
NATIVE MILFOIL FOUND
NATIVE MILFOIL Native Milfoil was found in Zone 3 during our recent submerged weed treatment (See picture above.) This is

August 3, 2026 Treatment Update
The eastern portion of Zone 3 (LINK) was treated in the morning of August 3, 2026. Note: the treatment does not

AQUATECHNEX on Offut Lake
On July 31st, our licensed contractor, Aquatechnex, will be treating submerged weeds in Zones 3-4-5-6 with Endothall. See Treatment Zones

Treatment of Submerged Weeds on July 31st, 2026
Our herbicide contractor, Aquatechnex, is planning on treating submerged weeds in Zones Z3-4-5-6 on Friday, July 31st, weather permitting. (Treatment

ALGAE TESTING RESULTS
On July 21, 2026, the Washington State Department of Ecology came to Offut Lake at the request of our OLMD

Aquatic Plant Survey
Aquatic Plant Surveys Part of our lake stewardship is to conduct monthly and yearly surveys of aquatic vegetation. Those surveys

Weed Treatments
Weed Treatments Note: A date-corrected 2026 Treatment Notice (yellow) was mailed the day after the original notice (white) was mailed.

Is My Well Safe During Weed Treatments?
Is My Well Water Safe During Weed Treatments? The quick answer is yes; wells are safe and unaffected by our


Weed Categories
Weed Categories Submerged Native Aquatic Weeds Examples: Large Leaf Pondweed, Water Nymph The expected outcome for control of these weeds

Yard Care is Lake Care
Yard Care is Lake Care Yard care is lake care because chemical runoff from fertilizers, herbicides, and pesticides flows into

FREE LUNCH / Annual OLMD Meeting
Free Lunch/Annual OLMD Meeting All Offut Lake residents are invited to our Annual OLMD Meeting on Saturday, September 12, 2026.

Lake Surveys
Lake surveys are conducted by Offut Lake Management District volunteers during the weed growth cycle, normally in the mornings, between

Algae Bloom Lab Results
6/17/2026 Good News! Staff have received lab results for the algae bloom sample taken at Offutt Lake on 6/15/2026. Microcystin: 0.45µg/L, which is below the

Free Interactive Workshop
Join WALPA (Washington Lakes Protection Association) for a FREE interactive workshop on May 28, 2026 ,from 6-8pm, focused on helping shoreline landowners better understand

Summer 2026 Weather Pattern
A Super El Niño weather pattern is predicted for Summer 2026 and is expected to bring warmer, drier conditions to

Steering Committee
Your Steering Committee voted to increase emphasis on Public Education in 2026 and chose two main focus-areas: Algae and Water

APAM = Aquatic Plant and Algae Management
In Thurston County, the Aquatic Plant and Algae Management (APAM) general permit is utilized by Lake Management Districts to manage

Weed Surveys and Management
We are continuing to use Aquatechnex for our lake surveys and weed management needs. Aquatechnex completed a BioBase study of

You Can Help with Water Quality
As was mentioned earlier in this newsletter, a Super El Niño weather pattern in Summer 2026 is predicted. This is