Washington State Department of Ecology : Spills Home

 Investigated Vessel Incidents in Washington State:

Pacific States/British Columbia Data

(A Pareto View)

Notes:
"Incidents" includes spills.
Data for 1999 through December 31, 2006 -- a total of 69 investigations, 67 for which cause was determined.
Causal information collected in accordance with Pacific States/British Columbia Oil Spill Task Force Data Dictionary.

"Immediate Cause": "Action or inaction that immediately preceded and led to the spill and/or event or near-miss."

"Contributing Factors": "Factors that contributed or led to the immediate cause.  The principal contributing factor is sometimes called the“root cause”."

Prefixes on categories: "EF"= "Equipment Failure"; "OF" = "Organizational Factor"; "HF"= "Human Factor"; "EXT"= "Environmental Factor"