Methane Leaks
Coal · Not seen recently

Methane emitter USA_S_527

Venting shaft in United States. Satellites have detected 9 methane plumes here since 25 Jun 2024, most recently on 3 Oct 2025.

9
Plumes
1
Plumes, last 12 months
2,490 kg/h
Largest detected rate
1,334 kg/h
Typical (median) rate
Satellite map of methane plume locations in USA_S_527
Map imagery © Mapbox © OpenStreetMap © MaxarOpen the interactive map →
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Who likely operates it

We don't have enough evidence to name an operator for this site yet. If you know who runs it, tell us below.

What do confidence levels mean?

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Response so far

Source type
Venting shaft
UNEP notified
Not applicable
Operator responded to UNEP
Not applicable
First seen
25 Jun 2024
Last seen
3 Oct 2025
Coordinates
39.95418, -80.24841 · Open in Google Maps (satellite)

Plume history

3 Oct 2025: 1,877 kg/h10 Aug 2025: 1,334 kg/h25 Jul 2025: 1,815 kg/h26 May 2025: 2,490 kg/h14 Mar 2025: 757 kg/h1 Feb 2025: 1,467 kg/h18 Nov 2024: 938 kg/h21 Aug 2024: 809 kg/h25 Jun 2024: 917 kg/h 25 Jun 2024 3 Oct 2025 2,490 kg/h
Emission rate of each detected plume over time
Detected Emission rate Likely operator
3 Oct 2025Coal 1,877 kg/h Not yet attributed View
10 Aug 2025Coal 1,334 kg/h Not yet attributed View
25 Jul 2025Coal 1,815 kg/h Not yet attributed View
26 May 2025Coal 2,490 kg/h Not yet attributed View
14 Mar 2025Coal 757 kg/h Not yet attributed View
1 Feb 2025Coal 1,467 kg/h Not yet attributed View
18 Nov 2024Coal 938 kg/h Not yet attributed View
21 Aug 2024Coal 809 kg/h Not yet attributed View
25 Jun 2024Coal 917 kg/h Not yet attributed View

Authorities you can notify

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