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Protecting the delicate ecosystem of Northwest Wisconsin from phosphorus pollution.
This guide details the importance of responsible fertilizing practices in the Hayward Lakes region of Northwest Wisconsin to protect the delicate ecosystem, particularly its lakes, from phosphorus pollution.
The Problem of Phosphorus Pollution
The Problem of Phosphorus Pollution
Hayward Lakes Ecosystem: The region's lakes, including the Chippewa Flowage, Lac Courte Oreilles, and the Namekagon River, are vital to a diverse array of fish and wildlife.
Phosphorus as a Culprit: Phosphorus, a common fertilizer ingredient, acts as "food" for plants but becomes a pollutant in lakes.
Impact of Phosphorus: One pound of phosphorus can fuel 500 pounds of algae growth.
Consequences of Algae Blooms:
Unpleasant odors and reduced recreational opportunities (swimming, fishing).
Formation of "dead zones" with critically low oxygen, suffocating aquatic life.
Potential for harmful toxins posing health risks to humans and pets.
Sources of Phosphorus Pollution:
Point-source pollution: Industrial discharge (a concern, but not the primary source).
Non-point source pollution: Diffuse and difficult to trace, originating from agricultural fields, aging septic systems, and lawns. Fertilizers applied to lawns are a significant contributor.
Historical Context of Lawn Care and Lake Health
Historical Context of Lawn Care and Lake Health
Early 1900s: The Hayward Lakes region was a wild, natural landscape with logging as a primary industry and simple fishing camps.
Post-World War II Era: The "American Dream" ideal of manicured lawns influenced the region.
Increased construction of lakeshore homes replaced natural vegetation with grass.
Proliferation of concrete and impervious surfaces increased runoff.
Unintended Consequences:
Increased erosion, washing sediment and nutrients into lakes.
More frequent and intense algae blooms, indicating ecosystem imbalance.
Growing Awareness and Action (Late 20th Century):
Recognition of declining water quality, increased algae, and diminished fishing.
Wisconsin Shoreland Zoning Regulations (1966): Aimed to protect water quality by regulating development near shorelines.
Local Advocacy Groups:
Lac Courte Oreilles Protective Association (founded in the 1960s).
COLA (Citizens Organized for Lake Awareness, established in 1994).
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