Phase One Treatments Completed

Aquatechnex completed the aquatic herbicide treatments on Moses Lake yesterday afternoon (Wednesday June 27th).  The swimming water use restriction has expired at all sites. The irrigation restriction will expire at all sites for turf three days after treatment and food crops/ornamentals 5 days after treatment.

These restrictions are recommended by the US EPA based on studies required by their registration process.  They only apply in the treatment areas shown on the treatment map, they are not lakewide.  You can access the treatment map from the link on the front page.

if you have questions about this contact us at 360-527-1271.  Thank you.


Aquatic Weed Treatments Start Monday, June 25th

Aquatechnex biologists will be treating Moses Lake for problem aquatic weed growth the week of June 25th.  The plan (weather permitting) is to start on Monday June 25th in Upper Parker Horn.  Tuesday June 26th, Laguna, Cove West, Cascade Valley, Wild Goose and Lower Parker Horn.  One Wednesday June 27th Pelican Horn Areas will be treated.

Prior to treatment properties affected by water use restrictions will be posted by our crews.  These signs will be posted along the shoreline or at your dock.

There is no restriction in the treatment areas for fishing and boating.  While there is no federal restriction on swimming in the treatment areas, the Washington Department of Ecology permit recommends no swimming for 24 hours to let the material dissipate.  There is a five day irrigation restriction.  Water use restrictions do not apply in any area of the lake that is not treated.  People can swim at any time outside the treatment areas.  People can also use their water front to swim and the lake water to irrigate up until the actual treatment occurs.

The treatment map can be viewed at this link. June 25-27 Treatment Map

If there are any questions, please contact or by cell phone at 360-508-1276.  Thank you.

2018 Project Work Underway

The 2018 Invasive Aquatic Weed Management Program is underway.  Aquatechnex biologists will be conducting surveys of the lake this week starting on Monday June 4th.  We will be using the information collected to propose a treatment program to the District by week end and to provide shoreline property owners with required notification.  Treatments will then be scheduled and announced on this web site.

The 2018 treatment maps will go live after the survey is completed and approved by District Management.  Check back throughout the next few weeks for updates and exact treatment dates.

Aquatic Weed Treatments this week

Aquatechnex will be performing Phase Two submerged aquatic weed treatments this week on Thursday August 24th.  The treatment map can be viewed at this link Treatment Map

We will be posting signs on affected properties on Wednesday August 23rd and the treatments will start at Wild Goose early Thursday Morning and then move to the second site on the map.

Water use restrictions are 3 days for irrigation, and there is a 24 hour swimming precaution in the treatment areas.  These restrictions do not apply anywhere else on the lake.

Emergent Weed Treatment Starts Tomorrow

Aquatechnex biologists will be treating Phragmites and Purple Loosestrife along the shorelines of Moses Lake tomorrow (Wednesday August 16) and Thursday August 17th.

The product we will be using is Glyphosate.  This herbicide poses no water use restrictions, water is cleared for swimming, fishing, there are no irrigation restrictions from the treatment.

These applications will not actually enter the water, the material is applied to the foliage on the shoreline.

A map of areas that will be targeted can be found here Treatment Map Link

We will also be reviewing a few other areas and adding them to the map as necessary to meet the needs of the District.

The submerged aquatic weed treatment Phase Two will be next week so check back for information on that.

Moses Lake 2017 Phase Two Starting Next Week

Aquatechnex biologists will be mobilizing to Moses Lake during the Week of August 14th and August 21st to perform 2017 Phase Two Tasks,

During the week of August 14th our team will be targeting emergent noxious aquatic weeds such as Phragmites and Purple Looestrife.  This will not be an aquatic treatment, there are no water use restrictions as this product has none on the label and the herbicide will not be applied directly to the water.

During the Week of August 21st, the Phase Two submerged aquatic weed treatments will take place.  A map will be uploaded shortly that shows the exact locations.  We will also post the exact dates here as this mission gets closer.  There are water use restriction within the marked and mapped treatment zones of 24 hours for swimming and 3 days for irrigation.

Eurasian Milfoil Survey this week

We have noted some Eurasian Milfoil fragments floating in Cascade Region of the lake.  We have not encountered any of this species in the shoreline survey work we have done pre treatment, so we will be performing an aerial survey of the lake to locate any aquatic plant beds throughout the lake and will be ground trothing those locations to confirm species present.  This aerial work will probably be done on Friday of this week with follow up work on Friday or Monday.