Guilebaldo Ramos, 30, of Freehold, was swimming with his co-workers when they saw him at the bottom of the deep end of the Conover Road pool in Millstone around 6:45 p.m., New Jersey State Police Sgt. Philip Curry said.
Ramos' co-workers removed him from the pool and attempted life-saving measures, the sergeant said.
Ramos was pronounced dead at the scene after paramedics arrived.
The incident remained under investigation as of Saturday.
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