Phase 2 Of Aquatic Weed Treatments Occurring On Wednesday

Aquatechnex will be performing the second aquatic invasive species management application to Loon Lake on Wednesday August 3rd, 2022.

Our team will be posting shoreline sign notices the day before treatment on Tuesday August 2nd, 2022 to all affected properties. These will be properties adjacent to the treatment zones and within 400 feet of a treatment zone.

This second treatment of the year will be targeting the invasive species Eurasian/Hybrid Milfoil. Areas of the lake will be treated with the systemic herbicide ProcellaCOR EC. There are no restrictions on water use except for drawing water from the treatment zone to irrigate plants and turf grass. It is safe to swim, fish and drink potable water out of the lake immediately following treatment in all Galleon zones.

The following link connects to the treatment zone map: https://arcg.is/vuC1P

Using the above map link you can determine where we plan to apply the ProcellaCOR EC herbicide on Loon Lake and if these applications impact your lakefront. Submit questions to 509-960-8133.

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2022 Invasive Aquatic Weed Treatments To Start Next Week On Loon Lake

Aquatechnex will be performing the first aquatic invasive species management application to Loon Lake on Thursday June 30th, 2022.

Our team will be posting shoreline sign notices the day before treatment on Wednesday June 29th to all affected properties. These will be properties adjacent to the treatment zones and within 400 feet of a treatment zone.

This first treatment of the year will be targeting a newer invasive species called Curly Leaf Pondweed. Most areas of the lake will be treated with the systemic herbicide Galleon SC. There are no restrictions on water use except for drawing water from the treatment zone to irrigate plants and turf grass. It is safe to swim, fish and drink potable water out of the lake immediately following treatment in all Galleon zones.

The steep shoreline along Lakeshore Homes Rd. will be treated with Aquathol K herbicide. This herbicide comes with a 24 hour swimming precaution within treatment areas. A potable drinking water restriction of 3 days also comes with this herbicide, but you are free to irrigate plants and turf grass immediately following treatment. Aquathol K was chosen over Galleon SC in these zones due to the steep drop off nature of this shoreline. A narrow band of Curly Leaf Pondweed is found here and Aquathol K has a shorter contact exposure time meaning it is more effective to use in this area of the lake.

The following link connects to the treatment zone map: https://arcg.is/mWOT5

Using the above map link you can determine where we plan to apply the two different herbicides on Loon Lake and if these applications impact your lakefront. Submit questions to 509-960-8133.

Aquatechnex will return to the lake for additional Eurasian/Hybrid Milfoil treatments later in the summer as our surveys determine where the milfoil infestations are occurring on the lake.

2021 Invasive Aquatic Weed Treatments Start up

Aquatechnex will be performing the first aquatic invasive species management applications to the lake the week of June 28th.

Our team will be posting notices on Monday June 28th on affected properties. These will be properties adjacent to the treatment areas and within 400 feet of a treatment.

On Tuesday June 29th our team will applying ProcellaCOR herbicide to highlighted areas to target Eurasian Milfoil. There are no restrictions on water use except for drawing water from the treatment zone to irrigate ornamental plants.

On Wednesday June 30th we will be making a second application with Aquathol herbicide to target a newer invasive species Curly Leaf Pondweed. That product has a 24 hour swimming precaution within the treatment areas.

Click on the link above to view the treatment map and you can determine if these applications impact your lakefront. Submit questions to 360-527-1271.

First Loon Lake Treatment for 2020

Aquatechnex biologists are going to target Eurasian Milfoil in a few spots on the lake that were not infested or treated this past year this week.  The probable date is Thursday and signs will be posted on affected properties prior to application.

We will be using Procellacor herbicide, there are no swimming or potable water restrictions on the water in the treatment area, there is a 24 hour restriction on drawing water to irrigate ornamental plants.

This treatment will not affect the majority of the homes on the lake, we will also be doing an extensive survey and will be determining if and when additional treatments are necessary.

A map of treatment areas can be accessed here Treatment Map

Loon Lake Procellacor Treatment July 9th

Aquatechnex biologists will be posting affected areas of the lake on Monday July 8th and treating areas on the treatment map on Tuesday July 9th.  The treatment map can be viewed at this link, Treatment map, click here

ProcellaCOR is a new aquatic herbicide that is extremely effective on milfoil and hybrid forms of milfoil present in Loon Lake.  As part of a DOE grant, our team tested it against plants from the lake in a concentration exposure time study conducted last year.  ProcellaCOR was added to the Ecology permit effective July 5th.

ProcellaCOR treated areas can be used for swimming and fishing with no restriction just after application.  ProcellaCOR can be used in potable water reservoirs with no restriction on delivery for potable use so there are no drinking water restrictions if anyone draws from the treatment area for this purpose.  There is no restriction on irrigating turf grass from the treatment area, there is a 24 hour restriction on using water from the treatment area to irrigate other ornamental plants.

Questions?  Call 360-527-1271 and our operator will get us a message and we will get right back to you.

Loon Lake Milfoil Surveys this week

Aquatechnex biologists will be performing the first Eurasian Milfoil survey of the year this week on Sunday and Monday.  This will involve our boats collecting hydro-acoustic data to map shape and location of aquatic plant beds, and visiting those sites to determine species composition.  We will also be hosting a tour of the lake with the Steering Committee members Monday afternoon and reporting to their meeting Monday evening.

The Washington Department of Ecology has issued a new permit to utilize the new aquatic herbicide Procellacor with treatments allowed after July 5th.  It is our objective to have Loon Lake treated early the following week.  This product places no restrictions on water use for drinking supply, swimming or fishing.  You can use the lake water to irrigate turf grass with no restriction.  There is a 24 hour restriction on using water from treatment areas to irrigation other plant species.

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2019 Invasive Aquatic Weed Management Program kicks off first week in June

Aquatechnex biologists will be starting this year’s aquatic plant management work with a detailed survey of Loon Lake the first week in June.  This effort will involve hydro-acoustic mapping of the plant beds and a detailed examination of the plant community species make up.  Loon Lake has seen infestations of Eurasian and Hybrid forms of milfoil and Curly Leaf Pondweed.  Both species are detrimental to the health of the lake and beneficial uses.

Hybrid milfoil poses the major problem in the lake at the end of 2018.  The Loon Lake LMD through Stevens County have received a grant to develop treatment strategies to confront this problem plant.  This involved the collection of plants from the lake, DNA testing to determine hybrid strain, shipping plants to the Aquatic Plant Control Research Program at North Carolina State University and subjecting them to a concentration exposure time study with a number of herbicides.  We will be using this information to start operational control work this summer.

The new herbicide Procellacor performed very well in these laboratory experiments and will be used in Loon Lake soon after it is approve for addition to the Washington State Department of Ecology permit in early July.  This technology should provide long term control in Loon Lake.

We will update this with maps of the treatment areas as the survey is completed.  If you have any questions please address them to tmcnabb@aquatechnex.com.

First Eurasian Milfoil and Curly Leaf Pondweed Treatment Scheduled Week of June 25

Aquatechnex biologists will be treating the invasive aquatic weeds in Loon Lake early the week of June 25th.  The plan is to get the lake posted with shoreline signs as required on Monday June 25 and treatments will start early morning on the 26th with anticipated completion by noon.

A treatment map can be viewed by clicking on this link.  June 2018 Treatment Map and Water Use Restriction Zones

There are water use restrictions that will be in place.  Ecology recommends a 24 hour swimming restriction within the treatment areas (does not apply anywhere else in the lake, see map), 2 days for drawing water for irrigation from treatment zone.  Please observe the signs on you property for further information.

2018 Efforts to Manage Invasive Aquatic Weeds Underway

Aquatechnex has been working with the Loon Lake LMD to develop a treatment program to deal with the Hybrid Milfoil present in Loon Lake, and to target a new invader, Curly Leaf Pondweed.

The Hybrid Milfoil problem is being addressed by a operational research program funded by the LMD and the Washington Department of Ecology.  In the fall of 2017, milfoil plants were collected and shipped to a research lab that specializes in management of invasive aquatic weeds at North Carolina State University.  These plants were established and grown out, separated into study tanks and treated with multiple rates of different aquatic herbicides.  This research will allow us to pick the best combination of herbicides and rates to target this growth in the coming year.

In the shorter term, our intention is to treat the growth present with Diquat, a contact herbicide that will provide rapid relief and knock down the problem vegetation in the littoral areas of the lake.

We will be mailing the required public notice to shoreline homeowners this week, and scheduling treatment either the week of the 18th of June or early the week of the 25th.

We will be posting the exact dates and a treatment map at this site closer to the date of treatment so please check back.