Long Island weekly water quality report: Mixed conditions

During the summer, a team of students and scientists led by Chris Gobler, professor of marine science at Stony Brook University and director of the New York State Center for Clean Water Technology, tests the water quality weekly at about 30 locations around Long Island. The result is the Long Island Water Quality Report, which aims to provide regular snapshots of ecosystem health, with an eye to how well the region's bays, harbors, rivers and inlets support robust fishing and shellfishing activity.

A good rating indicates clear water, adequate oxygen levels and no or low levels of algae or bacteria from human or animal waste, with levels of all parameters meeting or exceeding all state and federal water quality standards.

This week’s ratings are as follows:

GOOD: Stony Brook Harbor, Port Jefferson Harbor, western Great South Bay, mid-Shinnecock Bay, Shinnecock Inlet, Little Peconic Bay

FAIR: Oyster Bay Harbor, Huntington Harbor, Mount Sinai Harbor, Hewlett Bay, Middle Bay, South Oyster Bay, Fire Island Inlet, eastern Great South Bay, Quantuck Bay, western Shinnecock Bay, Mattituck Inlet, western Flanders Bay, Peconic River, Great Peconic Bay, Sag Harbor, Three Mile Harbor

POOR: Hempstead Harbor, Cold Spring Harbor, central Moriches Bay, eastern Moriches Bay — low dissolved oxygen, fecal coliform, water clarity, algal bloom; Northport Harbor, central Great South Bay, Forge River — low dissolved oxygen, fecal coliform, water clarity, harmful algal bloom