Runoff: When it rains, runoff from lawns, sidewalks, and streets carries fertilizer and pesticide residues into Port Washington’s storm drains — which flow directly into Manhasset Bay without treatment.
Toxic Chemicals: Herbicides like glyphosate and pesticides such as carbaryl and chlorpyrifos poison fish, disrupt development, and settle into sediments that harm shellfish.
Nutrient Pollution: Fertilizers rich in nitrogen and phosphorus fuel algae blooms that deplete oxygen, creating “dead zones” where marine life cannot survive.
Ripple Effects: The ripple effects are widespread: shellfishing closures, declining bird and wildlife populations, degraded water quality, and a bay that becomes unsafe for recreation.

When it rains, runoff from lawns, sidewalks, and streets carries fertilizer and pesticide residues into Port Washington’s storm drains.
This video shows the untreated storm water flowing directly into Manhasset Bay.
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