1. Indicate the number of employees and supervisors who will be working on the site. 5-10

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3 Site Description continued - Describe the natural vegetation --- ground cover, trees, shrubs --- and any proposed changes. Describe the location of any estuarine, riparian, or wetlands and any noticeable animal use of area. The proposed site and all potential additional sites where Elodea may be detected, are located in the lower portion of the Chena River which is heavily urbanized. At the proposed site, surrounding vegetation includes black spruce, willows, aspen, birch, and shrubs such as prickly rose. No changes to terrestrial vegetation are proposed. Animals that may use the area are moose, hare, squirrels, and beavers. Waterfowl, raptors, and songbirds are also likely to be present in the surrounding area. Site Access - Describe how you plan to access the site, and your mode of transportation. The site will be accessed by boat. The pontoon barge with suction dredge apparatus will be parked at the Tanana Chief boat launch site, and the proposed site will be accessed from there. If your access is by aircraft, specify the type and size of aircraft: NA To access the site, the aircraft is equipped with floats [ ] wheels [ ] skis [ ]. Number of people 1. Indicate the number of employees and supervisors who will be working on the site Indicate the number of customers who will be using the site per year or season Indicate the number of days the site will be used per year or season. 90 days Environmental Risk / Hazardous Substances - In the course of your proposed activity will you generate, use, store, transport, dispose of, or otherwise come in contact with toxic and/or hazardous materials, and/or hydrocarbons? Yes[ x] No[]. If yes, please describe: During the proposed activity, there will be limited (approx gallons is needed for a season) refuelling of the barge. The types and volumes of fuel or other hazardous substances present or proposed: The pontoon barge on which the suction dredge is mounted may need to be refuelled during the course of suction dredging activities. The activities will produce a small amount of fuel emissions to the air. The specific storage location(s): Fuel will collected in a 5 gallon gas can from a gas station and brought onto the barge for refuelling as needed. The spill plan and prevention methods: A very limited amount of fuel is needed for the project activities (5-10 gallons). At such time that refuelling is needed, gas will be transferred to the gas tank from a 5 gallon gas can carefully with the help of a funnel. If there is any spillage, the spill will be cleaned up immediately with absorbent pads. Land Use Permit Application A (Rev.03/13) Receipt Type FF (Non-Guide) or 7A (Guide) Page 3 of 4

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5 Project Description Elodea is a harmful invasive species that grows in dense vegetative mats, impedes boat travel, and degrades native fish habitat. If it spreads downstream from the Chena River and enters the Tanana and Yukon drainages, it could infest areas further downstream and damage sensitive fisheries. The purpose of the proposed project is to remove the aquatic invasive plant Elodea from one known location along the Chena River using a diver-assisted suction dredge system. In each year of the project, dive surveys for Elodea will be conducted in the Chena River, between its mouth and the mouth of Chena Slough. If any additional rooted patches of Elodea are found in the river, they will be removed using suction dredging. The suction dredging system consists of a sluiceway box with an attached intake hose and dredge motor mounted on top of a pontoon boat. For suction dredging, a SCUBA diver stays anchored and feeds the plant material into the 4 inch diameter suction hose nozzle. The plant material along with some adhering sediment gets sucked through the hose into the sluiceway box where it is collected in mesh bags at three terminals. The purpose of this procedure is to remove plant material, though water and some sediment that is adhering to the plant material may also be sucked up.

6 20 ft CHENA RIVER SUCTION DREDGING OF ELODEA PLAN VIEW Chena River N DRAINAGE FLOW Suction dredging apparatus on pontoon boat 4 diameter suction hose Patch of Elodea- plant material to be removed Floating boom for collection of plant fragments 20 ft

7 CHENA RIVER SUCTION DREDGING OF ELODEA CROSS- SECTION VIEW N Plant material (Elodea) to be suction dredged and removed from waterway RIVERBANK Suction dredge apparatus with 4 diameter intake hose mounted on pontoon boat WATER LEVEL Maximum depth of sediment that may be sucked Up along with plant material is ft

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