Oyster Bay Estuary Water Quality, a project of Friend of the Bay.

In the mid 1990's, Friends of the Bay began a water quality monitoring program (WQMP) to fill the void left when Nassau County cutbacks forced its Department of Health to drop dissolved oxygen testing.

Today, our WQMP is a key component in preserving the harbor complex by increasing awareness of threats to water quality, especially the impact of low dissolved oxygen levels.

Water Quality Monitoring volunteer Hank Kasven at the helm on a foggy morning.

Currently, we are monitoring 19 sites throughout the Oyster Bay/Cold Spring Harbor Estuary (see map).

Friends of the Bay monitors: Dissolved Oxygen, Nitrogen, Coliform Bacteria, Water Clarity and Wildlife.

To learn more about what and how we monitor click here.