Hayden Lake Watershed Improvement District

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  • Home
  • The District
    • HLWID – District Matters
      • Improvement District vs. Association – What’s the Difference?
      • Privacy Policy
    • Board of Directors
    • Lake Managers
    • Communication and Public Outreach
    • Monthly Meetings
  • The Watershed
    • Blue-Green Algae
    • Citizen Science
    • HLWID – District Matters
      • Improvement District vs. Association – What’s the Difference?
    • Living on Hayden Lake
      • Rights, Permits, etc.: Who to Contact
      • Lake Debris
    • Invasive & Noxious Weeds
      • Curly-Leaf Pondweed
      • Eurasian Watermilfoil
    • Recreation
    • Water Quality
      • Lake Water Quality Studies
      • Hayden Lake Water Quality
      • Idaho Water Quality Standards & Hayden Lake
      • The Eutrophication of Hayden Lake
    • The Watershed
      • Hayden Lake Watershed
      • Honey Badger Project
      • English Point – a Cherished Resource
  • News
  • Contact Us
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News from the 'Shed

the most important NEWS of the day in the HAYDEN LAKE WATERSHED

Stakeholder Engagement Thought Experiment

Communication Signup

Invasive Species Found in Hayden Lake

This is blue-green algae or cyanobacteria on the surface of the water.

Cyanobacteria-HAB Advisory Continues – Watch Out!

This is blue-green algae or cyanobacteria on the surface of the water.

Harmful Algal (Cyanobacteria) Bloom: July 27-?

Treatment Map segment shows notification areas around treatment polygons.

2024 Hayden Lake Aquatic Weed Update – Treatment – Restrictions Lifted

  • Invasive & Noxious Weeds, Living on Hayden Lake, Recreation
  • August 8, 2020
  • Invasive & Noxious Weeds, Living on Hayden Lake, Recreation
  • August 8, 2020

Herbicide and Diver Treatments set for Aug 20-25

Idaho State Department of Agriculture will treat designated areas of Hayden Lake for Eurasian Watermilfoil (EWM) during the week of August 20-25, depending upon weather conditions.

Clean Lakes Inc, ISDA’s contracted applicator, will use ProcellaCOR in areas with sufficiently dense growth. Aquatic Weed Solutions will send a team of divers to manually remove EWM from sparsely populated areas. This mixed strategy represents ISDA’s goal to manage invasive aquatic plants with minimal overall environmental impact, for long-term sustainability.

ProcellaCOR Herbicide Restrictions:

  • Do not irrigate ornamental and broadleaved plants or food-crops until notified. ISDA will collect and test samples 3 days after the application. When the herbicide residue concentration is below two parts per billion (2 ppb), ISDA will lift this restriction. Watch ISDA’s Treatment Plans map for notification.
  • No Drinking Water Restrictions – Residents in treatment areas may continue to draw drinking water from the lake.
  • No Recreation Restrictions – People may continue to swim in treatment areas. Wildlife will not be affected, so fishing in treated areas is allowed.
  • No Turf Irrigation Restrictions – Residents may continue to use lake water to irrigate lawns.

No Restrictions in Diver-Treated Areas

Residents and recreators may drink water, play in, and irrigate from areas where hand-harvesting is taking place. But please keep your eyes open for Aquatic Weed Solutions boats and respect divers’ markers. Keep everyone safe in the water.

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This is blue-green algae or cyanobacteria on the surface of the water.

Cyanobacteria-HAB Advisory Continues – Watch Out!

This is blue-green algae or cyanobacteria on the surface of the water.

Harmful Algal (Cyanobacteria) Bloom: July 27-?

Treatment Map segment shows notification areas around treatment polygons.

2024 Hayden Lake Aquatic Weed Update – Treatment – Restrictions Lifted

Stakeholder Engagement Thought Experiment

Communication Signup

Invasive Species Found in Hayden Lake

Stakeholder Engagement Thought Experiment

Communication Signup

Invasive Species Found in Hayden Lake

  • Related Content: Invasive & Noxious Weeds, Living on Hayden Lake, Recreation
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About HLWID

The mission of the Hayden Lake Watershed Improvement District is to protect and enhance the water quality and the environmental quality within the watershed.

News from the 'Shed

Recent Posts
  • Hayden Creek Area Closed to Shooting Oct. 21-27 ’24
  • Cyanobacteria-HAB Advisory Continues – Watch Out!
  • Harmful Algal (Cyanobacteria) Bloom: July 27-?
  • 2024 Hayden Lake Aquatic Weed Update – Treatment – Restrictions Lifted
  • HLWID at the Wooden Boat Show

More to Explore

Categories
  • Blue-Green Algae
  • Citizen Science
  • HLWID
  • Invasive & Noxious Weeds
  • Lake Debris
  • Living on Hayden Lake
  • Recreation
  • The Watershed
  • Water Quality

Home

News From the 'Shed

Hayden Creek Area Closed to Shooting Oct. 21-27 ’24

Cyanobacteria-HAB Advisory Continues – Watch Out!

Harmful Algal (Cyanobacteria) Bloom: July 27-?

More news ...

The District

  • About the HLWID
  • HLWID – District Matters
  • Board of Directors
  • Lake Managers
  • Communication and Public Outreach
  • Monthly Meetings
  • About the HLWID
  • HLWID – District Matters
  • Board of Directors
  • Lake Managers
  • Communication and Public Outreach
  • Monthly Meetings

The Watershed

  • Blue-Green Algae
  • Citizen Science
  • HLWID
  • Lake Debris
  • Living on Hayden Lake
    • Rights, Permits, Questions, Concerns: Who to Contact
      • Invasive & Noxious Weeds
  • Recreation
  • The Watershed
  • Water Quality
  • Blue-Green Algae
  • Citizen Science
  • HLWID
  • Lake Debris
  • Living on Hayden Lake
    • Rights, Permits, Questions, Concerns: Who to Contact
      • Invasive & Noxious Weeds
  • Recreation
  • The Watershed
  • Water Quality

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Monday 4/16, 7:00 p.m.

HLWID Monthly Meeting

HLWID's Monthly Meetings will move to teleconferencing in order to ensure the health and safety of our constituents. For 4/16's meeting, dial 641-715-0861 and enter code 398963# at the prompt. This is a public meeting; all are welcome.