Spills
Kenai peninsula, alaska
Swanson River Oil Field; Kenai Peninsula, Alaska · NOAAORR-6434
- issued
- 1986-12-15 00:00Z
- status
- cancelled 1986-12-29 00:00Z
- self-cancels
- 1986-12-29 00:00Z
- authority
- NOAA OR&R
- sea
- Gulf of Alaska
- position
- 59.790, -151.586
- source
- incidentnews · first seen 2026-09-03 15:09Z
Original warning text
Swanson River Oil Field; Kenai Peninsula, Alaska. Kenai Peninsula, Alaska. 1. On December 12, 1986, a large gas leak was discovered in one of four wells, shut down since 1984, which had been operated by Atlantic Richfield Company (ARCO) in the Swanson River Oil Field on the Kenai Peninsula. Two days after the initial gas leak from the drilling pad, gas was observed emerging through the ground in several locations within a one-half mile radius of the pad, including into the Swanson River. On December 15 the leaking gas got into an oil-bearing strata and expelled approximately five barrels of oil onto the surface of the drilling pad through the leaking well. Due to the number of gas fumaroles, a major concern was discharge of more oil, particularly into the Swanson River. The U.S. Environmental Protection Agency (EPA) On-Scene Coordinator (OSC) was notified on December 15. USCG district 17. 2. COMMODITY: GAS, OIL. MAXIMUM POTENTIAL RELEASE: 210 GALLONS. 3. POSITION 59.790N 151.586W. NOAA INCIDENTNEWS 6434: https://incidentnews.noaa.gov/incident/6434
This area · spills & pollution incidents
147 within 180 nm since 1985 · 5 in the last 12 months · 1 in force now
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- Western cook inlet, ak2026-08-24
- Resurrection bay, seward, ak2026-06-13
- Anchorage, ak 99501, USA2026-04-16
- Whittier, ak 99693, USA2026-01-20
- Prince william sound, ak2025-12-08
- Kodiak island, ak2025-09-02
Season · when spills & pollution incidents happen here
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month of issue, all years in the archive
Nearby now · within 120 nm
- Western cook inlet, akSpills · 69.3 nm
Worldwide now
7 spills & pollution incidents in force · see all
Spills
Oil and chemical spills, groundings and vessel casualties with a pollution threat: NOAA IncidentNews responses since 1957, and spill-response areas broadcast as navigational warnings. All current spills & pollution incidents →
Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.