Monday afternoon US coast guard, sector boston was notified of a release in the area of the island end river…

Original warning text

Island End River Mystery Spill; Boston, MA.
Boston, MA.
1. Monday afternoon US Coast Guard, Sector Boston was notified of a release in the area of the Island End River in Boston Harbor. The source, the amount and the product were (and remain) unconfirmed. However, it is suspected that the release happened sometime on the night of Sunday January 08 and was a diesel or #2 heating oil product (chemical analysis through the USCG Marine Safety Lab is pending) and the amount is somewhere between 5,000 and 10,000 gallons. Helped by slow currents and consistent west to southwest winds, a large portion of the released product pooled at the northern end of the Island End River (IER) and recovery operations have been focused there. Some oil sheen was reported in the Mystic River (upper end of Boston Harbor) and in the Chelsea River, about a half a mile east of the IER, but none of it was deemed recoverable. Protective booming of the salt marshes at the [...]
2. THREAT: OIL. MAXIMUM POTENTIAL RELEASE: 10000 GALLONS.
3. POSITION 42.391N 071.052W. NOAA INCIDENTNEWS 6043: https://incidentnews.noaa.gov/incident/6043