The final Massachusetts Estuaries Project report on the health of Lagoon Pond was unveiled this week in Oak Bluffs, and the blunt diagnosis was summed up in two words: “significantly impaired.”

Dr. Brian Howes, technical director for the project, a joint venture of the state Department of Environmental Protection and the University of Massachusetts at Dartmouth, said that almost all of the 89 estuaries in southeastern Massachusetts are impaired. Lagoon Pond is no exception.

Cochlodinium, the rust-colored algae bloom that has turned up in Cape Pogue and Sengekontacket Ponds, has now invaded Lagoon Pond, Martha’s Vineyard Shellfish Group director Rick Karney confirmed this week. The algae was found in the west arm of the Lagoon.

Lagoon Pond is in trouble. Island residents heard a familiar story on Wednesday from representatives of the Massachusetts Estuaries Project about another degraded coastal pond on the Island, but town officials say that they are determined to find a solution.