Neka Bay, SE06-03

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Tim L. Robertson

This map is not intended to be used for navigation. Soundings in fathoms

Center of map at 58˚ 02.3' N Lat., 135˚ 37.3' W Lon.

SE06-03 Looking northwest over the North and South Bight of Neka Bay.Lege

ndMap Photo&

SE06-03-02,03a,05 Looking west into Neka Bay.

June 26, 2003

Free-oil Containment andRecovery, Shallow Water

Exclusion Booming

Diversion Booming

Deflection Booming, Fixed

Passive Recovery and Debris

Protected-water Boom

FO-S

MR

Snare Line

Calm-water Boom

Tidal-seal Boom

Marine Recovery

Bears in Area, GuardsNeeded

MR

FO-S01

02DV

03aEX

03bEX

04aDF

04bDF

04cDF

04dDF

05PR

NEKABAY

Neka Is.

South Bight

North Bight

Eight Fathom Bight

Scale

1 nm

1 mi.

1,000 yds.

EX

DV

DF

PR

Southeast Alaska Geographic Response Strategies June 26, 2003

SE06-03

ID Location and Description Response Strategy Implementation Response Resources Staging Area Site Access Resources Protected(months)

Special Considerations

SE06-03-01 Mouth of Neka Bay

Nearshore waters in thegeneral area of:

Lat. 58° 02.4 NLong. 135° 37.3 W

Free-oil Recovery

Maximize free-oilrecovery in the offshore &nearshore environment.

Deploy free-oil recovery strike teamsupwind and up-current. Use aerialsurveillance to locate incoming slicks.

Multiple free-oil recovery strike teamsas required to maximize interception ofoil before it impacts sensitive areas.

Vessel platform Via marinewaters

Same as SE06-03-02

SE06-03-02 Neka River mouthLat. 58º 03.1 NLon. 135º 40.5 W

Diversion / Recovery

Divert oil entering mouthof Neka River to marinerecovery.

Use class 2 and class 3/4 vessels withdeck space to transport equipment. class6 setnet or seine skiffs to deploy boomand set anchors. Place 3200 ft. ofprotected-water boom at the head of NekaBay, in a chevron pattern, to divert oil tomarine recovery.

DeploymentEquipment

3200 ft. protected-water boom34 ea. anchor systems (~40 lbs.)1 marine recovery unit

Vessels2 ea. class 22 ea. class 3/42 ea. class 6

Personnel / Shift18 ea. vessel crewTending

Vessels1 ea. class 3/42 ea. class 6

Personnel / Shift5 ea. vessel crew

Vessel platformor Hoonah

Via marinewaters

Marine mammals-harbor seal rookeriesand haulouts, whale and seal feeding area

Fish-intertidal salmon/trout spawning(coho, pink, chum, sockeye, king, DollyVarden) (May-Aug.)

Birds-high density pigeon guillemots atChimney Rock, waterfowl and shorebirdconcentration area (year-round)

Habitat-sheltered tidal flats, extensivemarsh, eelgrass beds

Human use-subsistence use area, shellfishharvesting/clam flat, high recreational use

Terrestrial mammals-bears

See Figure G-3-12 forequipment locations.

Bears in area.

FOSC HistoricProperties Specialistshould MONITOR on-site operations.

Consider using logboom.

Title 41 permit may benecessary. ContactADNR.

Tested: not yet

SE06-03-03 Cove in Neka Baya. Lat. 58º 03.0 N

Lon. 135º 41.0 W

b. Lat. 58º 02.1 NLon. 135º 38.7 W

Exclusion

Exclude oil from enteringNorth Bight.

Place protected-water boom in twoarrays, with tidal-seal on each end, fromsmall island to headlands of cove toexclude oil from entering cove,

Boom Arrays a. 1800 ft.b. 1200 ft.

DeploymentEquipment

3000 ft. protected-water boom32 ea. anchor systems (~40 lbs.)4 ea. 50 ft. tidal-seal boom units12 ea. anchor stakes

Vessels / Personnel / TendingSame as SE03-01-02

Vessel platformor Hoonah

Via marinewaters

Same as SE06-03-02 Consider using log boomin front of oil boom

Tested: not yet

SE06-03-04 Neka Island /Open Waterbetween North Bightand Chimney Rock

a. Lat. 58º 01.9 NLon. 135º 38.0 W

b. Lat. 58º 01.8 NLon. 135º 37.1 W

c. Lat. 58º 01.4 NLon. 135º 36.8 W

d. Lat. 58º 01.1 NLon. 134º 37.2 W

Deflection

Deflect oil away fromNeka Bay.

Place array (a) at the southeast point ofNeka Island, array b. offshore betweenNeka Island and Chimney Rock, array c.around Chimney Rock to deflect oilcoming from the north and array d. southof chimney rock to deflect oil comingfrom the south. Swing boom with tide.

Boom Arrays a. 1200 ft.b. 1400 ft.c. 3000 ft.d. 2000 ft.

DeploymentEquipment

7600 ft. protected-water boom78 ea. anchor systems (~40 lbs.)

Vessels / Personnel / TendingSame as SE03-01-02

Vessel platformor Hoonah

Via marinewaters

Same as SE06-03-02 See Figure G-3-12 forequipment locations.

Tested: not yet

SE06-03-05 Mouth of Neka RiverLat. 58º 03.2 NLon. 135º 41.7 W

Passive Recovery

Exclude oil from enteringmouth of Neka Bay.

Place 2000 ft. of snare line or sorbentboom across mouth of Neka River toexclude oil from entering Neka River

Use snare line for persistent oils andsorbent boom for non-persistent.

DeploymentEquipment

2000 ft. protected-water boom22 ea. anchor systems (~40 lbs.)

Vessels / Personnel / TendingSame as SE03-01-02

Vessel platformor Hoonah

Via marinewaters

Same as SE06-03-02 Consider placing aharbor boom behindpassive recovery.