yet include its program, pollutant and Title V certification files, so this page does not list the Clean Air Act programs SUNOCO MIDSTREAM LLC 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
July 30, 2025PCE Off-SiteStateMACT Standards (40 CFR Part 63)
February 3, 2025PCE Off-SiteStateMACT Standards (40 CFR Part 63)
August 1, 2024PCE Off-SiteStateMACT Standards (40 CFR Part 63)
January 30, 2024PCE Off-SiteStateMACT Standards (40 CFR Part 63)
July 28, 2023PCE Off-SiteStateMACT Standards (40 CFR Part 63)
October 21, 2022PCE Off-SiteState40 CFR Part 63 Area Sources
August 2, 2022FCE On-SiteStateMACT Standards (40 CFR Part 63)
July 25, 2022PCE Off-SiteState40 CFR Part 63 Area Sources
January 30, 2022PCE Off-SiteStateMACT Standards (40 CFR Part 63)
January 24, 2022PCE Off-SiteStateMACT Standards (40 CFR Part 63)
July 29, 2021PCE Off-SiteStateMACT Standards (40 CFR Part 63)
January 28, 2021PCE Off-SiteStateMACT Standards (40 CFR Part 63)
January 27, 2020PCE Off-SiteStateMACT Standards (40 CFR Part 63)
July 31, 2019PCE Off-SiteStateMACT Standards (40 CFR Part 63)
May 8, 2019PCE On-SiteStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
January 24, 2019PCE Off-SiteStateMACT Standards (40 CFR Part 63)
July 30, 2018PCE Off-SiteStateMACT Standards (40 CFR Part 63)
February 2, 2018PCE Off-SiteStateMACT Standards (40 CFR Part 63)
July 21, 2017PCE Off-SiteStateMACT Standards (40 CFR Part 63)
May 10, 2017PCE On-SiteStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
May 4, 2017PCE On-SiteU.S. EPAState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
May 4, 2017PCE On-SiteU.S. EPAState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
May 4, 2017PCE On-SiteU.S. EPAState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
January 30, 2017PCE Off-SiteStateMACT Standards (40 CFR Part 63)
January 18, 2017FCE On-SiteStateState 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 ME0000002300500049 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 ME0000002300500049 since January 1, 2017.

Stack tests

DateWhat EPA recordedAgency
June 4, 2024PassState
June 15, 2023PassState
June 8, 2022PassState
May 11, 2022PassState
May 5, 2021PassState
May 5, 2021PassState
May 28, 2020PassState
May 28, 2020PassState
May 8, 2019PassState
May 9, 2018PassState

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.

Watch this source

One source, $99/month. A source: the register entry for a plant, refinery, kiln, generating station, or other fixed installation the agency tracks under the Clean Air Act. Choose “One source” and enter this source’s ICIS-AIR ID, ME0000002300500049.

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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 110000314357 there.

Nearby on the register

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