Big Lake Algae Cleanup

Big Lake Algae CleanupBig Lake Algae CleanupBig Lake Algae Cleanup

Big Lake Algae Cleanup

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  • Home
  • About
  • Treatment
  • Education / Prevention
  • Goal
  • Donation Instructions
  • Lake Assessments
  • FAQ
  • Updates
Donate NOW (Credit Card)

PREVENTION Keeping our lake clean and healthy starts with everyday choices. Excess nutrients, especially phosphorus, can lead to algae blooms, poor water quality, and harm wildlife. Follow these simple steps to help protect our water.

Help Prevent Algae

Use Phosphorus-free Fertilizers

 Choose fertilizers with a “0” as the middle number (N–P–K) to avoid adding phosphorus. The three numbers represent nitrogen (N), phosphorus (P), and potassium (K).

Dispose of Grass Clippings & Leaves

  Don’t leave clippings or leaves on your yard,  hard surfaces, or near the shoreline. As they break down, they release phosphorus into the water.  NEVER BLOW THESE INTO THE WATER.

Remove Weeds from Shoreline

Remove weeds by hand when possible. Decomposing plant matter releases phosphorus back into the lake.

Pick up Pet Waste

  Clean up after pets and be mindful of wildlife waste. Animal waste is a significant source of phosphorus pollution.

Cover Bare Soil / Fix Erosion

 Plant grass or native vegetation to stabilize soil. This helps reduce runoff and naturally filters nutrients before they reach the water. 

Do Not Wash Boats / Cars

 Many soaps and detergents contain phosphates that can harm water quality.

Do Not Feed Waterfowl

Plant Shoreline Plants to Filter Runoff

Plant Shoreline Plants to Filter Runoff

 Feeding birds attracts large numbers, increasing waste and nutrient pollution in the lake.

Plant Shoreline Plants to Filter Runoff

Plant Shoreline Plants to Filter Runoff

Plant Shoreline Plants to Filter Runoff

 A diverse mix of native plants helps absorb excess nutrients like phosphorus and nitrogen, reduces runoff, and shades the water helping prevent algae blooms.

Limit Irrigation

Plant Shoreline Plants to Filter Runoff

Limit Irrigation

  Overwatering lawns and gardens can cause runoff that carries nutrients and waste into the lake. Water only when necessary.

Never doubt that a small group of thoughtful, committed citizens can change the world; indeed, it's the only thing that ever has.


Margaret Mead

Algae Bloom Information

Washington State - Department of Health Information

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2020 Big Lake Newsletter

Skagit County Public Works & LMD1

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