After a dead humpback whale was found floating six miles off Montauk on July 24, scientists from the Atlantic Marine Conservation Society are seeking to pinpoint the cause of death.

“It’s pretty inconclusive what we’ve found so far,” said Robert DiGiovanni, the founder and chief scientist of the conservation society, which conducted a necropsy of the animal on Friday on a cordoned-off portion of Montauk’s Umbrella Beach. “The whale was severely decomposed so we didn’t really find a lot of internal organs,” said Mr. DiGiovanni.

Suffolk County officials have unveiled a $4 billion, 50-year wastewater plan to rid the county of environmentally unfriendly cesspools and outmoded septic systems.

A proposal from AT&T to build a freestanding 50-foot-high structure at St. Peter’s Chapel on Old Stone Highway in Springs, to house cellphone antennas and associated equipment, was discussed at a meeting of the East Hampton Town Planning Board.