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Sodium Hydroxide Tank release; South Seattle, WA

South Seattle, WA | 2008-Mar-25

Initial Notification: USCG Sector Seattle contacted the NOAA SSC the night of March 25 for a risk assessment of the release of sodium hydroxide from a storage tank at a Washington Department of Ecology cleanup site at an industrial plating facility in south Seattle at 2411 6th Avenue. The tank failed at approximately 1750 on March 25, spilling an estimated 2000 gallons of sodium hydroxide into storm drains that empty into the Duwamish waterway. Information was requested on responder safety and potential environmental impacts.

Incident Details
Primary threat:Chemical
Products of concern:Sodium hydroxide
Total amount at risk of spill: 50000 gallons
Latitude (approximate): 47° 40.80′ North
Longitude (approximate): 122° 19.20′ West