1. G-Weave Fabric Developments Characteristics Newly Available Woven Geo- Textile Capable of Higher Flows than Previous Stronger and More Durable.

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G-Weave Fabric Developments

Characteristics Newly Available Woven Geo-

Textile Capable of Higher Flows than Previous

Stronger and More Durable than Traditional Filter Fabric

Lighter, and No Increase with Wet-Weight

Easily Cleaned and Maintained

G-Weave Fabric Developments

Woven

Non-woven

Strength Testing

Field Testing Apparatus

Fabric Depictions

G-Weave Fabric Developments

• Gunderboom Testing and Results– Tensile Strength – 440 vs. > 1400 lbs.*

– Sew Seam Strength – ½” from edge

– Pressure Wash Durability – No Signs of Wear

– Agitation – No Signs of Wear; Heat Welds Held Up

– Rip Stop – 200 vs. 1150 lbs.*

– Puncture Durability – No Resultant Tearing

*Traditional Non-Woven vs. G-Weave Woven

G-Weave Fabric Developments

Biological Survivability – Testing at Alden Labs

Survival of Blueback Herring eggs after exposure to the G-Weave fabric in the laboratory was high

Alden described that, “the mortality experienced in this study... may potentially reflect natural mortality”.

There was no significant difference between the survival of eggs exposed to the new G-Weave fabric, or other Gunderboom fabrics, and the control samples.

Anchor/Mooring System Developments and Alternatives

Pile- Supported Structures

Filter Pools

Helical Anchors

Buoyancy DevelopmentsBuoyancy Developments

Buoyancy Analysis

34 35 36 37 38 39 40 41 422000

2200

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Water Depth (ft)

OverT

oppin

g Load (lb

)

Theta=10Theta=20Theta=30Theta=40Theta=50Theta=60Theta=70Theta=80Theta=90

w

Water Surface

FLOWd

alpha theta

Billet stickup = 10.2 in (0.85 ft)

q = 6.14 gpm/sq. ft dH = 1.0 inches (0.08 ft)

= 6.14 gpm/sq. ft/inch p = 5.2 psf

Billet diameter = 21 inches

156.2° R = 21.3' C = 58.2'

111 lb/ft

and water head differential is at normal operating level (e.g., dH = 1.0 inches).

Billet stickup = 9.4 in (0.78 ft)

q = 5.87 gpm/sq. ft dH = 1.0 inches (0.08 ft)

= 6.14 gpm/sq. ft/inch p = 5.0 psf

Billet diameter = 21 inches

115 lb/ft 153.1° R = 22.6'

C = 60.4'

112 lb/ft

High Tide Case: Tide or river level at high condition. Boom fabric is un-clogged (same as design operating condition).

Billet stickup = 12.7 in (1.05 ft)

q = 6.43 gpm/sq. ft dH = 1.0 inches (0.09 ft)

= 6.14 gpm/sq. ft/inch p = 5.4 psf

Billet diameter = 21 inches

164.1° R = 18.6' C = 53.4'

102 lb/ft

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43.9242.78

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44.7844.00

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Control System Developments– Networking Hardware – More Robust and Widely-Used Systems Available (e.g.

“DeviceNet”)

– Independent Components Provide More Reliable Operation; No “Christmas Tree Lights”

Remote Monitoring Ability – Lovett Generating Station

Remote Monitoring Ability – Lovett Generating Station

Remote Monitoring Ability – Astoria Generating Station

Remote Monitoring Ability – Bethlehem Energy Center

Gunderboom Projects – Ongoing Projects

– Lovett Generating Station

Lovett Generating Station2007 Exclusion Rates

“Conclusion -Calculation of ichthyoplankton exclusion rate based on seasonal

paired plankton sampling and analysis yielded a 95.4% exclusion for fish larvae and 96.4% exclusion for fish eggs.”

(Gunderboom, 2007)

Gunderboom Projects – OGunderboom Projects – Ongoing Projectsngoing Projects

Gunderboom Projects -Other Gunderboom

Successes!– Mamaroneck, NY – Beach Protection System™ (Demonstrated in Photo Below)

– Kensico, NY – Reservoir Protection System™

Gunderboom Projects – New Projects

New York City Waterfalls,

Public Art Fund

Taunton River Desalination Plant*

*Gunderboom Proprietary Material For viewing by the direct Recipient only. Not to be reproduced or forwarded.

Gunderboom Projects – Gunderboom Projects – New ProjectsNew Projects

*Gunderboom Proprietary Material For viewing by the direct recipient only.Not to be reproduced or forwarded.

Gunderboom Projects – New Projects

Taunton River Desalination Plant*

Taunton River Desalination Plant MLES™

Gunderboom Projects – Gunderboom Projects – New ProjectsNew Projects

*Gunderboom Proprietary Material For viewing by the direct recipient only.

Not to be reproduced or forwarded.

Gunderboom Projects – New Projects

Paluel – MLES™ for Coastal Nuclear Power Plant

Gunderboom Projects –New Projects

Previous Dredging ResultsInside Outside

Sheen: Present No SheenTurbidity: 96 NTU 1.5 NTU

TSS: 350 mg/l 13 mg/lChrysene 0.36 ug/l nd(ex)

HEAVY DUTY TURBIDITY BARRIERSpecification:

“A. Silt/turbidity barrier shall consist of heavy duty non-woven skirt, flotation elements, PVC coated

reinforced vinyl debris boom, top tension cable and bottom chain ballast or other anchorage system which

will not obstruct navigation.B. Barrier shall be full-height, extending from the water surface to the river bottom. The height will depend on the alignment of turbidity barrier and the bathymetric

contours along that alignment.C. Non-woven skirt shall be comprised of 100%

polypropylene filaments, needle punched and heat set.”

Highlands Bridge –Sea Bright, New Jersey

City of Stockton – MLES™ Delta Water

Supply Project

GUNDERBOOM PROJECT APPROACH

Phase I – Conceptual Design and Preliminary Feasibility StudyPhase II – Design Engineering Studies; Pilot TestingPhase III – Final Engineering DesignPhase IV – Procurement and FabricationPhase V – Installation and CommissioningPhase VI – Operations and Maintenance

Gunderboom Projects –New Projects

9401 King St., Ste A 2 White Sands Lane

Anchorage, AK 99515 Scarborough, ME 04074

866-396-5100 207-883-1777

www.gunderboom.comwww.gunderboom.com

Corporate Office

9401 King St., Ste A

Anchorage, AK 99515

866-396-5100For Copy of Presentation or Questions:

amccusker@gunderboom.com or jwells@gunderboom.com

(207) 883-1777