0000074908
0000074908 releases at Marathon Petroleum CO LP - Michigan Refining Div fell from 28k lb to 0 lb (100% lower) between 2023 and 2024.
TRI facility · TRI 2024 reporting year
Marathon Petroleum CO LP - Michigan Refining Div
Total reported releases 115k lb fell meaningfully year over year (-28%). Total releases concentrations have more than halved since 2010.
1300 S FORT ST HES DEPT, Detroit, Michigan · 324110 · Petroleum · operated by Marathon Petroleum CORP
Anomaly engine
Notable Signals
Propylene
Propylene at Marathon Petroleum CO LP - Michigan Refining Div have more than halved since 2010 (through 2024).
Total reported releases
Total reported releases at Marathon Petroleum CO LP - Michigan Refining Div have more than halved since 2010 (through 2024).
Chemicals reported · most recent year
What This Facility Releases
Propylene
Propylene concentrations have more than halved since 2010.
Ammonia
Ammonia concentrations have fallen 15% since 2010.
Hydrogen sulfide
Hydrogen sulfide concentrations have fallen 34% since 2012.
Toluene
Toluene concentrations have more than halved since 2010.
Xylene (mixed isomers)
Xylene (mixed isomers) concentrations have more than halved since 2010.
Naphthalene
Naphthalene concentrations are up 62% since 2010.
n-Hexane
n-Hexane concentrations have more than halved since 2010.
Ethylene
Ethylene concentrations have more than doubled since 2010.
Equity context · ACS 2018-2022 block-group demographics
Who Lives Next To This Facility
Within 3 miles of this facility (80 Census block groups, population-weighted demographics): a population of 86,296. Why we surface this →
52.7%
Low-income
58.8%
People of color
7.8%
Under age 5
11.5%
Over age 64
Source: Census ACS 2018-2022 block-group demographics, population-weighted across the 3-mile buffer around this facility (from USEPA-clone/EJAM-open blockgroupstats). Indicator-level percentile and EJ-disparity scores are surfaced on the county page and the state page — they describe wider regional exposure burdens, not effects attributable to a single facility.
Source. EPA Toxics Release Inventory · retrieved 2026-05-07. Reporting year 2024. TRI is a federal public-domain dataset under 17 USC §105.
What this is not. TRI quantifies releases reported by the facility under EPCRA §313 — not ambient air or water concentrations measured at receptors. We do not attribute individual health outcomes to specific facilities; that exceeds what the data can support.