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AKRF’s Hazardous Materials Department was retained for all permitting and safety activities linked to the renovation of the Saint Georges Ferry Terminal in Staten Island. This included the simulation of accidental oil spills, tidal movements of pollutants, and affected environmentally sensitive areas. This tidal pollution dispersion simulation was developed using the National Oceanic and Atmospheric Administration’s NOAA Gnome software by Eymund Diegel.
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Pier 7
Upper Bay
The Narrows
Jersey Flats
Robbins Reef
Grasmere Lake
Gowanus Flats
Constable Hook
Hendricks Reef
Rock Breakwater
Ducksberry Point
Pierhead Channel
Anchorage Channel
Bay Ridge Channel
Greenville Channel
Constable Hook Reach
Bergen Point East Reach
Fig 1 - Saint George's FerryOutgoing Tidal Currents and Environmentally Sensitive Areas
sources: Environmentally Sensitive Areas from NOAA ESI 2001 dataset and Tidal Currents from NOAA GNOME Tidal Simulator fror June 18, 8am 0 2,000 4,000
Feet
Legend
10D-Scrub-shrub wetlands
10D+-Scrub-shrub wetlands (most sens)
10C-Swamps
10C+-Swamps (most sens)
10B-Freshwater marshes
10B+-Freshwater marshes (most sens)
10A-Salt- & brackish-water marshes
10A+-Salt- & brackish-water marshes (most sens)
9B-Sheltered vegetated low banks
9B+-Sheltered vegetated low banks (most sens)
9A-Sheltered tidal flats
9A+-Sheltered tidal flats (most sens)
8F-Vegetated, steeply-sloping bluffs
8C-Sheltered rip-rap
8C+-Sheltered rip-rap (most sens)
8B-Sheltered, solid man-made structures
8B+-Sheltered, solid man-made structures (most sens)
8A-Sheltered rocky shores
8A+-Sheltered rocky shores (most sens)
7-Exposed tidal flats
7+-Exposed tidal flats (most sens)
6B-Riprap
6B+-Riprap (most sens)
6A-Gravel beaches
6A+-Gravel beaches (most sens)
5-Mixed sand and gravel beaches
5+-Mixed sand and gravel beaches (most sens)
4-Coarse-grained sand beaches
4+-Coarse-grained sand beaches (most sens)
3B-Scarps and steep slopes in sand
3A-Fine- to medium-grained sand beaches
3A+-Fine- to medium-grained sand beaches (most sens)
2B-Scarps and steep slopes in muddy sediments
2A-Exposed wave-cut platforms in bedrock
2A+-Exposed wave-cut platforms in bedrock (most sens)
1B-Exposed, solid man-made structures
1B+-Exposed, solid man-made structures (most sens)
1A-Exposed rocky shores
10D-Scrub-shrub wetlands
10C-Freshwater swamps
10B-Freshwater marshes
10A-Salt- and brackish-water marsh
9A-Sheltered tidal flats
7-Exposed tidal flats
4-Sandy bars and gently sloping banks
2A-Exposed, wave-cut platforms
Direction and Strengthof Tidal Current
SITE
ferry
route
Pier 7
Upper Bay
The Narrows
Jersey Flats
Robbins Reef
Grasmere Lake
Gowanus Flats
Constable Hook
Hendricks Reef
Rock Breakwater
Ducksberry Point
Pierhead Channel
Anchorage Channel
Bay Ridge Channel
Greenville Channel
Constable Hook Reach
Bergen Point East Reach
Fig 2 - Saint George's FerryIncoming Tidal Currents and Environmentally Sensitive Areas
sources: Environmentally Sensitive Areas from NOAA ESI 2001 dataset and Tidal Currents from NOAA GNOME Tidal Simulator fror June 18, 3 pm 0 2,000 4,000
Feet
Legend
10D-Scrub-shrub wetlands
10D+-Scrub-shrub wetlands (most sens)
10C-Swamps
10C+-Swamps (most sens)
10B-Freshwater marshes
10B+-Freshwater marshes (most sens)
10A-Salt- & brackish-water marshes
10A+-Salt- & brackish-water marshes (most sens)
9B-Sheltered vegetated low banks
9B+-Sheltered vegetated low banks (most sens)
9A-Sheltered tidal flats
9A+-Sheltered tidal flats (most sens)
8F-Vegetated, steeply-sloping bluffs
8C-Sheltered rip-rap
8C+-Sheltered rip-rap (most sens)
8B-Sheltered, solid man-made structures
8B+-Sheltered, solid man-made structures (most sens)
8A-Sheltered rocky shores
8A+-Sheltered rocky shores (most sens)
7-Exposed tidal flats
7+-Exposed tidal flats (most sens)
6B-Riprap
6B+-Riprap (most sens)
6A-Gravel beaches
6A+-Gravel beaches (most sens)
5-Mixed sand and gravel beaches
5+-Mixed sand and gravel beaches (most sens)
4-Coarse-grained sand beaches
4+-Coarse-grained sand beaches (most sens)
3B-Scarps and steep slopes in sand
3A-Fine- to medium-grained sand beaches
3A+-Fine- to medium-grained sand beaches (most sens)
2B-Scarps and steep slopes in muddy sediments
2A-Exposed wave-cut platforms in bedrock
2A+-Exposed wave-cut platforms in bedrock (most sens)
1B-Exposed, solid man-made structures
1B+-Exposed, solid man-made structures (most sens)
1A-Exposed rocky shores
10D-Scrub-shrub wetlands
10C-Freshwater swamps
10B-Freshwater marshes
10A-Salt- and brackish-water marsh
9A-Sheltered tidal flats
7-Exposed tidal flats
4-Sandy bars and gently sloping banks
2A-Exposed, wave-cut platforms
Direction and Strengthof Tidal Current
SITE
ferry
route
74° 6’W 74°4’W 74°2’W
40°37’N
40°38’N
40°39’N
40°40’N
Model Mode: StandardEstimate for: 01:48 06/19/09Prepared: 09:14 06/18/09
Scenario Name: Saint George's Ferry 500 Gallon SpillPrepared by: Eymund Diegel
This trajectory was produced by GNOME (General NOAA Operational Modeling Environment),and should be used for educational and planning purposes only--not for a real response. In theevent of an oil or chemical spill in U.S. waters, contact the U.S. Coast Guard National ResponseCenter at 1-800-424-8802.
New York Harbor Location FileConstant Wind: 10 miles / hour from NW
Black Splots: Best Estimate of Fuel Oil DispersionRed Splots: Uncertainty Variable Included for Fuel Oil DispersionTidal Currents
Splot Mass Balance Totals (Best estimate):Released: 500 gallonsEvaporated/Dispersed: 143 gallonsBeached: 246 gallonsO� Map: 0 gallonsFloating: 112 gallons
Figure 3 - Saint George’s Ferry 24 Hour Fuel Oil Spill Simulation
Saint George’sFerry Spill Site
