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Reducing Phosphorus Impacts to Waterways

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Reducing Phosphorus Impacts on Our Waterways

Too much phosphorus in our lawns, gardens, and farmland can fuel nuisance weeds and algae blooms that choke rivers and lakes, so learning how to reduce phosphorus runoff is key to protecting Michigan’s waterways and water quality.

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Soil Testing

Before you reach for that fertilizer bag, a simple soil test can tell you exactly what your lawn or garden needs - helping you save money and protect local waterways from excess phosphorus pollution.

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Lawn Care Tips

Small changes in how you care for your lawn - like managing grass clippings, choosing eco‑friendly practices, and learning nutrient‑wise techniques - can make a big difference in reducing phosphorus runoff and protecting our rivers and lakes from harmful algal blooms.

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Phosphorus Fertilizer Ordinances

Local phosphorus‑fertilizer ordinances in Van Buren, Allegan, Muskegon, and Ottawa counties now require phosphorus‑free lawn fertilizers to help curb nutrient runoff that fuels algae blooms and protect water quality in rivers and lakes.

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Frequently Asked Questions about Phosphorus

Have questions about phosphorus and how it affects water quality? Our FAQ breaks down what it does, why it matters, and how local ordinances and smart choices can help protect the rivers and lakes we love.

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Death of a Lake

When excess phosphorus feeds algae blooms that choke out oxygen and kill aquatic life, a once‑vibrant lake can spiral toward ecological collapse - so understanding and stopping phosphorus runoff is critical to saving our waterways.

ABOUT US >

Two Rivers Coalition (TRC) is a 501(c)(3) nonprofit dedicated to protecting the Black River and Paw Paw River watersheds in Southwest Michigan. We work to improve water quality, wildlife habitat, and recreational opportunities through conservation, education, and advocacy. Our efforts include hosting public workshops, forums, and lectures, as well as publishing scientific information and resources to keep the community engaged and informed about the health of our rivers.

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