Hydrogen sulfide
Hydrogen sulfide releases at Carter Creek Gas Plant fell from 84k lb to 29k lb (66% lower) between 2023 and 2024.
TRI facility · TRI 2024 reporting year
Carter Creek Gas Plant
Total reported releases 29k lb fell sharply year over year (-66%). Total releases concentrations have more than halved since 2022.
35 MI NNE EVANSTON, Evanston, Wyoming · 211130 · Natural Gas Processing · operated by Hilcorp Energy Co
Anomaly engine
Notable Signals
Chemicals reported · most recent year
What This Facility Releases
Hydrogen sulfide
Hydrogen sulfide concentrations have more than halved since 2022.
Benzene
Benzene concentrations are up 21% since 2022.
Equity context · ACS 2018-2022 block-group demographics
Who Lives Next To This Facility
Within 3 miles of this facility (10 Census block groups, population-weighted demographics): a population of 11,500. Why we surface this →
31.8%
Low-income
15.0%
People of color
5.5%
Under age 5
15.5%
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.