WSMC Non-Floating Oil Assessment Tool
WAC 173-182-324 | 1-Hour NFO Sinking Risk Assessment
Assessment
Scientific Methodology
Oil Product
Manual entry (SDS / known specific gravity)
Search NOAA Oil Library
Product Type
API Gravity
Fresh Density
Oil / Product Name
Product Type
Unknown / Other
Gasoline
Jet Fuel / Aviation Fuel
Kerosene
Diesel / Marine Gas Oil
Light Crude (API > 31)
Medium Crude (API 22–31)
Heavy Crude (API < 22)
Diluted Bitumen (Dilbit)
Intermediate Fuel Oil (IFO 180/380)
Heavy Fuel Oil
Residual Fuel Oil (No. 6)
Bunker C
Sets evaporation defaults for the weathering forecast. Leave as Unknown to estimate from API/specific gravity.
Specific Gravity (g/mL)
API Gravity (optional)
Environmental Conditions
Water Temperature
°F
°C
Air Temperature
°F
Water Type
Salt (32 PSU)
Brackish (15 PSU)
Fresh (0.5 PSU)
Custom
Custom Salinity (PSU)
Wind Speed
knots
mph
m/s
Sediment Load
Low
Medium
High
Incident Details
(for report)
Vessel / Facility Name
Spill Location
Estimated Volume
gallons
barrels
m³
Date & Time of Spill
Used to account for weathering that has already occurred — the forecast starts from the oil's current weathered state.
Assessor Name
Run Assessment