Two New Videos on Successful Eurasian Milfoil Control Projects

Aquatechnex biologists completed two major Eurasian Milfoil control projects this past year that were featured in the SePRO Lake and Pod Hero’s program.

American Lake is a 1200 acre system located in the Tacoma Washington area, the lake is somewhat unique in that about half of the shoreline is federal property associated with the Fort Lewis Army Base. The entire littoral area of the lake was heavily impacted by this noxious aquatic weed and unusable. Our team restored the lake and the story can be viewed at this link: Lake & Pond Heroes – American Lake | SePRO Corporation

Vancouver Lake is a 2700 acre system just outside Portland Oregon on the Washington side of the Columbia River. Over 700 of those acres were dominated by this expanding problem last summer. Our team restored that lake and the story can be viewed at this link: Lake & Pond Heroes – Vancouver Lake | SePRO Corporation

Planning is underway for 2018 Treatment Season

Aquatechnex biologists have met with ISDA Staff to discuss potential treatment options for lakes in the region.  ISDA staff will be conducting surveys to finalize treatment programs and we will moving at their direction to start providing public notification and scheduling of treatments.  Check back in the next few weeks for updates.

New Cocolalla Lake Treatment Date September 12, 2017

Aquatechnex biologists will be treating Eurasian Milfoil in the south end of Cocolalla Lake on September 12th, 2017.  The application will be made about 9:30 am and any properties affected by water use restrictions will be posted the previous day.

A treatment map can be viewed at this link, Treatment Map

Questions can be addressed to Aquatechnex at 360-527-1271 or  They can also be addressed to Nic Zurfluh with Idaho Department of Agriculture at 208-631-9574

Cocolalla Update

The treatment scheduled for today was cancelled, we believe it will be rescheduled shortly.  We are waiting at ISDA’s request for a meeting and their schedule has not been communicated to us at this point.

If there are any questions you may email

Cocolalla Lake Treatment Scheduled for Tuesday this coming week

A portion of Cocolalla Lake will be treated with Diquat for Eurasian Milfoil Control this coming Tuesday.  There is a 24 hour precaution for swimming within the treatment area, a three day restriction from drawing water for potable use or irrigation.  This treatment will not impact the majority of landowners on the lake, it is primarily focused on the southern portion.  Signs will be posted the day prior to treatment on the docks or your shoreline if you are in the treatment area.  You can also look at this map Treatment Map Link to view the location in relationship to your property.  You can also call 360-201-2612 to ask questions of our team.  The Idaho State Department of Agriculture staff contact is Nic Zurfluh at 208-631-9574.

Hayden Lake Update

We will be treating approximately 2 acres at Gem Cove/Hayden Haven this coming Monday July 31st to assist with the sampling schedule for the Water District there.  The balance of the treatment zones on the map will be posted on Tuesday August 1 and treated Wednesday August 2nd weather permitting.  Gem Cove/Hayden Haven map is shown here. gem cover

Cocolalla Lake Public Notices to be Delivered this week

Aquatechnex biologists will be delivering the required public notices two weeks prior to the planned aquatic herbicide treatment for Eurasian Milfoil is performed.  The proposed treatment map is available at the link below.  The blue areas are suggested for treatment, the green buffer area shows where the shoreline notices need to be delivered.

Aquatechnex and ISDA Scientists will be reviewing these treatment zones the week of July 31st and scheduled treatment is the week of August 7th.  This site will be updated that week to explain exact dates and procedures.

Proposed Treatment Map