n-Hexane
n-Hexane releases at Andeavor Field Services LLC - Robinson Lake Gas Plant rose from 3k lb to 16k lb (6.1×) between 2023 and 2024.
TRI facility · TRI 2024 reporting year
Andeavor Field Services LLC - Robinson Lake Gas Plant
Total reported releases 48k lb rose sharply year over year (+64%). Total releases concentrations have more than halved since 2022.
4498 HIGHWAY 8, New Town, North Dakota · 211130 · Natural Gas Processing · operated by Marathon Petroleum CORP
Anomaly engine
Notable Signals
Ethylene glycol
Ethylene glycol releases at Andeavor Field Services LLC - Robinson Lake Gas Plant rose from 14k lb to 25k lb between 2023 and 2024.
Chemicals reported · most recent year
What This Facility Releases
Ethylene glycol
Ethylene glycol concentrations have more than doubled since 2022.
n-Hexane
n-Hexane concentrations have more than doubled since 2022.
Methanol
Methanol concentrations have more than halved since 2022.
Benzene
Benzene concentrations have more than doubled since 2022.
Ethylbenzene
Ethylbenzene concentrations have more than doubled since 2022.
Equity context · ACS 2018-2022 block-group demographics
Who Lives Next To This Facility
Mountrail County County, ND (no Census block groups within 3 miles — falling back to containing county): a population of 9,648. Why we surface this →
12.4%
Low-income
43.0%
People of color
8.5%
Under age 5
12.4%
Over age 64
Source: Census ACS 2018-2022 (5-year), county-level fallback. 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.